Instructions

FlexVu® Explosion-Proof
Universal Display Unit
Model UD10

7.4 Rev: 07/2024 95-8661

 Table of Contents
APPLICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 APPENDIX H — UD10 WITH PIR9400 POINTWATCH H-1
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . H-1
HART Communication . . . . . . . . . . . . . . . . . . . . . 3 Installation Notes . . . . . . . . . . . . . . . . . . . . . . H-2
Magnetic Switches . . . . . . . . . . . . . . . . . . . . . . . . 3 Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . H-2
Gas Level Indication . . . . . . . . . . . . . . . . . . . . . . . 4 Changing Operating Modes . . . . . . . . . . . . . . H-3
Special States . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . H-3
Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . H-4
Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4-20 mA Output Modes . . . . . . . . . . . . . . . . . . . . . . 5 APPENDIX I — UD10 WITH MODEL PIRECL . . . . . . . I-1
Modbus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-1
Device Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . 5 Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-2
Device Display . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-3
Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . I-4

APPENDIX J — UD10 WITH OPEN PATH MODEL OPECL . J-1

IMPORTANT SAFETY NOTES . . . . . . . . . . . . . . . . . 6
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J-1
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . J-3
Identification of Vapor(s) to be Detected . . . . . . . . 7 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J-3
Identification of Detector Mounting Locations . . . . 7 OPECL Transmitter Lamp Fault Condition . . . . J-4
Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . J-4
WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
APPENDIX K — UD10 WITH NTMOS H2S SENSOR . K-1
Power Supply Requirements . . . . . . . . . . . . . . . . 8
Wiring Cable Requirements . . . . . . . . . . . . . . . . . 8 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . K-1
Shield Connections . . . . . . . . . . . . . . . . . . . . . . . 8 Installation Notes . . . . . . . . . . . . . . . . . . . . . . . K-1
Jumper Setting for 4-20 mA Loop . . . . . . . . . . . . 8 Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . K-4
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . K-4
Wiring Procedure . . . . . . . . . . . . . . . . . . . . . . . . . 9
Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . K-5
STARTUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 APPENDIX L — UD10 WITH C706X TOXIC GAS SENSORL-1
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . 16 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . L-1
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . 19 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . L-3
DEVICE REPAIR AND RETURN . . . . . . . . . . . . . 22 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . L-4
Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . L-4
ORDERING INFORMATION . . . . . . . . . . . . . . . . . 22
APPENDIX M — UD10 WITH MODEL CGS SENSOR M-1
APPENDIX A — FM APPROVAL DESCRIPTION . . . . . A-1 Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M-1
APPENDIX B — CSA CERTIFICATION DESCRIPTION . . Important Notes . . . . . . . . . . . . . . . . . . . . . . . . M-1
B-1 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . M-3
APPENDIX C — ATEX APPROVAL DESCRIPTION . . . C-1 Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . M-3
APPENDIX D — IECEx APPROVAL DESCRIPTION . . D-1 K-Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . M-4
APPENDIX E — ADDITIONAL APPROVALS . . . . . . . . . E-1 Menu Structure. . . . . . . . . . . . . . . . . . . . . . . . . M-4
APPENDIX N — UD10 WITH MODEL 505/CGS . . . . N-1
APPENDIX F — UD10 WITH HANDHELD HART Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N-1
COMMUNICATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-1 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . N-2
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-1 Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . N-2
Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . F-1 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . N-3
Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . N-4
APPENDIX G — UD10 WITH GT3000 TOXIC GAS
DETECTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-1 APPENDIX O — UD10 WITH GENERIC 4-20 MA
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-1 SENSOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . O-1
Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . G-2 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . O-1
Live Maintenance . . . . . . . . . . . . . . . . . . . . . . G-2 Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . O-1
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-3
Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . G-4
 Table of Contents
APPENDIX P— UD10 WITH ATX10/AC100 GAS DETECTOR .
P-1
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-1
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-3
Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . P-3
APPENDIX Q — UD10 WITH MODEL PIRDUCT . . . . . . Q-1
Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Q-1
Installation Notes . . . . . . . . . . . . . . . . . . . . . . . Q-2
Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . Q-2
Changing Operation Notes. . . . . . . . . . . . . . . . Q-3
Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Q-4
Menu Structure. . . . . . . . . . . . . . . . . . . . . . . . . Q-4
APPENDIX R — UD10 WITH MODEL PIRECL CO2
DETECTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . R-1
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . R-1
Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . R-2
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . R-3
Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . R-4

APPENDIX S — UD10 WITH LS2000 LINE OF SIGHT GAS

DETECTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . S-1
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . S-1
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . S-3
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . S-3
Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . S-4
 INSTRUCTIONS
FlexVu® Explosion-Proof
Universal Display Unit
Model UD10

IMPORTANT
Be sure to read and understand the entire instruction
manual before installing or operating the gas detection
system. This product can be used with a variety of Det-
Tronics gas detectors to provide early warning of the
presence of a toxic or explosive gas mixture. Proper
device installation, operation, and maintenance is
required to ensure safe and effective operation. If this
equipment is used in a manner not specified in this
manual, safety protection may be impaired.

APPLICATION
The FlexVu® Model UD10 is recommended for
applications that require a gas detector with digital
readout of detected gas levels as well as analog 4-20
mA output with HART, relay contacts, and Modbus
RS485. The UD10 Universal Display Unit is designed for
use with Det‑Tronics gas detectors listed in Table 1.

The display unit is designed and approved as a “stand

alone” device and performs all the functions of a gas DESCRIPTION
controller.
The UD10 Universal Display can be used with various
When furnished with the CGS interface board, the 4-20 mA gas detection devices, with or without
device can be used only with a CGS sensor for detection HART. The unit provides display, output, and control
of combustible gas. The UD10/CGS combination is capabilities for the gas detector.
certified as a “Gas Detector.”
The UD10 utilizes the following I/O:
Gas concentration and unit of measurement are
displayed on a digital display. The display unit provides Signal Inputs: 4-20 mA loop from the sensing device
a linear isolated/non-isolated 4-20 mA DC output signal
(with HART) that corresponds to the detected gas User Inputs: Magnetic switches (4) on the display
concentration. panel
HART communication
All electronics are enclosed in an explosion-proof
aluminum or stainless steel housing. The display unit is Signal Outputs: 4-20 mA output loop with HART
used with a single detector that may be either coupled
Modbus RS485
directly to the UD10, or remotely located using a sensor
termination box. Three alarm relays and one fault relay

The UD10 features non-intrusive calibration. A magnet Visible Outputs: Backlit LCD display
is used to perform calibration as well as to navigate the HART slave interface via HART
UD10’s internal menu. Communicator

7.4 ©2024 Detector Electronics, LLC Rev: 07/2024 95-8661

 Table 1—Range and Default Values for Alarms and Calibration Gas Concentration

UD10 ALARM DATA CALIBRATION

Gas Detector High Alarm Value Low Alarm Value Aux alarm Value Cal Gas
GT3000-- Range 10-90% 5-50% 5-90% 30-90%
Hydrogen Sulfide Default 40% 10% 40% 50%
Range 10-90% 5-50% 5-90% 30-90%
GT3000--Ammonia
Default 40% 10% 40% 50%
Range 10-90% 5-50% 5-90% 30-90%
GT3000--Chlorine
Default 40% 10% 40% 50%
Range 10-60% 5-50% 5-90% 30-90%
GT3000--Hydrogen
Default 40% 10% 40% 50%
Range 5-20.5% v/v 5-20.5% v/v 5-20.5% v/v 20.9% v/v
GT3000--Oxygen
Default 18% v/v 18% v/v 18% v/v 20.9% v/v
GT3000--Carbon Range 10-90% 5-50% 5-90% 30-90%
Monoxide Default 40% 10% 40% 50%
GT3000--Sulfur Range 10-90% 5-50% 5-90% 30-90%
Dioxide Default 40% 10% 40% 50%
GT3000--Nitrogen Range 10-90% 5-50% 5-90% 30-90%
Dioxide Default 40% 10% 40% 50%
Range 10-60% 5-50% 5-90% 50%
PIR9400
Default 40% 10% 40% 50%
Range 10-60% 5-50% 5-90% 50%
PIRDUCT
Default 40% 10% 40% 50%
Range 10-60% 5-50% 5-90% 30-90%
PIRECL
Default 40% 10% 40% 50%
Range 10-60% 5-50% 5-90% 30-90%
PIRECL - CO2
Default 40% 10% 40% 50%
Range 1-3 LFL-meters 0.25-3 LFL-meters NA NA
OPECL
Default 2 LFL-meters 1 LFL-meter NA NA
Range 10-90% 5-50% 5-90% 30-90%
C7064E*
Default 40% 10% 40% 50%
CGS Range 10-60% 5-50% 5-90% 50%
Combustible Default 40% 10% 40% 50%
Model 505/CGS Range 10-60% 5-50% 5-90% N/A
Combustible Default 40% 10% 40% N/A
NTMOS--Hydrogen Range 10-90% 5-50% 5-90% 50%
Sulfide Default 40% 10% 40% 50%
Range 10-90% 5-50% 5-90% N/A
Generic Detector
Default 40% 10% 40% 50%
Range 0.5-4.5 LFL-meters 0.5-4.5 LFL-meters 0.5-4.5 LFL-meters 1.5-4.5 LFL-meters
LS2000
Default 3 LFL-meters 1 LFL-meter 3 LFL-meters 2.5 LFL-meters

Notes: All values are a percentage of full scale with the exception of Oxygen, which is the actual percent of Oxygen, and models OPECL and LS2000, which are the value in LFL-meters.
Low alarm must be less than or equal to the high alarm.
Changing the Measurement Range will reset all alarm and Cal Gas values to the default settings for the selected range.
Alarm relays are selectable for either normally energized or normally de-energized coils, with selectable latching or non-latching contacts. Fault relay is normally energized (with no
faults).
When the auxiliary relay is set for latching and the gas level goes above the auxiliary alarm threshold, the 4-20 mA output will latch to the highest gas level detected until it is reset.
When CGS mode is selected, the default setting for the auxiliary relay is a threshold of 90% full scale, with latching output.
*Does not support C7064C hydrogen sulfide or C7065E oxygen, but includes C7064E hydrogen sulfide,
C7067E chlorine, C7066E carbon monoxide, and C7068E sulfur dioxide.

7.4 2 95-8661
HART COMMUNICATION To actuate a magnetic switch, lightly touch the magnet to the viewing
window of the UD10 directly over the switch icon on the faceplate.
A HART interface provides device status information and field
programming capability.
CAUTION
Handle magnets with care! Personnel wearing
MAGNETIC SWITCHES pacemakers/defibrillators should not handle magnets.
Four internal magnetic switches provide a non‑intrusive user Modern magnet materials are extremely strong
interface that allows navigation through the menu and adjustment magnetically and somewhat weak mechanically. Injury
of configuration parameters in the field without the use of a HART is possible to personnel, and magnets themselves can
handheld device. See Figure 1 for switch locations. easily get damaged if allowed to snap towards each
other, or if nearby metal objects are allowed to be
attracted to the magnets.

PREVIOUS

CANCEL / ESCAPE

ENTER / SELECT

NEXT

B2426

Figure 1—Faceplate of UD10

These switches are used for device configuration, checking status

and event logs, and performing calibration. The switches are
labeled as follows:

CANCEL / ESCAPE

ENTER / SELECT / MENU ACCESS

PREVIOUS or if on Main Screen:

Fault Shortcut

NEXT

7.4 3 95-8661
 NOTE Access To Menus
Det-Tronics offers two magnet options for activating
To access the menus, use the magnet to activate the ENTER/
internal magnetic switches. While the two magnets can
SELECT button. This will display the Main Menu.
usually be used interchangeably, the best results will
be achieved if they are used as follows: The Magnetic
The actual menu structure varies depending upon the device that
Tool (p/n 009700-001) is the stronger magnet and is
is connected to the UD10. Menus for the various devices can be
recommended for activating the switches on the UD10
found in the corresponding appendix in this manual.
viewing window. The Calibration Magnet (p/n 102740‑002)
is recommended for applications that involve initiating
Some areas of the menu contain additional information, which is
calibration or resetting the detector by touching the side
indicated by the presence of an arrow on that particular line. By
of a metal junction box or detector housing (PIRECL,
placing the magnet to the glass over the ENTER/SELECT button,
OPECL, etc). Throughout this manual, the term “magnet”
the next screen with the additional information will be shown.
can refer to either device.
The UD10 automatically returns to the main screen after 10 minutes
GAS LEVEL INDICATION if no activity occurs.
The UD10 display will show a plus sign “+” to the right of the
indicated value (i.e., 100+%LFL, 1000+PPM), to indicate an over- Quick Access/Shortcut: Fault Menu
range. During an under-range condition, the display continues to
To access the fault menu quickly, when a fault is present, touch the
show 0%LFL or 0PPM. Actual sensor signal / gas level can be
magnet to the glass by the PREVIOUS button.
examined using display to check the device (sensor) “PROCESS
VARS” > ANALOG INPUT XX.XX mA to check an actual device
output. Refer to the appropriate appendix for the attached sensor
type.

SPECIAL STATES
Special states other than warm-up, normal operation, and fault
require user action for activation. These include calibration,
configuration, and parameter indication / verification. See Table 2.

Table 2—Special States

UD10 Analog Output Relays

STATE Standard Visual Display
Replicate Mode Fault Alarm(s)
Mode

Warm up 3.5mA “WARM UP” Off

“CALIBRATION” initially, then

Calibration 3.8mA Off
each calibration step Reference Table 1
Same as sensor
Alarm Data
Fault ≤3.6 FAULT ON

Alarm(s) 4-20mA LOW, AUX, HIGH ALARM Off

7.4 4 95-8661
 RELAYS UD10 with Model PIRECL
The display unit has 4 output relays — high alarm, low alarm, PIRECL supports two fault modes: PIR9400 and Eclipse mode.
auxiliary alarm, and fault. The relays have form C (SPDT) contacts. PIR9400 fault mode uses fault codes below 1 mA, while Eclipse
Low, auxiliary, and high alarm relay contacts are selectable for mode uses no levels below 1 mA. In the Standard (default) mode,
latching or non‑latching operation, as well as normally energized or the UD10 programs the PIRECL for Eclipse fault mode to ensure
normally de‑energized (default) coils. During normal operation, the proper HART communication in the event of a fault. In the Replicate
fault relay is energized. mode, the UD10 programs the PIRECL for PIR9400 fault mode.

IMPORTANT
MODBUS COMPATIBILITY
Direct connection of 120/240 VAC to the relay terminals
inside the UD10 enclosure is not allowed, since The UD10 supports RS485 Modbus RTU communi-cation. See
switching relay contacts can induce electrical noise Addendum number 95-8639 for details.
into the electronic circuitry, possibly resulting in a false
alarm or other system malfunction. If the application
requires that AC powered equipment be controlled by DEVICE ENCLOSURE
the transmitter, the use of externally located relays is The UD10 housing is a 5 port aluminum or stainless steel explosion‑proof
recommended. junction box with a clear viewing window.

External relays, solenoids, motors, or other devices that can cause

inductive transients should be transient suppressed. Place a diode DEVICE DISPLAY
across the coil for DC devices. See Figure 2. The UD10 is provided with a 160 x 100 dot matrix backlit LCD
display. See Figure 1.
+
POSITIVE
During normal operation, the LCD continuously displays the
detected gas level, gas type, and units of measurement. The real
}
LA10A
GE 1N4004 DCV LOADS
V275LA20A
TYPICAL TYPICAL
time clock can also be displayed if desired.
NEGATIVE
–
The display shows the following alarm information:
A0179 B0179

• • High gas alarm

Figure 2—Transient Suppression for Inductive Loads
• • Low gas alarm
• • Aux alarm
•
The display indicates the following fault information:
4-20 MA OUTPUT MODES
• • Device fault
The UD10 offers two operating modes for its 4-20 mA output circuit. • • Display fault
•
NOTE The UD10 has smart capabilities to allow easy access to the
A minimum output of 1 mA is required for proper HART following information:
communication.
• • Detector information
• • Measurement range
In the Standard (default) Mode, the linear 4-20 mA output
• • Alarm setpoints
corresponds to 0-100% full scale gas detected at the sensor, with
3.8 mA indicating calibrate mode, and 3.6 mA or lower indicating a • • Alarm and event logs
fault condition. This mode ensures that the current level is always
high enough to support HART communication and must be selected For detailed HART menu structure, refer to the appropriate appendix.
when using HART communication for fault diagnostics.

In Replicate Mode, the output of the UD10 matches the output

of the connected detector (except for loop test/trim, response test,
calibration, or if the UD10 has an internal fault). This mode can be
used with detectors such as PIR9400 or PIRECL where multiple
current levels below 4 mA are used for fault diagnostic purposes.

7.4 5 95-8661
LOGGING IMPORTANT SAFETY NOTES
Events that can be logged in the UD10 include:
CAUTION
• • Calibration (Date, time, and success Y/N are logged for The wiring procedures in this manual are intended to
detectors that do not provide their own calibration logging ensure proper functioning of the device under normal
capabilities.) conditions. However, because of the many variations in
wiring codes and regulations, total compliance to these
Faults that are logged in the UD10 include: ordinances cannot be guaranteed. Be certain that all
• • Detector fault wiring complies with the NEC as well as all local codes.
If in doubt, consult the authority having jurisdiction
• • Low power
before wiring the system. Installation must be done by
• • General fault a properly trained person.

Alarms that are logged in the UD10 for gas detector inputs include:
CAUTION
• • High gas alarm This product has been tested and approved for use in
• • Low gas alarm hazardous areas. However, it must be properly installed
and used only under the conditions specified within
• • Aux alarm.
this manual and the specific approval certificates. Any
device modification, improper installation, or use in a
The UD10 has its own battery backed real time clock (RTC) and its
faulty or incomplete configuration will render warranty
own event logs. The RTC in the UD10 can be set from the UD10
and product certifications invalid.
display, Modbus or HART interfaces. The RTC in the gas detector
(any HART detector having an RTC) can be set independently using
the UD10 menu, or by using the synchronize command, which will set CAUTION
the detector RTC to the same time as the UD10 RTC. See Figure 3. The device contains no user serviceable components.
Service or repair should never be attempted by the
The UD10 can display the detector event and calibration logs (if user. Device repair should be performed only by the
available). The UD10 has its own 1,000‑entry event log available manufacturer.
under the Display Status‑>History‑>Event Log menu.
LIABILITIES
UD10 event logs can be read from the HART interface or the The manufacturer’s warranty for this product is void,
Modbus interface. and all liability for proper function of the detector is
irrevocably transferred to the owner or operator in the
Detector calibration and event logs can also be read from the event that the device is serviced or repaired by personnel
detector HART interface (where available). not employed or authorized by Detector Electronics
Corporation, or if the device is used in a manner not
conforming to its intended use.

