PERFORMANCE

MADE
SMARTER

Product manual
5725
Programmable frequency indicator

T E M P E R AT U R E   |   I . S . I N T E R FA C E S   |   CO M M U N I C AT I O N I N T E R FA C E S   |   M U LT I F U N C T I O N A L   |   I S O L AT I O N   |   D I S P L AY

No. 5725V10 4 - UK
From serial no. : 1910590 01
6 Product Pillars
to meet your every need
Individually outstanding, unrivalled in combination
With our innovative, patented technologies, we make signal conditioning smarter and simpler. Our portfolio is composed of six
product areas, where we offer a wide range of analog and digital devices covering over a thousand applications in industrial
and factory automation. All our products comply with or surpass the highest industry standards, ensuring reliability in even
the harshest of environments and have a 5-year warranty for greater peace of mind.

Our range of temperature transmitters and sensors provides the highest level of signal integrity from the
measurement point to your control system. You can convert industrial process temperature signals to analog, bus or
digital communications using a highly reliable point-to-point solution with a fast response time, automatic self-
calibration, sensor error detection, low drift, and top EMC performance in any environment.
Temperature

We deliver the safest signals by validating our products against the toughest safety standards. Through our
commitment to innovation, we have made pioneering achievements in developing I.S. interfaces with SIL 2 Full
Assessment that are both efficient and cost-effective. Our comprehensive range of analog and digital intrinsically
safe isolation barriers offers multifunctional inputs and outputs, making PR an easy-to-implement site standard.
I.S. Interface Our backplanes further simplify large installations and provide seamless integration to standard DCS systems.

We provide inexpensive, easy-to-use, future-ready communication interfaces that can access your PR installed base
of products. All the interfaces are detachable, have a built-in display for readout of process values and diagnostics,
and can be configured via push-buttons. Product specific functionality includes communication via Modbus and
Bluetooth and remote access using our PR Process Supervisor (PPS) application, available for iOS and Android.
Communication

Our unique range of single devices covering multiple applications is easily deployable as your site standard. Having
one variant that applies to a broad range of applications can reduce your installation time and training, and greatly
simplify spare parts management at your facilities. Our devices are designed for long-term signal accuracy, low
power consumption, immunity to electrical noise and simple programming.
Multifunction

Our compact, fast, high-quality 6 mm isolators are based on microprocessor technology to provide exceptional
performance and EMC-immunity for dedicated applications at a very low total cost of ownership. They can be
stacked both vertically and horizontally with no air gap separation between units required.

Isolation

Our display range is characterized by its flexibility and stability. The devices meet nearly every demand for display
readout of process signals and have universal input and power supply capabilities. They provide a real-time
measurement of your process value no matter the industry and are engineered to provide a user-friendly and reliable
relay of information, even in demanding environments.
Display
 Programmable frequency indicator

5725

Table of contents
Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Symbol identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Front and back layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Technical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Mounting / installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Sensor error indication, inside and outside range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Configuration / operating the function keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Additional features (from s/n > 121435001) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Additional features (from s/n > 181101000) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Routing diagram for 5725A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Routing diagram for 5725D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Help text overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Graphic depiction of the relay function setpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Document history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5725V104-UK 3
 Warning
This device is designed for connection to hazardous electric voltages. Ignoring this warning can result in
severe personal injury or mechanical damage.
To avoid the risk of electric shock and fire, the safety instructions of this guide must be observed and
the guidelines followed. The specifications must not be exceeded, and the device must only be applied
as described in the following.
GENERAL Prior to the commissioning of the device, this installation guide must be examined carefully.
Only qualified personnel (technicians) should install this device.
If the equipment is used in a manner not specified by the manufacturer, the protection provided by the
equipment may be impaired.

Warning
Until the device is fixed, do not connect hazardous voltages to the device. The following operations
HAZARD- should only be carried out on a disconnected device and under ESD safe conditions:
OUS Troubleshooting the device.
VOLTAGE
Repair of the device and replacement of circuit breakers must be done by PR electronics A/S only.

Symbol identification
Triangle with an exclamation mark: Read the manual before installation and commissioning of the
device in order to avoid incidents that could lead to personal injury or mechanical damage. Warning /
demand. Potentially lethal situations.

The CE mark proves the compliance of the device with the essential requirements of the EU directives.

The UKCA mark proves the compliance of the device with the essential requirements of the UK
regulations.

The double insulation symbol shows that the device is protected by double or reinforced insulation.

