PR electronics 6331A 2-wire programmable transmitter
Description
PR electronics 6331A 2-wire programmable transmitter
RTD, TC, Ohm, or mV input
Extremely high measurement accuracy
Galvanic isolation
Programmable sensor error value
1- or 2-channel version
Application
PR electronics 6331A 2-wire programmable transmitter
Linearized temperature measurement with Pt100...Pt1000, Ni100...Ni1000, or TC sensor.
Conversion of linear resistance variation to a standard analog current signal, for instance from valves or Ohmic level sensors.
Amplification of a bipolar mV signal to a standard 4...20 mA current signal.
Technical characteristics
Within a few seconds the user can program PR6331A to measure temperatures within all ranges defined by the norms.
The RTD and resistance inputs have cable compensation for 2-, 3- and 4-wire connection.
A limit can be programmed on the output signal.
Continuous check of vital stored data for safety reasons.
Mounting / installation
Mounted vertically or horizontally on a DIN rail. Using the 2-channel version, up to 84 channels can be mounted per meter.
Environmental Conditions
PR electronics 6331A 2-wire programmable transmitter
Operating temperature -40°C to +85°C
Storage temperature -40°C to +85°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
Weight (1 / 2 channels) 145 / 185 g
DIN rail type DIN EN 60715/35 mm
Wire size 0.13...2.08 mm2 AWG 26...14 stranded wire
Screw terminal torque 0.5 Nm
Common specifications
PR electronics 6331A 2-wire programmable transmitter
Supply
Supply voltage 7.2...35 VDC
Power dissipation, per channel 0.17...0.8 W
Isolation voltage
Isolation voltage, test / working 1.5 kVAC / 50 VAC
Response time
Response time (programmable) 1...60 s
Voltage drop 7.2 VDC
Warm-up time 5 min.
Programming Loop Link
Signal / noise ratio Min. 60 dB
Accuracy Better than 0.05% of selected range
EEprom error check < 3.5 s
Signal dynamics, input 20 bit
Signal dynamics, output 16 bit
Effect of supply voltage change < 0.005% of span / VDC
EMC immunity influence < ±0.5% of span
Extended EMC immunity: NAMUR NE21, A criterion, burst < ±1% of span
Input specifications
PR electronics 2-wire programmable transmitter 6331A
Common input specifications
Max. offset 50% of selected max. value
RTD input
RTD type Pt100, Ni100, lin. R
Cable resistance per wire (max.) 5 Ω
Sensor current Nom. 0.2 mA
Effect of sensor cable resistance (3-/4-wire) < 0.002 Ω / Ω
Sensor error detection Yes
TC input
Thermocouple type B, E, J, K, L, N, R, S, T, U, W3, W5, LR
Cold junction compensation (CJC) < ±1.0°C
Sensor error detection Yes
Sensor error current: When detecting / else Nom. 33 μA / 0 μA
Linear resistance input
Linear resistance min....max. 0 Ω...5000 Ω
Voltage input
Measurement range -12...800 mV
Min. measurement range (span) 5 mV
Input resistance 10 MΩ
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