WARNING
To avoid a potential Electrostatic Discharge (ESD),
the painted surface of the junction box should only be
cleaned with a damp cloth.
MODBUS CONTROL
SYSTEM
PLC/DCS CAUTION
GAS
DETECTOR HART UD10 Unused conduit entries must be closed with suitably
CONTROL certified blanking elements upon installation.
HART
SYSTEM
PLC/DCS
HART
Handheld AMS

HART
Handheld

Figure 3—UD10 Logging

7.4 6 95-8661
INSTALLATION IDENTIFICATION OF DETECTOR MOUNTING
LOCATIONS
NOTE
The gas detector housing must be electrically connected Identification of the most likely leak sources and leak accumulation
to earth ground. A dedicated earth ground terminal is areas is typically the first step in identifying the best detector
provided on the UD10. mounting locations. In addition, identification of air current/wind
patterns within the protected area is useful in predicting gas leak
NOTE dispersion behavior. This information should be used to identify
Refer to the Model UD10 Safety Manual, number 95- optimum detector installation points.
8668, for specific requirements and recommendations
applicable to the proper installation, operation, and If the vapor of interest is lighter than air, place the detector above
the potential gas leak. Place the detector close to the floor for
maintenance of SIL-Certified Model UD10 displays.
gases that are heavier than air. Note that air currents may cause a
gas that is slightly heavier than air to rise under some conditions.
The detector must always be installed per local installation codes.
Heated gases may also exhibit the same phenomenon.
Before installing the gas detector, define the following application
The most effective number and placement of detectors varies
details:
depending on the conditions on site. The individual designing the
installation must often rely on experience and common sense to
IDENTIFICATION OF VAPOR(S) TO BE DETECTED determine the detector quantity and best locations to adequately
protect the area. Note that it is typically advantageous to locate
It is necessary to identify the vapor(s) of interest at the job site. detectors where they are accessible for maintenance. Locations
The fire hazard properties of the vapor, such as vapor density, near excessive heat or vibration sources should be avoided.
flashpoint, and vapor pressure should be identified and used to
assist in selecting the optimum detector mounting location within Final suitability of possible gas detector locations should be
the area. verified by a job site survey.
For cross sensitivity information, refer to each gas detector’s The gas detector must be mounted with the sensor in the correct
corresponding instruction manual. Refer to Table 6 in the orientation as shown in Table 3.
“Specifications” section for a list of gas detectors and their
corresponding instruction manuals. If the UD10 faceplate is not correctly oriented, it can be rotated
at 90 degree increments by pulling the electronic module from
the four mounting posts that secure it to the junction box and
repositioning it as desired. Note that the module is held in place
Table 3—Device Orientation
by a compression fitting – no screws are involved.
Device Orientation

GT3000 Vertical with Sensor Pointing Down

PIR9400 Horizontal

PIRDUCT Horizontal

PIRECL Horizontal

PIRECL-CO2 Horizontal

OPECL Horizontal

CGS Vertical with Sensor Pointing Down

505/CGS Vertical with Sensor Pointing Down

C706X Vertical with Sensor Pointing Down

NTMOS Vertical with Sensor Pointing Down

Acoustic Vertical with Sensor Pointing Down

LS2000 Horizontal

7.4 7 95-8661
WIRING SHIELD CONNECTIONS
The UD10 provides terminals for proper grounding of wiring
POWER SUPPLY REQUIREMENTS cable shields (located on the sensor, 4-20 mA, and operating
power terminal blocks). These shield terminals are not connected
Calculate the total gas detection system power consumption rate
internally, but are connected to ground through capacitors. The
in watts from cold start-up. Select a power supply with adequate
capacitors ensure an RF ground, while preventing 50/60 Hz ground
capability for the calculated load. Ensure that the selected power
loops.
supply provides regulated and filtered 24 Vdc output power for the
entire system. If a back-up power system is required, a float‑type
Ground all shields as shown in the wiring examples throughout this
battery charging system is recommended. If an existing source of 24
manual.
Vdc power is being utilized, verify that system requirements are met.
The acceptable voltage range is 18-30 Vdc measured at the input to
IMPORTANT
the UD10.
For proper grounding, all junction boxes / metal
enclosures must be connected to earth ground.
NOTE
The power supply must meet the noise requirements
The following are required for installations requiring CE Mark
for HART systems. If noise or ripple on the main power
compliance:
source could interfere with the HART function, an isolated
power source (Figure 11) is recommended. (For detailed • • For shielded cable installed in conduit, attach the wire
information regarding power supply specifications, refer shields to the “shield” connections on the terminal blocks, or to
to the HART Communication Foundation’s document earth ground on the case.
“FSK Physical Layer Specification” HCF_SPEC-54.) • • For installations without conduit, use double shielded
cable. Terminate the outer shield to earth ground on the case.
Terminate the inner shield to the “shield” connection on the
WIRING CABLE REQUIREMENTS
terminal blocks.
Always use proper cabling type and diameter for input power as •
well as output signal wiring. 14-18 AWG, 2.5–0.75 mm2 shielded
stranded copper wire is recommended. Correct wire size depends JUMPER SETTING FOR 4-20 MA LOOP
on the device and wire length. Refer to the appropriate appendix for
In order for the 4-20 mA current loop to operate properly, +24 Vdc
additional information. The maximum cable length from power source
must be applied to terminal P1-3. This can be accomplished in one
to UD10 is 2000 feet. Maximum cable length from UD10 to sensor is
of two ways:
2000 feet.
• • For a non-isolated 4-20 mA loop, set jumper plug as
NOTE shown in Figure 4. This applies +24 Vdc to P1-3 via an internal
The use of shielded cable in conduit or shielded armored connection to terminals P2-2 and P2-5.
cable is highly recommended. In applications where • • If the 4-20 mA loop will receive power from a source other
the wiring is installed in conduit, dedicated conduit than the UD10’s main power source (isolated), set the jumper
is recommended. Avoid low frequency, high voltage, plug as shown in Figure 5 to remove the internal connection.
and non‑signaling conductors to prevent nuisance EMI
problems.

CAUTION
The use of proper conduit installation techniques,
breathers, glands, and seals is required to prevent water
ingress and/or maintain the explosion-proof rating.

7.4 8 95-8661
WIRING PROCEDURE Figure 7 shows a UD10 Wired to a PLC using 3-Wire Shielded
Cable with a 4-20 mA Non-Isolated Sourcing Output.
NOTE
The following section shows the output of the UD10
Figure 8 shows a UD10 Wired to a PLC using 4-Wire Shielded
wired to a generic 4-20 mA signal receiver in various
Cable with a 4-20 mA Non-Isolated Sourcing Output.
configurations. Since the UD10 can be used with a
variety of different detection devices, information that
Figure 9 shows a UD10 Wired to a PLC with a 4-20 mA Isolated
is specific to each detector model (wiring, calibration,
Sourcing Output.
HART menus, etc.) is covered in an appendix that is
dedicated to that device. Refer to the appropriate
appendix at the back of this manual for specific GREASE/LUBRICATION
information when wiring the detection system. For
To ease installation and future removal, ensure that all junction box
information on devices not covered in an appendix, refer
covers and sensor threads are properly lubricated. If the need arises
to the manual provided by the device’s manufacturer.
for additional lubrication, use either Lubriplate grease (see Ordering
Information for part number) or Teflon tape. Avoid the use of silicone
Figure 4 shows jumper plug P12 positioned to power the 4-20 mA
grease.
loop from the main power source (non‑isolated output).
•
Figure 5 shows jumper plug P12 positioned for powering the 4-20
mA loop from an external wire/jumper of from a separate power
source (isolated output).

Sensor Connector Sensor Connector

J3-1

J3-2

J3-3

J3-4

J3-5

J3-1

J3-2

J3-3

J3-4

J3-5

J3 J3
CALIBRATE

CALIBRATE
24 VDC –

24 VDC –
SHIELD

24 VDC +

SHIELD

24 VDC +
4-20 mA

4-20 mA

HIGH ALARM COM J4-1 HIGH ALARM COM J4-1

P1-3 4-20 mA + HIGH ALARM NC J4-2 P1-3 4-20 mA + HIGH ALARM NC J4-2

HIGH ALARM NO J4-3 HIGH ALARM NO J4-3

Output P1-2 4-20 mA – Output P1-2 4-20 mA –
Loop P3 AUX ALARM COM J4-4 Loop P3 AUX ALARM COM J4-4
Relay Connector

Relay Connector

Connector P1-1 SHIELD

AUX ALARM NC J4-5 Connector P1-1 SHIELD
AUX ALARM NC J4-5
P1 AUX ALARM NO J4-6 P1 AUX ALARM NO J4-6

J2 LOW ALARM COM J4-7 J2 LOW ALARM COM J4-7

Modbus J2-3 LOW ALARM NC J4-8 Modbus J2-3 LOW ALARM NC J4-8
Connector LOW ALARM NO J4-9 Connector LOW ALARM NO J4-9
J2-2 + FAULT COM J4-10 WHEN P12 IS IN J2-2 + FAULT COM J4-10

J2-1 – FAULT NC J4-11 THIS POSITION, A J2-1 – FAULT NC J4-11

WHEN P12 IS FAULT NO J4-12 SEPARATE POWER FAULT NO J4-12
P5 P5
IN THIS POSITION, J4 SOURCE IS REQUIRED J4
24 VDC –

P9
24 VDC –

P7
SHIELD

P1-3 IS INTERNALLY P9 P7
SHIELD
24 VDC –

24 VDC –
24 VDC +

24 VDC +
24 VDC +

24 VDC +

TO POWER THE
SHIELD

SHIELD

CONNECTED TO 4-20 MA LOOP

P2-2 AND P2-5
P2-6

P2-5

P2-4

P2-3

P2-2

P2-1

P2-6

P2-5

P2-4

P2-3

P2-2

P2-1

P2 P2
P12 P12

Power Supply Connector Power Supply Connector

C2525 C2526

Figure 4—Position of Jumper P12 for Figure 5—Position of Jumper P12 for
Non-Isolated 4-20 mA Loop Output Isolated 4-20 mA Loop Output

7.4 9 95-8661
 Sensor Connector

J3-1

J3-2

J3-3

J3-4

J3-5
J3

CALIBRATE

24 VDC –
SHIELD

24 VDC +
4-20 mA
Output Loop
Connector
HIGH ALARM COM J4-1
P1-3 4-20 mA +
HIGH ALARM NC J4-2

P1-2 4-20 mA – HIGH ALARM NO J4-3

AUX ALARM COM J4-4

Relay Connector
P1-1 SHIELD
AUX ALARM NC J4-5
P1
AUX ALARM NO J4-6

LOW ALARM COM J4-7

J2
LOW ALARM NC J4-8
J2-3 COM
LOW ALARM NO J4-9
J2-2 RS485 A FAULT COM J4-10

FAULT NC J4-11
J2-1 RS485 B
FAULT NO J4-12

24 VDC –
24 VDC –

24 VDC +
24 VDC +

SHIELD

SHIELD
MODBUS J4
Connector
P2-6

P2-5

P2-4

P2-3

P2-2

P2-1
P2

Power Supply Connector

C2399

Figure 6—Wiring Terminals on UD10 Terminal Board

UD10
DISPLAY UNIT
Sensor Connector
J3-1

J3-2

J3-3

J3-4

J3-5

J3
CALIBRATE

24 VDC –
SHIELD

24 VDC +
4-20 mA

Output Loop
Connector
HIGH ALARM COM J4-1
P1-3 4-20 mA +
HIGH ALARM NC J4-2

P1-2 4-20 mA – HIGH ALARM NO J4-3

PLC 4-20 mA INPUT CARD AUX ALARM COM J4-4

Relay Connector

P1-1 SHIELD
AUX ALARM NC J4-5
P1
AUX ALARM NO J4-6

LOW ALARM COM J4-7

J2
LOW ALARM NC J4-8
J2-3 COM
INPUT LOW ALARM NO J4-9
J2-2 RS485 A FAULT COM J4-10
4-20 mA
FAULT NC J4-11
J2-1 RS485 B
– FAULT NO J4-12
24 VDC –
24 VDC –

24 VDC +
24 VDC +

250-600 24 VDC MODBUS

SHIELD

SHIELD

J4
OHMS + Connector
P2-6

P2-5

P2-4

P2-3

P2-2

P2-1

P2
P12
Power Supply Connector

Notes: Resistor may be external if voltage input card is used.

Sinking resistance at PLC must be 250-600 ohms D2439
for HART communication.

Figure 7—UD10 Wired to PLC using 3-Wire Shielded Cable with 4-20 mA Non-Isolated Sourcing Output

7.4 10 95-8661
 UD10
DISPLAY UNIT
Sensor Connector

J3-1

J3-2

J3-3

J3-4

J3-5
J3

CALIBRATE

24 VDC –
SHIELD

24 VDC +
4-20 mA
Output Loop
Connector
HIGH ALARM COM J4-1
P1-3 4-20 mA +
HIGH ALARM NC J4-2

P1-2 4-20 mA – HIGH ALARM NO J4-3

PLC 4-20 mA INPUT CARD AUX ALARM COM J4-4

Relay Connector
P1-1 SHIELD
AUX ALARM NC J4-5
P1
AUX ALARM NO J4-6

LOW ALARM COM J4-7

J2
LOW ALARM NC J4-8
J2-3 COM
INPUT LOW ALARM NO J4-9
J2-2 RS485 A FAULT COM J4-10
4-20 mA
FAULT NC J4-11
J2-1 RS485 B
– FAULT NO J4-12

24 VDC –
24 VDC –

24 VDC +
24 VDC +
250-600 24 VDC MODBUS

SHIELD

SHIELD
J4
OHMS + Connector

P2-6

P2-5

P2-4

P2-3

P2-2

P2-1
P2
P12
Power Supply Connector

Notes: Resistor may be external if voltage input card is used.

Sinking resistance at PLC must be 250-600 ohms E2440
for HART communication.

Figure 8—UD10 Wired to PLC using 4-Wire Shielded Cable with 4-20 mA Non-Isolated Sourcing Output

UD10
DISPLAY UNIT
Sensor Connector

J3-1

J3-2

J3-3

J3-4

J3-5
J3

CALIBRATE

24 VDC –
SHIELD

24 VDC +
4-20 mA
Output Loop
Connector
HIGH ALARM COM J4-1
P1-3 4-20 mA +
HIGH ALARM NC J4-2

P1-2 4-20 mA – HIGH ALARM NO J4-3

PLC 4-20 mA INPUT CARD AUX ALARM COM J4-4

Relay Connector
P1-1 SHIELD
AUX ALARM NC J4-5
P1
AUX ALARM NO J4-6

LOW ALARM COM J4-7

J2
LOW ALARM NC J4-8
J2-3 COM
INPUT LOW ALARM NO J4-9
J2-2 RS485 A FAULT COM J4-10
4-20 mA
FAULT NC J4-11
J2-1 RS485 B
– FAULT NO J4-12
24 VDC –
24 VDC –

24 VDC +
24 VDC +

250-600 24 VDC MODBUS

SHIELD

SHIELD

J4
OHMS + Connector
P2-6

P2-5

P2-4

P2-3

P2-2

P2-1

P2
P12

Power Supply Connector

Notes: Resistor may be external if voltage input card is used.

Sinking resistance at PLC must be 250-600 ohms +
for HART communication.
24 VDC
–
D2441

Figure 9—UD10 Wired to PLC with 4-20 mA Isolated Sourcing Output

IMPORTANT
Isolated operation is highly recommended to prevent noise or ripple on the main power source from interfering with the HART
function.

7.4 11 95-8661
STARTUP RTC
NOTE
After power has been applied and the warm-up period is complete, The UD10 is set at the factory for US Central Standard
select the UD10 operating mode. To do this: time.

1. Access the Main Menu by touching the magnet to the ENTER/ To display and set the Real Time Clock and Date for the UD10:
SELECT button. From there, navigate to the “Mode Select”
menu. 1. Using the magnet to activate the switches on the UD10 display,
navigate to the RTC menu.
Display Setup
Alarm Setting
Display Setup
Mode Select
Main Menu Alarm Setting
HART Option Mode Select Mode Select
Process Vars
RTC HART Device Main Menu
Display Status HART Option
RS485 PIR9400 Process Vars RTC
Device Status RTC
Input Loop Cal PIRDUCT Display Status Displayed
Display Setup RS485
Contrast Contrl C706X Device Status Seconds
Device Setup Input Loop Cal
Output Mode 505 Display Setup Minutes
Device Cal Contrast Contrl
Backlight Ctrl NTMOS Device Setup Hours
Display Test Output Mode
Heater Ctrl CGS Device Cal Day
Device Test Backlight Ctrl
Write Protect Generic Device Display Test Month
Language Heater Ctrl
OP Feedback Flt Device Test Year
Write Protect
Scrolling Display Language
OP Feedback Flt
Set Scrolling Rate
Scrolling Display
Set Scrolling Rate

2. From the “Mode Select” menu, select and enter the appropriate
operating mode based on the type of detector being used. 2. The first item on the RTC screen is “Displayed”. Y (Yes) or N
(NO) is shown to indicate whether the time and date will be
NOTE displayed on the main screen. To change the setting, use the
If using a PIR9400, note that changing the gas type ENTER/SELECT button to go to the next screen, then use
on the UD10 does not change the gas type at the the PREVIOUS or NEXT buttons to toggle between Y and N.
PIR9400. This change is made using a switch located Once the chosen input is selected, use the ENTER/SELECT
in the PIR9400. Refer to the PIR9400 instruction manual button to enter the selection. Use the CANCEL/ESCAPE
95‑8440 for details. button to exit without changing.

NOTE 3. Use the same method to set time and date.

If using a C706X detector, navigate to the “Device
Setup” menu and select the appropriate gas type and Specifically for the GT3000 Transmitter, the RTC for the transmitter
unit of measurement. can be synchronized to the RTC of the display by going through the
Main Menu->Device Setup->RTC-> 1st slot “Sync W/Disp.”
3. To exit, activate CANCEL/ESCAPE three times to return to the
main display screen.
Latching Alarms
4. If the detector is replaced with another detector type, the UD10 The high, auxiliary and low alarm relay settings are programmable
will not recognize it until the mode is changed. and can be set for latching or non‑latching operation. Alarm
configuration can be done using the local display menu or external
5. If the UD10 Display is in PIR9400 mode and if: HART interface. Latched alarms on the display can be cleared:
a. The connection between PIR9400 and the UD10 is • • Through the Display Setup > Alarm Setting submenu
removed, the UD10 will show a FAULT on the Gas Screen. using the magnet or external HART interface.
When the connection between PIR9400 and UD10 is • • Using the Cancel button on the UD10 faceplate.
restored, the UD10 will remove the FAULT indication when
current increases beyond 3.6 mA. • • Using the Calibration line if it is not used by the attached
detector.
b. Someone removes the PIR9400 & connects a HART
enabled Gas Detector, it will not be recognized by the UD10
Display until the mode is changed to HART.

7.4 12 95-8661
4-20 mA LOOP CALIBRATION UD10 Input Trim
Both the input and output current loops of the UD10 are trimmed When the UD10 is used with a detector that supports HART
at the factory. They can also be trimmed in the field for maximum communication, an automated process can be used to trim the
accuracy using the following procedures. If the detector connected UD10 input. Navigate down the menu to “Input Loop Cal”.
to the UD10 is HART enabled, its 4-20 mA output signal can also
be trimmed. Display Setup
Alarm Setting

When the UD10 is used with a detector that supports HART Main Menu
Mode Select
HART Option
communication, the output of the detector should be calibrated first. Process Vars
RTC
Display Status
RS485
Device Status
Input Loop Cal
Display Setup
HART Detector Signal Calibration Device Setup
Contrast Contrl
Output Mode
Device Cal
Navigate down the menu to Device Test > D/A (Digital to Analog) Display Test
Backlight Ctrl

Trim. Device Test

Heater Ctrl
Write Protect
Language
OP Feedback Flt
Scrolling Display
Main Menu
Set Scrolling Rate
Process Vars
Display Status Device Test
Device Status Self Test D/A Trim
Display Setup Response Test Zero Trim Upon entering Input Loop Cal, the UD10 commands the detector
Device Setup Loop Test Gain Trim to output 4 mA, and then automatically calibrates its own input.
Device Cal D/A Trim
Display Test
The UD10 then commands the detector to output 20 mA and
Device Test subsequently calibrates its own input.
Language
If a non-HART detector is being used, the Input Loop Cal may be
performed with a mA current source or loop calibrator connected to
Select Zero Trim. When this screen is entered, a warning message
the UD10 Sensor Connector. Follow the loop calibration instructions
is presented. Select ENTER to continue. When the message
shown by the UD10 for this procedure.
“Connect Reference Meter” is presented, install the current meter
on the mA line between the detector and UD10. Select ENTER
to continue. When the message “Set Input Current to 4mA?” is
presented, select ENTER to begin the Zero Trim function. The
detector will now set its 4 mA output value. If the value indicated on
the current meter is not 4.00 mA, enter the measured value into the
UD10 using the Previous and Next switches. The UD10 calculates
and corrects for the difference between the actual and entered
values. When the current meter value is at the desired 4.00 mA,
select ENTER to accept the new Zero Trim value.

Select Gain Trim. Follow the same procedure for gain/span

calibration.

