2-Wire Transmitter With HART Protocol – PR Electronics 5335A

Features

  • RTD, TC, Ohm, or mV input
  • Extremely high measurement accuracy
  • HART 5 protocol
  • Programmable sensor error value
  • For DIN form B sensor head mounting
Enquiry

Application

  • Linearized temperature measurement with Pt100…Pt1000, Ni100…Ni1000, or TC sensor.
  • Difference or average temperature measurement of 2 resistance or TC sensors.
  • 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.
  • Connection of up to 15 transmitters to a digital 2-wire signal with HART communication.

Technical characteristics

  • Within a few seconds the user can program PR5335A 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.
  • The 5335A has been designed according to strict safety requirements and is therefore suitable for application in SIL installations.
  • Continuous check of vital stored data for safety reasons.
  • Sensor error detection according to the guidelines in NAMUR NE89.

Mounting / installation

  • For DIN form B sensor head or DIN rail mounting with the PR fitting type 8421.

Specification

ENVIRONMENTAL CONDITIONS
Operating temperature -40°C to +85°C
Calibration temperature 20…28°C
Relative humidity < 95% RH (non-cond.)
Protection degree (encl./terminal) IP68 / IP00
MECHANICAL SPECIFICATIONS
Dimensions Ø 44 x 20.2 mm
Weight approx. 50 g
Wire size 1 x 1.5 mm2 stranded wire
Screw terminal torque 0.4 Nm
Vibration IEC 60068-2-6
2…25 Hz ±1.6 mm
25…100 Hz ±4 g
COMMON SPECIFICATIONS
Supply
Supply voltage 8.0…35 VDC
Isolation voltage
Isolation voltage, test / working 1.5 kVAC / 50 VAC
Response time
Response time (programmable) 1…60 s
Warm-up time 30 s
Programming Loop Link & HART
Signal / noise ratio Min. 60 dB
Accuracy Better than 0.05% of selected range
Signal dynamics, input 22 bit
Signal dynamics, output 16 bit
Effect of supply voltage change < 0.005% of span / VDC
EMC immunity influence < ±0.1% 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 (up to 50 Ω per wire is possible with reduced measurement accuracy)
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
Cold junction compensation (CJC) < ±1.0°C
Sensor error detection Yes
Sensor error current: When detecting / else Nom. 33 μA / 0 μA
Voltage input
Measurement range -800…+800 mV
Min. measurement range (span) 2.5 mV
Input resistance 10 MΩ
OUTPUT SPECIFICATIONS
Current output
Signal range 4…20 mA
Min. signal range 16 mA
Load (@ current output) ≤ (Vsupply – 8) / 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
of span = of the presently selected range
I.S. / EX MARKING
ATEX II 3 G Ex nA [ic] IIC T4…T6 Gc, II 3 G Ex ic IIC T4…T6 Gc, II 3 D Ex ic IIIC Dc
IECEx Ex nA [ic] IIC T4…T6 Gc, Ex ic IIC T4…T6 Gc, Ex ic IIIC Dc
CSA Cl. I, Div. 2, Gp. A, B, C, D T6…T4, Ex nA[ic] IIC T6…T4 Gc
INMETRO Ex nA [ic] IIC T6…T4 Gc, Ex ic IIC T6…T4 Gc, Ex ic IIIC Dc
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
DNV-GL Marine TAA0000101
ATEX KEMA 03ATEX1508 X
IECEx KEM 10.0083X
CSA 1125003
INMETRO DEKRA 18.0002X
SIL Hardware assessed for use in SIL applications

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PR Electronic 5335A 2-wire transmitter with HART protocol-DpstarGroup