4 5725V104-UK
 Safety instructions
Definitions
Hazardous voltages have been defined as the ranges: 75 to 1500 Volt DC, and 50 to 1000 Volt AC.
Technicians are qualified persons educated or trained to mount, operate, and also trouble-shoot technically correct and in
accordance with safety regulations.
Operators, being familiar with the contents of this manual, adjust and operate the knobs or potentiometers during normal
operation.
Receipt and unpacking
Unpack the device without damaging it and check whether the device type corresponds to the one ordered. The packing
should always follow the device until this has been permanently mounted.
Environment
Avoid direct sun light, dust, high temperatures, mechanical vibrations and shock, and rain and heavy moisture. If necessary,
heating in excess of the stated limits for ambient temperatures should be avoided by way of ventilation.
The device must be installed in pollution degree 2 or better.
The device is designed to be safe at least under an altitude up to 2 000 m.
The device is designed for indoor use.
Mounting
Only technicians, who are familiar with the technical terms, warnings, and instructions in the manual and who are able to
follow these, should connect the device. Should there be any doubt as to the correct handling of the device, please contact
your local distributor or, alternatively,

PR electronics A/S
www.prelectronics.com

Mounting and connection of the device should comply with national legislation for mounting of electric materials, i.e. wire
cross section, protective fuse, and location.

Stranded wire should be installed with an insulation stripping length of 5 mm or via a suitable insulated terminal such as a
bootlace ferrule.

Descriptions of Input / Output and supply connections are shown in the block diagram and side label.

The following apply to fixed hazardous voltages-connected devices:

The max. size of the protective fuse is 10 A and, together with a power switch, it should be easily accessible and close
to the device. The power switch should be marked with a label indicating that it will switch off the voltage
to the device.

Year of manufacture can be taken from the first two digits in the serial number.
Calibration and adjustment
During calibration and adjustment, the measuring and connection of external voltages must be carried out according to the
specifications of this manual. The technician must use tools and instruments that are safe to use.
Normal operation
Operators are only allowed to adjust and operate devices that are safely fixed in panels, etc., thus avoiding the danger of
personal injury and damage. This means there is no electrical shock hazard, and the device is easily accessible.
Cleaning
When disconnected, the device may be cleaned with a cloth moistened with distilled water.
Liability
To the extent the instructions in this manual are not strictly observed, the custom­er cannot advance a demand against PR
electronics A/S that would otherwise exist according to the concluded sales agreement.

5725V104-UK 5
 Front and back layout

Picture 1: Front of 5725.

Picture 2: Back of 5725.

6 5725V104-UK
 Programmable frequency indicator
5725

• Measures NPN, PNP, Contact, NAMUR, SO, Tacho and TTL sensors
• Programmable frequency input span of 0.001 Hz to 50 kHz
• The 5725D has two SPDT relays and one analog output
• Easy to read 4 digit, 14 segment LED display with scrolling help text
• Universally powered by 21.5…253 VAC or 19.2… 300 VDC

Application
• The 5725 measures, scales, and displays frequency signals found in many process speed and flow rate applications.
• The indicator can measure the period of the frequency, useful for displaying the elapsed time between events.
• The 5725D has two SPDT setpoint contacts and a 0/4...20 mA output for process control.
• The installed display provides IP65 environmental sealing, and additional protection is provided by the optional 8335
splash proof cover.
Technical characteristics
• 4 digit display w/13.8 mm high, 14 segment LED digits and adjustable decimal point.
• Indicator is scalable from -1999 to 9999
• Scrolling help text makes programming easy.
• Built-in excitation source for measuring NPN, PNP, NAMUR and SO sensors.
• Fast response time of 1 cycle + 100 ms, and excellent accuracy of better than 0.05% of selected range.
• The analog output current on the 5725D can be dampened from 0.1 to 60 seconds, and can handle up to 800 Ohms loop
load.
• The 5725 meets NAMUR NE21 recommendations, for high performance in harsh EMC environments.
• 2.3 kVAC galvanic isolation between input, output and supply.
• Excellent signal/noise ratio of > 60 dB.
Mounting / installation
• Easy to mount 1/8 DIN (48 x 96 mm) panel meter with IP65, (type 4X) sealing.
• Approved for marine applications.
• Fully push-button programmable.
• Password protected.

5725V104-UK 7
 Applications

Input signals:

44 + Supply 5...17 V

∼ S0 + Supply + Supply
43 + Input

∼
1 2

TTL 42 Tacho

∼
41 Input gnd

Special trig TTL S0 NAMUR PNP NPN Contact Tacho

current & voltage (NPN)

Output signals:

26

25 Relay 2

24

1 2
12 23
+
22 Relay 1
-
11 21

Analog, 0/4...20 mA

Supply:

32

21.6...253 VAC
or 1 2
19.2...300 VDC
31

8 5725V104-UK
Order

Type Version

5725 Standard :A
Analog output and 2 relays :D

Accessories

8335 = Splash proof cover

Electrical specifications

Environmental conditions:
Operating temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20°C to +60°C
Storage temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
Calibration temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20...28°C
Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 95% RH (non-cond.)
Protection degree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IP20
Installation in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pollution degree 2 & overvoltage category II.
Mechanical specifications:
Dimensions (HxWxD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 x 96 x 120 mm
Cutout dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44.5 x 91.5 mm
Protection degree (mounted in panel) . . . . . . . . . . . . . . . . . . . . . . IP65 / Type 4X, UL50E
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230 g
Wire size, pin 11-12 & 41-44, max. . . . . . . . . . . . . . . . . . . . . . . . . 1 x 1.5 mm2 / AWG 30...16 stranded wire
Wire size, others, max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 x 2.5 mm2 / AWG 30...12 stranded wire
Terminal connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Spring-cage
Vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IEC 60068-2-6
2...13.2 Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±1 mm
13.2...100 Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.7 g
Common electrical specifications:
Supply voltage, universal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21.6...253 VAC, 50...60 Hz
or 19.2...300 VDC
Max. required power, 5725A / 5725D . . . . . . . . . . . . . . . . . . . . . . . 2.8 W / 3.6 W
Isolation voltage, test / operation . . . . . . . . . . . . . . . . . . . . . . . . . 2.3 kVAC / 250 VAC
Signal / noise ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 60 dB
Input specifications:
Frequency range, f/I conversion function . . . . . . . . . . . . . . . . . . . . 0.001 Hz to 50 kHz
Low cut off frequency (default value) . . . . . . . . . . . . . . . . . . . . . . . 0.0009 Hz
Low cut off frequency, (LCOF=YES) . . . . . . . . . . . . . . . . . . . . . . . . 0.5 Hz (2 s)
Max. frequency, with input filter ON . . . . . . . . . . . . . . . . . . . . . . . 50 Hz
Time range, period time function . . . . . . . . . . . . . . . . . . . . . . . . . 999.9 s to 20 µs
Low cut off period time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1111 s
Min. period time with input filter ON . . . . . . . . . . . . . . . . . . . . . . . 20 ms
Response time (0...90%, 100...10%) . . . . . . . . . . . . . . . . . . . . . . . . < 1 period + 100 ms

Accuracy values

Specification Absolute accuracy Temperature coefficient

Input to Display & Relays ≤ ±0.05%

≤ ±0.01% / °C
Input to Analog Output ≤ ±0.1%

EMC - immunity influence . . . . . . . . . . . . . . . . . . . . . . . . < ±0.5% of span

Extended EMC immunity:
NAMUR NE 21, A criterion, burst . . . . . . . . . . . . . . . . . . . . < ±1% of span

5725V104-UK 9
Input types:
NAMUR input - acc. to EN 60947-5-6:
Trig-level LOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 1.2 mA
Trig-level HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≥ 2.1 mA
Input impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 kΩ || < 1.5 nF
Breakage detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 0.1 mA
Short-circuit detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≥ 6.9 mA
Sensor supply - pin 44, fixed . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.3 V
Tacho input:
Trig-level LOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ - 50 mV
Trig-level HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≥ + 50 mV
Input impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≥ 100 kΩ || < 1.5 nF
Max. input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 VAC pp
Sensor supply - pin 44, programmable . . . . . . . . . . . . . . . . . . . . . . 5...17 V / 20 mA
NPN / PNP input:
Trig-level LOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 4.0 V
Trig-level HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≥ 7.0 V
Input impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.48 kΩ || < 1.5 nF
Sensor supply - pin 44, programmable . . . . . . . . . . . . . . . . . . . . . . 5...17 V / 20 mA
TTL input:
Trig-level LOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 0.8 VDC
Trig-level HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≥ 2.0 VDC
Input impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≥ 100 kΩ || < 1.5 nF
Sensor supply - pin 44, programmable . . . . . . . . . . . . . . . . . . . . . . 5...17 V / 20 mA
S0 input acc. to DIN 43864:
Trig-level LOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 2.2 mA
Trig-level HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≥ 9.0 mA
Input impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 758 Ω || < 1.5 nF
Sensor supply - pin 44, fixed . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 V
Special voltage input:
User programmable trig-levels . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.05...6.50 V
Hysteresis, min . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mV
Input impedance, selectable:
High Z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≥100 kΩ || < 1.5 nF
Pull up and pull down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.48 kΩ || < 1.5 nF
Sensor supply - pin 44, programmable . . . . . . . . . . . . . . . . . . . . . . 5...17 V / 20 mA
Special current input:
User programmable trig-levels . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.0...10.0 mA
Hysteresis, min . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.2 mA
Input impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 kΩ || < 1.5 nF
Sensor supply - pin 44, programmable . . . . . . . . . . . . . . . . . . . . . . 5...17 V / 20 mA
Output specifications:
Display:
Display readout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -1999...9999 (4 digits)
Decimal point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Programmable
Digit height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.8 mm
Display updating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.2 times / s
Display response time, programmable . . . . . . . . . . . . . . . . . . . . . . 0.0...60.0 s
Input frequency outside range and
NAMUR input sensor error is indicated by . . . . . . . . . . . . . . . . . . . . Explanatory text