7.4 13 95-8661
UD10 Output Trim Self-Test
To calibrate the UD10 output loop, navigate down the menu to This test commands the UD10 to perform a fully automatic internal
Display Test > D/A Trim. test. At the completion of the test, the UD10 will indicate a pass or
fail.
Main Menu
Process Vars
Display Status Response Test
Display Test
Device Status
Display Setup
Self Test D/A Trim This test inhibits the UD10’s outputs, thereby providing a means of
Response Test
testing the system by applying gas to the detector without activating
Zero Trim
Device Setup
Loop Test Gain Trim
Device Cal
Display Test
D/A Trim any alarms or affecting the output.
Device Test
Language NOTE
If the Response Test is not terminated by the operator,
the test will automatically time out after 10 minutes and
Select Zero Trim. When this screen is entered, a warning message the UD10 will return to normal operation.
is presented. Select ENTER to continue. When the message
“Connect Reference Meter” is presented, install the current meter
on the UD10 mA output. Select ENTER to continue. When the Loop Test
message “Set Output Current to 4mA?” is presented, select ENTER This test temporarily forces the UD10’s 4-20 mA output to a specific
to begin the Zero Trim function. The UD10 will now set its 4 mA level. This is an easy way to test the output signal of the UD10 for
output value. If the measured value on the current meter is not 4.00 accuracy, to verify the capabilities of the system, and to verify the
mA, enter the measured value into the UD10 using the Previous and input signal of a receiver. To perform this test, connect a current
Next switches. The UD10 calculates and corrects for the difference meter to the output loop. Navigate to Display Test and select Loop
between the actual and entered values. When the current meter Test, then follow the prompts on the UD10 Screen.
value is at the desired 4.00 mA, select ENTER to accept the new
Zero Trim value. NOTE
If the Loop Test is not terminated by the operator, the
Select Gain Trim. Follow the same procedure for gain/span test will automatically time out after one minute and the
calibration. UD10 will return to normal operation.

OPTIONAL SYSTEM TESTS Proof Test

The following tests are available for verifying proper operation of A Proof Test (bump test) can be performed at any time to verify proper
various functions of the gas detection system: operation and calibration of the system. Since this test does not inhibit
– The Self Test, Response Test, and Loop Test are accessed from the UD10’s outputs, secure any output devices prior to performing the
the “Display Test” screen. (A “Device Test” screen is available test to prevent unwanted actuation.
for performing the same tests on HART enabled detectors.)
– The Proof Test is performed by applying test gas to the sensor. HISTORY
It is not accessed from the “Display Test” screen and does not
inhibit the outputs. There are two separate histories, one for the display and one for
the detector (if available). Both will state the number of hours that
Main Menu
the unit has been operating, and the highest and lowest recorded
Process Vars temperature (with time and date stamp).
Display Status
Display Test
Device Status
Self Test
Display Setup
Response Test
Device Setup
Loop Test
Device Cal
D/A Trim
Display Test
Device Test
Language

7.4 14 95-8661
PASSWORD PROTECTION DISPLAY BACKLIGHT OPERATION
The UD10 allows the use of a password for restricting changes The UD10 can be programmed to turn on the backlight feature
to configuration parameters and limiting access to safety critical of the digital display when an alarm or fault occurs or a magnetic
commands. The UD10 is shipped from the factory with the password switch is activated. Navigate to the Backlight Ctrl screen.
protection (Write Protect) feature disabled.
Display Setup
The following are locked when Write Protect security is enabled: Alarm Setting
Mode Select
Main Menu
Alarm Setting screen – All options except “RST Latch Alarms” Process Vars
HART Option
RTC
Display Status
Mode Select screen – All options Device Status
RS485 Backlight Ctrl
Input Loop Cal Off
HART Option – All options Display Setup
Contrast Contrl On
Device Setup
Output Mode
RTC – All options except Displayed Y/N Device Cal
Backlight Ctrl
Automatic
Display Test
Heater Ctrl
Output Mode Device Test
Write Protect
Language
Display Test screen – All options OP Feedback Flt
Scrolling Display
Set Scrolling Rate
To enable the Write Protect feature, navigate to the Write Protect
screen.
Off = The backlight is always off.
Display Setup
Alarm Setting On = The backlight is always on.
Mode Select
Main Menu
Process Vars
HART Option
Automatic = Normal operation – Backlight is off
RTC
Display Status
Device Status
RS485
Write Protect
Alarm – Backlight flashes on and off
Display Setup
Input Loop Cal
Contrast Contrl
Change State Fault – Backlight is on steady
Device Setup Change Password
Device Cal
Output Mode
Write Protect xxx Magnetic Switch – Backlight is on steady
Backlight Ctrl
Display Test
Heater Ctrl
Device Test
Write Protect The backlight automatically turns off 10 minutes after the last
Language
OP Feedback Flt Magnetic Switch activation.
Scrolling Display
Set Scrolling Rate
If the backlight is on following a magnetic switch activation and then
an alarm condition occurs, the backlight will remain on steady and
Select “Change State” to toggle between Enabled and Disabled. not flash until the 10 minute time-out is complete. Then it will begin
flashing.
Select “Change Password” to enter a new password.

“Write Protect” indicates whether password protection is Enabled

or Disabled.

The default password is 1*******.

IMPORTANT
Take care not to lose the password. Future changes
cannot be made without a password.

7.4 15 95-8661
TROUBLESHOOTING Example:

If a Fault condition is indicated on the UD10 faceplate, the nature of For a Display (UD10) related fault:
the fault can be determined by using the magnetic tool to navigate Main Menu > Display Status > Fault/Status > Fault
to the appropriate Fault screen.
For a Device (Sensor) related fault:
NOTE
Main Menu > Device Status > Fault/Status > Sensor Fault
Refer to the Menu in the appropriate appendix of this
manual for the path to the proper Fault screen.
When the active fault has been identified, refer to the Troubleshooting
Tables for a description of the fault and suggested corrective action.
Shortcut: From the main display screen, touch the
magnet to the “Previous” switch to go directly to the
Fault screen. Refer to Table 4 for Display Faults and Table 5 for Device Faults.

Table 4—Troubleshooting Guide - Display Faults

Display Faults Description Recommended Action

Check sensor wiring.
Input Loop FLT Fault in sensor or sensor loop Calibrate sensor.
Ensure that sensor type matches configuration.
Output Loop FLT Fault in 4-20 mA output loop Check 4-20 mA loop wiring for shorts or opens.
EE Fault Fault in non-volatile memory Return to factory.
ADC Ref Fault ADC reference voltage too high or low Return to factory.
Check power wiring and output voltage of power
24V Fault Problem in 24 volt power supply or power wiring
supply.
Flash Fault FLASH memory Fault Return to factory.
RAM Fault Fault in volatile memory Return to factory.
WDT Fault Watchdog timer is non-functional Return to factory.
Check power source.
12V Fault 12 volt internal power supply out of tolerance
Return to factory.
Check power source.
5V Fault 5 volt internal power supply out of tolerance
Return to factory.
Check power source.
3V Fault 3 volt internal power supply out of tolerance
Return to factory.

Note: A fault condition will cause an oxygen detector to generate an alarm output as the decreasing 4-20 mA signal passes through the alarm range.

7.4 16 95-8661
 Table 5—Troubleshooting Guide - Device Faults

Device Faults Description Recommended Action

Loop Fault Current loop below fault threshold Check 4-20 mA loop wiring for shorts or opens.
Supply Voltage Verify proper wiring to the device and correct
24 volt power supply voltage too low
Fault voltage output from the power supply.
This fault can be caused if the calibration is
allowed to time out. If so, recalibrate.
Ensure that there is enough gas in the calibration
Calibration Fault Bad calibration bottle to complete the calibration.
Ensure that the gas being used for calibration is
the correct type and concentration. It must match
the configured setting.
Memory Fault Self-detected memory fault Return to factory.
ADC Fault Self-detected ADC fault Return to factory.

Internal Voltage Check supply voltage.

Self-detected voltage fault
Fault Return to factory.
Device may have been calibrated with back-
Zero Drift Sensor signal has drifted negative ground gas present. Recalibrate the detector.
Purge with clean air if needed.
Temperature
Temperature sensor is out of range Return to factory.
Sensor Fault
Wrong Sensor Sensor type must match configuration. Change
Wrong sensor type is installed
Type sensor or configuration.
Replace lamp.
Lamp Fault Open or shorted lamp
Return to factory.
Align the device as specified in the instruction
Alignment Fault Open path alignment problem
manual.
Blocked Optic Locate and remove obstruction from the optical
Optical path is blocked
Fault path.
Ensure that the Cal line wiring is not shorted and
Cal Line Active Cal line is active at start-up
the switch is open.
Low Cal Line Cal line is shorted. Check wiring.
Check sensor wiring.
Sensor Fault Self-detected fault with the sensor Calibrate sensor.
Ensure that sensor type matches configuration.
Noise Fault* Excessive noise on signal Check OPECL alignment.
Align ADC Fault* Alignment ADC saturated Check OPECL alignment.
Align Fault* Alignment fault Check OPECL alignment.
Align Warning* Alignment warning Check OPECL alignment.
DAC Fault DAC fault detected Return to factory.
Verify correct power wiring and supply voltage.
General Fault Unspecified fault
Consult the factory.
High Fault Detector output is higher than specified limit Verify correct sensor type and calibration.
Low Fault Detector output is lower than specified limit Verify correct sensor type and calibration.
Perform the cleaning procedure as described in
Dirty Optics Detector optics are dirty
the detector manual, then perform calibration.
Start Cal Fault Calibration fault Verify correct sensor type and calibrate.

*OPECL only.

7.4 17 95-8661
 Table 5—Troubleshooting Guide - Device Faults, Continued

Device Faults Description Recommended Action

Power may have been interrupted while the de-
EE Fault Fault in non-volatile memory vice was updating its internal data logs. Recycle
power.
Sensor signal level is outside the range of the
Ref ADC Sat Return to factory.
AD converter
Sensor signal level is outside the range of the
Active ADC Sat Return to factory.
AD converter
Check power wiring and output voltage of power
24V Fault Problem in 24 volt power supply or power wiring
supply.
Flash CRC Fault Memory fault Return to factory.
RAM Fault Fault in volatile memory Return to factory.
Check power supply voltage.
Low Voltage Power supply voltage outside of limits
Return to factory.
Temp Fault Temperature sensor fault Return to factory.
Software Fault Internal software fault Return to factory.
EE Safety Fault Internal configuration fault Return to factory.
Device may have been calibrated with back-
Gas Under Range Sensor signal has drifted negative ground gas present. Recalibrate the detector.
Purge with clean air if needed.
Sensor type must match configuration. Change
Sensor Mismatch Wrong sensor type is installed
sensor or configuration.
ADC CNTR Fault Internal hardware fault Return to factory.
3V Fault 3 volt internal power supply out of tolerance Return to factory.
Comm Fault Communication fault Check detector wiring and power supply.
Verify correct power wiring and supply voltage.
GEN Fault Unspecified fault
Consult the factory.
12V Fault 12 volt internal power supply out of tolerance Return to factory.
5V Fault 5 volt internal power supply out of tolerance Return to factory.

7.4 18 95-8661
SPECIFICATIONS RELAY CONTACTS—
Three Alarm Relays: Form C, 5 amperes at 30 Vdc.
OPERATING VOLTAGE— Selectable energized/de-energized.
24 Vdc nominal, operating range is 18 to 30 Vdc. Selectable latching or non‑latching.
Ripple cannot exceed 0.5 volt P-P. Refer to Table 1 for range and
default settings.
OPERATING POWER—
Standard model, with heater and backlight off: WARNING
No alarm: 1.5 watts @ 24 Vdc. When in non-latching mode, the control device must
Alarm: 3 watts @ 24 Vdc (20 mA current loop latch the alarm output.
output and all 3 alarm relays energized.)
Backlight on: 0.5 watt additional. One Fault Relay: Form C, 5 amperes at 30 Vdc.
Heater on: 3.5 watts additional. Normally energized for no fault
CGS model: Add 4 watts with CGS interface board and condition with power applied.
CGS sensor installed.
Maximum power in alarm, with heater and backlight on: RELAY RESPONSE TIME—
7 watts @ 30 Vdc (Standard model) ≤ 2 seconds.
11 watts @ 30 Vdc (CGS model)
WIRING TERMINALS—
NOTE 14–18 AWG, 2.5–0.75 mm2 wire can be used.
Heater turns on when the internal temperature drops
below –10°C (default operation). Heater function can be OPERATING TEMPERATURE—
disabled to save power. –55°C to +75°C

NOTE STORAGE TEMPERATURE—

Appropriate relays will be activated when a fault or –55°C to +75°C
alarm occurs.
HUMIDITY RANGE—
CURRENT OUTPUT— 5 to 95% RH (Det-Tronics verified)
Linear isolated 4-20 mA output with HART.
3.8 mA indicates calibrate mode. ELECTRO-MAGNETIC COMPATIBILITY—
3.6 mA or less indicates a fault condition. EMC Directive 2014/30/EU
Maximum loop resistance is 600 ohms at 18 to 30 Vdc. EN 50270:2015

CURRENT OUTPUT RESPONSE TIME— DIMENSIONS—

Toxic gas mode: T90 ≤5 seconds. See Figures 10 and 11.
Combustible gas mode: T90 ≤4 seconds.
Combustible gas - open path mode: T90 ≤4 seconds.
UD10 w CGS: T90 <12 seconds.

CURRENT OUTPUT ACCURACY: GENERAL—

The UD10 adds less than 1% error to the output value.

S Y S T E M O U T P U T A C C U R A C Y: U D10 W I T H
CGS—
The UD10 with CGS sensor directly attached has an overall system
accuracy of ±3% for 0-50 LFL range and ±5% for 51-100 LFL
range, including error added by UD10.

7.4 19 95-8661
 6.48 4.7
(16.5) (11.9)
3.46
(8.8)

5.2
(13.2)

5.86
(14.9)

11.28
(28.7)

R0.175

A2442

Figure 10—Dimensions of UD10 with GT3000 in Inches (Centimeters)

CONDUIT ENTRIES— DETECTOR COMPATIBILITY—

3/4” NPT or M25 The UD10 can be used with the Det‑Tronics gas detectors listed in
Table 6.
ENCLOSURE MATERIAL—
Epoxy coated aluminum or 316 stainless steel. UNIT OF MEASUREMENT—
PPM, % LFL, % V/V, LFLM, or Mg/M3.
SHIPPING WEIGHT—
Aluminum: 4.15 pounds (1.88 kilograms)
Stainless steel: 10.5 pounds (4.76 kilograms)

7.4 20 95-8661
 5.86 CERTIFICATION—
(14.9)
For complete approval details, refer to the appropriate appendix:
5.2
(13.2)
2.7
(6.9) ®

4.7
(11.9)
Appendix A – FM
3.46
(8.8)
Appendix B – CSA
Appendix C – ATEX
Appendix D – IECEx
Appendix E – INMETRO

SIL Approval - IEC 61508

Certified SIL 2 Capable.

For specific information regarding SIL safety certification, refer to

the Model UD10 Safety Reference Manual, number 95-8668,.

3.77
(9.6)

1.28
(3.3)
C2281

Figure 11—Dimensions of Model STB Termination Box

in Inches (Centimeters)

Table 6—Gas Detectors Compatible with the UD10

Catalytic IR Ultrasonic
Device Toxic1 Instruction Manual
Combustible Combustible2 Acoustic
GT3000 X 95-8616
PIR9400 X 95-8440
PIRDUCT X 95-8573
PIRECL X 95-8526
PIRECL-CO2* X 95-8676
OPECL X 95-8556
CGS X 90-1041
505/CGS X 95-8472
C706X3 X 95-8396, 95-8411, 95-8414, 95-8439
NTMOS** X 95-8604
AC100/ATX10 X 95-8657
LS2000 X 95-8714
1 Hydrogen sulfide, Ammonia, Chlorine, Hydrogen, Oxygen,
Carbon Monoxide, and Sulfur Dioxide.
2 Hydrocarbons, see device manual for details.
3 C7065E Oxygen detector is not supported.
* Carbon dioxide only.
** Hydrogen sulfide only.

7.4 21 95-8661
DEVICE REPAIR AND RETURN ORDERING INFORMATION
Prior to returning devices, contact the nearest local Detector Sensor module, transmitter module and termination boxes (if used)
Electronics office so that a Return Material Authorization (RMA) must be ordered separately.
number can be assigned. A written statement describing
the malfunction must accompany the returned device or Refer to the UD10 Model Matrix for ordering details.
component to assist and expedite finding the root cause of
the failure.
ACCESSORIES
Pack the unit properly. Always use sufficient packing material.
Where applicable, use an antistatic bag as protection from Part Number Description
electrostatic discharge. The RMA number should be clearly marked 009700-001 Magnetic Tool
on the outside of the box. 103922-003 AMS Trex Device Communicator
010268-001 Gas Inspector CD
NOTE 010204-001 W6300G1003 Gas Inspector Connector
Inadequate packaging that ultimately causes damage 005003-001 Lubriplate grease, 1 oz.
to the returned device during shipment will result in a 101197-001* Stop Plug, 3/4” NPT, AL
service charge to repair the damage incurred during 101197-004* Stop Plug, 3/4” NPT, SS
shipment. 101197-005 Stop Plug, M25, AL, IP66
101197-003 Stop Plug, M25, SS, IP66
Return all equipment transportation prepaid to the factory in 102804-001 Reducer, M25 to M20, AL
Minneapolis. 102804-003 Reducer, M25 to M20, SS

NOTE *NEMA/Type 4X, IP66 rating requires addition of Teflon tape.

It is highly recommended that a spare be kept on hand
for field replacement to ensure continuous protection.
REPLACEMENT PARTS
Part Number Description
010569-001 Electronics Module - Relay/4-20 mA

7.4 22 95-8661
UD10 MODEL MATRIX
MODEL DESCRIPTION
UD10 Universal Display Unit
TYPE MATERIAL
A Aluminum
S Stainless Steel (316)
TYPE THREAD TYPE
5E 5 Port, 1/2” NPT
5F 5 Port, Metric M20
5M 5 Port, Metric M25
5N 5 Port, 3/4” NPT
TYPE OUTPUTS
25 Relay, 4-20 mA, RS485, HART
28 EQP / DCU Emulator
TYPE APPROVALS*
B INMETRO (Brazil)
R Russia
S SIL
T SIL/FM/CSA/ATEX/CE/IECEx
W FM/CSA/ATEX/CE/IECEx
TYPE CLASSIFICATION (Div/Zone)
2 Ex d (Flameproof)
TYPE OPTIONAL CONDITIONING BOARD
(Blank) None
C CGS
N NTMOS**

* Type Approvals can use one or more letters to designate

the approvals of the product.
** Not required for DCU Emulator model.

7.4 23 95-8661
 APPENDIX A

FM APPROVAL DESCRIPTION

Class I, Div. 1, Groups B, C & D (T4);

Class I, Div. 2, Groups B, C & D (T4);
Class I, Zone 1/2 AEx d IIC (T5);
Class II/III, Div. 1/2, Groups E, F & G.
Tamb –50°C to +75°C
NEMA/Type 4X, IP66
Conduit seal not required.

Performance verified in accordance with:

FM 6320:2014, FM 6325: 2005, ANSI/
ISA-92.0.01:1998, ANSI/ISA-92.00.01:2010, ANSI/
ISA 60079-29-1 (12.13.01): 2013.

This approval does not include or imply approval of gas detector heads or other apparatus to which the subject instrument may be connected.
In order to maintain a Factory Mutual Research approved system, the measurement input signal to which this instrument is connected must
also be approved by Factory Mutual Research.

UD10 hazardous location and performance testing was successfully completed down to –55°C. However, the FM approved rating is limited
to –50°C as there are no conduit fittings, cables, or cable glands that are presently listed for use below –50°C in the US. FM approvals policy
does not allow product temperature ratings to exceed required installation components (such as conduit seals). The user must ensure that
conduit fittings, cables, cable glands, etc., are rated for the expected minimum ambient temperature of the installation.

NOTE
Consideration must be given to overall Gas System Performance Requirements.

WARNING
When a sensor/detector is connected directly to the UD10 housing, the lower ratings
of the two devices will prevail.

7.4 F-24
A-1 95-8661
 APPENDIX B

CSA CERTIFICATION DESCRIPTION

CSA 2029512.
Class I, Div. 1, Groups B, C & D (T5);
Class I, Div. 2, Groups B, C & D (T4);
Class II/III, Div. 1/2, Groups E, F & G.
(Tamb = –55°C to +75°C)
Type 4X
Conduit seal not required.

