Instructions

Det-Tronics® SmokeWatch™ Explosion Proof Smoke Detector

U5015

3.1 Rev: 3/17 95-8723

 Table of Contents
OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . 5
Grease / Lubrication . . . . . . . . . . . . . . . . . . 5
FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Identification of Detector Mounting
Locations . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Protection Against Moisture Damage . . . . 6
BENEFITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Power Supply Requirements . . . . . . . . . . . 6
Transport Cover . . . . . . . . . . . . . . . . . . . . . 6
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . 2 Mounting Location Options . . . . . . . . . . . . 6
Mount the Detector . . . . . . . . . . . . . . . . . . 7
Wiring Cable Requirements . . . . . . . . . . . . 7
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Jumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Warm Up . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Wiring Procedure . . . . . . . . . . . . . . . . . . . . 8
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Integral Wiring Compartment . . . . . . . . . . . 4
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . 9
Latching . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Routine Inspection . . . . . . . . . . . . . . . . . . . 9
Non-Latching . . . . . . . . . . . . . . . . . . . . . . . 4
Continuous Self-Test . . . . . . . . . . . . . . . . . 4 DEVICE REPAIR AND RETURN . . . . . . . . . 13
Manual Self-Test . . . . . . . . . . . . . . . . . . . . 4

IMPORTANT SAFETY NOTES . . . . . . . . . . . . 5 ORDERING INFORMATION . . . . . . . . . . . . . 13

Spare Parts . . . . . . . . . . . . . . . . . . . . . . . 13
Accessories . . . . . . . . . . . . . . . . . . . . . . . 13
U5015 Model Matrix . . . . . . . . . . . . . . . . . 13

APPENDIX A – FM APPROVAL
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . 14

APPENDIX B – CSA APPROVAL

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . 15

APPENDIX C – IECEx APPROVAL

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . 16

APPENDIX D – ADDITIONAL APPROVALS

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . 17
 INSTRUCTIONS
Det-Tronics® SmokeWatch™
Explosion Proof Smoke Detector
U5015

WARNING
Be sure to read and understand the entire
instruction manual before installing or
operating the smoke detection system. Any
deviation from the recommendations in this
manual may impair system performance
and compromise safety.

OVERVIEW
The Det-Tronics® SmokeWatch™ U5015 Explosion
Proof Smoke Detector has Division and Zone
explosion-proof ratings and is suitable for industrial
and commercial applications. The detector is FEATURES
designed to operate effectively with smoldering
and rapidly growing fires and contains the ability to • FM Approved for use in Class I, Division 1
annunciate fault ensuring no undisclosed failures. hazardous locations
The SmokeWatch U5015 Smoke Detector outputs • FM Approved for smoke detection performance
include 0-20 mA, a localized LED, and relays.
• IECEx Zone approved
Typical applications that use the U5015 include: • Trouble-free photoelectric operation
• 0-20 mA output for DCS integration
–– Combustible storage facilities
• Self-checking circuitry ensures reliable smoke
–– Munitions manufacturing
detection
–– Volatile chemical storage
–– Chemical processing plants • Alarm, Auxiliary, and Fault relays for controlling
annunciating devices or fire panel interface
–– Petroleum refineries
–– Turbine enclosures • LED provides a visual indication that an alarm
–– Battery rooms has occurred
–– HVAC applications • IP44 ingress protection level suitable for
onshore or offshore requirements
The hot-swappable sensor module is intrinsically
safe and allows live maintenance while under BENEFITS
power, without de-classifying the hazardous area.
The integrated junction box is available in a • Ideally suited for classified areas in the
variety of port configurations for simplified wiring petrochemical, oil, and gas industry
and installation. See Figure 1 for all the U5015 • DCS, PLC, integration with milliamp or relay
Smoke Detector components. outputs
• Rugged design for environmental extremes
• Visual confirmation of detector alarm
• Detects smoldering fires
• No undisclosed failures

