Isolated Universal Converter – PR Electronics 3114

Features

  • Input for RTD, TC, Ohm, potentiometer, mA and V
  • 2-wire supply >15 V
  • I.S. approvals: FM Div. 2, ATEX Zone 2, IECEx Zone 2
  • Output for current and voltage
  • Slimline housing of 6 mm
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Advanced features

Programmable by way of detachable display front 4501 and ConfigMate 4590, process calibration, signal simulation, password protection, error diagnostics and help text available in several languages.

Applications

  • Linearised, electronic temperature measurement with RTD or TC sensor.
  • Conversion of linear resistance variation to a standard analog current / voltage signal, i.e. from solenoids and butterfly valves or linear movements with attached potentiometer.
  • Power supply and signal isolator for 2-wire transmitters.
  • Process control with standard analog output.
  • Galvanic separation of analog signals and measurement of floating signals.

Technical characteristics

  • When 3114 is used in combination with the 4501 display / programming front and ConfigMate 4590, all operational parameters can be modified to suit any application. As the 3114 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.
  • Continuous check of vital stored data for safety reasons.
  • 3-port 2.5 kVAC galvanic isolation.

Specification

ENVIRONMENTAL CONDITIONS
Operating temperature -25°C to +70°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 & meas. / overvoltage cat. II
MECHANICAL SPECIFICATIONS
Dimensions (HxWxD) 113 x 6.1 x 115 mm
Weight approx. 70 g
DIN rail type DIN EN 60715/35 mm
Wire size 0.13…2.5 mm2 / AWG 26…12 stranded wire
Screw terminal torque 0.5 Nm
Vibration IEC 60068-2-6
2…25 Hz ±1.6 mm
25…100 Hz ±4 g
COMMON SPECIFICATIONS
Supply
Supply voltage 16.8…31.2 VDC
Fuse 400 mA SB / 250 VAC
Max. required power 1.20 W
Max. power dissipation 0.65 W
Isolation voltage
Isolation voltage, test / working 2.5 kVAC / 300 VAC (reinforced)
Zone 2 / Div. 2 250 VAC
Response time
Temperature input (0…90%, 100…10%) ≤ 1 s
mA / V input (0…90%, 100…10%) ≤ 400 ms
Signal / noise ratio Min. 60 dB (0…100 kHz)
Signal dynamics, input 24 bit
Signal dynamics, output 16 bit
Programming ConfigMate 4590
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 Pt10/20/50/100/200/250/300/Pt400/500/1000; Ni50/100/120/1000
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
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…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
2-wire transmitter supply > 15 V / 20 mA
OUTPUT SPECIFICATIONS
Current output
Signal range 0…23 mA
Programmable signal ranges 0…20/4…20/20…0/20…4 mA
Load (@ current output) ≤ 600 Ω
Load stability ≤ 0.01% of span / 100 Ω
Sensor error indication 0 / 3.5 / 23 mA / none
NAMUR NE43 Upscale/Downscale 23 mA / 3.5 mA
Current limit ≤ 28 mA
Voltage output
Signal range 0…10 VDC
Programmable signal ranges 0/0.2…1; 0/1…5 ; 0/2…10; 1…0.2/0; 5…1/0; 10…2/0 V
Load (@ voltage output) ≥ 10 kΩ
of span = of the currently selected measurement range
I.S. / EX MARKING
ATEX II 3 G Ex nA IIC T4 Gc
IECEx Ex nA IIC T4 Gc
FM, US Cl. I, Div. 2, Gp. A, B, C, D T4 or Cl. I, Zone 2, AEx nA IIC T4
FM, CA Cl. I, Div. 2, Gp. A, B, C, D T4 or Cl. I, Zone 2, Ex nA IIC T4
OBSERVED AUTHORITY REQUIREMENTS
EMC 2014/30/EU
LVD 2014/35/EU
RoHS 2011/65/EU
EAC TR-CU 020/2011
EAC Ex TR-CU 012/2011
APPROVALS
ATEX KEMA 10ATEX0147 X
IECEx KEM 10.0068X
c FM us FM17US0004X / FM17CA0003X
c UL us, UL 61010-1 E314307
EAC Ex RU C-DK.HA65.B.00355/19
DNV-GL Marine TAA00001RW

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