Performance verified in accordance with:

CSA C22.2 #152.

NOTE
Consideration must be given to overall Gas System Performance Requirements.

WARNING
When a sensor/detector is connected directly to the UD10 housing, the lower
ratings of the two devices will prevail.

7.4 F-25
B-1 95-8661
 APPENDIX C

ATEX APPROVAL DESCRIPTION

0539 II 2 G
FM
APPROVED
®

0539 II 2 D
FM
APPROVED
®

UL21ATEX2385X
Ex db IIC T6 Gb EN 60079-29-1
Ex tb IIIC T90°C Db EN 60079-29-1
(without integral CGS)
Ta = -55°C to +75°C
IP66

Ex db IIC T5 Gb EN 60079-29-1
Ta = -40°C to +75°C
(with integral CGS)
IP53

Performance verified in accordance with:

• EN 60079-29-1:2016
• EN 60079-29-4:2010

Compliance with:
• EN IEC 60079-0:2018
• EN 60079-1:2014
• EN 60079-31:2014

Special Conditions for Safe Use (‘X’):

• The ambient temperatures of the equipment are as follows:
▪ T6: -55°C to +75°C
▪ T5: -40°C to +75°C
▪ T90°C: -55°C to +75°C
• The UD10 and AV10 control units comply with EN 60079-29-1 when connected to a Detector Head that also has been evaluated to
EN 60079-29-1.
• The UD10 with CGS and AV10 with CGS interface board and CGS sensor (UD10*****C) complies with IEC 60079-29-1.
• The UD10 and its variants are to be installed in places where there is low risk of mechanical damage.
• The UD10 and AV10 control unit complies with EN 60079-29-4 when connected to a Detector Head that also has been evaluated to
EN 60079-29-4.
• Flameproof joints are not user serviceable; contact Det-Tronics.
• The actual enclosure must provide a maximum measured reference pressure of 15 bar measured according to EN 60079-1:2014, §16
• See installation instructions on minimizing the risk of electrostatic charge.

NOTE
Consideration must be given to overall Gas System Performance Requirements.

WARNING
When a sensor/detector is connected directly to the UD10 housing, the lower ratings
of the two devices will prevail.

7.4 F-26
C-1 95-8661
CATALYTIC COMBUSTIBLE GAS SENSOR (CGS)

0539 II 2 G
FM
APPROVED
®

Ex db IIC T3, T5 Gb EN60079-29-1

DEMKO 02 ATEX 131323X
T5 (Tamb = –40°C to +75°C)
T3 (Tamb = –55°C to +125°C).

EN Standards: EN IEC 60079-0:2018

EN 60079-1:2014
EN 60079-29 -1:2016

Special Conditions for Safe Use of CGS:

• The CGS Combustible Gas Sensor is to be installed in places where there is a low risk of mechanical damage.
• The CGS Combustible Gas Sensor is certified for use in following ambient temperatures:
▪ Ambient temperature range -40°C to +75°C, Coding: Ex db IIC T5
▪ Ambient temperature range -55°C to +125°C, Coding: Ex db IIC T3
▪ The actual temperature range is marked on the sensor.
• The CGS Combustible Gas Sensor has an ambient temperature rating for performance of -40°C to +75°C.
• The CGS Combustible Gas Sensor can withstand repeated exposures to 125°C for periods up to 12 hours. It is recommended that the
sensor be replaced after maximum 500 hours of exposed to the 125°C temperature condition.
• The CGS Combustible Gas Sensor must be used in conjunction with the before-mentioned ATEX certified Detector Electronics Corp.
combustible gas detector control units for compliance with EN 60079-29-1 standard.
• The actual enclosure must provide a maximum measured reference pressure of 15 bar measured according to EN 60079-1:2014, §15.
• Flameproof joints are not user serviceable; contact Det-Tronics Service.

7.4 C-2
F-27 95-8661
 APPENDIX D

IECEx APPROVAL DESCRIPTION

IECExUL21.0016X
Ex db IIC T6 Gb IEC 60079-29-1
Ex tb IIIC T90°C Db IEC 60079-29-1
(without integral CGS)
Ta = -55°C to +75°C
IP66

Ex db IIC T5 Gb IEC 60079-29-1

Ta = -40°C to +75°C IP66
(with integral CGS)

Performance verified in accordance with:

• IEC 60079-29-1:2016
• IEC 60079-29-4: 2009

Compliance with:
• IEC 60079-0:2017
• IEC 60079-1:2014-06

Special Conditions for Safe Use (‘X’):

• The ambient temperatures of the equipment are as follows:
▪ T6: -55°C to +75°C
▪ T5: -40°C to +75°C
▪ T90°C: -55°C to +75°C
• The UD10 and AV10 control units comply with IEC 60079-29-1 when connected to a Detector Head that also has been evaluated to
IEC 60079-29-1.
• The UD10 with CGS and AV10 with CGS interface board and CGS sensor (UD10*****C) complies with IEC 60079-29-1.
• The UD10 and its variants are to be installed in places where there is low risk of mechanical damage.
• The UD10 and AV10 control unit complies with IEC 60079-29-4 when connected to a Detector Head that also has been evaluated to
IEC 60079-29-4.
• Flameproof joints are not user serviceable; contact Det-Tronics.
• The actual enclosure must provide a maximum measured reference pressure of 15 bar measured according to IEC 60079-1:2014, §16
• See installation instructions on minimizing the risk of electrostatic charge.

NOTE
Consideration must be given to overall Gas System Performance Requirements.

WARNING
When a sensor/detector is connected directly to the UD10 housing, the lower ratings
of the two devices will prevail.

7.4 F-28
D-1 95-8661
CATALYTIC COMBUSTIBLE GAS SENSOR (CGS)

IECEx UL 21.0018X
Ex db IIC T3, T5 Gb
T5 = -40°C to +75°C
T3 = -55°C to +125°C

Special Conditions of Safe Use of CGS:

• The CGS Combustible Gas Sensor is to be installed in places where there is a low risk of mechanical damage.
• The CGS Combustible Gas Sensor is certified for use in following ambient temperatures:
▪ Ambient temperature range -40°C to +75°C, Coding: Ex db IIC T5
▪ Ambient temperature range -55°C to +125°C, Coding: Ex db IIC T3
▪ The actual temperature range is marked on the sensor.
• The CGS Combustible Gas Sensor has an ambient temperature rating for performance of -40°C to +75°C.
• The CGS Combustible Gas Sensor can withstand repeated exposures to 125°C for periods up to 12 hours. It is recommended that the
sensor be replaced after maximum 500 hours of exposed to the 125°C temperature condition.
• The CGS Combustible Gas Sensor must be used in conjunction with the before-mentioned IECEx certified Detector Electronics Corp.
combustible gas detector control units for compliance with IEC 60079-29-1 standard.
• The actual enclosure must provide a maximum measured reference pressure of 15 bar measured according to IEC 60079-1:2014, §15.
• Flameproof joints are not user serviceable; contact Det-Tronics Service.

7.4 D-2 95-8661

 APPENDIX E

ADDITIONAL APPROVALS

INMETRO (Brazil)

UL-BR 24.0681X
Ex db IIC T5 Gb
T5 (Tamb –40°C to +75°C) With integral CGS
– OR –
Change to:
Ex db IIC T6 Gb
Ex tb IIIC T90°C Db
T6 (Tamb –55°C to +75°C) Without integral CGS

All cable entry devices shall be Brazil certified in the type of explosion protection, flameproof enclosure “d,” suitable for the conditions of use
and correctly installed, with an ingress protection rating of IP66.

A screw or cover lock is provided for a secondary means of fastening the cover.

Compliance with:
ABNT NBR IEC 60079-0:2020
ABNT NBR IEC 60079-1:2016
ABNT NBR IEC 60079-31:2014
ABNT NBR IEC 60079-29-1:2008
IEC 60079-29-4:2009 (Not listed for INMETRO)

Specific Conditions of Use for Ex Equipment or Schedule of Limitations for Ex Components:

• The ambient temperatures of the equipment are as follows:

▪ T6: -55°C to +75°C
▪ T5: -40°C to +75°C
▪ T90°C: -55°C to +75°C
• The UD10 and AV10 control units comply with IEC 60079-29-1 when connected to a Detector Head that also has been evaluated to IEC
60079-29-1.
• The UD10 with CGS and AV10 with CGS interface board and CGS sensor (UD10*****C) complies with IEC 60079-29-1.
• The UD10 and its variants are to be installed in places where there is low risk of mechanical damage.
• The UD10 and AV10 control unit complies with IEC 60079-29-4 when connected to a Detector Head that also has been evaluated to IEC
60079-29-4.
• Flameproof joints are not user serviceable; contact Det-Tronics.
• The actual enclosure must provide a maximum measured reference pressure of 15 bar measured according to IEC 60079-1:2014, §16
• See installation instructions on minimizing the risk of electrostatic charge.

7.4 F-D-3
E-1 95-8661
 APPENDIX F

USING A HANDHELD HART DEVICE CONNECTED TO THE UD10’S 4-20 MA OUTPUT

(UD10 WITH ANY DETECTOR)

NOTE
Refer to the front of this manual for complete information regarding installation, wiring, and startup of the UD10.

WIRING
UD10
DISPLAY UNIT
Sensor Connector

J3-1

J3-2

J3-3

J3-4

J3-5
J3

CALIBRATE

24 VDC –
SHIELD

24 VDC +
4-20 mA
Output Loop
Connector
HIGH ALARM COM J4-1
P1-3 4-20 mA +
HIGH ALARM NC J4-2

P1-2 4-20 mA – HIGH ALARM NO J4-3

PLC 4-20 mA INPUT CARD AUX ALARM COM J4-4

Relay Connector
P1-1 SHIELD
AUX ALARM NC J4-5
P1
AUX ALARM NO J4-6

LOW ALARM COM J4-7

J2
LOW ALARM NC J4-8
J2-3 COM
INPUT LOW ALARM NO J4-9
J2-2 RS485 A FAULT COM J4-10
4-20 mA
FAULT NC J4-11
J2-1 RS485 B
– FAULT NO J4-12

24 VDC –
24 VDC –

24 VDC +
24 VDC +
250-600 24 VDC MODBUS

SHIELD

SHIELD
J4
OHMS + Connector

P2-6

P2-5

P2-4

P2-3

P2-2

P2-1
P2
P12

Power Supply Connector

Notes: Resistor may be external if voltage input card is used.

Sinking resistance at PLC must be 250-600 ohms +
for HART communication.
24 VDC
–
D2441

HART Handheld Communicator Connected to the UD10’s 4-20 mA Output

IMPORTANT
To ensure proper operation of the HART communication system, a power supply with low noise and ripple must be used. If
noise or ripple on the main power source could interfere with the HART function, an isolated power source is recommended.
For additional information, refer to “Power Supply Requirements” in the “Wiring” section of this manual.

MENU STRUCTURE

Refer to the following menu tree when using a HART handheld communicator, connected to the UD10’s 4-20 mA output.

MENU HELP
Status menus only allow the user to view the data.
The Setup menus allow the user to both view and edit the data.

7.4 F-1 95-8661

 APPENDIX G

UD10 with GT3000 TOXIC GAS DETECTOR

NOTE
For complete information regarding the GT3000 Gas Detector, refer to instruction manual 95-8616.

WIRING
UD10 with GT3000
4000

3500

3000
AWG
Distance in ft.

2500 Wire Size

2000 12
14
1500 16
1000
18

500

0
18 19 20 21 22 23 24 25 26 27 28 29 30
Power Supply Voltage

Notes: Maximum recommended cable length from power source to UD10 is 2000 feet.
Maximum recommended cable length from UD10 to sensor/STB termination box is 2000 feet.

BLACK

RED
UD10
DISPLAY UNIT
GREEN
Sensor Connector
J3-1

J3-2

J3-3

J3-4

J3-5

J3
CALIBRATE

24 VDC –
SHIELD

24 VDC +
4-20 mA

Output Loop SEE NOTE 1

Connector
HIGH ALARM COM J4-1
P1-3 4-20 mA +
HIGH ALARM NC J4-2

P1-2 4-20 mA – HIGH ALARM NO J4-3

AUX ALARM COM J4-4

Relay Connector

P1-1 SHIELD
AUX ALARM NC J4-5
P1
AUX ALARM NO J4-6

LOW ALARM COM J4-7

J2
LOW ALARM NC J4-8 GT3000
J2-3 COM
LOW ALARM NO J4-9 GAS DETECTOR
J2-2 RS485 A FAULT COM J4-10

FAULT NC J4-11
J2-1 RS485 B
FAULT NO J4-12
24 VDC –
24 VDC –

24 VDC +
24 VDC +

MODBUS
SHIELD

SHIELD

J4
Connector
P2-6

P2-5

P2-4

P2-3

P2-2

P2-1

P2 NOTE 1 CONNECT THE GREEN SENSOR LEAD

TO THE CHASSIS GROUND LUG ON THE
Power Supply Connector INSIDE BOTTOM OF THE DISPLAY ENCLOSURE.

NOTE 2 UD10 HOUSING MUST BE ELECTRICALLY

C2400 CONNECTED TO EARTH GROUND.

GT3000 Detector Wired Directly to UD10

7.4 G-1 95-8661

 SEE NOTE 1

BLACK
RED

UD10 DISPLAY UNIT

Sensor Connector

SENSOR TERMINATION BOX

J3-1

J3-2

J3-3

J3-4

J3-5
J3

CALIBRATE

24 VDC –
SHIELD

24 VDC +
4-20 mA
Output Loop
Connector GREEN
HIGH ALARM COM J4-1

D
P1-3 4-20 mA +

RE
HIGH ALARM NC J4-2

K
AC
HIGH ALARM NO J4-3

BL
P1-2 4-20 mA –
AUX ALARM COM J4-4

Relay Connector
P1-1 SHIELD

RED
AUX ALARM NC J4-5
BLACK
P1
AUX ALARM NO J4-6

LOW ALARM COM J4-7

J2
LOW ALARM NC J4-8
J2-3 COM
LOW ALARM NO J4-9
J2-2 RS485 A FAULT COM J4-10

FAULT NC J4-11
J2-1 RS485 B
FAULT NO J4-12
GT3000

24 VDC –
24 VDC –

24 VDC +
24 VDC +
MODBUS
SHIELD

SHIELD
J4
Connector GAS DETECTOR
P2-6

P2-5

P2-4

P2-3

P2-2

P2-1
P2

Power Supply Connector

NOTE 1 GROUND THE SHIELD AT THE DISPLAY

UNIT END ONLY.

NOTE 2 HOUSINGS MUST BE ELECTRICALLY

C2401 CONNECTED TO EARTH GROUND.

UD10 Wired to GT3000 Detector with Sensor Termination Box

ORIENTATION LIVE MAINTENANCE

The device must be mounted in a vertical position only, with the NOTE
GT3000 pointing down. The sensor module on the GT3000 Gas Detector can be
hot swapped, i.e., replaced without removing power or
de‑classifying the area. To replace a GTX Transmitter
connected to the UD10 with a new transmitter or a
different detector type, the area must be de‑classified.

NOTE
Removing the sensor module with power applied will
result in a fault condition until a new sensor module of
the same type is installed. When replacing an oxygen
sensor, this action will also result in an alarm condition
as the decreasing 4-20 mA signal passes through
the alarm range. Inhibit response devices to prevent
unwanted actuation.

For complete information regarding sensor replacement with the

GT3000 Gas Detector, refer to the GT3000 instruction manual,
number 95-8616.

7.4 G-2 95-8661

CALIBRATION From UD10
1. Using the magnet to activate the switches on the UD10
GT3000 WITH TOXIC GAS SENSOR display, navigate to the Calibration menu.

From GT3000: Main Menu

Process Vars
1. Using the magnet, activate the magnetic calibration switch on Display Status
the GT3000. The green LED turns to yellow. Device Status Device Cal
Calibration
Display Setup Cal Gas Conc
Execute
Device Setup Calibration
Abort
Device Cal Change Snsr Type
Display Test
Device Test
Language

LED

MAGNETIC
SWITCH 2. Activate “Execute” (Enter/Select) to start calibration.

3. The UD10 will display “Waiting for Zero” on the main display
screen, with the yellow LED on the detector housing illuminated
continuously. The device automatically performs the zero
calibration.

4. The UD10 will then display “Waiting for Gas” on the screen,
while the yellow LED on the detector is flashing.
A2443

5. Apply calibration gas to the sensor.

Location of Magnetic Switch on GT3000
6. The UD10 will display “Waiting for Span” on the screen, while
the yellow LED on the detector is flashing.
2. The UD10 will display “Waiting for Zero” on the main display
7. When the UD10 displays “Remove Cal Gas” on the screen and
screen, with the yellow LED on the detector housing illuminated
the LEDs on the detector housing are off, remove the calibration
continuously.
gas.
3. The UD10 will then display “Waiting for Signal” on the screen,
8. After completion of a successful calibration, the UD10
while the yellow LED on the detector is flashing. The device
automatically returns to the normal mode with the green LED
automatically performs the zero calibration.
illuminated on the detector.
4. The UD10 will display “Waiting for Gas” on the screen, while the
yellow LED on the detector is flashing.

5. Apply calibration gas to the sensor.

6. The UD10 will display “Waiting for Span” on the screen, while UD10 mA Output During Calibration
the yellow LED on the detector is flashing. (UD10 with GT3000)
Replicate
7. When the UD10 displays “Remove Cal Gas” on the screen and UD10 Display Reading Standard Mode
Mode
all LEDs on the detector housing are off, remove the calibration
gas. Waiting for Zero 3.8 3.8

Waiting for Gas 3.8 3.8

8. After successful calibration, the UD10 automatically returns
to the normal display with the green LED illuminated on the Waiting for Span 3.8 3.8
detector.
Remove Cal Gas 3.8 3.8

Back to Normal 4.0 4.0

7.4 G-3 95-8661

GT3000 WITH OXYGEN SENSOR From UD10:
1. Using the magnet to activate the switches on the UD10 display,
From GT3000:
navigate to the “Calibration” menu.
1. Using the magnet, activate the magnetic calibration switch on
the GT3000. The green LED turns to yellow. Main Menu
Process Vars
Display Status
2. The device automatically performs the zero calibration. Device Status Device Cal
The yellow LED on the GT3000 is on continuously. Display Setup Cal Gas Conc
Calibration
Execute
The UD10 displays “Waiting for Zero” on the main display Device Setup Calibration
Abort
Device Cal Change Snsr Type
screen. Display Test
Device Test
3. When the yellow LED on the GT3000 flashes, the device Language
automatically performs the span calculation.
If using bottled 20.9% oxygen, apply immediately.
The UD10 displays “Waiting for Span” on the screen. 2. Activate “Execute” (Enter/Select) to start calibration.

4. After successful calibration, the green LED on the GT3000 is on 3. The UD10 will display “Waiting for Zero” on the main display
continuously and the UD10 automatically returns to the normal screen, with the yellow LED on the detector housing illuminated
display. continuously. The device automatically performs the zero
Remove calibration gas (if used). calibration.

4. When the UD10 displays “Waiting for Span” on the screen

and the yellow LED on the detector is flashing, the device
automatically performs the span calculation. If using bottled
20.9% oxygen, apply immediately.

5. After completion of a successful calibration, the UD10

automatically returns to the normal mode with the green LED
illuminated on the detector. Remove calibration gas (if used).

MENU STRUCTURE

UD10 with GT3000 Detector

Refer to the following menu when using the UD10’s LCD display
and internal magnetic switches.

When connecting a HART Communicator to the UD10’s 4-20 mA

output, refer to the “UD10 HART Handheld” menu in Appendix F.

MENU HELP
Status menus only allow the user to view the data. The
Setup menus allow the user to both view and edit the
data.

7.4 G-4 95-8661

 APPENDIX H

UD10 with PIR9400 POINTWATCH IR GAS DETECTOR

NOTE
For complete information regarding the PIR9400 Gas Detector, refer to instruction manual 95-8440.