3.1 ©Detector Electronics Corporation 2017 1 Rev: 3/17 95-8723

 LED

I.S. SENSOR MODULE

RETAINING RING

JUNCTION BOX

A2679

Figure 1—U5015 Components

SPECIFICATIONS
INGRESS PROTECTION—
OPERATING VOLTAGE— IP44
12-30 Vdc (24 Vdc nominal) Note: Applicable to ceiling mount only

CURRENT OUTPUT—
SMOKE DENSITY— 0-20 mA (±0.3 mA) dc current, with maximum
1.5% - 2.5% obscuration per foot. loop resistance of 300 ohms from 12-17.9 Vdc,
(4.9% - 8.2% obscuration per meter). 500 ohms from 18 to 19.9 Vdc, and 600 ohms
POWER CONSUMPTION— from 20-30 Vdc.
3.5 watts maximum (2.75 Watts at 24 Vdc) TERMINALS—
0.674 Watts with no relays energized. UL/CSA rated for 14-18 AWG or 2.5-0.75 mm2 wire.
1.23 Watts with one relay energized.
2.12 Watts with two relays energized. THREAD OPTIONS—
2.68 Watts with three relays energized. 3/4 inch NPT or M25.
Multi-port models available.
OUTPUT RELAYS—
Smoke alarm relay, Form C, 5 amperes at 30 Vdc: ENCLOSURE MATERIAL—
The smoke alarm relay has normally open/ Polycarbonate / ABS - Smoke Detector.
normally closed contacts and normally de- Copper-free aluminum (painted) - Junction Box
energized operation.
SHIPPING WEIGHT (Approximate)—
Fault relay, Form A, 5 amperes at 30 Vdc: 7.85 lbs (3.56 kg).
The fault relay has normally open contacts and
normally energized operation. WARRANTY PERIOD—
1 year.
Auxiliary relay, Form C, 5 amperes at 30 Vdc:
The auxiliary relay has normally open/normally DIMENSIONS—
closed contacts and normally de-energized See Figure 2.
operation.
CERTIFICATION—
TEMPERATURE RANGE— For complete approval details, refer to the
Operating: –20°C to +65°C (–4°F to +149°F) appropriate Appendix:
Storage: –55°C to +70°C (–67°F to +158°F ).
HUMIDITY RANGE— FM ®

5 to 95% relative humidity.

APPROVED

3.1 2 95-8723
Appendix A - FM The smoke alarm relay has a single set of
Appendix B - CSA terminals and normally open / normally closed
Appendix C - IECEx contacts, and normally de-energized operation.
Appendix D - Additional Approvals
The fault relay has a single set of terminals
and normally open contacts, and normally
OPERATION energized operation.
WARM UP
When the detector is initially powered up, a warm- The auxiliary relay has a single set of terminals
up period of one – two seconds is allotted for and normally open / normally closed contacts,
internal checks and communication. During this and normally de-energized operation.
time, the LED is off and the current level is 3 mA.
After the checks are completed, normal operation IMPORTANT
will be indicated by the LED flashing every four The auxiliary relay functions as pre-alarm.
seconds (current level is 4 mA).
0 to 20 mA Output
If the detector is unable to reach the normal
operating mode, the warm-up period may extend The U5015 provides a 0 to 20 mA dc current for
to five seconds, followed by a critical fault or an transmitting detector status information to other
advisory fault (see Table 1 for all current levels). devices. The circuit is wired in a non-isolated
If the problem persists, check for any loose wiring configuration and can drive a maximum loop
connections, ensure that the voltage supply is resistance of 300 ohms from 12 to 17.9 Vdc, 500
sufficient, and cycle power if necessary. ohms from 18 to 19.9 Vdc, and 600 ohms from
20 to 30 Vdc. Table 1 defines the current levels
and corresponding detector status. The output
OUTPUTS is calibrated at the factory, with no need for field
Relays calibration.

