Universal trip amplifier

4131

Input for RTD, TC, Ohm, potentiometer, mA and V
2 adjustable alarm limits
FM-approved for installation in Div. 2
2 relay outputs
Universal AC or DC supply

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Advanced features

Programmable via detachable display front (PR 4500 series), process calibration, relay simulation, password protection, error diagnostics and selection of help text in several languages.

Application

Process control with 2 pairs of potential-free relay contacts which can be configured to suit any application.
Trip amplifier with window function defined by a high and a low setpoint. The relay changes state outside the window.
Relay latch function, where the relay is activated and can only be reset manually.
Sophisticated sensor error surveillance, where one relay holds the state immediately prior to the sensor error, while allowing the process to continue. The other relay can be set for sensor error alarm so that the defect sensor can be replaced immediately.

Technical characteristics

When 4131 is used with the PR 4500 display series, all operational parameters can be modified to suit any application. As the 4131 is designed with electronic hardware switches, it is not necessary to open the device for setting of DIP-switches.
A green front LED indicates normal operation and malfunction. A yellow LED is ON for each active output relay.
Continuous check of vital stored data for safety reasons.
3-port 2.3 kVAC galvanic isolation.

Data sheet & Manuals

Data sheet

4131.pdf
Latest version

Manuals

Manuals in Russian

Supplementary documentation

EU Declaration of Conformity

UKCA Declaration of Conformity

4131DoC_UKCA_100_UK.pdf
Latest version

Modbus configuration manual

EMC data

4000_EMC_data.pdf
Latest version

PR default configurations

PR_default_configurations.pdf
Latest version

Approvals & Certificates

Metrology Pattern Approval (MPA), Russia

MPA_Russia.pdf
Latest version

Environmental Conditions

Operating temperature	-20°C to +60°C
Calibration temperature	20...28°C
Relative humidity	< 95% RH (non-cond.)
Protection degree	IP20

Mechanical specifications

Dimensions (HxWxD)	109 x 23.5 x 104 mm
Dimensions (HxWxD) w/ PR 4500	109 x 23.5 x 131 mm
Weight approx.	170 g
Weight incl. 4501 / 451x (approx.)	185 g / 200 g
Wire size	0.13...2.08 mm² AWG 26...14 stranded wire
Screw terminal torque	0.5 Nm
Vibration	IEC 60068-2-6
2...13.2 Hz	±1 mm
13.2...100 Hz	±0.7 g

Common specifications

Supply
Supply voltage, universal	21.6...253 VAC, 50...60 Hz or 19.2...300 VDC
Fuse	400 mA SB / 250 VAC
Max. required power	≤ 2.0 W
Max. power dissipation	≤ 2.0 W
Isolation voltage
Isolation voltage, test / working	2.3 kVAC / 250 VAC
Response time
Temperature input (0...90%, 100...10%)	≤ 1 s
mA / V input (0...90%, 100...10%)	≤ 400 ms
Auxiliary supplies
2-w. supply (term. 44...43)	25...16 VDC / 0...20 mA
Programming	PR 4500 communication interfaces
Signal / noise ratio	Min. 60 dB (0...100 kHz)
Accuracy	Better than 0.1% of sel. range
EMC immunity influence	< ±0.5% of span
Extended EMC immunity: NAMUR NE21, A criterion, burst	< ±1% of span

