User manual | 4131

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
Advanced features
• Programmable via detachable display front (4501), process
calibration, relay simulation, password protection, error
diagnostics and selection of help text in several languages.
Connections
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.
This page is automatically generated on the basis of information provided on www.prelectronics.com and affiliated websites. It is provided to you as a service and for information
purpose only. While we have attempted to maintain the information as accurately as possible, the page may contain errors or omissions for which we disclaim any and all liability
Environmental Conditions
Specifications range.......................................
Calibration temperature.................................
Relative humidity............................................
Protection degree...........................................
-20°C to +60°C
20...28°C
< 95% RH (non-cond.)
IP20
Mechanical specifications
Dimensions (HxWxD).....................................
Dimensions (HxWxD) w/ 4501
/ 4511.............................................................
Weight approx................................................
Weight incl. 4501 / 4511 (approx.).................
Wire size........................................................
Screw terminal torque....................................
109 x 23.5 x 104 mm
109 x 23.5 x 116 / 131 mm
170 g
185 g / 270 g
1 x 2.5 mm2 stranded wire
0.5 Nm
Common specifications
Supply voltage, universal............................... 21.6...253 VAC, 50...60 Hz or
19.2...300 VDC
Fuse............................................................... 400 mA SB / 250 VAC
Max. power consumption............................... ≤ 2.0 W
Isolation voltage, test /
working........................................................... 2.3 kVAC / 250 VAC
Communications interface............................. Programming front 4501
Communications interface............................. Modbus communication
enabler 4511
Signal / noise ratio......................................... Min. 60 dB (0...100 kHz)
Response time (0...90%, 100...10%):
Temperature input.......................................... ≤ 1 s
Response time (0...90%, 100...10%):
mA / V input.................................................... ≤ 400 ms
Accuracy........................................................ Better than 0.1% of selected
range
Auxiliary supplies: 2-wire
supply (terminal 44...43)................................ 25...16 VDC / 0...20 mA
EMC immunity influence................................ < ±0.5% of span
Extended EMC immunity: NAMUR
NE 21, A criterion, burst................................. < ±1% of span
Current input: Measurement
range.............................................................. 0...20 mA
Current input: Programmable
measurement ranges..................................... 0...20 and 4...20 mA
Input resistance, current
input............................................................... Nom. 20 Ω + PTC 50 Ω
Voltage input: Measurement
range.............................................................. 0...12 VDC
Programmable measurement ranges,
VDC................................................................ 0/0.2...1, 0/1...5, 0/2...10 VDC
Input resistance, voltage
input............................................................... 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
Approvals
EMC............................................................... EN 61326-1
LVD................................................................ EN 61010-1
FM.................................................................. 3025177
UL................................................................... UL 508
GOST R......................................................... Yes
DNV Marine.................................................... Stand. f. Certific. No. 2.4
Input specifications
4131-042214
RTD input....................................................... Pt10, Pt20, Pt50, Pt100,
Pt200, Pt250, Pt300, Pt400,
Pt500, Pt1000 Ni50, Ni100,
Ni120, Ni1000, Cu10, Cu20,
Cu50, Cu100
RTD input....................................................... Linear resistance
RTD input....................................................... Potentiometer
Cable resistance per wire
(max.), RTD.................................................... 50 Ω
Sensor current, RTD...................................... Nom. 0.2 mA
Effect of sensor cable resistance
(3-/4-wire), RTD............................................. < 0.002 Ω / Ω
Sensor error detection, RTD.......................... Yes
Short circuit detection, RTD........................... < 15 Ω
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
connector 5910.............................................. 20...28°C ≤ ±1°C, -20...20°C /
28...70°C ≤ 2°C
CJC via internally mounted
sensor............................................................ ±(2.0°C + 0.4°C * Δt)
Δt =................................................................. Internal temperature-ambient
temperature
Sensor error detection, TC............................. Yes
Sensor error current: When
detecting / else............................................... Nom. 2 μA / 0 μA

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project