The U5015 detector is furnished with smoke

alarm, fault, and auxiliary relays. All three
Table 1—Detector Status Conditions Indicated by Current Level
relays are rated to 5 amperes at 30 Vdc.
Current Level (±0.3 mA) Detector Status
2X 2.25 (5.71)
2X 1.75 0 mA Power Fault
(4.44)
6X R0.19 1 mA Critical Fault
3 mA Warm up
4 mA Normal
2X 3.80 (9.65)
6 mA Advisory Fault
16 mA Pre-Alarm
20 mA Smoke Alarm
7.55 (19.18)

3.75 (9.52) NOTE

The output of the 0 to 20 mA current loop
is monitored by the fault detection circuitry
of the U5015. Therefore, an open circuit on
the loop will cause the fault relay to change
state.

An alarm will normally over-ride a fault, unless

4.99 (12.67) the nature of the fault impairs the ability of
the detector to generate or maintain an alarm
output (i.e., loss of operating power).
4X 1.29 (3.27)

B2680 2X 2.50 (6.35)

Figure 2—U5015 Dimensions in Inches (cm)
7.55 (19.18)

3.1 3 95-8723
INTEGRAL WIRING COMPARTMENT CONTINUOUS SELF-TEST
All external wiring to the device is connected During normal operation, the detector performs
within the integral junction box. The detector is the Self-Test function automatically in the
furnished with a maximum of four conduit entries, background once per second. During the test,
with either 3/4 inch NPT or M25 threads. detection is not interrupted and no indication is
given if the test passed. If the test fails, a critical
fault will occur. If degradation is present and
LED
approaching critical levels, an advisory fault will
An LED, located on the detector (see Figure 1), occur.
indicates normal operation and notifies personnel
of an alarm. Table 2 indicates the condition of the MANUAL SELF-TEST
LED for each status.
The Manual Self-Test function will immediately
check the smoke chamber optics for degradation.
Table 2—Detector Status Indicator
Once initiated, there will be a one second delay
before the result of the check is active. If there is
Detector Status LED Indicator a failure, the LED will shut off immediately after
Power On / Steady Off the one second test and a critical fault will occur.
Normal Operation 1 blink on every 4 seconds If the test passes, an alarm will be annunciated
Alarm Steady On while the LED remains active.

For a latching detector, the alarm will continue

until power is cycled to the unit. If the test passes,
LATCHING but there is degradation present and approaching
critical levels, an advisory fault will occur. For a
A detector configured for latching operation will non-latching detector the alarm will clear after 10
remain in an alarm state indefinitely, after an seconds.
alarm occurs.
Magnetic Switch
NON-LATCHING
The magnetic switch is used to initiate the Manual
A detector configured for non-latching operation Self-Test (see Figure 3). Apply the magnet to the
will check the alarm status of the detector once exterior housing and the LED will light to indicate
every 10 seconds. Once smoke falls below the that the magnet is detected. The LED will remain
alarm threshold, the alarm annunciation will clear lit for at least one second during the test. After
within 10 seconds. the initial delay, the test status will be indicated as
described in the "Manual Self-Test" section.
IMPORTANT
The latching or non-latching configuration
must be specified during order placement.
It is not field configurable.
Only the alarm annunciation can be
configured for latching operation.

