PR Electronics 2-wire HART 7 temperature transmitter PR 5437A
2026-03-08

PR5437A 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 voltage |
7.5*…48** 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, test / working |
2.5 kVAC / 55 VAC |
| Response time |
75 ms |
| Programmable damping |
0…60 s |
| Polarity protection |
All inputs and outputs |
| Write protection |
Jumper or software |
| Warm-up time |
< 5 min. |
| Start-up time |
< 2.75 s |
| Programming |
HART & PR 5909 Loop Link communications interface |
| 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 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 |
| 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 |
| 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 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 |
| 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
| 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 |