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Differential Pressure Transmitter - Wet/Wet
Series 251
Data Sheet PDFThe Series 251 wet/wet differential pressure transmitter utilizes a double diaphragm sensor technology that outperforms standard double sensor products in accuracy, reliability and static operating pressure. This differential pressure sensing technology offers 0.25% accuracy with static operating pressures up to 1000 PSI. The Series 251 features 316 stainless steel construction designed to meet NEMA 4X (IP 65) standards. The transmitter also offers exceptional field flexibi ity with a 5:1 turn down and comes standard with a certificate of calibration.
Specifications
- Media compatibility:
- Gas and Liquids compatible with 316SS
- Accuracy:
- +/- 0.25% F.S.
- Over Pressure:
- positive - 2x f.S.; negative-1x F.S.
- Working Pressure:
- 1000 PSI (7MPa)
- Temperature Limits:
- Operating: -40° to 185°F (-40° to 85° C)
Compensated: 68° to 158°F (20" to 70° C) - Thermal Effect:
- +/- 0.028% FS/°F (0.050%/° C)
- Stability:
- +/- 0.5% FS/year
- Output Signal:
- 4-20 mA, 2-wire Electrical Connection
- Power Supply:
- 12-30 VDC
- Response Time:
- l00 ms
- Turn Down:
- 5:1
- Dampening:
- 1-30 s adjustable
- Enclosure Rating:
- NEMA 4X (IP 65)
- Process Connection:
- 1/4" NPl , female
- Mounting Position Effect:
- 0.1% F.S., can be corrected by zero adjust.
Dimensional Drawing
Model Numbers
| Model Number | Range |
| 251-01 | 0 - 5 PSI |
| 251-02 | 0 - 10 PSI |
| 251-03 | 0 - 15 PSI |
| 251-04 | 0 - 30 PSI |
| 251-05 | 0 - 50 PSI |
| 251-06 | 0 - 100 PSI |
| 251-07 | 0 - 150 PSI |
| 251-08 | 0 - 300 PSI |
| 251-09 | 0 - 500 PSI |
*Other ranges available upon request.