10 5725V104-UK
 Current output (5725D):
Programmable signal ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0...20, 4...20 & 20...0, 20...4 mA
Load (max.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 800 Ω
Current limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 28 mA
Load stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 0.01% of span / 100 Ω
Programmable response time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1...60.0 s
Sensor error indication, at NAMUR input:
selectable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 / 3.5 / 23 mA / none
Output limitation at outside range:
on 4...20 and 20...4 mA signals . . . . . . . . . . . . . . . . . . . . . . . . . . 3.8...20.5 mA
on 0...20 and 20...0 mA signals . . . . . . . . . . . . . . . . . . . . . . . . . . 0...20.5 mA
Relay outputs (5725D):
Relay function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Setpoint
Hysteresis, in % / display counts . . . . . . . . . . . . . . . . . . . . . . . . . . 0...100% / 0...9999
On and Off delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0...3600 s
Power On delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.0...60.0 s
Sensor error action . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Make / Break / Hold
Max. voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 VAC / VDC
Max. AC current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2A
Max. AC power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 VA
Max. DC current, resistive load:
@ Urelay ≤ 30 VDC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 ADC
-2 U
@ Urelay >30 VDC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [1380 x Urelay x 1.0085 relay] ADC
-2 Urelay
Graphic depiction of [1380 x Urelay x 1.0085 ]:

3.00 A

2.00 A

1.00
1,00 A
A

0.80 A
Current
CURRENT

0.60 A

0.40 A

0.20 A

0.10
0,10 A
A
00 VV 50
50 VV 100
100 VV 150
150 VV 200
200 VV 250
250 VV

Urelay
URELAY

Observed authority requirements

EMC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2014/30/EU & UK SI 2016/1091
LVD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2014/35/EU & UK SI 2016/1101
RoHS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2011/65/EU & UK SI 2012/3032
EAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TR-CU 020/2011
Approvals
EU RO Mutual Recognition Type Approval . . . . . . . . . . . . . . . . . . . . MRA000000Z
c UL us, UL 508 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E248256

5725V104-UK 11
 Sensor error indication, inside and outside range

Sensor error indication in 5725, only available for NAMUR input

Relay Analog Display
Condition Out of range limit
behaviour output value redaout
Set to user
Sensor input type = > 6.9 mA Set to user-defined value ”SE.SH”
defined value:
NAMUR and sensor (23, 0, 3.5 mA
HOLD. ACTIVE. DEACTIVE
error detection = ON < 0.1 mA or NONE) ”SE.BR”
or NONE

Input ”out of range” indication

Valid measurement range: Out of range limit Display readout
< 0.0009 Hz (18 min. 31 sec.) If In.Lo is set to 0.000 Hz:
or ”0.0”
f to I function: 0.5 Hz (2.0 s) if L.COF=YES If In.Lo is set ≥ 0.001 Hz:
0.001 Hz to 50 kHz (Low cut-off frequency) ”IN.LO” - flashing
> 50.5 kHz ”IN.HI” - flashing
> 1111 s (18 min. 31 sec.)
Period time function: ”IN.HI” - flashing
(Low cut off time)
20 µs to 999.9 s
< 19.8 µs ”IN.LO” - flashing

Display out of range Indication

Valid display value range: Out of range limit Display readout
< -1999 ”-1.9.9.9.” - flashing
-1999 to 9999
> 9999 ”9.9.9.9.” - flashing

Hardware error indication

Error explanation Error cause Display readout
Error in internal communication Permanent error in intercommunication
”HW.ER” - flashing
(SPI etc.) between microcontrollers
Error in checksum test of the
Error in RAM ”RA.ER”- flashing
configuration in RAM
Error in checksum test of the
Error in EEPROM ”EE.ER”- flashing
configuration in EEPROM
Error in OK check or checksum Error in FLASH or
test of the calibration data in Calibration has not been performed or ”NO.CA”- flashing
FLASH Calibration data in FLASH are corrupt

! Error indications in the display blink once a second. The help text explains the error.