MAGNETIC SWITCH

Figure 3—Location of Magnetic Switch

3.1 4 95-8723
IMPORTANT SAFETY NOTES INSTALLATION

CAUTION WARNING
The wiring procedures in this manual are All entries must contain appropriately rated
intended to ensure proper functioning of the plugs or fittings. It is required that each
device under normal conditions. However, plug or fitting be wrench-tightened to an
because of the many variations in wiring appropriate installation torque and meet the
codes and regulations, total compliance to minimum thread engagement requirements
these ordinances cannot be guaranteed. per the applicable local standards, codes,
Be certain that all wiring complies with the and practices in order to retain the defined
NEC as well as all local codes. If in doubt, ratings. PTFE sealant or equivalent should
consult the authority having jurisdiction be used on NPT threads.
before wiring the system. Installation must
be done by a properly trained person. NOTE
Detector housings must be electrically
connected to earth ground. Internal
CAUTION and external earth ground terminals are
This product has been tested and approved provided. For AEx (United States Zone)
for use in hazardous areas. However, it must installations the internal ground terminal
be properly installed and used only under shall be used for the equipment grounding
the conditions specified within this manual connection. The external terminal can be
and the specific approval certificates. Any used for supplementary bonding where
device modification, improper installation, or local codes permit or require.
use in a faulty or incomplete configuration
w i l l re n d e r wa rra n t y a n d p ro d u c t NOTE
certifications invalid. The U5015 detector uses an internal
Intrinsically Safe (I.S.) Barrier. Proper NEC
I.S. grounding must be ensured.
CAUTION
The device contains no user serviceable GREASE/LUBRICATION
components. Service or repair should
never be attempted by the user. Device To ease installation and future removal, all
repair should be performed only by the threaded covers, stopping plugs, and thread
manufacturer. adapters must be installed using thread lubricant.
The recommended lubricant is a silicone-free
grease, available from Det-Tronics.
CAUTION
The U5015 is to be installed in locations For devices with NPT threads, Teflon tape or
where the risk of mechanical damage is low. thread seal lubricant must be used for enhanced
sealing capabilities.
LIABILITIES
IDENTIFICATION OF DETECTOR MOUNTING
The manufacturer’s warranty for this
LOCATIONS
product is void, and all liability for proper
function of the detector is irrevocably The most effective number and placement of
transferred to the owner or operator in the detectors varies depending on the conditions on
event that the device is serviced or repaired site. The individual designing the installation must
by personnel not employed or authorized often rely on experience and sound judgment to
by Detector Electronics Corporation, determine the detector quantity and best locations
or if the device is used in a manner not to adequately protect the area. Note that it is
conforming to its intended use. typically advantageous to locate detectors where
they are accessible for maintenance.
NOTE
O b s e r v e p re ca u t i o n s fo r h a n d l i n g For additional information on detector location
electrostatic sensitive devices. and spacing, visit the National Fire Protection
Association's website (www.nfpa.org) and refer
to the National Fire Alarm and Signaling Code,
NFPA 72.

3.1 5 95-8723
PROTECTION AGAINST MOISTURE DAMAGE TRANSPORT
COVER

It is important to take proper precautions during

installation to ensure that moisture will not come
in contact with the electrical connections of the
system. The integrity of the system regarding
moisture protection must be maintained for
proper operation and is the responsibility of the
installer.
If conduit is used, the use of proper conduit
installation techniques, breathers, glands, and Figure 4—U5015 Transport Cover
seals is required to prevent water ingress and/or
maintain the explosion-proof rating.
Conduit drains must be installed at water
collection points to automatically drain MOUNTING LOCATION OPTIONS
accumulated moisture. Conduit breathers Ceiling Mount
should be installed at upper locations to
provide ventilation and allow water vapor to The U5015 is intended for surface mounting. It is
escape. At least one breather should be used normally mounted on the ceiling no less than six
with each drain. inches from a side wall (See Figure 5). The exact
location of the detector must be determined by an
Conduit raceways should be inclined so that evaluation based on engineering judgement, or if
water will flow to low points for drainage and possible, by field tests.
will not collect inside enclosures or on conduit
seals. If this is not possible, install conduit drains
above the seals to prevent the collection of water CEILING
or install a drain loop below the detector with a
conduit drain at the lowest point of the loop. 6” Minimum

POWER SUPPLY REQUIREMENTS

SIDE
Calculate the total detection system power WALL
consumption rate in watts from cold start-up. LED

Select a power supply with adequate capability

for the calculated load. Ensure that the selected NOTE: MAKE CERTAIN THAT THE LED
IS POSITIONED WHERE VISIBLE.
power supply provides sufficient regulated and A2681

filtered output power for the entire system. If a Figure 5—U5015 Ceiling Mount
back-up power system is required, a float‑type
battery charging system is recommended. If an
existing source of power is being used, verify
that system requirements are met.
Wall Mount

TRANSPORT COVER The U5015 can also be mounted on a side wall

(See Figure 6). The exact location of the detector
The Transport Cover (see Figure 4) keeps dust must be determined by an evaluation based
and particles out of the smoke chamber that may on supplemented engineering judgement, or if
enter during transport, handling, or installation. It possible, by field tests.
should remain fastened on the detector through
the installation process. IMPORTANT
Whenever possible, select a mounting
IMPORTANT orientation where the LED is visible to
Remove the cover only after installation personnel within the area.
is complete and prior to powering the
detector for the first time.

