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.
The 6331A can be mounted in zone 2 and zone 22 / Class I, Division 2, Groups A, B, C, D.
6331A2A
2 Items
Data sheet
Input
Cold junction compensation: Internal/external
Lin. R, measurement range / min. span: 0...5000 Ω / 30 Ω
Max. offset: 50% of selec. max. value
RTD, measurement range / min. span: -200...+850°C / 25°C
Sensor connection, wires : 2 - 3 - 4
TC types : BEJKLNRSTUW3W5Lr
mV, measurement range / min. span: -12...800 mV / 5 mV
Output
mA, signal range / min. span: 3.5...23 mA / 16 mA
Technical Specifications
Accuracy: ±0.05% of span
Ambient temperature: -40...+85°C
Channels: 1
Isolation voltage, test / operation: 1500 VAC / 50 V
Max. required power, 1 / 2 channels:0.8 W/1.6 W
NAMUR NE21, NE43
Programming: 5909
Response time: 1...60 s
Signal dynamics, input / output: 20 bit / 16 bit
Supply voltage, DC: 7.2...35 VDC
Temperature coefficient ±0.01% of span / °C
Approvals
ATEX, Zone 2: Yes
CSA, Zone 2 - DIV 2: Yes
DNV: No
EAC: Yes
FM, Zone 2 - DIV 2: No
IECEx, Zone 2: Yes
INMETRO, Zone 2: Yes
SIL 2 Full Assessment IEC 61508 :No
SIL Hardware Assessment: No
UL 61010 / 508: No
Application guide
Custom sensor linearization: Yes
Galvanically isolated: Yes
Lin. R / potentiometer input: Yes/No
Loop-powered: Yes
Mounting in Zone 2 / DIV 2: Yes/No
Process signal calibration:Yes
RTD / TC / mV input: Yes/Yes/Yes
mA output: Yes
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