WIRING
UD10 with PIR9400/PIRDUCT
4000

3500

3000
AWG
Distance in ft.

2500 Wire Size

2000 12
14
1500 16
1000
18

500

0
18 19 20 21 22 23 24 25 26 27 28 29 30
Power Supply Voltage

Notes: Maximum recommended cable length from power source to UD10 is 2000 feet.
Maximum recommended cable length from UD10 to PIR9400/PIRTB termination box is 2000 feet.

UD10 DISPLAY UNIT

Sensor Connector

PIR9400
J3-1

J3-2

J3-3

J3-4

J3-5

J3
POINTWATCH
CALIBRATE

24 VDC –
SHIELD

24 VDC +
4-20 mA

Output Loop
Connector YELLOW
HIGH ALARM COM J4-1
4-20 mA +
BLACK
P1-3 HIGH ALARM NC J4-2
WHITE
P1-2 4-20 mA – HIGH ALARM NO J4-3

AUX ALARM COM J4-4 RED

Relay Connector

P1-1 SHIELD
AUX ALARM NC J4-5 GREEN
P1
AUX ALARM NO J4-6

LOW ALARM COM J4-7

J2
SEE NOTE 1
LOW ALARM NC J4-8
J2-3 COM
LOW ALARM NO J4-9
J2-2 RS485 A FAULT COM J4-10

FAULT NC J4-11
J2-1 RS485 B
FAULT NO J4-12
24 VDC –
24 VDC –

24 VDC +
24 VDC +

MODBUS
SHIELD

SHIELD

J4
Connector
P2-6

P2-5

P2-4

P2-3

P2-2

P2-1

P2

NOTE 1 CONNECT THE GREEN SENSOR LEAD

Power Supply Connector
TO THE CHASSIS GROUND LUG ON THE
INSIDE BOTTOM OF THE DISPLAY ENCLOSURE.

NOTE 2 UD10 HOUSING MUST BE ELECTRICALLY

C2402 CONNECTED TO EARTH GROUND.

PIR9400 Wired Directly to UD10

7.4 H-1 95-8661

 PIRTB JUNCTION BOX
PIR9400
DETECTOR
UD10 DISPLAY UNIT
SEE NOTE 1
Sensor Connector GREEN

J3-1

J3-2

J3-3

J3-4

J3-5
J3
SPARE CHASSIS

CALIBRATE
CAL

24 VDC –
SHIELD

24 VDC +
4-20 mA
Output Loop CAL
Connector YELLOW
HIGH ALARM COM J4-1 4 – 20 4 – 20 WHITE
4-20 mA +
P1-3 HIGH ALARM NC J4-2 RET RET BLACK
HIGH ALARM NO J4-3 RED
P1-2 4-20 mA –
+24 +24
AUX ALARM COM J4-4

Relay Connector
P1-1 SHIELD
AUX ALARM NC J4-5
P1
AUX ALARM NO J4-6

LOW ALARM COM J4-7

J2
LOW ALARM NC J4-8
J2-3 COM
LOW ALARM NO J4-9
J2-2 RS485 A FAULT COM J4-10

FAULT NC J4-11
J2-1 RS485 B
FAULT NO J4-12
24 VDC –
24 VDC –

24 VDC +
24 VDC +

MODBUS
SHIELD

SHIELD

J4
Connector
P2-6

P2-5

P2-4

P2-3

P2-2

P2-1

P2

NOTE 1 CONNECT THE GREEN SENSOR LEAD

Power Supply Connector
TO THE CHASSIS GROUND LUG ON THE
INSIDE BOTTOM OF THE PIRTB.

NOTE 2 HOUSINGS MUST BE ELECTRICALLY

A2556 CONNECTED TO EARTH GROUND.

UD10 Wired to PIR9400 with PIRTB Termination Box

INSTALLATION NOTES ORIENTATION

It is highly recommended that the PIR9400 be installed in the
IMPORTANT horizontal position. The detector is not position-sensitive in terms
Hydrocarbon-based grease emits hydrocarbon vapors of its ability to detect gas. However, the weather baffle assembly
that will be measured by PointWatch, resulting in provides superior performance when installed in a horizontal
inaccurate gas level readings. Use only low vapor position. See illustration below.
pressure Lubriplate grease or Teflon tape on the
PointWatch detector and associated termination box.
Do not get grease on the optics of the detector. A
suitable grease is listed in the “Ordering Information”
section of this manual.

IMPORTANT
In applications where both PointWatch and catalytic
type sensors are used, ensure that the grease used
to lubricate the PointWatch detector threads does not
come into contact with the catalytic sensors, since
poisoning of the catalytic sensors could result. It is
strongly recommended that maintenance personnel
wash their hands between handling the two types of
sensors.

7.4 H-2 95-8661

CHANGING OPERATING MODES UD10 mA Output During Calibration
When used with a PIR9400, the operating mode of the UD10 must (UD10 with PIR9400)
be changed from “HART Device” to “PIR9400” mode. Refer to the Replicate
UD10 Display Reading Standard Mode
“Startup” section of this manual for details. Mode

Waiting for Zero 3.8 2.2

CALIBRATION Waiting for Gas 3.8 3.8

To initiate calibration of the PIR9400 from the UD10 Display: Waiting for Span 3.8 3.8

Remove Cal Gas 3.8 3.8

1. Using the magnet to activate the switches on the UD10
display, navigate to the “Calibration” menu. Back to Normal 4.0 4.0

Main Menu
Process Vars
Display Status 3. The UD10 will then display “Waiting for Gas” on the screen,
Device Status Device Cal Calibration
Display Setup Calibration Execute
while the LED at the PIRTB is flashing red.
Device Setup Cal Gas Conc Abort
Device Cal 4. Apply calibration gas to the PIR9400 detector.
Display Test
Language
5. The UD10 will display “Waiting for Span” on the screen, with a
red flashing LED at the PIRTB.
2. Activate “Execute” (Enter/Select) to start calibration.
6. When the UD10 displays “Remove Cal Gas” on the screen and
3. The UD10 will display “Waiting for Zero” on the main display the LED at the PIRTB turns off, remove the calibration gas.
screen.
7. After successful calibration, the UD10 automatically returns to
4. The UD10 will then display “Waiting for Gas” on the screen. the normal mode, and the LED on the PIRTB remains off.

5. Apply calibration gas to the PIR9400.

6. The UD10 will continue to display “Waiting for Gas” on the

screen. CALIBRATE SWITCH

HOLD CALIBRATION MAGNET

7. When the UD10 displays “Remove Cal Gas” on the screen, AT OUTSIDE BASE OF JUNCTION
BOX AT THIS LOCATION
REMOTE LED

remove the calibration gas from the PIR9400. TO ACTIVATE CALIBRATION SWITCH

8. The UD10 automatically returns to the normal mode after

successful calibration.

To initiate calibration from the PIRTB Termination Box while

monitoring calibration using the UD10 display:

1. Using the magnet, activate the magnetic calibration switch on

the PIRTB Termination Box. The LED at the PIRTB turns from
off to steady red.

2. The UD10 will display “Waiting for Zero” on the main display
screen, with a steady red LED at the PIRTB.

B2056

PIRTB Termination Box

7.4 H-3 95-8661

MENU STRUCTURE

UD10 with PIR9400 PointWatch Detector

Refer to the following menu when using the UD10’s LCD display
and internal magnetic switches.

When connecting a HART Communicator to the UD10’s 4-20 mA

output, refer to the “UD10 HART Handheld” menu in Appendix F.

MENU HELP
Status menus only allow the user to view the data. The
Setup menus allow the user to both view and edit the
data.

7.4 H-4 95-8661

 APPENDIX I

UD10 with MODEL PIRECL

NOTE
For complete information regarding the PIRECL Gas Detector, refer to instruction manual 95-8526.

WIRING

UD10 with PIRECL/OPECL/Model 505/NTMOS

4000

3500

3000
AWG
Distance in ft.

2500 Wire Size

2000 12
14
1500 16
1000
18

500

0
18 19 20 21 22 23 24 25 26 27 28 29 30
Power Supply Voltage

Notes: Maximum recommended cable length from power source to UD10 is 2000 feet.
Maximum recommended cable length from UD10 to detector/STB termination box is 2000 feet.

7.4 I-1 95-8661

 MODEL PIRECL
BLACK
24 VDC – 1

24 VDC + 2 RED

CALIBRATE 3

24 VDC – 4

24 VDC + 5 1
4-20 MA + 6

4-20 MA – WHITE
7

RS-485 B 8

RS-485 A 9
UD10 DISPLAY UNIT
RELAY POWER (RED) 10
WIRING TO OPTIONAL FAULT (ORANGE) 11
RELAY BOARD Sensor Connector
NO USER CONNECTION LOW ALARM (WHITE) 12

J3-1

J3-2

J3-3

J3-4

J3-5
J3
HIGH ALARM (YELLOW) 13

CALIBRATE

24 VDC –
SHIELD

24 VDC +
4-20 mA
Output Loop
Connector
HIGH ALARM COM J4-1
P1-3 4-20 mA +
HIGH ALARM NC J4-2

P1-2 4-20 mA – HIGH ALARM NO J4-3

AUX ALARM COM J4-4

Relay Connector
P1-1 SHIELD
AUX ALARM NC J4-5
P1
AUX ALARM NO J4-6

LOW ALARM COM J4-7

J2
LOW ALARM NC J4-8
J2-3 COM
LOW ALARM NO J4-9
J2-2 RS485 A FAULT COM J4-10

FAULT NC J4-11
J2-1 RS485 B
FAULT NO J4-12

24 VDC –
24 VDC –

24 VDC +
24 VDC +
MODBUS

SHIELD

SHIELD
J4
NOTE 1 INTERNAL JUMPER REQUIRED FOR Connector
NON-ISOLATED CURRENT OUTPUT
(SINGLE POWER SUPPLY).

P2-6

P2-5

P2-4

P2-3

P2-2

P2-1
P2

NOTE 2 UD10 HOUSING MUST BE ELECTRICALLY

CONNECTED TO EARTH GROUND. Power Supply Connector

C2404

Model PIRECL Wired Directly to UD10

ORIENTATION
It is highly recommended that the PIRECL be installed in the
horizontal position. The detector is not position-sensitive in terms
of its ability to detect gas. However, the weather baffle assembly
provides superior performance when the PIRECL is installed with
the baffle in a horizontal position.

CORRECT INCORRECT

7.4 I-2 95-8661

CALIBRATION To initiate calibration from the PIRECL while monitoring calibration
using the UD10 display:
To initiate calibration of the PIRECL from the UD10 Display:
1. Using the magnet, activate the magnetic calibration switch on
1. Using the magnet to activate the switches on the UD10 the PIRECL detector. See Figure below. The LED turns from
display, navigate to the “Calibration” menu. green to red.

Main Menu 2. The UD10 will display “Waiting for Zero” on the main display
Process Vars screen, with a solid red LED on the PIRECL housing illuminated.
Display Status
Device Cal
Device Status
Calibration
Display Setup
Cal Gas Con
Execute
3. The UD10 will then display “Waiting for Gas” on the screen,
Cal Gas Type
Device Setup
Calibration Abort while the LED on the PIRECL is flashing red.
Device Cal
Date
Display Test
Device Test 4. Apply calibration gas to the PIRECL detector.
Language

5. The UD10 will display “Waiting for Span” on the screen, while a
red flashing LED on the PIRECL housing is illuminated.
2. Activate “Execute” (Enter/Select) to start calibration.
6. When the UD10 displays “Remove Cal Gas” on the screen and
3. The UD10 will display “Waiting for Zero” on the main display the LED on the PIRECL housing is off, remove the calibration
screen, with a solid red LED on the PIRECL housing illuminated. gas.

4. The UD10 will then display “Waiting for Gas” on the screen, 7. After successful calibration, the UD10 automatically returns to
while the LED on the PIRECL is flashing red. the normal mode with the green LED illuminated on the PIRECL.

5. Apply calibration gas to the PIRECL

6. The UD10 will display “Waiting for Span” on the screen, while a
red flashing LED on the PIRECL housing is illuminated.

7. When the UD10 displays “Remove Cal Gas” on the screen and MULTICOLOR LED

the LED on the PIRECL housing is off, remove the calibration

gas. HART COMMUNICATION PORT
(COVER INSTALLED)

8. After successful calibration, the UD10 automatically returns

to the normal display with the green LED illuminated on the PLACE CALIBRATION MAGNET
PIRECL housing. HERE TO ACTIVATE INTERNAL
REED SWITCH

CALIBRATION MAGNET

UD10 mA Output During Calibration

(UD10 with PIRECL)
Replicate B2435 CALIBRATION NOZZLE
UD10 Display Reading Standard Mode
Mode

Waiting for Zero 3.8 2.2 Model PIRECL Gas Detector

Waiting for Gas 3.8 2.0

Waiting for Span 3.8 2.0

Remove Cal Gas 3.8 1.8

Back to Normal 4.0 4.0

7.4 I-3 95-8661

MENU STRUCTURE

UD10 with Model PIRECL

Refer to the following menu when using the UD10’s LCD display
and internal magnetic switches.

When connecting a HART Communicator to the UD10’s 4-20 mA

output, refer to the “UD10 HART Handheld” menu in Appendix F.

MENU HELP
Status menus only allow the user to view the data. The
Setup menus allow the user to both view and edit the
data.

7.4 I-4 95-8661

 APPENDIX J

UD10 with OPEN PATH ECLIPSE MODEL OPECL

NOTE
For complete information regarding the OPECL Gas Detector, refer to instruction manual 95-8556.

WIRING

UD10 with PIRECL/OPECL/Model 505/NTMOS

4000

3500

3000
AWG
Distance in ft.

2500 Wire Size

2000 12
14
1500 16
1000
18

500

0
18 19 20 21 22 23 24 25 26 27 28 29 30
Power Supply Voltage

Notes: Maximum recommended cable length from power source to UD10 is 2000 feet.
Maximum recommended cable length from UD10 to detector/STB termination box is 2000 feet.

7.4 J-1 95-8661

 MODEL OPECL
BLACK
24 VDC – 1
RED
24 VDC + 2
CALIBRATE 3
24 VDC – 4
24 VDC + 5 1
4-20 MA + 6
WHITE
4-20 MA – 7
UD10 DISPLAY UNIT
RS-485 B 8
RS-485 A 9
Sensor Connector
10

J3-1

J3-2

J3-3

J3-4

J3-5
J3
11
NO USER CONNECTION

CALIBRATE

24 VDC –
SHIELD

24 VDC +
4-20 mA
Output Loop
12
Connector
HIGH ALARM COM J4-1
13 P1-3 4-20 mA +
HIGH ALARM NC J4-2

P1-2 4-20 mA – HIGH ALARM NO J4-3

AUX ALARM COM J4-4

Relay Connector
P1-1 SHIELD
AUX ALARM NC J4-5
P1
AUX ALARM NO J4-6

LOW ALARM COM J4-7

J2
LOW ALARM NC J4-8
J2-3 COM
LOW ALARM NO J4-9
J2-2 RS485 A FAULT COM J4-10

FAULT NC J4-11
J2-1 RS485 B
FAULT NO J4-12

24 VDC –
24 VDC –

24 VDC +
24 VDC +
MODBUS

SHIELD

SHIELD
J4
Connector

NOTE 1 INTERNAL JUMPER REQUIRED FOR

P2-6

P2-5

P2-4

P2-3

P2-2

P2-1
P2
NON-ISOLATED CURRENT OUTPUT
(SINGLE POWER SUPPLY).
Power Supply Connector
NOTE 2 UD10 HOUSING MUST BE ELECTRICALLY
CONNECTED TO EARTH GROUND. C2405

Model OPECL Wired Directly to UD10

7.4 J-2 95-8661

ORIENTATION CALIBRATION
OPECL modules must be affixed to a solid, non-vibrating structure To initiate zero calibration of the OPECL from the UD10 Display:
capable of supporting a minimum of 100 lbs (46 kg), located within
the system’s rated separation distance. See examples below. 1. Using the magnet to activate the switches on the UD10 display,
navigate to the “Zero Calibration” menu.
In all cases, the maximum movement of the supporting structure
under all anticipated operating conditions must be no more than Main Menu
±0.25 degrees. When using a vertical post, the post should be Process Vars
Display Status Device Cal
absolutely stable and without vibration. Generally, when the post Device Status Cal Gas Conc
is set into the ground, the portion below grade should be set in Display Setup Cal Gas Type
Zero Calibration
Execute
concrete at least 1 meter deep. Device Setup Zero Calibration
Abort
Device Cal Span Cal Factor
Display Test Cal Date
Device Test
Language

2. Activate “Execute” (Enter/Select) to start calibration.

3. The UD10 will display “Waiting for Zero” on the main display
screen, with a solid red LED on the OPECL housing illuminated.

4. After the calibration is successfully completed, the UD10

automatically returns to the normal display with the green LED
illuminated on the OPECL housing.

UD10 mA Output During Calibration

(UD10 with OPECL)
Replicate
UD10 Display Reading Standard Mode
Mode

Waiting for Zero 3.8 2.2

Back to Normal 4.0 4.0

A2306

7.4 J-3 95-8661

To initiate zero calibration from the OPECL: OPECL TRANSMITTER LAMP FAULT CONDITION
1. Using the magnet, activate the magnetic calibration switch on If the OPECL system experiences a Transmitter (Tx) Lamp Fault
the OPECL receiver. See Figure below. The green LED will condition, the UD10 display will not indicate a fault condition and
turn red. its output will remain at 4 mA. The OPECL system is still fully
functional and able to detect gas. If a gas alarm condition should
2. The UD10 will display “Waiting for Zero” on the main display occur, the alarm condition will override the Tx Lamp Fault condition.
screen, with a solid red LED on the OPECL housing illuminated.
The OPECL system indicates a fault condition by amber indicator
3. After the calibration is successfully completed, the UD10 LEDs on both the transmitter and the receiver.
automatically returns to the normal display with the green LED
illuminated on the OPECL housing. To verify an OPECL Tx Lamp Fault condition, within the Menu
Structure of the UD10 Display navigate to the device “Fault/Status”
menu:

The Fault status will indicate Y (Yes). Click on “Fault” and the Fault
menu will identify the fault as a “Lamp Fault.”

Main Menu
PLACE CALIBRATION MAGNET Process Vars
HERE TO ACTIVATE INTERNAL
REED SWITCH Display Status Device Status
Fault/Status
Device Status General Info
Op Mode
Display Setup Fault/Status
Cal State
Device Setup Device Info
Fault Y
Device Cal Sensor Info
Status
Display Test History
Device Test
Language
A2349

For complete information regarding OPECL fault indications and

Location of Receiver’s Internal Magnetic Switch operation of the OPECL transmitter lamps, refer to the OPECL
instruction manual, number 95‑8556.

MENU STRUCTURE

UD10 with Open Patch Eclipse Model OPECL

Refer to the following menu when using the UD10’s LCD display
and internal magnetic switches.

When connecting a HART Communicator to the UD10’s 4-20 mA

output, refer to the “UD10 HART Handheld” menu in Appendix F.

MENU HELP
Status menus only allow the user to view the data. The
Setup menus allow the user to both view and edit the
data.

7.4 J-4 95-8661

 APPENDIX K

UD10 with NTMOS H2S DETECTOR

NOTE
For complete information regarding the NTMOS Gas Detector, refer to instruction manual 95-8604.

WIRING

UD10 with PIRECL/OPECL/Model 505/NTMOS

4000

3500

3000
AWG
Distance in ft.

2500 Wire Size

2000 12
14
1500 16
1000
18

500

0
18 19 20 21 22 23 24 25 26 27 28 29 30
Power Supply Voltage

Notes: Maximum recommended cable length from power source to UD10 is 2000 feet.
Maximum recommended cable length from UD10 to detector/STB termination box is 2000 feet.