12 5725V104-UK
 Connections

Supply:
31 32

Input:
Special current Special voltage Tacho
41 42 43 44 45 46 41 42 43 44 45 46 41 42 43 44 45 46

+ + supply 5...17 V + + supply 5...17 V

∼
PNP NPN Contact (NPN)
41 42 43 44 45 46 41 42 43 44 45 46 41 42 43 44 45 46

+ supply 5...17 V + supply 5...17 V

+ supply + supply

NAMUR S0 TTL
41 42 43 44 45 46 41 42 43 44 45 46 41 42 43 44 45 46

+ supply 8.3 V + supply 17 V +

S0 TTL

Output:
Current Relays
11 12 21 22 23 24 25 26

- mA + R1 R2

5725V104-UK 13
 Block diagram

44 32 Supply
VREG 21.6...253 VAC
5...17 V or
19.2...300 VDC
31
Supply

Option D 12 I+
46
45
mA
11 Gnd.
I
Output
43

CPU
1 2 3 4

Freq.
detector Option D 21 Common
22 Relay 1 N.O.
fin
R1 Relay 1 N.C.
23
42

EEPROM 24 Common
25 Relay 2 N.O.
R2 Relay 2 N.C.
26

41
5725A & D

14 5725V104-UK
 Configuration / operating the function keys
Documentation for routing diagram.
In general
When configuring the 5725, you will be guided through all parameters and you can choose the settings which fit the
application. For each menu there is a scrolling help text which is automatically shown in the display if no key has been
activated for appr. 5 seconds.

Configuration is carried out by use of the 3 function keys:

1 will increase the numerical value or choose the next parameter
2 will decrease the numerical value or choose the previous parameter
3 will save the chosen value and proceed to the next menu

If a function does not exist in the hardware, all parametres belonging to that function will be skipped in order to make
configuration as simple as possible. The configuration will not be saved until the end of the menu structure when the display
shows - - - -.

Pressing and holding 3 will return to the previous menu or return to the default state ("Monitor") without saving the changed
values or parameters.

If no key is activated for 2 minutes, the display will return to the default state ("Monitor") without saving the changed values
or parameters.

Further explanations
Fast setpoint adjustment and relay test (only 5725D)
These menus are interactive and allow you to adjust the setpoints while the display is measuring the input signal. The front
LEDs will then indicate when the relays change state, thus easing the setpoint adjustment in many situations. By activating 1
and 2 simultaneously, a relay test will be initiated and the relay will change state. The setpoint adjustment will be saved by a
quick press of 3 . Holding down 3 for more that 0.5 seconds will return the display to the default state (”Monitor”) without
changing the setpoint.

Password protection
Using a password will block access to the menu and parameters.
If the configured password is not known, please contact PR electronics support - www.prelectronics.com/contact.

5725D only: There are two levels of password protection.

Passwords between 0000 and 4999 allow access to the fast setpoint adjustment and relay test menus (using this password
blocks access to all other parts of the menu).
Passwords between 5000 and 9999 block access to all parts of the menu, fast setpoint and relay test (current setpoint is still
shown).

Additional features (from s/n > 121435001)

Out of range indication at f/I function

Out of range min. limit is < 0.0009 Hz / (18 min. 31 sec.).
- if the In.Lo value is set to ”0.0” Hz the display readout will be ”0.0” when the ”out of range” min. limit is reached.
- if the In.Lo value is set different from ”0.0” Hz the display readout will be ”In.Lo” - flashing - when the ”out of range” min.
limit is reached.
Low cut-off filter
The 5725 frequency indicator has a selectable low cut-off filter, which sets the display and output to 0% when the measured
frequency is ≤ 0.5 Hz (2 s). This filter allows the display to ignore extremely low frequencies from flowmeters and encoders
which are sometimes present when the process is at idle.
Faster analog output
The analog output response time can be adjusted to a fast 0.1 second, allowing the analog output to track faster changing
input signals.

5725V104-UK 15
Additional features (from s/n > 181101000)

Programmable display response time

The response time of the 5725 display readout can be configured independently of the analog output response time.
This feature ensures a stable and easy readout of unstable or jittering input signals.

16 5725V104-UK
 Routing diagram for 5725A
If no key is activated for 2 minutes, the display will return to the default state "Monitor" without saving configuration
changes.
1 Increase value / choose next parameter
2 Decrease value / choose previous parameter
3 Save the chosen value and proceed to the next menu
Hold 3 Back to previous menu / return to default state "Monitor" without saving.

Power up
"Start"


∼ 3 sec.
"Monitor"

10.00 3 *1 Only displayed if password is enabled (E.PASS = YES).

Hold 3
*1

LANG PASS IN TR.LO TR.HI Z.IN S.SUP

T 07 T 21 T 2229 TXT 31 TXT 33 T 3436 TXT 37
12 12 12 12 12 12 12
CZ 0000  3 0.05 0.00 HI.Z 5.0
ES 3 3 3 3 3
9999 6.45 6.50 PLUP 17.0
IT PLDN
SE
FR mA 3 TR.LO TR.HI
DE TXT 31 TXT 33
DK
12 12
UK
TACH 3 0.0 0.2
3 3 3
TTL 3 9.80 10..0
"Start" NPN 3
PNP 3
S0 3
NAMUR 3

5725V104-UK 17
 *1 Only displayed if password is enabled (E.PASS = YES). *9 Minimum IN.HI value is automatically limited to 1 display
count above IN.LO.
*4 Displays either Hz/kHz or s/ms for 1 sec. before actual value
is displayed. *10 Out of range limit is < 0.0009 Hz (18 min. 31 sec.) when
When value hits digit-limit while scrolling, either Hz/kHz or L.COF = NO.
s/ms is displayed again for 1 sec. to show the user that the Out of range limit is 0.5 Hz (2 sec.) when L.COF = YES.
new range is active.

