P680 series_Differential pressure gauge with reed switch
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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