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4131
 
 

4131

 

Universal trip amplifier

 

  • 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
  1. Overview +

  2. Technical details +

  3. Accessories +


Advanced features

  • Programmable via detachable display front (4501), 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 4501 display / programming front, 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.

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/ 4501/4511

    109 x 23.5 x 116 / 131 mm

  • Weight approx.

    170 g

  • Weight incl. 4501 / 4511 (approx.)

    185 g / 270 g

  • Wire size

    1 x 2.5 mm2 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

  • 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

    Communication enabler 4511 / Programming front 4501

  • 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)

  • Δt =

    Internal temp.-ambient temp.

  • Sensor error detection

    Yes

  • Sensor error current: When detecting / else

    Nom. 2 μA / 0 μA

  • Current input

  • Measurement range

    0...20 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 currently selected measurement range

Observed authority requirements

  • EMC

    2014/30/EU

  • LVD

    2014/35/EU

  • EAC

    TR-CU 020/2011

Approvals

  • FM

    3025177

  • UL

    UL 508 / C22.2 no. 14

  • DNV-GL Marine

    Stand. f. Certific. No. 2.4

  • EU RO Mutual Recognition Type Approval

    MRA000000Z

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