*5 Only visible if max. (IN.LO,IN.HI) value is ≤ 50 Hz (f/I)

or ≥ 20 ms (period time) Default if visible = YES, else
deactivated.

*4 *9 *10

IN.UN IN.LO IN.HI L.COF

T 38/39 HZ/KHZ HZ/KHZ T 47A
12 TXT 40/41 TXT 44/45 12
12 12
NO
0.000 0.001 YES
HZ 3 3
50.0
49.99

S 3 IN.LO 3 IN.HI
mS/S mS/S
TXT 42/43 TXT 46/47
12 12
0.020 0.021
3
999.8 999.9

*5

FILT DEC.P DI.LO DI.HI DI.RP

TXT 48 TXT 49 T 50 TXT 51 TXT 51A
12 12 12 12 12
NO 1111 1999 1999 0.0
3 3 3 3 3
YES 111.1 9999 9999 60.0
11.11
1.111

E.PAS
TXT 77
12 "Start"

NO 3

YES 3

*1

N.PAS
TXT 78
12 "Start"

0 3
9999

18 5725V104-UK
 Routing diagram for 5725D
If no key is activated for 2 minutes, the display will return to the default state "Monitor" without saving configuration
changes.
1 Increase value / choose next parameter
2 Decrease value / choose previous parameter
3 Save the chosen value and proceed to the next menu
Hold 3 Back to previous menu / return to default state "Monitor" without saving.

Power up
Fast setpoint adjustment and relay test
"Start" 1 Increase setpoint
*3
2 Decrease setpoint
 F.SET SETP
T 18 T 19/20
3 Save and exit the menu
∼ 3 sec.
12 12 If RELU If RELU 1 and 2 simultaneously = change relay
"Monitor" = PERC = DISP state.
REL1 3 12 12
10.00 3 REL2
0.0 1999
3 3
100.0 9999
"Start" "Start"
Hold 3

*1

LANG PASS IN TR.LO TR.HI Z.IN S.SUP

T 07 T 21 T 2229 TXT 31 TXT 33 T 3436 TXT 37
12 12 12 12 12 12 12
CZ 0000  3 0.05 0.00 HI.Z 5.0
ES 3 3 3 3 3
9999 6.45 6.50 PLUP 17.0
IT PLDN
SE
FR mA 3 TR.LO TR.HI
DE TXT 31 TXT 33
DK
12 12
UK
TACH 3 0.0 0.2
3 3 3
TTL 3 9.80 10..0
"Start" NPN 3
PNP 3
S0 3
NAMUR 3

Same procedure
*2 for REL2 *7

RELU REL1 SETP ACT1 HYS1 ERR1

TXT 52/53 TXT 5456 TXT 57 TXT 58/59 T 60 TXT 37
12 TXT 6769 12 12 12 12
12 If RELU
PERC = PERC 0.0 INCR 0.0 HOLD
3 SKIP 3 3 3 3 ACTI 3
DISP 100.0 DECR 100.0
DEAC
NONE
*6

SET 3 If RELU SETP ACT1 HYS1

= DISP
TXT 57 TXT 58/59 T 60
12 12 12
1999 INCR 0
3 3 3
9999 DECR 9999

OFF 3

5725V104-UK 19
 *1 Only displayed if password is enabled (E.PASS = YES). *6 Range depends on selected display scaling.

*2 5725D only. *7 Only visible for NAMUR input.

0mA only visible for A.OUT = 020 or 200
3.5mA only visible for A.OUT = 420 or 204
*3 Password 5000...9999:
FastSet and Relay Test features disabled.
(FastSet menus show the actual setpoints). *1.4
*8 Not visible if both relay functions are OFF.

*4 Displays either Hz/kHz or s/ms for 1 sec. before actual value *9 Minimum IN.HI value is automatically limited to 1 display
is displayed. count above IN.LO.
When value hits digit-limit while scrolling, either Hz/kHz or
s/ms is displayed again for 1 sec. to show the user that the
new range is active. *10 Out of range limit is < 0.0009 Hz (18 min. 31 sec.) when
L.COF = NO.
Out of range limit is 0.5 Hz (2 sec.) when L.COF = YES.
*5 Only visible if max. (IN.LO,IN.HI) value is ≤ 50 Hz (f/I)
or ≥ 20 ms (period time) Default if visible = YES, else
deactivated.