3.1 6 95-8723
 CEILING WARNING
For field connections, use wires/cables that
are rated at 20°C greater than the maximum
ambient temperature.
6” Minimum
NOTE
In applications where the wiring is
installed in conduit, dedicated conduit is
SIDE
recommended. Avoid low frequency, high
WALL voltage, and non‑signaling conductors to
prevent nuisance EMI problems.

LED
JUMPER
NOTE: MAKE CERTAIN THAT THE LED Depending on the wiring option that is used,
IS POSITIONED WHERE VISIBLE.

A2682
jumpers may be required. See Table 3 for the
Jumper Usage Guide and Figures 12 to 15 for
Figure 6—U5015 Wall Mount
wiring examples.

MOUNT THE DETECTOR Table 3—Jumper Usage Guide

Using three No. 8 flat head screws (or equivalent) Wiring
placed through the counter bored holes in the 0-20 mA Relay
Option
detector flange, secure the detector junction box No jumper Not No jumper
1 Used
to the surface location. required Used required
Jumper
2 Used No jumper Used required in
required terminals 7 &
WIRING CABLE REQUIREMENTS 4 (P5)
Jumper Jumper
Always use proper temperature rated cabling Not required in required in
3 Used terminals 5 & Used terminals 7 &
type and diameter for input power as well as
4 (P11) 4 (P5)
output signal wiring. 14 to 18 AWG shielded
stranded copper wire is recommended.

The field wiring terminal connections are certified

for a single wire in size from 0.2 to 2.5 mm2 (or
two conductors with same cross section 0.2 to
0.75 mm2). The screws must be tightened down
with a torque 0.4 to 0.5 N•m. The metal housing
must be electrically connected to earth ground.

A minimum of 12 Vdc must be present at the

U5015 to ensure proper operation. The maximum
cable length from power source to U5015 is 2000
feet. When the U5015 Smoke Detector is mounted
remotely using an STB termination box, maximum
cable length from U5015 to STB is 500 feet.

3.1 7 95-8723
WIRING PROCEDURE 3. Connect the external wiring to the
appropriate terminals.
Ensure that all cables are terminated properly.
Conductor insulation should be stripped off –– Figure 9 shows the wiring terminals.
with a bare conductor length of 0.2 inch (5 mm)
–– Figure 10 shows the ground lug
minimum and 0.7 inch (18 mm) maximum. Ensure
locations.
that cable shield is properly terminated and that
bare shield wire is not allowed to accidentally –– Figures 12 and 13 show wiring for single
contact the metal housing or any other wire. detector configurations.
–– Figures 14 and 15 show wiring for multiple
Use the following instructions when wiring the detector configurations.
U5015 detector:
4. Re-install the assembly. Use the alignment
1. Slightly loosen the three setscrews located guide (see Figure 11) to align the retaining
on the retaining ring (see Figure 7). ring with the junction box.

RETAINING RING
5. Screw the retaining ring on to the junction
SET SCREWS (3) box and re-tighten the three setscrews.

RELAY
OUTPUTS
POWER
1 NO AUX
SUPPLY &
2 COM AUX 0-20 mA OUTPUT

3 NC AUX – mA 5
Figure 7—Setscrew Location
4 NO ALARM – Vin 4

5 COM ALARM + Vin 3

6 NC ALARM – Vin 2

7 COM FAULT + Vin 1

2. Unscrew the retaining ring to gain access 8 NO FAULT P11
to the wiring terminals (see Figure 8), and P5
complete the installation of the system
conduit. Feed the external wiring through
the remaining junction box entry or M25
to 3/4 inch adapter. When installing the A2683

junction box, use care not to damage the

Figure 9—U5015 Wiring Terminals
wires and refrain from twisting them.

