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Wet Differential Pressure Transmitter – Series 251

The 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 flexibility with a 5:1 turn down and comes standard with a certificate of calibration.

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: -4° to 158°F (-20° to 70° C)

Thermal Effect: +/- 0.028% FS/°F (0.050%/° C)

Stability: +/- 0.5% FS/year

Power Supply: 12-30 VDC

Output Signal: 4-20 mA, 2-wire Electrical Connection

Electrical Connetction: mini DIN 43650

Response Time:  100 ms

Turn Down: 5:1

Enclosure Rating: NEMA 4X (IP 65)

Process Connection: 1/4 NPT female, optional 1/4 G

Mounting Position Effect: 0.1% F.S., can be corrected by zero adjust

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User Manual


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