Input specifications

RTD input
RTD type	Pt10/20/50/100/200/250; Pt300/400/500/1000; Ni50/100/120/1000; Cu10/20/50/100
Cable resistance per wire	50 Ω (max.)
Sensor current	Nom. 0.2 mA
Effect of sensor cable resistance (3-/4-wire)	< 0.002 Ω / Ω
Sensor error detection	Yes
Short circuit detection	< 15 Ω
Linear resistance input
Linear resistance min....max.	0 Ω...10000 Ω
Potentiometer input
Potentiometer min....max.	10 Ω...100 kΩ
TC input
Thermocouple type	B, E, J, K, L, N, R, S, T, U, W3, W5, LR
Cold junction compensation (CJC) via ext. sensor in 5910	20...28°C ≤ ±1°C, -20...20°C / 28...70°C ≤ 2°C
CJC via int. mounted sensor	±(2.0°C + 0.4°C * Δt)
Sensor error detection	Yes
Sensor error current: When detecting / else	Nom. 2 μA / 0 μA
Current input
Measurement range	0...23 mA
Programmable measurement ranges	0...20 and 4...20 mA
Input resistance	Nom. 20 Ω + PTC 50 Ω
Voltage input
Measurement range	0...12 VDC
Programmable measurement ranges	0/0.2...1, 0/1...5, 0/2...10 VDC
Input resistance	Nom. 10 MΩ

Output specifications

Relay output
Relay functions	Setpoint, Window, Sensor error, Latch, Power and Off
Hysteresis	0...100%
ON and OFF delay	0...3600 s
Max. voltage	250 VRMS
Max. current	2 AAC or 1 ADC
Max. AC power	500 VA
Sensor error reaction	Break / Make / Hold
of span	= of the presently selected range

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
EAC LVD	TR-CU 004/2011

Approvals

c UL us, UL 508	E231911
FM	3025177
DNV Marine	TAA0000101
EU RO MR Type Approval	MRA000000Z

7423

Ceramic socket for Pt100 sensor

7430B

Pt100 cable sensor

7430C

Pt100 cable sensor

7440

Thermowell for PR 7400 Pt100 sensor

4510

Display / programming front

4511

Communication enabler

4512

Bluetooth communication enabler

4590

ConfigMate

5910

CJC connector

7007

2-digit digital potentiometer

7008

3-digit digital potentiometer

7009

10-turn potentiometer, 200 Ω

7010

10-turn potentiometer, 20 kΩ

7011

Dial for 10-turn potentiometer

7012

1-turn potentiometer, 1 kΩ

7015

1-turn potentiometer, 10 kΩ

7016

1-turn potentiometer, 100 kΩ

7020

Knob for 1-turn potentiometer

7020A

Knob for 10-turn potentiometer

7028

10-turn potentiometer, 2 kΩ

8510

8 unit 4511 Modbus cable

8511

4511 Y-splitter Modbus cable

8513

RJ45 Modbus termination

8514

3 X RJ45 female Y-splitter

8515

RJ45 female to female cable adapter

8516

RJ45 female to female shielded cable adapter

8517

3 x RJ45 female shielded Y-splitter

Need support to select the right product for your application?

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Reach out by phone to get in touch with us straight away – or use the contact form or quick quote function to send your RFQ directly from the website. You’ll get a response within 24 hours on normal business days.

You can expect to get a confirmed delivery date via email within 2 days after we have received your order.

As soon as your package leaves our warehouse, you’ll receive tracking details via email. And if you have any questions along the way we’re just a phone call or email away.

State-of-the-art manufacturing

Our 8,500 sqm integrated and automated manufacturing campus in Denmark covers the entire value-chain from design and development to manufacturing. It allows us to design and optimize for testing and manufacturing thereby constantly driving quality up and costs down.

Dedicated Presale / Aftersales
Our more than 80 dedicated sales engineers can help specify the right device for your application. Backed by our 9 subsidiaries and more than 40 dedicated partners, we are directly accessible in more than 40 countries around the world.

Find a PR location close to you

Product reliability
Although we’d always like to be top of mind, we recognize our job is mainly to provide peace of mind. Install & Forget^® is our way of saying that once installed, our devices will continue to perform even in the toughest environments. And we are not afraid to back that statement up with commitments.

Product deployment
Our devices are intuitive and simple to configure. Once installed they visualize rich diagnostics data, allowing the operator to plan preventative maintenance, maximizing process up-time.

Smart products
Many of our devices are designed to accommodate current and future communication enablers, providing the operator with multifunctional capabilities that extends into the future.

Check out our range of communication interfaces

Products

Universal trip amplifier

4131

Overview + -

Technical details + -

Accessories + -

Order and delivery + -

Why choose PR + -