Isolated universal converter
Isolated universal converter
3114
– Input for RTD, TC, Ohm, potentiometer, mA and V
– Slimline housing of 6 mm
– 2-wire supply >15 V
– Output for current and voltage
– Can be supplied separately or installed on power rail, PR 9400
Application
• Linearized, 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.
• The device can be mounted in Safe area or in Zone 2 and Cl.
1 Div 2. area.
Connections
Advanced features
• 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 electronics hardware switches, it is not
necessary to open the device for setting of DIP-switches.
Technical characteristics
• A green / red front LED indicates normal operation and
malfunction.
• 3-port 2.5 kVAC galvanic isolation.
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Environmental Conditions
Specifications range.......................................
Storage temperature......................................
Calibration temperature.................................
Relative humidity............................................
Protection degree...........................................
Installation in..................................................
-25°C to +70°C
-40°C to +85°C
20...28°C
< 95% RH (non-cond.)
IP20
Pollution degree 2 &
measurement / overvoltage
cat. II
Mechanical specifications
Dimensions (HxWxD).....................................
Weight approx................................................
DIN rail type...................................................
Wire size........................................................
113 x 6.1 x 115 mm
70 g
DIN EN 60715/35 mm
0.13 x 2.5 mm2 / AWG 26...12
stranded wire
Screw terminal torque.................................... 0.5 Nm
Common specifications
Supply voltage...............................................
Fuse...............................................................
Max. power consumption...............................
Internal consumption......................................
Isolation voltage, test.....................................
Isolation voltage, working...............................
16.8...31.2 VDC
400 mA SB / 250 VAC
1.2 W
0.4 W (typ.) / 0.65 W (max.)
2.5 kVAC
300 VAC (reinforced) / 250
VAC (Zone 2, Div. 2)
Signal / noise ratio......................................... > 60 dB
Response time (0...90%, 100...10%):
Temperature input.......................................... ≤ 1 s
Response time (0...90%, 100...10%):
mA / V input.................................................... ≤ 400 ms
EMC immunity influence................................ < ±0.5% of span
Extended EMC immunity: NAMUR
NE 21, A criterion, burst................................. < ±1% of span
Programmable measurement ranges,
VDC................................................................ 0/0.2...1, 0/1...5, 0/2...10 VDC
Input resistance, voltage
input............................................................... Nom. 10 MΩ
Output specifications
Current output: Signal range......................... 0…20 mA (span)
Programmable current ranges....................... 0...20 / 4...20 / 20...0 and
20...4 mA
Load (max.).................................................... 20 mA/600 Ω/15 VDC
Load stability, current output.......................... ≤0.01% of span / 100 Ω
Sensor error indication, current
output............................................................. 0 / 3.5 / 23 mA / none
NAMUR NE 43 Upscale/Downscale.............. 23 mA / 3.5 mA
Current limit.................................................... ≤ 28 mA
Voltage output: signal range.......................... 0...10 VDC
Programmable voltage ranges....................... 0/0.2...1; 0/1...5 ; 0/2...10;
1...0.2/0; 5...1/0; 10...2/0 V
Load (min.)..................................................... > 10 kΩ
*of span.......................................................... = of the currently selected
measurement range
Approvals
EMC............................................................... EN 61326-1
LVD................................................................ EN 61010-1
ATEX.............................................................. KEMA 10ATEX0147 X
IECEx............................................................. KEM 10.0068X
FM.................................................................. 3041043-C
GOST R......................................................... Yes
DNV Marine.................................................... Stand. f. Certific. No. 2.4
GL.................................................................. V1-7-2
UL................................................................... UL 61010-1
Input specifications
3114-082714
RTD input....................................................... Pt10, Pt20, Pt50, Pt100,
Pt200, Pt250, Pt300, Pt400,
Pt500, Pt1000, Ni50, Ni100,
Ni120, Ni1000
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
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
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
2-wire transmitter supply................................ > 15 V / 20 mA
Voltage input: Measurement
range.............................................................. 0...12 VDC
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