*4 *9 *10

IN.UN IN.LO IN.HI L.COF

TT 38/39 HZ/KHZ HZ/KHZ TT 47A
12 TT 40/41 TT 44/45 12
12 12
NO
0.000 YES
HZ 3 3
1.832
49.99

S 3 IN.LO 3 IN.HI
mS/S mS/S
TT 42/43 TT 46/47
12 12
0.020 0.021
3
999.8 999.9

*5

FILT DEC.P DI.LO DI.HI DI.RP

TT 48 TT 49 TT 50 TT 51 TT 51A
12 12 12 12 12
NO 3 1111 1 0.0
3 3 3 3
YES 111.1 5500 60.0
11.11
1.111
Same procedure
for REL2 *8 *7

ON.DE OF.DE PO.DE A.OUT O.ERR RESP E.PAS

TT 65 TT 66 TT 70 TT 71 TT 7275 TT 76 TT 77
12 12 12 12 12 12 12 "Start"
0 0 0 020 NONE
3 3 3 NO 3
3600 3600 60 420 3 0mA 3 2.0
200 3.5mA
YES 3
204 23mA
*1 *3

N.PAS
TT 78
12 "Start"

0 3
9999

20 5725V104-UK
 Help text overview
Top line Scrolling text TXT NO Top line Scrolling text TXT NO
Language menu XmA SPECIAL CURRENT SENSOR INPUT 28
UK UK - SELECT ENGLISH HELP TEXT 0 XV SPECIAL VOLTAGE SENSOR INPUT 29
DK DK - VAELG DANSK HJAELPETEKST 1
DE DE - WAEHLE DEUTSCHEN HILFETEXT 2 TR.LO (when special voltage input is selected)
FR - SELECTION TEXTE D’AIDE EN xxxx SET LOW TRIGGER LEVEL IN VOLT 30
FR 3
FRANCAIS
SE SE - VALJ SVENSK HJALPTEXT 4 TR.LO (when special current input is selected)
IT - SELEZIONARE TESTI DI AIUTO
IT 5 xxxx SET LOW TRIGGER LEVEL IN mA 31
ITALIANI
ES - SELECCIONAR TEXTO DE AYUDA EN
ES 6 TR.HI (when special voltage input is selected)
ESPANOL
CZ CZ - VYBER CESKOU NAPOVEDU 7 xxxx SET HIGH TRIGGER LEVEL IN VOLT 32

Error indication
(when active, labels are flashing @ appr. 1 Hz) TR.HI (when special current input is selected)
SE.BR SENSOR WIRE BREAKAGE 8 xxxx SET HIGH TRIGGER LEVEL IN mA 33
IN.HI INPUT OVERRANGE 9
SE.SH SENSOR SHORT CIRCUIT 10 Z.IN (when special voltage input is selected)
IN.LO INPUT UNDERRANGE 11 HI.Z SET INPUT RESISTANCE HIGH 34
9.9.9.9. DISPLAY OVERRANGE 12 PL.UP SET INPUT PULL UP 35
-1.9.9.9. DISPLAY UNDERRANGE 13 PL.DN SET INPUT PULL DOWN 36
HW.ER HARDWARE ERROR 14
EEPROM ERROR - CHECK (not when NAMUR or S0 input is
EE.ER 15 S.SUP
CONFIGURATION selected)
RA.ER RAM MEMORY ERROR 16 xxxx SET SENSOR SUPPLY VOLTAGE 37
NO.CA DEVICE NOT CALIBRATED 17
IN.UN
FastSet menu HZ SET INPUT UNIT FOR FREQUENCY 38
F.SET S SET INPUT UNIT FOR PERIOD TIME 39
REL1 FAST SET MENU - SELECT RELAY 18
REL2 FAST SET MENU - SELECT RELAY 18 IN.LO
xxxx SET INPUT RANGE LOW IN HZ 40
SETP (if fastset is enabled) xxxx SET INPUT RANGE LOW IN KHZ 41
xxxx RELAY SETPOINT - PRESS OK TO SAVE 19 xxxx SET INPUT RANGE LOW IN S 42
xxxx SET INPUT RANGE LOW IN mS 43
SETP (if fastset is disabled)
xxxx RELAY SETPOINT - READ ONLY 20 IN.HI
xxxx SET INPUT RANGE HIGH IN HZ 44
Configuration setup xxxx SET INPUT RANGE HIGH IN KHZ 45
PASS xxxx SET INPUT RANGE HIGH IN S 46
xxxx SET CORRECT PASSWORD 21 xxxx SET INPUT RANGE HIGH IN mS 47

IN L.COF
PNP PNP SENSOR INPUT 22 NO ENABLE LOW CUT OFF 47A
NPN NPN SENSOR INPUT 23 YES ENABLE LOW CUT OFF 47A
TTL TTL SENSOR INPUT 24
NAMU NAMUR SENSOR INPUT 25 FILT
S0 S0 SENSOR INPUT 26 NO ENABLE INPUT FILTER 48
TACH TACHO SENSOR INPUT 27 YES ENABLE INPUT FILTER 48