INSTALLATION NOTES Proper Termination of Orange and Grey Wires

The orange and grey wires on the NTMOS detector are for
NOTE
factory use only. Proper field termination of these wires can be
Never use silicone grease with the NTMOS detector.
accomplished in any of the following ways:
NOTE • – If wiring to optional NTMOS Connector Board, use the
A junction box spacer or standoff may be used to terminals provided (grey to COM 1 & orange to COM 2).
increase the distance between the device and the • – If codes allow, they can be taped off and left unconnected.
mounting surface, thereby facilitating installation and
• – Connect both wires to the “Shield” terminal (J3‑1).
use of the ampoule calibrator.
• – Connect both wires to Power Supply Minus (24 Vdc –).
NOTE • – Connect to unused terminals in the STB Sensor
For non-HART applications, the NTMOS detector can Termination Box.
be wired to the Sensor Connector terminals (J3) on the
UD10 module. If HART communication will be used, the
NTMOS detector must be wired to the optional NTMOS
Connector Board, located on the inside bottom of the
UD10 housing. Refer to the appropriate wiring diagram.

7.4 K-1 95-8661

 ORANGE
SEE NOTE 1
GREY
YELLOW
BLACK
WHITE
RED

UD10 Sensor Connector

DISPLAY UNIT

J3-1

J3-2

J3-3

J3-4

J3-5
J3

CALIBRATE

24 VDC –
SHIELD

24 VDC +
4-20 mA
Output Loop
Connector
HIGH ALARM COM J4-1
P1-3 4-20 mA +
HIGH ALARM NC J4-2

P1-2 4-20 mA – HIGH ALARM NO J4-3

AUX ALARM COM J4-4

Relay Connector
P1-1 SHIELD
AUX ALARM NC J4-5
P1
AUX ALARM NO J4-6

J2
LOW ALARM COM J4-7 NTMOS
LOW ALARM NC J4-8 DETECTOR
J2-3 COM
LOW ALARM NO J4-9
J2-2 RS485 A FAULT COM J4-10

FAULT NC J4-11
J2-1 RS.485 B
FAULT NO J4-12
24 VDC –
24 VDC –

24 VDC +
24 VDC +

MODBUS
SHIELD

SHIELD
J4
Connector

NOTE 1 GREY AND ORANGE WIRES FOR FACTORY USE ONLY.

P2-6

P2-5

P2-4

P2-3

P2-2

P2-1

P2
NOTE 2 UD10 HOUSING MUST BE ELECTRICALLY
Power Supply Connector CONNECTED TO EARTH GROUND.

F2434

NTMOS Detector Wired Directly to UD10 (Non-HART Applications Only)

STB TERMINATION BOX

UD10 Sensor Connector

DISPLAY UNIT
J3-1

J3-2

J3-3

J3-4

J3-5

J3
CALIBRATE

24 VDC –
SHIELD

24 VDC +
4-20 mA

Output Loop
Connector
HIGH ALARM COM J4-1
P1-3 4-20 mA +
HIGH ALARM NC J4-2

P1-2 4-20 mA – HIGH ALARM NO J4-3

AUX ALARM COM J4-4

Relay Connector

P1-1 SHIELD
AUX ALARM NC J4-5
P1
AUX ALARM NO J4-6

LOW ALARM COM J4-7

J2
LOW ALARM NC J4-8
J2-3 COM
LOW ALARM NO J4-9
ORANGE
WHITE
RED

YELLOW
BLACK

GREY

J2-2 RS485 A FAULT COM J4-10

FAULT NC J4-11
J2-1 RS.485 B
FAULT NO J4-12
NTMOS
H2S DETECTOR
24 VDC –
24 VDC –

24 VDC +
24 VDC +

MODBUS
SHIELD

SHIELD

J4
Connector
P2-6

P2-5

P2-4

P2-3

P2-2

P2-1

P2
NOTE 1 GREY AND ORANGE WIRES FOR FACTORY USE ONLY.
Power Supply Connector
NOTE 2 HOUSINGS MUST BE ELECTRICALLY CONNECTED TO
EARTH GROUND.
C2482

UD10 Wired to NTMOS Detector with STB Termination Box (Non-HART Applications Only)

7.4 K-2 95-8661

 UD10
DISPLAY UNIT CONNECT TO UD10 MODULE’S J3 WITH
FACTORY INSTALLED CABLE

J2

CAL
RTN
SHIELD

24V
4/20

ORANGE
WHITE
RED

YELLOW
GREY
BLACK
NTMOS
H2S DETECTOR
COM 2 (ORANGE)

CAL (YELLOW)
COM 1 (GRAY)

RTN (BLACK)

4/20 (WHITE)

24V (RED)

P1
NTMOS CONNECTOR BOARD

NOTE 1 REMOVE UD10 ELECTRONIC MODULE FOR ACCESS

TO NTMOS CONNECTOR BOARD (NO TOOLS REQUIRED).

NOTE 2 GREY AND ORANGE WIRES FOR FACTORY USE ONLY.

B2493
NOTE 3 HOUSINGS MUST BE ELECTRICALLY CONNECTED TO
EARTH GROUND.

NTMOS Detector Wired Directly to UD10 via the NTMOS Connector Board
(NTMOS Connector Board is Required for HART Communication)

STB TERMINATION BOX

UD10
DISPLAY UNIT CONNECT TO UD10 MODULE’S J3 WITH
FACTORY INSTALLED CABLE

J2
CAL
RTN
SHIELD

24V
4/20
COM 2 (ORANGE)

CAL (YELLOW)
COM 1 (GRAY)

RTN (BLACK)

4/20 (WHITE)

24V (RED)

ORANGE
WHITE
RED

YELLOW
BLACK

GREY

P1
NTMOS
NTMOS CONNECTOR BOARD H2S DETECTOR

B2494

NOTE 1 REMOVE UD10 ELECTRONIC MODULE FOR ACCESS

TO NTMOS CONNECTOR BOARD (NO TOOLS REQUIRED).

NOTE 2 GREY AND ORANGE WIRES FOR FACTORY USE ONLY.

NOTE 3 HOUSINGS MUST BE ELECTRICALLY CONNECTED TO

EARTH GROUND.

UD10 with NTMOS Connector Board Wired to NTMOS Detector with STB Termination Box
(NTMOS Connector Board is Required for HART Communication)

7.4 K-3 95-8661

ORIENTATION 2. Humidification Tube Calibration Kit (p/n 010272‑001) with
bottled 50 ppm H2S in air (p/n 227117-014). For complete
The UD10/NTMOS assembly must be mounted with the detector information regarding use of the Humidification Tube
pointing down (see photo below). Calibration Kit, refer to instruction manual number 95-
8648.

NOTE
When calibrating with bottled 50 ppm H2S in air, the
humidification tube MUST be used.

CALIBRATION

Calibration Notes
The NTMOS detector must be calibrated using 50 ppm H2S in air
(never use H2S in nitrogen).

Det-Tronics provides two acceptable sources of 50 ppm H2S FLEXVU UD10

calibration gas for use with NTMOS detectors.

WARNING
The use of any other H2S calibration mixture will produce NTMOS H2S DETECTOR

inaccurate calibration results, possibly resulting in a

dangerous condition if the detector under-reports the
level of H2S. AMPOULE CALIBRATOR

1. 50 ppm Ampoule Calibration Kit (p/n 007098-005) with 50 ppm

ampoules (p/n 225741-001)
THUMB SCREW

To operate the Ampoule Calibrator:

a Remove the cover and insert a 50 ppm H2S ampoule into
the ampoule holder inside the calibrator. Tighten the thumb MIXING FAN LEVER
screw until snug.
b Place the cover back on the calibrator and connect it snugly
to the NTMOS detector.
c Tighten the thumb screw until the ampoule breaks.
Ampoule Calibrator Attached to NTMOS Detector
d Rotate the mixing fan by slowly turning the mixing fan lever.

7.4 K-4 95-8661

 5. Apply calibration gas to the detector.

6. With 50 ppm H2S applied to the detector, the UD10 display will
continue to show “Waiting for Span” while the span calibration is
being performed.

7. When the UD10 Display shows “Remove Cal Gas” the

calibration is complete. Remove calibration gas from the
detector.

8. When the gas level falls below the lowest alarm setpoint, the
UD10 automatically exits the Calibrate mode and returns to
normal operating mode.

MENU STRUCTURE

UD10 with NTMOS H2S Detector

Refer to the following menu when using the UD10’s LCD display
and internal magnetic switches.

When connecting a HART Communicator to the UD10’s 4-20 mA

output, refer to the “UD10 HART Handheld” menu in Appendix F.
Humidification Tube Calibration Kit Attached to NTMOS Detector
MENU HELP
Status menus only allow the user to view the data. The
Calibration Procedure Setup menus allow the user to both view and edit the
data.
To calibrate the NTMOS detector with the FlexVu UD10 Display:

1. Touch the magnet to the ENTER/SELECT button to display

the Main Menu. Follow the illustration below to navigate to the
“Calibrate” menu.

Main Menu
Process Vars
Display Status
Device Status Device Cal Calibration
Display Setup Calibration Execute
Device Setup Cal Gas Conc
Device Cal
Display Test UD10 mA Output During Calibration
Language
(UD10 with NTMOS)
Replicate
UD10 Display Reading Standard Mode
2. Activate “Execute” (Enter/Select) to begin the zero calibration. Mode

Waiting for Zero 3.8 2.2

3. The UD10 will display “Waiting for Zero” on the main display
screen. Waiting for Gas 3.8 3.8

Waiting for Span 3.8 3.8

4. When zero calibration is complete (approximately one minute),
the UD10 will display “Waiting for Span” on the main display Remove Cal Gas 3.8 3.8
screen.
Back to Normal 4.0 4.0

7.4 K-5 95-8661

 APPENDIX L

UD10 with C706X TOXIC GAS SENSOR

NOTE
For complete information regarding the C7064E H2S Gas Sensor, refer to instruction manual 95-8396.
For the C7067E Chlorine Gas Sensor, refer to instruction manual 95-8439.

WIRING

UD10 with C706X

4000

3500

3000
AWG
Distance in ft.

2500 Wire Size

2000 12
14
1500 16
1000
18

500

0
18 19 20 21 22 23 24 25 26 27 28 29 30
Power Supply Voltage

Notes: Maximum recommended cable length from power source to UD10 is 2000 feet.
Maximum recommended cable length from UD10 to sensor/STB termination box is 2000 feet.

Model C7065E oxygen sensor is not supported.

7.4 L-1 95-8661

 BLACK

RED

GREEN
UD10 Sensor Connector
DISPLAY UNIT

J3-1

J3-2

J3-3

J3-4

J3-5
J3

CALIBRATE

24 VDC –
SHIELD

24 VDC +
4-20 mA
Output Loop SEE NOTE 1
Connector
HIGH ALARM COM J4-1
P1-3 4-20 mA +
HIGH ALARM NC J4-2

P1-2 4-20 mA – HIGH ALARM NO J4-3

AUX ALARM COM J4-4

Relay Connector
P1-1 SHIELD
AUX ALARM NC J4-5
C706X SENSOR
P1
AUX ALARM NO J4-6

LOW ALARM COM J4-7

J2
LOW ALARM NC J4-8
J2-3 COM
LOW ALARM NO J4-9
J2-2 RS485 A FAULT COM J4-10

FAULT NC J4-11
J2-1 RS485 B
FAULT NO J4-12

24 VDC –
24 VDC –

24 VDC +
24 VDC +
MODBUS

SHIELD

SHIELD
J4
Connector

NOTE 1 CONNECT THE GREEN SENSOR LEAD

P2-6

P2-5

P2-4

P2-3

P2-2

P2-1
P2
TO THE CHASSIS GROUND LUG ON THE
INSIDE BOTTOM OF THE DISPLAY ENCLOSURE.
Power Supply Connector
NOTE 2 UD10 HOUSING MUST BE ELECTRICALLY
C2422 CONNECTED TO EARTH GROUND.

C706X Sensor Wired Directly to UD10

BLACK
SEE NOTE 1
RED

UD10 DISPLAY UNIT

Sensor Connector SENSOR
TERMINATION
J3-1

J3-2

J3-3

J3-4

J3-5

J3 BOX
CALIBRATE

24 VDC –
SHIELD

24 VDC +
4-20 mA

Output Loop
Connector
HIGH ALARM COM J4-1 +
P1-3 4-20 mA + –
HIGH ALARM NC J4-2 G
D
HIGH ALARM NO J4-3 RE
P1-2 4-20 mA – + BLK
AUX ALARM COM J4-4 –
Relay Connector

P1-1 SHIELD G
AUX ALARM NC J4-5
P1
AUX ALARM NO J4-6

LOW ALARM COM J4-7

J2
LOW ALARM NC J4-8 GROUND LUG*
J2-3 COM
LOW ALARM NO J4-9
J2-2 RS485 A FAULT COM J4-10 * CONNECT THE GREEN
SENSOR LEAD TO THE
FAULT NC J4-11
J2-1 RS485 B CHASSIS GROUND LUG
FAULT NO J4-12
IN THE INSIDE BOTTOM
24 VDC –
24 VDC –

24 VDC +
24 VDC +

MODBUS
SHIELD

SHIELD

J4 OF THE JUNCTION BOX.

Connector

C706X SENSOR
P2-6

P2-5

P2-4

P2-3

P2-2

P2-1

P2

Power Supply Connector

NOTE 1 GROUND THE SHIELD AT THE DISPLAY
UNIT END ONLY.

NOTE 2 HOUSINGS MUST BE ELECTRICALLY

C2423
CONNECTED TO EARTH GROUND.

UD10 Wired to C706X Sensor with STB Termination Box

7.4 L-2 95-8661

INSTALLATION INSTALLATION AND WIRING PROCEDURE
1. Determine the best mounting locations for the detectors.
WIRING REQUIREMENTS
2. Install the C706X sensor within the proper opening in the UD10
The simplest installation involves installing the sensor into one
or STB junction box. Mount the UD10/C706X with the sensor
of the UD10 openings and connecting the wiring directly to the
oriented vertically and the opening pointing down. The UD10
UD10. If the installation requires separation of the C706X sensor
should be electrically connected to earth ground.
and the UD10 Display, the sensor can be connected to a STB
sensor termination box, and the C706X/STB combination wired
NOTE
to the UD10. In this case, shielded cable is recommended to
The electrochemical sensor cell does not need to be
help protect against interference caused be extraneous electrical
installed within the C706X housing while installing and
“noise.” In applications where the cable is installed in conduit, the
wiring the detector/junction box. It is recommended to
conduit should not be used for wiring to other electrical equipment
keep the sensor in the manufacturer’s sealed shipping
whenever possible. If other equipment power wiring is run in
bag in a cool storage environment until actual power-up
the same conduit, the cabling must be shielded. The maximum
and calibration commissioning is performed. This will
allowable distance between the C706X sensor and UD10 Display
ensure that the sensor will provide maximum longevity.
Unit is limited by the resistance of the cabling used.
3. Terminate all three C706X conductors at the proper terminals.
Refer to the appropriate illustration for details.

4. Double check that all wiring is the proper size and type and has
been installed correctly. Check operating voltage at the C706X
sensor and the UD10 Display Unit.

NOTE
Do not apply power to the system with the junction box
cover removed unless the area has been de-classified.

5. Proceed with startup and calibration.

7.4 L-3 95-8661

CALIBRATION MENU STRUCTURE
To initiate calibration of the C706X sensor from the UD10 Display:
UD10 with C706X Series Sensor
1. Using the magnet to activate the switches on the UD10 display, Refer to the following menu when using the UD10’s LCD display
navigate to the “Calibrate” menu. and internal magnetic switches.

2. Activate “Execute” (Enter/Select) to start calibration. When connecting a HART Communicator to the UD10’s 4-20 mA
Main Menu
output, refer to the “UD10 HART Handheld” menu in Appendix F.
Process Vars
Display Status MENU HELP
Device Status
Display Setup
Device Cal Calibration Status menus only allow the user to view the data. The
Calibration
Device Setup Cal Gas Conc
Execute
Setup menus allow the user to both view and edit the
Device Cal data.
Display Test
Language

3. The UD10 will display “Waiting for Zero” on the main display
screen as it performs zero calibration.

4. When zero calibration is complete, the UD10 will display

“Waiting for Gas” on the screen.

5. Apply calibration gas to the sensor.

6. The UD10 will display “Waiting for Span” on the screen while
the span calibration is being performed.

7. When the UD10 displays “Remove Cal Gas” on the screen,

remove the calibration gas from the sensor.

8. When calibration is complete, “Remove Cal Gas” is no longer

displayed on the screen and the UD10 automatically returns to
the normal operating mode.

7.4 L-4 95-8661

 APPENDIX M

UD10 with MODEL CGS COMBUSTIBLE GAS SENSOR

WIRING

UD10 with CGS Sensor

2000

1750

1500
AWG
Distance in ft.

1250 Wire Size

1000 12
14
750 16
500
18

250

0
18 19 20 21 22 23 24 25 26 27 28 29 30
Power Supply Voltage

Notes: Maximum recommended cable length from power source to UD10 is 2000 feet.
Maximum recommended cable length from UD10 to CGS sensor is 500 feet
(using 16 AWG, 1.5 mm2 cable minimum).

IMPORTANT NOTES CAUTION

NOTE The sintered metal flame arrestor is an integral part of
The UD10 with CGS Interface option and CGS sensor the combustible gas sensor. DO NOT operate the gas
is certified as a “Gas Detector” and performance detector if the flame arrestor is damaged or missing,
approved to standards FM6310/6320, ATEX 60079-29-1, since the exposed element is a potential ignition source.
and IEC 60079-29-1.
CAUTION
NOTE Silicone based lubricants must never be used on or
Only Constant Current type CGS sensors may be used near the CGS sensor, since this can result in irreversible
with the UD10. damage to the sensing element.

NOTE
CAUTION
When the auxiliary relay is set for latching and the gas
When used as a stand alone device, the high alarm must
level goes above the auxiliary alarm threshold, the 4-20
always be programmed for latching operation. When
mA output will latch to the highest gas level detected
used in conjunction with a Control Unit and configured
until it is reset. When CGS mode is selected, the default
for a non-latching high alarm, the control unit must
setting for the auxiliary relay is a threshold of 90% full
always latch and require a deliberate manual action to
scale, with latching output.
clear a high gas alarm.

7.4 M-1 95-8661

 SET ALL SWITCHES
TO THE “ON” POSITION
WITH THE EXCEPTION OF SWITCH 7
WHICH SHOULD BE “OFF”

CGS INTERFACE BOARD

LOCATED INSIDE SW
1
TERMINAL J11 FOR FACTORY USE ONLY
UD10 HOUSING
J3

SHIELD

CALIBRATE

24 VDC –

4-20 mA

24 VDC +
J11

CONNECT TO UD10 MODULE VIA

CABLE (FACTORY INSTALLED)

CONNECT CGS SENSOR

TO TERMINAL J10

2
BL
CGS INTERFACE BOARD

1
W
HT
J10

RE
D
P10

NOTE 1 REMOVE UD10 ELECTRONICS MODULE FOR ACCESS

CGS TO CGS INTERFACE BOARD (NO TOOLS REQUIRED).
SENSOR
NOTE 2 HOUSINGS MUST BE ELECTRICALLY CONNECTED TO
B2507 EARTH GROUND.

CGS Sensor Wired Directly to UD10

SET ALL SWITCHES

TO THE “ON” POSITION
WITH THE EXCEPTION OF SWITCH 7
WHICH SHOULD BE “OFF”

CGS INTERFACE BOARD SW

1
LOCATED INSIDE CONNECT SHIELD TO EARTH GROUND
UD10 HOUSING TERMINAL WITHIN UD10 HOUSING
J3
J11
SHIELD

CALIBRATE

24 VDC –

4-20 mA

24 VDC +

CONNECT TO UD10 MODULE VIA

CABLE (FACTORY INSTALLED)
MODEL STB1
SENSOR TERMINATION BOX
TERMINAL J11 FOR FACTORY USE ONLY
BL
K
3

W
HT

CGS INTERFACE BOARD

2

RE
D
1

J10

P10

BLK
WHT
RED

CONNECT KEYED SENSOR

PLUG TO PIN CONNECTOR NOTE 1 REMOVE UD10 ELECTRONICS MODULE FOR ACCESS
TO CGS INTERFACE BOARD (NO TOOLS REQUIRED).

NOTE 2 HOUSINGS MUST BE ELECTRICALLY CONNECTED TO

EARTH GROUND.

