2-Wire HART 7 Temperature Transmitter – PR Electronics 5437B

Features

  • RTD, TC, potentiometer, linear resistance and bipolar mV input
  • Single or true dual inputs with sensor redundancy and drift detection
  • Wide ambient operating temperature of -50 to +85°C
  • Total accuracy from 0.014%
  • 2.5 kVAC galvanic isolation
  • Full assessment to IEC61508 : 2010 up to SIL 2/3
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Application

  • Temperature measurement of a wide range of TC and RTD types.
  • Conversion of wide span linear resistance and potentiometer inputs.
  • Conversion of bipolar mV signals to 4…20 mA.
  • Integration into asset management schemes.
  • Critical applications requiring superior accuracy and/or sensor redundancy and drift detection.

Technical characteristics

  • True dual input transmitter. High density 7-terminal design accepts the widest range of dual input combinations.
  • Sensor redundancy – output automatically switches to secondary sensor in event of primary sensor failure, maintaining uptime.
  • Sensor drift detection – alerts when sensor differential exceeds user-defined limits, for maintenance optimization.
  • Dynamic variable mapping for process data in addition to the primary variable e.g. dual input features such as average, differential and min./max. tracking.
  • Groundbreaking digital and analog signal accuracy over full input span and ambient conditions.
  • Extensive sensor matching including Callendar Van Dusen and custom linearizations.
  • Programmable input limits with runtime metering ensure maximum process traceability and sensor out of range protection.
  • IEC 61508 : 2010 full assessment up to SIL 3 together with enhanced EMC Functional Safety testing to IEC 61236-3-1.
  • Meets NAMUR NE21, NE43, NE44, NE89, NE95 and NE107 compliant diagnostics information.

Mounting / installation

  • For DIN form B sensor head mounting.
  • Configuration via standard HART communication interfaces or by PR 5909 Loop Link.
  • The 5437B can be mounted in zone 0, 1, 2 and zone 20, 21, 22 including M1.

Specification

ENVIRONMENTAL CONDITIONS
Operating temperature -50°C to +85°C (standard) -40°C to +80°C (SIL)
Storage temperature -50°C to +85°C
Calibration temperature 23…25°C
Relative humidity < 99% RH (non-cond.)
Protection degree (encl./terminal) IP68 / IP00
MECHANICAL SPECIFICATIONS
Dimensions Ø 44 x 20.2 mm
Center hole diameter Ø 6.35 mm / ¼ in
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 7.5*…30** VDC
Internal power dissipation ≤ 850 mW
Additional min. supply voltage when using test terminals 0.8 V
Min. load resistance at >37 V supply (Vsupply – 37) / 23 mA
Isolation voltage
Isolation voltage, test / working 2.5 kVAC / 42 VAC
Response time
Response time 70 ms
Programmable damping 0…60 s
Polarity protection All inputs and outputs
Warm-up time < 5 min.
Start-up time < 2.75 s
Programming Loop Link & HART
Write protection Jumper or software
Signal / noise ratio > 60 dB
Long-term stability, better than ±0.05% of span / year (±0.18% of span / 5 years)
Signal dynamics, input 24 bit
Signal dynamics, output 18 bit
Effect of supply voltage change < 0.005% of span / VDC
Accuracy See manual for details
EMC immunity influence < ±0.1% of span
Extended EMC immunity: NAMUR NE21, A criterion, burst < ±1%
INPUT SPECIFICATIONS
RTD input
RTD type Pt10…10000, Ni10…10000, Cu5…1000
Cable resistance per wire 50 Ω (max.)
Effect of sensor cable resistance (3-/4-wire) < 0.002 Ω / Ω
Sensor current < 0.15 mA
Sensor error detection None, Shorted, Broken, Shorted or Broken
TC input
Thermocouple type B, E, J, K, L, N, R, S, T, U, W3, W5, LR
Cold junction compensation (CJC) Constant, internal or external via a Pt100 or Ni100 sensor
Sensor error detection None, Shorted, Broken, Shorted or Broken
Linear resistance input
Measurement range / min. range (span) 0 Ω…100 kΩ / 25 Ω
Cable resistance per wire (max.) 50 Ω
Sensor current < 0.15 mA
Sensor error detection None, Broken
Potentiometer input
Potentiometer min….max. 10 Ω…100 kΩ
Measurement range / min. range (span) 0…100% / 10%
Cable resistance per wire (max.) 50 Ω
Sensor current < 0.15 mA
Sensor error detection None, Shorted, Broken, Shorted or Broken
mV input
Measurement range -800…+800 mV (bipolar) -100 to 1700 mV
Min. measurement range (span) 2.5 mV
Input resistance 10 MΩ
Sensor error detection None, Broken
OUTPUT SPECIFICATIONS
Common output specifications
Normal range, programmable 3.8…20.5 / 20.5…3.8 mA
Extended range (output limits), programmable 3.5…23 / 23…3.5 mA
Updating time 10 ms
Load (@ current output) ≤ (Vsupply -7.5)/0.023 [Ω]
Load stability < 0.01% of span / 100 Ω
Sensor error indication Programmable 3.5…23 mA
NAMUR NE 43 Upscale/Downscale > 21 mA / < 3.6 mA
HART protocol revisions HART 7 and HART 5
OBSERVED AUTHORITY REQUIREMENTS
EMC 2014/30/EU
RoHS 2011/65/EU
EAC TR-CU 020/2011
APPROVALS
ATEX DEKRA 16ATEX0047X
EU RO Mutual Recognition Type Approval MRA0000023
SIL SIL 2 / SIL 3 certified & fully assessed acc. to IEC 61508
NB
NAMUR NE95 report Please contact us
* / ** See manual for details

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PR Electronic 5437B 2-wire HART 7 temperature transmitter-DpstarGroup

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