Service intended
P680 series are differential pressure gauge is designed to measure differential pressure from 25 kPa to 2.0 MPa at static pressure 10 MPa. A set of two stainless steel bellows mounted on a force balance allows direct reading of the actual differential pressure. The contacts uses a reed switch for warning and control applications.
| Nominal diameter |
150 mm |
| Accuracy |
±1.0 % of full scale
±1.5 % of full scale |
| Scale range (MPa, kPa, bar, mbar) |
0 ~ 25 kPa to 0 ~ 0.25 MPa (P681 model)
0 ~ 0.4 MPa to 0 ~ 2.0 MPa (P682 model) |
| Static pressure |
Max. 10 MPa |
| Working temperature |
Ambient : -20 ~ 65 °C
Fluid : Max. 100 °C |
| Degree of protection |
EN60529/IEC529/IP55 |
| Temperature effect |
Accuracy at temperature above and below the reference temperature (20 ℃) will be effected by approximately
±0.5 % per 10 ℃ of full scale |
Standard features
| Pressure connection |
Stainless steel (316SS), Monel and Hastelloy-C |
| Element |
Bellows
Stainless steel (316SS), Monel and Hastelloy-C |
| Case and cover |
ALDC12.1, black painted Screwed type |
| Window |
Safety glass |
| Dial |
White aluminium with black graduations |
| Filling liquid for differential cell |
Silicone oil |
| Pointer |
Black painted aluminium alloy (Zero adjustable) |
| Contact |
Reed switch, One and two SPST |
| Conduit connection |
¾" PF(F) |
| Process connection |
¼" NPT(F)
½" NPT(F) at 3-way and 5-way manifold valve |
| Standard accessories |
Mounting bracket for 2” pipe
mounting with silver gray finished steel |
| Option |
■ Remote seal - Not available with less than 40 kPa of differential pressure range
■ Mounting bracket with 316SS for 2" pipe
■ 3-way and 5-way manifold valve
■ 3-way and 5-way manifold valve (Monel) |
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