CGS
B2508 SENSOR

UD10 Wired to CGS Sensor with STB Termination Box

7.4 M-2 95-8661

INSTALLATION CALIBRATION
NOTE
WIRING REQUIREMENTS For maximum calibration accuracy, allow a new sensor
The simplest installation involves installing the sensor into one of to operate under power for several hours (minimum
the UD10 openings and connecting the wiring directly to the CGS one hour) to ensure a stable output before performing
interface board. calibration. For the highest degree of accuracy, perform
a second calibration after 24 hours.
Sensor Separation To initiate calibration of the CGS sensor from the UD10 Display:
If the installation requires separation of the CGS sensor and the
1. Using the magnet to activate the switches on the UD10 display,
UD10 Display, the sensor can be connected to a model STB1
navigate to the “Calibrate” menu.
sensor termination box, and the CGS/STB combination wired to the
UD10.
Main Menu
Process Vars
In this case, shielded cable is recommended to help protect against Display Status Device Cal
interference caused by extraneous electrical “noise.” Device Status Calibration
Calibration
Display Setup Cal Gas Conc
Execute
Device Setup Cal Gas
In applications where the cable is installed in conduit, the conduit Device Cal K Factor
should not be used for wiring to other electrical equipment whenever Display Test
possible. If other equipment power wiring is run in the same conduit, Language

the cabling must be shielded.

2. Activate “Execute” (Enter/Select) to start calibration.
The maximum allowable distance between the CGS sensor and
UD10 Display Unit is 500 feet, with connecting cable 16 AWG, 1.5 3. The UD10 will display “Waiting for Zero” on the main display
mm2 minimum. screen as it performs zero calibration.

4. When zero calibration is complete, the UD10 will display

INSTALLATION AND WIRING PROCEDURE “Waiting for Gas” on the screen.
1. Determine the best mounting locations for the detectors.
5. Apply calibration gas to the sensor.
2. Install the CGS sensor within the proper opening in the UD10
6. The UD10 will display “Waiting for Span” on the screen while
or STB junction box. Mount the device with the sensor oriented
the span calibration is being performed.
vertically and the opening pointing down. All junction boxes
should be electrically connected to earth ground. 7. When the UD10 shows “Remove Cal Gas” on the screen,
remove the calibration gas from the sensor.
3. Terminate all wiring at the proper terminals. Refer to the
appropriate illustration for details. 8. The UD10 automatically exits the Calibrate mode and returns
to normal operating mode upon completion of a successful
4. Double check that all wiring is the proper size and type and has calibration.
been installed correctly. Check for correct operating voltage at
the device.

NOTE
Do not apply power to the system with the junction box UD10 mA Output During Calibration
cover removed unless the area has been de‑classified. (UD10 with CGS)
Replicate
5. Proceed with startup and calibration. UD10 Display Reading Standard Mode
Mode

Apply Zero Gas 3.8 2.2

Waiting for Gas 3.8 3.8

Waiting for Span 3.8 3.8

Remove Cal Gas 3.8 3.8

Back to Normal 4.0 4.0

7.4 M-3 95-8661

Determining Sensor Life Remaining K FACTOR
At the time of calibration, the UD10 logs the sensor mV signal.
If the system will be detecting a gas/vapor other than the gas used
This value can be used for determining the approximate sensor life
in the actual calibration process, a conversion K-Factor must be
remaining.
used. The K-Factor can be entered prior to calibration by navigating
to the “Device Option” menu, then selecting “K-Factor.” Enter the
To view all the recorded mV signal values for the sensor, from the
desired K-Factor and activate the “Enter” button. The new K-Factor
Main Menu, navigate to:
will be applied when the sensor is calibrated.
Device Status > Calibration Log > Span.

To view the mV signal from the most recent calibration only, from Main Menu
the Main Menu, navigate to: Process Vars
Device Status > Device Info > Response. Display Status
Device Status Device Option
Device Setup
A typical new sensor reads between 45 and 55 mV. Display Setup
Device Setup
Device Option
Gas Name
K-Factor
Device Cal
• At 21-55 mV, “Cal OK” is recorded in the Cal Log, along with the Display Test
Span value. Language

• At 15-20 mV, “Cal OK” is recorded in the Cal Log, along with the
Span value. In addition, “Weak Sensor” is shown on the UD10
display for about 20 seconds. After 20 seconds, the “Weak The UD10 communicates the K-Factor to the CGS Interface Board
Sensor” message is no longer seen, but a “Weak Sensor” status during the calibration process, where the proper correction is made
is recorded (Device Status > Fault/Status > Status). to ensure accurate calibration.
• At 14 mV or less, “Weak Sensor” is shown on the UD10 display The actual effect of the K-Factor can be observed as the span
for about 20 seconds, then a Cal Fault is shown. The Cal Log portion of the calibration is completed. For example, suppose a
shows “Cal Fail” with a Span value of 0.00 mV. K-Factor of 0.865 has been programmed. When calibration is
performed, the UD10 will display 50% as span is accepted. It will
then apply the K-Factor, and the displayed value will change to
43.3% LFL.

For additional information regarding K-Factors, including a list

of K-Factors for many common gases, refer to technical bulletin
number 76-1017.

MENU STRUCTURE

UD10 with CGS Series Sensor

Refer to the following menu when using the UD10’s LCD display
and internal magnetic switches.

When connecting a HART Communicator to the UD10’s 4-20 mA

output, refer to the “UD10 HART Handheld” menu in Appendix F.

MENU HELP
Status menus only allow the user to view the data. The
Setup menus allow the user to both view and edit the
data.

7.4 M-4 95-8661

 APPENDIX N

UD10 with MODEL 505 TRANSMITTER / CGS SENSOR

NOTE
For complete information regarding the Model 505 Transmitter, refer to instruction manual 95-8472.

WIRING
UD10 with PIRECL/OPECL/Model 505
4000

3500

3000
AWG
Distance in ft.

2500 Wire Size

2000 12
14
1500 16
1000
18

500

0
18 19 20 21 22 23 24 25 26 27 28 29 30
Power Supply Voltage

Notes: Maximum recommended cable length from power source to UD10 is 2000 feet.
Maximum recommended cable length from UD10 to sensor/STB termination box is 2000 feet.

Sensor Connector
UD10
DISPLAY UNIT
J3-1

J3-2

J3-3

J3-4

J3-5

J3
CALIBRATE

24 VDC –
SHIELD

24 VDC +
4-20 mA

Output Loop
Connector
HIGH ALARM COM J4-1
P1-3 4-20 mA +
HIGH ALARM NC J4-2 MODEL 505 TRANSMITTER
P1-2 4-20 mA – HIGH ALARM NO J4-3

AUX ALARM COM J4-4

Relay Connector

SHIELD SIG
P1-1 –
AUX ALARM NC J4-5 +
P1
AUX ALARM NO J4-6

LOW ALARM COM J4-7

J2
LOW ALARM NC J4-8
J2-3 COM
LOW ALARM NO J4-9
J2-2 RS485 A FAULT COM J4-10 BLK
WHT
RED
FAULT NC J4-11 SEN
SOR
J2-1 RS485 B
FAULT NO J4-12
24 VDC –
24 VDC –

24 VDC +
24 VDC +

MODBUS
SHIELD

SHIELD

J4
Connector
P2-6

P2-5

P2-4

P2-3

P2-2

P2-1

P2

Power Supply Connector CGS NOTE UD10 HOUSING MUST BE ELECTRICALLY

SENSOR CONNECTED TO EARTH GROUND.
B2424

UD10 Wired to Model 505 Transmitter/CGS Sensor

7.4 N-1 95-8661

 Sensor Connector
UD10
DISPLAY UNIT

J3-1

J3-2

J3-3

J3-4

J3-5
J3

CALIBRATE

24 VDC –
SHIELD

24 VDC +
4-20 mA
Output Loop
Connector
HIGH ALARM COM J4-1
P1-3 4-20 mA +
HIGH ALARM NC J4-2 MODEL 505 TRANSMITTER
P1-2 4-20 mA – HIGH ALARM NO J4-3

AUX ALARM COM J4-4

Relay Connector
SHIELD SIG
P1-1 –
AUX ALARM NC J4-5 +
P1
AUX ALARM NO J4-6

LOW ALARM COM J4-7

J2
LOW ALARM NC J4-8
J2-3 COM
LOW ALARM NO J4-9
J2-2 RS485 A FAULT COM J4-10 BLK
WHT
RED
FAULT NC J4-11 SEN
SOR
J2-1 RS485 B
FAULT NO J4-12

24 VDC –
24 VDC –

24 VDC +
MODBUS 24 VDC +

SHIELD

SHIELD
J4
Connector
P2-6

P2-5

P2-4

P2-3

P2-2

P2-1
P2

Power Supply Connector

CONNECT KEYED SENSOR

PLUG TO PIN CONNECTOR
BLK
WHT
RED
NOTES
1. SHIELDED SENSOR WIRING CABLE REQUIRED.

2. GROUND SENSOR WIRE SHIELD AT TRANSMITTER END ONLY.

3. SHIELDS SHOULD BE STRIPPED BACK WITHIN JUNCTION BOXES.

4. P/N 102883-001 TERMINAL CONNECTOR REQUIRED FOR SENSOR CONNECTION

4. (PROVIDED WITH SENSOR TERMINATION BOX).
CGS
5. HOUSINGS MUST BE ELECTRICALLY CONNECTED TO EARTH GROUND. SENSOR
B2475

UD10 Wired to Model 505 Transmitter/CGS Sensor Using Sensor Separation Termination Box

INSTALLATION ORIENTATION
Refer to the Model 505 instruction manual number 95-8472 for The Model 505/CGS must be mounted with the CGS sensor
complete information regarding proper installation of the Model 505 opening pointing down.
with combustible gas sensor.

7.4 N-2 95-8661

CALIBRATION
NOTE ZERO/SPAN SWITCH
For maximum calibration accuracy, allow a new sensor SENSOR VOLTAGE ADJUST ZERO ADJUST

to operate under power for several hours (minimum SPAN ADJUST

one hour) to ensure a stable output before performing CAL/NORM SWITCH

CALIBRATE LED
calibration. For the highest degree of accuracy, perform 4 mA ADJUST TEST POINTS

a second calibration after 24 hours.

A1944

Model 505
The Model 505/CGS must be calibrated when the system is
commissioned as well as when the CGS sensor is replaced.
Calibration is performed at the Model 505 using the following
procedure. Calibration at the UD10 is not supported.

WARNING
Before removing the junction box cover, verify that no dangerous levels of gas are present.

Step Switch Position Operator Action

1. LED turns on.

CAL/NORM switch in the CAL
1 2. Connect a digital voltmeter to the transmitter test jacks.
position.
3. Set the meter range to 2 Vdc.

ZERO/SPAN switch in the ZERO 1. Adjust the ZERO potentiometer to read 0.000 Vdc on the
2
position. voltmeter. See Note 3 below.

1. Adjust the 4 mA potentiometer to read 0.167 Vdc on the voltmeter.

ZERO/SPAN switch in the SPAN 2. Apply the 50% LFL calibration gas to the sensor. When the
3
position. output has stabilized, adjust the SPAN potentiometer for a
reading of 0.500 on the voltmeter.

1. Sensitivity test. The meter must read greater than 0.015 Vdc.
ZERO/SPAN switch in the ZERO See Note 4 below.
4
position. 2. Remove the calibration gas.
3. When the meter reads 0.002 Vdc or less, remove the test probes.

1. The LED turns off.

CAL/NORM switch in NORM
5 2. The calibration is complete.
position.
3. Replace the junction box cover.

NOTES:

1. When the CAL/NORM switch is in the CAL position, the yellow LED turns on and the 4-20 mA output signal goes to 3.4 mA.

2. The voltmeter must be suitable for use in a hazardous location.

3. If the possibility of background gases exists, purge the sensor with clean air prior to the zero adjustment to assure accurate
calibration.

4. A typical sensitivity reading with 50% LFL gas applied to the sensor is 35 to 50 millivolts for a new sensor. Sensor replacement
is recommended when the sensitivity reading is less than 15 millivolts.

5. If a dust cover or splash shield is used, inspect it to be sure that it is not dirty or plugged. A plugged dust cover can restrict
the flow of gas to the sensing element, seriously reducing its effectiveness. For optimum performance, sensor covers/filters
should be replaced frequently to ensure that they are not degraded or plugged.

7.4 N-3 95-8661

MENU STRUCTURE

UD10 with Model 505 / CGS Sensor

Refer to the following menu when using the UD10’s LCD display
and internal magnetic switches.

When connecting a HART Communicator to the UD10’s 4-20 mA

output, refer to the “UD10 HART Handheld” menu in Appendix F.

MENU HELP
Status menus only allow the user to view the data. The
Setup menus allow the user to both view and edit the
data.

7.4 N-4 95-8661

 APPENDIX O

UD10 with GENERIC 4-20 mA SENSORS

NOTE
For complete information regarding installation, wiring, and calibration of the sensor, refer to the instruction manual
provided by the sensor manufacturer.

OPERATION ALARMS

The UD10 can be used with generic sensors that generate a The Low, High, and Auxiliary alarm levels are independently field
calibrated linear 4-20 mA signal, with or without HART. The UD10 adjustable. Alarm levels are set and displayed with the selected
allows the operator to select the upper and lower range values and measurement units. All alarm levels must be within the LRV to
unit of measurement. The UD10 then analyzes the 4-20 mA input URV range.
signal from the sensor and displays the value with the designated
measurement unit, and also controls the alarm outputs. ALARM LATCHING
Latching or non-latching function is independently selectable for
UPPER AND LOWER RANGE VALUES each alarm. The default setting is non‑latching. Latched alarms can
The upper range value (URV) and lower range value (LRV) are be reset with a “Reset Latched Alarms” command from the menu
selected using the magnetic tool and the UD10’s menu system system or a power cycle.
(Main Menu > Device Setup). The URV corresponds to the 20
mA signal while the LRV corresponds to 4 mA. The default values SENSOR CALIBRATION
are 0 for the LRV and 100 for the URV. When the generic detector
supports HART communication, the URV and LRV come from the The UD10 does not support generic sensor calibration. Generic
attached detector. sensors must be pre-calibrated following the procedure described
in the instruction manual provided by the sensor manufacturer.

MEASUREMENT UNIT TEXT

4-20 MA OUTPUT READING
The operator can select the appropriate measurement unit from a
pre-entered list: % (default), PPM, LFL, or PPB, or he can enter his While in Generic mode, the UD10 displays values below the 4 mA
own custom 4-character string. Measurement unit text is displayed level to allow the use of 0-20 mA sensors.
on the main screen with the process variable. When the generic
detector supports HART communication, the unit text comes from
the attached detector. MENU STRUCTURE

LOW FAULT THRESHOLD UD10 with Generic 4-20 mA Sensors

The operator can enter a low input fault threshold in the range of Refer to the following menus when using the UD10’s LCD display
0.5–4 mA (default is 3.5 mA). When the input signal is at or below and internal magnetic switches. Two different menus are provided
this point, an “Out of Range Low Fault” is annunciated. This feature to accommodate sensors with or without HART communication.
can be enabled/disabled as desired.
When connecting a HART Communicator to the UD10’s 4-20 mA
output, refer to the “UD10 HART Handheld” menu in Appendix F.
HIGH FAULT THRESHOLD
MENU HELP
The operator can enter a high input fault threshold in the range of
Status menus only allow the user to view the data. The
20–27 mA (default is 21 mA). When the input signal is at or above
Setup menus allow the user to both view and edit the
this point, an “Out of Range High Fault” is annunciated. This feature
data.
can be enabled/disabled as desired.

7.4 O-1 95-8661

 APPENDIX P

UD10 with FLEXSONIC ACOUSTIC GAS DETECTOR

NOTE
For complete information regarding the FlexSonic Acoustic Detector, refer to instruction manual 95-8657.

WIRING
UD10 with FlexSonic Acoustic
4000

3500

3000
AWG
Distance in ft.

2500 Wire Size

2000 12
14
1500 16
1000
18

500

0
18 19 20 21 22 23 24 25 26 27 28 29 30
Power Supply Voltage

Notes: Maximum recommended cable length from power source to UD10 is 2000 feet.
Maximum recommended cable length from UD10 to sensor is 2000 feet.

INSTALLATION NOTE
The ATX10 transmitter module is shipped with the SD
NOTE card installed in the memory module. A piece of tape has
Detector housings must be electrically connected to been installed to secure the card in place and prevent it
earth ground. A dedicated earth ground terminal is from becoming dislodged during shipping. The shipping
provided. tape should be removed prior to commissioning the
acoustic detector.
NOTE
The AC100 has an Intrinsic Safety (IS) Barrier. Proper
NEC/CEC IS grounded must be ensured.

NOTE
The detector must always be installed per local
installation codes.

NOTE
Use of a threaded adapter for connecting the AC100 to
the STB or ATX10 is prohibited.

7.4 P-1 95-8661

 ATX10
TRANSMITTER
INTERFACE
TO SOFTWARE BOARD
CONFIGURATOR

P3
-4
P3
-3

JU
P3

M
-2

PE
P3

N
D

R
-1

TO
A

G
N
D
+
A

C
VD
24 B J3

24

A
-1
VD ORANGE

m
C J3

20
24 +

–
-2

4-
VD GRAY

C
-4

VD
P1
C J3
SH – -3
RED

24

D
IEL

-3

L
J3

P1
D

IE
-4
BLACK

SH
-2
J3

P1
-5

-1
P1
SENSOR
POWER
AND OUTPUT GREEN
Sensor Connector
J3-1

J3-2

J3-3

J3-4

J3-5

J3
IS GROUND
CALIBRATE

24 VDC –
SHIELD

24 VDC +
4-20 mA

Output Loop
Connector
HIGH ALARM COM J4-1
P1-3 4-20 mA +
HIGH ALARM NC J4-2 UD10
HIGH ALARM NO J4-3
DISPLAY UNIT
P1-2 4-20 mA –
AUX ALARM COM J4-4
Relay Connector

P1-1 SHIELD
AUX ALARM NC J4-5
P1
AUX ALARM NO J4-6

J2
LOW ALARM COM J4-7 AC100
COM
LOW ALARM NC J4-8 ACOUSTIC
J2-3
LOW ALARM NO J4-9 SENSOR
J2-2 RS485 A FAULT COM J4-10

FAULT NC J4-11
J2-1 RS485 B
FAULT NO J4-12
24 VDC –
24 VDC –

24 VDC +
24 VDC +

MODBUS
SHIELD

SHIELD

J4
Connector
NOTES: DEVICE HOUSINGS MUST BE ELECTRICALLY CONNECTED TO EARTH GROUND.
P2-6

P2-5

P2-4

P2-3

P2-2

P2-1

P2
CONNECT THE GREEN WIRE FROM THE AC100 TO THE GROUND SCREW
Power Supply Connector INSIDE THE ATX10 HOUSING.

SHIELDED TWISTED PAIR IS RECOMMENDED FOR SIGNAL WIRING,

B2609 500 FEET MAXIMUM.

ATX10 Transmitter with AC100 Wired Directly to UD10

UD10 OPERATION amplitude of 139 dB.

• The amplitude of displayed bands is determined by taking
When used with the FlexSonic Acoustic Detector, the main UD10 the peak amplitude of the bands included within each of the
screen appears as shown in Figure 6-1. The selected alarm mode aggregated groups of bands.
(Basic or Profile) is displayed in the upper right corner with the
alarm level shown in dB. The current date and time are displayed at The alarm threshold is summarized in 12 bands using the method
the bottom of the screen. Alarm or fault status information is shown described above. The portion of the band that exceeds the alarm
at the top of the screen. threshold is inverted (displayed in white) as shown in Figure 6-2.
The spectrum display on the UD10 uses 12 bands to summarize
the FlexSonic Detector’s 144 band spectrum in the following way:
• The first 4 bands summarize the audible range
(20 Hz - 20 kHz). Each of the first 4 bands represents an
aggregate of 30 bands from the spectrum, for a total of 120
bands. See Figure 6-2.
• The remaining 8 bands summarize the ultrasonic range from
20 kHz – 80 kHz. Each of the these bands represents an
aggregate of 3 bands from the spectrum, for a total of 24 bands.
• The Y axis of the display represents the band amplitude in
dB, scaled to fit the full height of the graph at the maximum

7.4 P-2 95-8661

 ALARM/FAULT STATUS

ALARM MODE
AL ARM
BASIC
5 9 DB ALARM LEVEL

DATE AND TIME

09 NOV 2 0 1 5 0 8 :5 2
A2697

Figure 6-1—UD10 Screen When Used with FlexSonic Acoustic Detector

AUDIBLE RANGE
4X 30 BANDS = 120 BANDS

ULTRASONIC RANGE
8X 3 BANDS = 24 BANDS

MAXIMUM AMPLITUDE = 139 dB

A2698

Figure 6-2—UD10 Display Uses 12 Bands to Represent the FlexSonic Acoustic Detector’s 144 Bands

MENU STRUCTURE

UD10 with FlexSonic Acoustic Gas Detector

Refer to the following menu when using the UD10’s LCD display
and internal magnetic switches.

