PR Electronics 2-wire HART 7 temperature transmitter PR 5437D

2026-03-08

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PR5437D temperature transmitter

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 21.45 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 75 ms
Programmable damping 0…60 s
Polarity protection All inputs and outputs
Warm-up time < 5 min.
Start-up time < 2.75 s
Programming HART & PR 5909 Loop Link communications interface
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…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

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