WIRING
TERMINALS

RETAINING RING

Figure 8—Location of Wiring Terminals

3.1 8 95-8723
 MAINTENANCE

WARNING
To avoid a potential electrostatic discharge
(ESD), do not wipe or rub the surface of the
U5015 sensor module.

NOTE
The U5015 Smoke Detector contains no
user serviceable components and should
GROUND LUGS never be opened. The U5015 wiring
Figure 10—Ground Lug Locations
compartment is the only part of the smoke
detector that should be opened by the user
in the field.

ROUTINE INSPECTION
Regularly scheduled maintenance is not
required, however the U5015 cover and smoke
chamber should be inspected periodically when
detectors are located in abnormally dirty or dusty
environments. to ensure the smoke chamber is
not blocked by dirt or debris

The smoke detector can be tested using the

same methods employed for any photo-electric
detector. Det-Tronics recommends using a
test aerosol smoke dispenser for periodic
ALIGNMENT GUIDE
maintenance of the detector.
Figure 11—Alignment Guide Location

3.1 9 95-8723
 PLC
mA

+
600 Ω MAX
AT 24 VDC

RELAY –
OUTPUTS
POWER
1 NO AUX POWER
SUPPLY &
2 COM AUX 0-20 mA OUTPUT

3 NC AUX – mA 5 +
4 NO ALARM – Vin 4

5 COM ALARM + Vin 3

6 NC ALARM – Vin 2

7 COM FAULT + Vin 1

2 WIRE
8 NO FAULT P11 CLASS B
RECEIVING ZONE
P5

CHASSIS
GROUND

B2684

GROUND LUG

Figure 12—Single Detector Wiring (0-20 mA used, Relays not used)

PLC

POWER
RELAY
OUTPUTS +
POWER
1 NO AUX
SUPPLY &
2 COM AUX 0-20 mA OUTPUT

3 NC AUX – mA 5

4 NO ALARM – Vin 4

5 COM ALARM + Vin 3

2 WIRE
– Vin 2
EOL 6 NC ALARM CLASS B
RESISTOR 7 COM FAULT + Vin 1 RECEIVING ZONE
8 NO FAULT P11

P5

CHASSIS
JUMPERS
GROUND

B2685

GROUND LUG

Figure 13—Single Detector Wiring (0-20 mA not used, Relays used)

3.1 10 95-8723
3.1
PLC
mA

+
600 Ω MAX
AT 24 VDC

mA

+
600 Ω MAX
AT 24 VDC
LAST DETECTOR IN LOOP FIRST DETECTOR IN LOOP
mA

+
RELAY RELAY RELAY
600 Ω MAX
OUTPUTS POWER OUTPUTS POWER OUTPUTS POWER AT 24 VDC
SUPPLY & SUPPLY & SUPPLY &
1 NO AUX 0-20 mA 1 NO AUX 0-20 mA 1 NO AUX 0-20 mA
2 OUTPUT 2 OUTPUT 2 OUTPUT
COM AUX COM AUX COM AUX
–
3 NC AUX – mA 5 3 NC AUX – mA 5 3 NC AUX – mA 5

4 NO ALARM – Vin 4 4 NO ALARM – Vin 4 4 NO ALARM – Vin 4 POWER

5 COM ALARM + Vin 3 5 COM ALARM + Vin 3 5 COM ALARM + Vin 3 +

11
6 NC ALARM – Vin 2 6 NC ALARM – Vin 2 6 NC ALARM – Vin 2

7 COM FAULT + Vin 1 7 COM FAULT + Vin 1 7 COM FAULT + Vin 1

8 NO FAULT P11 8 NO FAULT P11 8 NO FAULT P11

P5 P5 P5
2 WIRE
CLASS B
RECEIVING ZONE

CHASSIS
GROUND

B2686

GROUND LUG

Figure 14—Multiple Detector Wiring (0-20 mA used, Relays not used)

