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 ± 1.6% of full scale |
Scale range (MPa, kPa, bar) | 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/IP65 |
Temperature effect | Accuracy at temperature above and below the reference temperature (20℃) will be effected by approximately ±0.5% per 10℃ of full scale |
Pressure connection and under flange | 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) |
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) |
Contact | Reed switch, One and two SPST |