When connecting a HART Communicator to the UD10’s 4-20 mA

output, refer to the “UD10 HART Handheld” menu in Appendix F.

MENU HELP
Status menus only allow the user to view the data. The
Setup menus allow the user to both view and edit the
data.

7.4 P-3 95-8661

 APPENDIX Q

UD10 with MODEL PIRDUCT

NOTE
For complete information regarding the PIRDUCT Gas Detector, refer to instruction manual 95-8573.

WIRING
UD10-DCU with PIRDUCT
4000

3500

3000
AWG
Distance in ft.

2500 Wire Size

2000 12
14
1500 16
1000
18

500

0
18 19 20 21 22 23 24 25 26 27 28 29 30
Power Supply Voltage

Notes: Maximum recommended cable length from power source to UD10-DCU is 2000 feet.
Maximum recommended cable length from UD10-DCU to PIR9400/PIRTB termination box is 2000 feet.

UD10 DISPLAY UNIT

Sensor Connector
J3-1

J3-2

J3-3

J3-4

J3-5

J3

PIRDUCT
CALIBRATE

24 VDC –
SHIELD

24 VDC +
4-20 mA

Output Loop
Connector YELLOW
HIGH ALARM COM J4-1
4-20 mA +
BLACK
P1-3 HIGH ALARM NC J4-2
WHITE
P1-2 4-20 mA – HIGH ALARM NO J4-3

AUX ALARM COM J4-4 RED

Relay Connector

P1-1 SHIELD
AUX ALARM NC J4-5 GREEN
P1
AUX ALARM NO J4-6

LOW ALARM COM J4-7

J2
SEE NOTE 1
LOW ALARM NC J4-8
J2-3 COM
LOW ALARM NO J4-9
J2-2 RS485 A FAULT COM J4-10

FAULT NC J4-11
J2-1 RS485 B
FAULT NO J4-12
24 VDC –
24 VDC –

24 VDC +
24 VDC +

MODBUS
SHIELD

SHIELD

J4
Connector
P2-6

P2-5

P2-4

P2-3

P2-2

P2-1

P2

NOTE 1 CONNECT THE GREEN SENSOR LEAD

Power Supply Connector
TO THE CHASSIS GROUND LUG ON THE
INSIDE BOTTOM OF THE DISPLAY ENCLOSURE.

NOTE 2 UD10 HOUSING MUST BE ELECTRICALLY

A2694 CONNECTED TO EARTH GROUND.

PIRDUCT Wired Directly to UD10

7.4 Q-1 95-8661

 PIRTB JUNCTION BOX
PIRDUCT
DETECTOR
UD10 DISPLAY UNIT
SEE NOTE 1
Sensor Connector GREEN

J3-1

J3-2

J3-3

J3-4

J3-5
J3
SPARE CHASSIS

CALIBRATE
CAL

24 VDC –
SHIELD

24 VDC +
4-20 mA
Output Loop CAL
Connector YELLOW
HIGH ALARM COM J4-1 4 – 20 4 – 20 WHITE
4-20 mA +
P1-3 HIGH ALARM NC J4-2 RET RET BLACK
HIGH ALARM NO J4-3 RED
P1-2 4-20 mA –
+24 +24
AUX ALARM COM J4-4

Relay Connector
P1-1 SHIELD
AUX ALARM NC J4-5
P1
AUX ALARM NO J4-6

LOW ALARM COM J4-7

J2
LOW ALARM NC J4-8
J2-3 COM
LOW ALARM NO J4-9
J2-2 RS485 A FAULT COM J4-10

FAULT NC J4-11
J2-1 RS485 B
FAULT NO J4-12
24 VDC –
24 VDC –

24 VDC +
24 VDC +

MODBUS
SHIELD

SHIELD

J4
Connector
P2-6

P2-5

P2-4

P2-3

P2-2

P2-1

P2

NOTE 1 CONNECT THE GREEN SENSOR LEAD

Power Supply Connector
TO THE CHASSIS GROUND LUG ON THE
INSIDE BOTTOM OF THE PIRTB.

NOTE 2 HOUSINGS MUST BE ELECTRICALLY

A2699 CONNECTED TO EARTH GROUND.

UD10 Wired to PIRDUCT with PIRTB Termination Box

INSTALLATION NOTES
CORRECT
Direction of Air Flow
IMPORTANT
Hydrocarbon-based grease emits hydrocarbon
vapors that will be measured by PIRDUCT, resulting
in inaccurate gas level readings. Use only low vapor
pressure Lubriplate grease or Teflon tape on the
PIRDUCT detector and associated termination box. Do
not get grease on the optics of the detector. A suitable
grease is listed in the “Ordering Information” section in
this manual.

IMPORTANT IMPORTANT: MOUNTING PLATE MUST BE ORIENTED AS SHOWN.

In applications where both PIRDUCT and catalytic ONCE THE MOUNTING PLATE IS SECURED TO THE
DUCT WALL, THE TERMINATION BOX CAN BE
type sensors are used, ensure that the grease used to
ROTATED TO ANY CONVENIENT POSITION.
lubricate the PIRDUCT detector threads does not come
into contact with the catalytic sensors, since poisoning
of the catalytic sensors could result. It is strongly
recommended that maintenance personnel wash their INCORRECT
hands between handling the two types of sensors.

ORIENTATION
The PIRDUCT Detector is a position sensitive instrument. It must be
installed in the proper orientation to achieve proper vapor detection.
Ensure that the installation location selected will accommodate the Direction of Air Flow
instrument in the proper mounting orientation. B2280

Orientation of PIRDUCT Mounting Plate

Relative to Direction of Airflow through Duct

7.4 Q-2 95-8661

CHANGING OPERATING MODES UD10 mA Output During Calibration
When used with a PIRDUCT, the operating mode of the UD10 must (UD10 with PIR9400)
be changed from “HART Device” to “PIRDUCT” mode. Refer to the Replicate
UD10 Display Reading Standard Mode
“Startup” section of this manual for details. Mode

Waiting for Zero 3.8 2.2

CALIBRATION Waiting for Gas 3.8 3.8

To initiate calibration of the PIRDUCT from the UD10 Display: Waiting for Span 3.8 3.8

Remove Cal Gas 3.8 3.8

1. Using the magnet to activate the switches on the UD10
display, navigate to the “Calibration” menu. Back to Normal 4.0 4.0

Main Menu
Process Vars
Display Status 3. The UD10 will then display “Waiting for Gas” on the screen,
Device Status Device Cal Calibration
Display Setup Calibration Execute
while the LED at the PIRTB is flashing red.
Device Setup Cal Gas Conc Abort
Device Cal 4. Apply calibration gas to the detector.
Display Test
Language
5. The UD10 will display “Waiting for Span” on the screen, with a
red flashing LED at the PIRTB.
2. Activate “Execute” (Enter/Select) to start calibration.
6. When the UD10 displays “Remove Cal Gas” on the screen and
3. The UD10 will display “Waiting for Zero” on the main display the LED at the PIRTB turns off, remove the calibration gas.
screen.
7. After successful calibration, the UD10 automatically returns to
4. The UD10 will then display “Waiting for Gas” on the screen. the normal mode, and the LED on the PIRTB remains off.

5. Apply calibration gas to the PIRDUCT.

6. The UD10 will continue to display “Waiting for Gas” on the

screen. CALIBRATE SWITCH

HOLD CALIBRATION MAGNET

7. When the UD10 displays “Remove Cal Gas” on the screen, AT OUTSIDE BASE OF JUNCTION
BOX AT THIS LOCATION
REMOTE LED

remove the calibration gas from the PIRDUCT. TO ACTIVATE CALIBRATION SWITCH

8. The UD10 automatically returns to the normal mode after

successful calibration.

To initiate calibration from the PIRTB Termination Box while

monitoring calibration using the UD10 display:

1. Using the magnet, activate the magnetic calibration switch on

the PIRTB Termination Box. The LED at the PIRTB turns from
off to steady red.

2. The UD10 will display “Waiting for Zero” on the main display
screen, with a steady red LED at the PIRTB.

B2056

PIRTB Termination Box

7.4 Q-3 95-8661

MENU STRUCTURE

UD10 with PIRDUCT Gas Detector

Refer to the following menu when using the UD10’s LCD display
and internal magnetic switches.

When connecting a HART Communicator to the UD10’s 4-20 mA

output, refer to the “UD10 HART Handheld” menu in Appendix F.

MENU HELP
Status menus only allow the user to view the data. The
Setup menus allow the user to both view and edit the
data.

7.4 Q-4 95-8661

 APPENDIX R

UD10 with MODEL PIRECL CARBON DIOXIDE DETECTOR

NOTE
For complete information regarding the PIRECL CO2 Gas Detector, refer to instruction manual 95-8676.

WIRING

UD10-DCU with PIRECL

4000

3500

3000
AWG
Distance in ft.

2500 Wire Size

2000 12
14
1500 16
1000
18

500

0
18 19 20 21 22 23 24 25 26 27 28 29 30
Power Supply Voltage

Notes: Maximum recommended cable length from power source to UD10-DCU is 2000 feet.
Maximum recommended cable length from UD10-DCU to detector/STB termination box is 2000 feet.

7.4 R-1 95-8661

 MODEL PIRECL
BLACK
24 VDC – 1

24 VDC + 2 RED

CALIBRATE 3

24 VDC – 4

24 VDC + 5 1
4-20 MA + 6

4-20 MA – WHITE
7

RS-485 B 8

RS-485 A 9
UD10 DISPLAY UNIT
RELAY POWER (RED) 10
WIRING TO OPTIONAL FAULT (ORANGE) 11
RELAY BOARD Sensor Connector
NO USER CONNECTION LOW ALARM (WHITE) 12

J3-1

J3-2

J3-3

J3-4

J3-5
J3
HIGH ALARM (YELLOW) 13

CALIBRATE

24 VDC –
SHIELD

24 VDC +
4-20 mA
Output Loop
Connector
HIGH ALARM COM J4-1
P1-3 4-20 mA +
HIGH ALARM NC J4-2

P1-2 4-20 mA – HIGH ALARM NO J4-3

AUX ALARM COM J4-4

Relay Connector
P1-1 SHIELD
AUX ALARM NC J4-5
P1
AUX ALARM NO J4-6

LOW ALARM COM J4-7

J2
LOW ALARM NC J4-8
J2-3 COM
LOW ALARM NO J4-9
J2-2 RS485 A FAULT COM J4-10

FAULT NC J4-11
J2-1 RS485 B
FAULT NO J4-12

24 VDC –
24 VDC –

24 VDC +
24 VDC +
MODBUS

SHIELD

SHIELD
J4
NOTE 1 INTERNAL JUMPER REQUIRED FOR Connector
NON-ISOLATED CURRENT OUTPUT
(SINGLE POWER SUPPLY).

P2-6

P2-5

P2-4

P2-3

P2-2

P2-1
P2

NOTE 2 UD10 HOUSING MUST BE ELECTRICALLY

CONNECTED TO EARTH GROUND. Power Supply Connector

C2404

Model PIRECL CO2 Wired Directly to UD10

ORIENTATION
It is highly recommended that the PIRECL CO2 be installed
in the horizontal position. The detector is not position-sensitive
in terms of its ability to detect gas. However, the weather baffle
assembly provides superior performance when the PIRECL CO2 is
installed with the baffle in a horizontal position.

CORRECT INCORRECT

7.4 R-2 95-8661

CALIBRATION To initiate calibration from the PIRECL CO2 while monitoring
calibration using the UD10 display:
To initiate calibration of the PIRECL CO2 from the UD10 Display:
1. Using the magnet, activate the magnetic calibration switch on
1. Using the magnet to activate the switches on the UD10 the PIRECL CO2 detector. See Figure below. The LED turns
display, navigate to the “Calibration” menu. from green to red.

Main Menu 2. The UD10 will display “Waiting for Zero” on the main display
Process Vars screen, with a solid red LED on the PIRECL CO2 housing
Display Status
Device Status
Device Cal illuminated.
Cal Gas Con Calibration
Display Setup
Cal Gas Type Execute
Device Setup
Calibration Abort 3. The UD10 will then display “Waiting for Gas” on the screen,
Device Cal
Display Test
Date while the LED on the PIRECL CO2 is flashing red.
Device Test
Language 4. Apply calibration gas to the PIRECL CO2 detector.

5. The UD10 will display “Waiting for Span” on the screen, while a
2. Activate “Execute” (Enter/Select) to start calibration. red flashing LED on the PIRECL CO2 housing is illuminated.

3. The UD10 will display “Waiting for Zero” on the main display 6. When the UD10 displays “Remove Cal Gas” on the screen
screen, with a solid red LED on the PIRECL CO2 housing and the LED on the PIRECL CO2 housing is off, remove the
illuminated. calibration gas.

4. The UD10 will then display “Waiting for Gas” on the screen, 7. After successful calibration, the UD10 automatically returns to
while the LED on the PIRECL CO2 is flashing red. the normal mode with the green LED illuminated on the PIRECL
CO2.
5. Apply calibration gas to the PIRECL CO2.

6. The UD10 will display “Waiting for Span” on the screen, while a
red flashing LED on the PIRECL CO2 housing is illuminated.

7. When the UD10 displays “Remove Cal Gas” on the screen MULTICOLOR LED

and the LED on the PIRECL CO2 housing is off, remove the
calibration gas. HART COMMUNICATION PORT
(COVER INSTALLED)

8. After successful calibration, the UD10 automatically returns

to the normal display with the green LED illuminated on the PLACE CALIBRATION MAGNET
PIRECL CO2 housing. HERE TO ACTIVATE INTERNAL
REED SWITCH

CALIBRATION MAGNET

UD10 mA Output During Calibration

(UD10 with PIRECL CO2)
Replicate B2435 CALIBRATION NOZZLE
UD10 Display Reading Standard Mode
Mode

Waiting for Zero 3.8 2.2 Model PIRECL CO2 Gas Detector

Waiting for Gas 3.8 2.0

Waiting for Span 3.8 2.0

Remove Cal Gas 3.8 1.8

Back to Normal 4.0 4.0

7.4 R-3 95-8661

MENU STRUCTURE

UD10 with Model PIRECL CO2 Gas Detector

Refer to the following menu when using the UD10’s LCD display
and internal magnetic switches.

When connecting a HART Communicator to the UD10’s 4-20 mA

output, refer to the “UD10 HART Handheld” menu in Appendix F.

MENU HELP
Status menus only allow the user to view the data. The
Setup menus allow the user to both view and edit the
data.

7.4 R-4 95-8661

 APPENDIX S

UD10 with LS2000 LINE OF SIGHT GAS DETECTOR

NOTE
For complete information regarding the LS2000 Gas Detector, refer to instruction manual 95-8714.

WIRING
UD10 with LS2000
4000

3500

3000
AWG
Distance in ft.

2500 Wire Size

2000 12
14
1500 16
1000
18

500

0
18 19 20 21 22 23 24 25 26 27 28 29 30
Power Supply Voltage

Notes: Maximum recommended cable length from power source to UD10 is 2000 feet.
Maximum recommended cable length from UD10 to sensor is 2000 feet.

7.4 S-1 95-8661

 LS2000 RECEIVER WITHOUT RELAYS

0V COM 1 SPARE 11

0V COM 2 +24 VDC 12

0V COM 3 +24 VDC 13

SHIELD 4 SHIELD 14

INTR B 5 INTR A 15

CAL 6 INTR GND 16 1

SHIELD 7 SHIELD 17

RS-485 B 8 RS-485 A 18

–mA 9 +mA 19

HART

UD10 DISPLAY UNIT

Sensor Connector

J3-1

J3-2

J3-3

J3-4

J3-5
J3

CALIBRATE

24 VDC –
SHIELD

24 VDC +
4-20 mA
Output Loop
Connector
HIGH ALARM COM J4-1
P1-3 4-20 mA +
HIGH ALARM NC J4-2

P1-2 4-20 mA – HIGH ALARM NO J4-3

AUX ALARM COM J4-4

Relay Connector
P1-1 SHIELD
AUX ALARM NC J4-5
P1
AUX ALARM NO J4-6

LOW ALARM COM J4-7

J2
LOW ALARM NC J4-8
J2-3 COM
LOW ALARM NO J4-9
J2-2 RS485 A FAULT COM J4-10

FAULT NC J4-11
J2-1 RS485 B
FAULT NO J4-12

24 VDC –
24 VDC –

24 VDC +
24 VDC +
MODBUS

SHIELD

SHIELD
J4
Connector

NOTE 1 INTERNAL JUMPER REQUIRED FOR

P2-6

P2-5

P2-4

P2-3

P2-2

P2-1
P2
NON-ISOLATED CURRENT OUTPUT
(SINGLE POWER SUPPLY).
Power Supply Connector
NOTE 2 UD10 HOUSING MUST BE ELECTRICALLY
CONNECTED TO EARTH GROUND. A2695

LS2000 Wired Directly to UD10

7.4 S-2 95-8661

INSTALLATION CALIBRATION
LS2000 modules must be affixed to a solid, non-vibrating structure To initiate zero calibration of the LS2000 from the UD10 Display:
capable of supporting a minimum of 100 lbs (46 kg), located within
the system’s rated separation distance. See examples below. 1. Using the magnet to activate the switches on the UD10 display,
navigate to the “Calibration” menu.
In all cases, consider whether additional bracing or support is
needed to ensure the structural integrity of the module installation. Main Menu
Remember that accurate module alignment is essential for proper Process Vars
Display Status
performance of a line-of-sight gas detection system. Movement Device Status
may have a detrimental effect on alignment. This is especially true Display Setup Device Cal
Calibration
Execute
for installations with significant module separation distances. Device Setup Calibration
Abort
Device Cal
Display Test
Device Test
Language

2. Activate “Execute” (Enter/Select) to start calibration.

3. The UD10 will display “Waiting for Zero” on the main display
screen, with a solid red LED on the LS2000 housing illuminated.

4. After the calibration is successfully completed, the UD10

automatically returns to the normal display with the green LED
illuminated on the LS2000 housing.

UD10 mA Output During Calibration

(UD10 with LS2000)
Replicate
UD10 Display Reading Standard Mode
Mode
LS2000 Gas Detector Mounted to Vertical Post
Waiting for Zero 3.8 1.0*
*Can be set at 2.2 mA or as configured by user.
Back to Normal 4.0 4.0

LS2000 Gas Detector Mounted to Flat Surface

(Refer to LS2000 Instruction Manual for mounting plate hole
spacing dimensions.)

7.4 S-3 95-8661

To initiate zero calibration from the LS2000: MENU STRUCTURE
1. Using the magnet, activate the magnetic calibration switch on
UD10 with LS2000 Line of Sight Gas Detector
the LS2000 receiver. See Figure below. The green LED will
turn red. Refer to the following menu when using the UD10’s LCD display
and internal magnetic switches.
2. The UD10 will display “Waiting for Zero” on the main display
screen, with a solid red LED on the LS2000 housing illuminated. When connecting a HART Communicator to the UD10’s 4-20 mA
output, refer to the “UD10 HART” menu in Appendix F.
3. After the calibration is successfully completed, the UD10
automatically returns to the normal display with the green LED MENU HELP
illuminated on the LS2000 housing. Status menus only allow the user to view the data. The
Setup menus allow the user to both view and edit the
data.

PLACE CALIBRATION MAGNET HERE

A2648 TO ACTIVATE INTERNAL REED SWITCH

Location of Receiver’s Internal Magnetic Switch

7.4 S-4 95-8661

 95-8661

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