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6331B

 

2-wire programmable transmitter

 

  • RTD, TC, Ohm, or mV input
  • Extremely high measurement accuracy
  • Galvanic isolation
  • Can be installed in Ex zone 0
  • 1- or 2-channel version

  1. Overview +

  2. Technical details +

  3. Accessories +

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 PR6331B 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 6331B can be mounted in zone 0, 1, 2 and zone 20, 21, 22 including M1 / Class I, Division 1, Groups A, B, C, D.

Data sheet

CSA certificate

EAC declaration

EAC Ex certificate

Metrology Pattern Approval (MPA)

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...30 VDC
Max. required power ≤ 0.7 W/≤ 1.4 W (1 ch./2 ch.)
Power dissipation, per channel 0.17...0.7 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
ATEX 2014/34/EU
RoHS 2011/65/EU
EAC TR-CU 020/2011
EAC Ex TR-CU 012/2011

Approvals

ATEX KEMA 06ATEX0115 X
IECEx DEK 14.0047 X
CSA 1125003
c FM us FM17US0013X
EAC Ex RU C-DK.HA65.B.00355/19
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