95-8723
3.1
LAST DETECTOR IN LOOP FIRST DETECTOR IN LOOP

PLC

RELAY RELAY RELAY

OUTPUTS POWER OUTPUTS POWER OUTPUTS POWER –
JUMPER SUPPLY & JUMPER SUPPLY & JUMPER SUPPLY &
JUMPER 1 NO AUX 0-20 mA 1 NO AUX 0-20 mA 1 NO AUX 0-20 mA POWER
2 OUTPUT 2 OUTPUT 2 OUTPUT
COM AUX COM AUX COM AUX
+
3 NC AUX – mA 5 3 NC AUX – mA 5 3 NC AUX – mA 5

4 NO ALARM – Vin 4 4 NO ALARM – Vin 4 4 NO ALARM – Vin 4

5 COM ALARM + Vin 3 5 COM ALARM + Vin 3 5 COM ALARM + Vin 3

6 NC ALARM – Vin 2 6 NC ALARM – Vin 2 6 NC ALARM – Vin 2

+ Vin 1 + Vin 1 + Vin 1
2 WIRE
7 COM FAULT 7 COM FAULT 7 COM FAULT
CLASS B

12
8 NO FAULT P11 8 NO FAULT P11 8 NO FAULT P11 RECEIVING ZONE
P5 P5 P5

CHASSIS
GROUND
EOL B2687
RESISTOR

GROUND LUG

Figure 15—Multiple Detector Wiring (0-20 mA not used, Relays used)

95-8723
DEVICE REPAIR AND RETURN ORDERING INFORMATION
The detector is not designed to be repaired in
When ordering, please specify:
the field. If it is determined that the problem is
caused by an electronic defect, the device must U5015 Explosion Proof Smoke Detector
be returned to the factory for repair. The sensor Refer to the U5015 Model Matrix for details
module is field replaceable in case of dirtiness,
damage, or failures incurred in the field.
SPARE PARTS
Prior to returning devices, contact the nearest
U5015 Replacement Sensor Module 104286-001
local Det-Tronics office so that a Return
Material Authorization (RMA) number can be
assigned. A written statement describing the ACCESSORIES
malfunction must accompany the returned Canned Smoke 000119-008
device or component to assist and expedite 000119-046
finding the root cause of the failure. Grease (silicone-free) 005003-001
Magnet 102740-002
Magnet with Extension Pole 007739-001
Pack the unit properly. Always use sufficient Stop Plug, 3/4" NPT, AL 101197-001
packing material. Where applicable, use an Stop Plug, M25, AL 101197-005
antistatic bag as protection from electrostatic Q5016-1 Duct Mount w/ 1 ft. tube 013901-001
discharge. Q5016-3 Duct Mount w/ 3 ft. tube 013901-003
Q5016-6 Duct Mount w/ 6 ft. tube 013901-006
NOTE Q5016-10 Duct Mt. w/ 10 ft. tube 013901-010
Det-Tronics reserves the right to apply a
service charge for repairing returned
product damaged as a result of improper
packaging.

Return all equipment via transportation prepaid to

the factory in Minneapolis.
U5015 MODEL MATRIX

MODEL DESCRIPTION
U5015 Explosion Proof Smoke Detector
TYPE MATERIAL
A Aluminum
TYPE PORT
1 1 Port
2 2 Port
3 3 Port
4 4 Port
TYPE THREAD
M Metric M25
N 3/4" NPT
TYPE OUTPUT
12 0-20 mA, Relay, Non-Latching
13 0-20 mA, Relay, Latching
TYPE APPROVAL
F FM
C CSA
R VNIIFTRI and VNIIPO (Russia)

3.1 13 95-8723
 APPENDIX A
FM APPROVAL DESCRIPTION

U5015
Class 1 Div 1 Groups B, C, D T4
Class 1 Div 2 Groups A, B, C, D T4
Class 1 Zone 1 AEX db ia IIC T4 Gb
Tamb –20°C to +65°C
IP44

