2-Wire Programmable Transmitter – PR Electronics 6331A

Features

  • RTD, TC, Ohm, or mV input
  • Extremely high measurement accuracy
  • Galvanic isolation
  • Programmable sensor error value
  • 1- or 2-channel version
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Application

  • 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.

Specification

ENVIRONMENTAL CONDITIONS
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
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
Common input specifications
Max. offset 50% of selected max. value
RTD input
RTD type Pt100, Ni100, lin. R
Cable resistance per wire 5 Ω (max.)
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
OUTPUT SPECIFICATIONS
Current output
Signal range 4…20 mA
Min. signal range 16 mA
Load (@ current output) ≤ (Vsupply – 7.2) / 0.023 [Ω]
Load stability ≤ 0.01% of span / 100 Ω
Sensor error indication Programmable 3.5…23 mA
NAMUR NE43 Upscale/Downscale 23 mA / 3.5 mA
Common output specifications
Updating time 440 ms
of span = of the presently selected range
OBSERVED AUTHORITY REQUIREMENTS
EMC 2014/30/EU
EAC TR-CU 020/2011
APPROVALS
ATEX KEMA 10ATEX0005 X
IECEx DEK 14.0047 X
EAC Ex RU C-DK.HA65.B.00355/19

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PR Electronic 6331A 2-wire programmable transmitter-DpstarGroup

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