5725V104-UK 21
Top line Scrolling text TXT NO Top line Scrolling text TXT NO
DEC.P SETP
1111 DECIMAL POINT POSITION 49 xxxx RELAY SETPOINT 57
111.1 DECIMAL POINT POSITION 49
11.11 DECIMAL POINT POSITION 49 ACT2
1.111 DECIMAL POINT POSITION 49 INCR ACTIVATE AT INCREASING SIGNAL 58
DECR ACTIVATE AT DECREASING SIGNAL 59
DI.LO
xxxx DISPLAY READOUT LOW 50 HYS2
xxxx RELAY HYSTERESIS 60
DI.HI
xxxx DISPLAY READOUT HIGH 51 ERR2
xxxx DISPLAY RESPONSE TIME IN SECONDS 51A HOLD HOLD RELAY AT ERROR 61
ACTI ACTIVATE RELAY AT ERROR 62
REL.U DEAC DEACTIVATE RELAY AT ERROR 63
PERC SET RELAY IN PERCENTAGE 52 NONE UNDEFINED STATUS AT ERROR 64
DISP SET RELAY IN DISPLAY UNITS 53
ON.DE
REL1 xxxx RELAY ON-DELAY IN SECONDS 65
OFF RELAY 1 DISABLED 54
SETP ENTER RELAY 1 SETUP 55 OF.DE
SKIP SKIP RELAY 1 SETUP 56 xxxx RELAY OFF-DELAY IN SECONDS 66

SETP PO.DE
xxxx RELAY SETPOINT 57 xxxx RELAY POWER ON DELAY IN SECONDS 70

ACT1 A.OUT
INCR ACTIVATE AT INCREASING SIGNAL 58 20-4 OUTPUT RANGE IN mA 71
DECR ACTIVATE AT DECREASING SIGNAL 59 20-0 OUTPUT RANGE IN mA 71
4-20 OUTPUT RANGE IN mA 71
HYS1 0-20 OUTPUT RANGE IN mA 71
xxxx RELAY HYSTERESIS 60
O.ERR
ERR1 23mA NAMUR NE43 UPSCALE AT ERROR 72
HOLD HOLD RELAY AT ERROR 61 3.5mA NAMUR NE43 DOWNSCALE AT ERROR 73
ACTI ACTIVATE RELAY AT ERROR 62 0mA DOWNSCALE AT ERROR 74
DEAC DEACTIVATE RELAY AT ERROR 63 NONE UNDEFINED OUTPUT AT ERROR 75
NONE UNDEFINED STATUS AT ERROR 64
RESP
ON.DE ANALOG OUTPUT RESPONSE TIME IN
xxxx 76
xxxx RELAY ON-DELAY IN SECONDS 65 SECONDS

OF.DE E.PAS
xxxx RELAY OFF-DELAY IN SECONDS 66 NO ENABLE PASSWORD PROTECTION 77
YES ENABLE PASSWORD PROTECTION 77
REL2
OFF RELAY 2 DISABLED 67 N.PAS (when password enabled)
SETP ENTER RELAY 2 SETUP 68 xxxx SELECT NEW PASSWORD 78
SKIP SKIP RELAY 2 SETUP 69

22 5725V104-UK
 Graphic depiction of the relay function setpoint
Relay units Relay units

100 100

90 90

80 80

70 70
Hysteresis = 10
60 60
Setpoint = 50 Setpoint = 50
50 50
Hysteresis = 10
40 40

30 30

20 Off N.O. On N.O. Off N.O. 20 Off N.O. On N.O. Off N.O.

10
On N.C. Off N.C. On N.C. 10 On N.C. Off N.C. On N.C.
t
t
0 10 20 30 40 50 60 70 80 90 100 0 10 20 30 40 50 60 70 80 90 100
Relay action: Increasing Relay action: Decreasing

5725V104-UK 23
 Installation instructions
UL installation requirements
For use on a flat surface of a type 1 enclosure
Use 60/75°C copper conducters only
Enclosure rating (face only) acc. to UL50E . . . . . . . . . . . . . . . . . . . . Type 4X
Max. ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60°C
Max. wire size, pins 41...46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AWG 30-16
Max. wire size, others . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AWG 30-12
UL file number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E248256
Relay outputs:
Max. voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 VRMS
Max. current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 A / AC
Max. AC power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 VA
Max. current at 24 VDC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1A

24 5725V104-UK
 Document history
The following list provides notes concerning revisions of this document.
Rev. ID Date Notes
103 1802 Relay data updated, graph with resistive loads
inserted.
Menu updated with display response time
EU RO approval added.
104 2208 UKCA approval added.

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