Applicable Documents:
FM 3810 Elec. and Electronic Test, Measuring and Process Control Equipment
FM 3600 Electrical Equipment for use in Hazardous (Classified) Locations
FM 3610 Intrinsically Safe, Class I, II, III, Div I, Haz. Loc.
(ANSI/ISA 60079-11)
FM 3611 Elec. Equip. for use in Cl. I/II, Div. 2 and Cl. III, Div. 1/2 Haz. Loc.
FM 3615 Explosion proof electrical equipment
FM 3230 Smoke actuated detectors for automatic alarm signaling

Special Conditions For Safe Use X:

1. The U5015 is to be installed in locations where the risk of mechanical damage is low.
2. Potential electrostatic charging hazard please see instructions for proper installation.
3. All unused device openings must be closed using a suitably certified plug.
4. For field connections, use wire rated 20°C greater than maximum ambient temperature.
5. For AEx d rated Model U5015 Smoke Detector, the flameproof joints are not allowed to be
repaired per manufacturer's instruction manual.

3.1 14 95-8723
 APPENDIX B
CSA APPROVAL DESCRIPTION

U5015
Class - C481804 - Signal Appliances - Systems - For Hazardous Locations
Ex db ia IIC T4 IP44

Applicable Requirements
C22.2 No. 0-M91 General requirements - Canadian Electrical Code, Part II
C22.2 No. 60529: 2015 Degrees of protection provided by enclosures (IP Code).
C22.2 No. 610101-1: 2012 Safety requirements for electrical equipment for measurement, control,
and laboratory use - Part 1: General Requirements.
C22.2 No. 60079-0: 2015 Electrical apparatus for explosive gas atmospheres - Part 0: General
Requirements
C22.2 No. 60079-1: 2016 Explosive atmospheres - Part 1: Equipment protection by flameproof
enclosures "d".
C22.2 No. 60079-11: 2014 Electrical apparatus for explosive gas atmospheres - Part 11: Intrinsic
Safety "i".

Special Conditions For Safe Use X:

1. Field wiring must be in accordance with CEC Part 1, Section 18.
2. The enclosure must be bonded to ground according to CEC Part 1, Section 18.
3. For enclosures with metric conduit entries certified metric to NPT adaptors shall be used.
4. All unused openings must be closed using suitably certified plugs.
5. A seal shall be installed within 18" of enclosure.
6. Measures must be taken to avoid ignition due to mechanical impact.
7. IPx4 maintained only when mounted on a ceiling.

3.1 15 95-8723
 APPENDIX C
IECEx APPROVAL DESCRIPTION

U5015
IECEx FMG15.0014X
Ex db ia IIC T4 Gb
Tamb –20°C to +65°C
IP44

IEC Standards:
IEC 60079-0: 2011 Electrical apparatus for explosive atmospheres, General Requirements
IEC 60079-1: 2014 Electrical apparatus for explosive atmospheres, Flameproof enclosure "d"
IEC 60079-11: 2011 Intrinsic Safety explosive atmospheres Equip protection by Intrinsic Safety

Special Conditions For Safe Use X:

1. The U5015 is to be installed in locations where the risk of mechanical damage is low.
2. Potential electrostatic charging hazard please see instructions for proper installation.
3. All unused device openings must be closed using a suitably certified plug.
4. For field connections, use wire rated 20°C greater than maximum ambient temperature.
5. For AEx d rated Model U5015 Smoke Detector, the flameproof joints are not allowed to be
repaired per manufacturer's instruction manual.

3.1 16 95-8723
 APPENDIX D
ADDITIONAL APPROVALS

RUSSIA & KAZAKHSTAN

VNIIFTRI
CERTIFICATE OF CONFORMITY TO TP TC 012/2011
No. TC RU C-US. BH02.B.00239
1Exd[ia]IICT4 IP44
T4 (Tamb = –20°C to +65°C)

Declaration of Conformity to TP TC 020/2011 (EMC)

EAЭC No. RU д-US.PA01.B.50006

RUSSIA

VNIIPO
CERTIFICATE OF CONFORMITY TO TECHNICAL REGULATIONS, GOST R 53325-2012
C-US.цC13.B.00192

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 95-8723

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