PR 5437A 2-Wire HART 7 Temperature Transmitter
Key Features
- RTD, TC, potentiometer, linear resistance and bipolar mV input capability
- Single or true dual inputs with sensor redundancy and drift detection
- Wide ambient operating temperature range
- HART 7 protocol compatibility
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-condensing) |
| Protection degree (enclosure/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*...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 |
Performance Characteristics
| Isolation voltage, test / working |
2.5 kVAC / 55 VAC |
| Response time |
75 ms |
| Programmable damping |
0...60 s |
| Warm-up time |
< 5 min. |
| Start-up time |
< 2.75 s |
| Long-term stability |
±0.05% of span / year (±0.18% of span / 5 years) |
| Signal / noise ratio |
> 60 dB |
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 |
Thermocouple 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 |
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 |
| HART protocol revisions |
HART 7 and HART 5 |
Approvals and Certifications
| ATEX |
DEKRA 18ATEX0135X |
| IECEx |
IECEx DEK. 16.0029X |
| CSA |
CSA 16.70066266 |
| c FM us |
FM16US0287X / FM16CA0146X |
| SIL |
SIL 2 / SIL 3 certified & fully assessed acc. to IEC 61508 |
* / ** See manual for details
NAMUR NE95 report available upon request