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Electrical contact type pressure gauge
with Cr plated Zn case

Type: P542, P543


Service intended


P542 and P543 series are designed for a local reading of measured pressure and equipped with the electrical contact block which allows all the combinations of contacts to be used. The contact block is mounted on the dial. The window is fitted with a knob for external adjustment of the set points. These are also designed to direct the leakage of insulating oil inside the electric cable.


Nominal diameter


100 and 150 mm




±1.0 % of full scale


Scale range (MPa, kPa, bar)


-0.1 ~ 0.6 MPa to -0.1 ~ 1 MPa
-0.1 ~ 0.3 MPa


Working pressure


Steady : 75 % of full scale value
Over range protection : 130% of full scale


Working temperature


Ambient : -40 ~ 65 °C
Fluid : Max. 100 °C


Degree of protection




Temperature effect


Accuracy at temperature above and below the reference temperature (20 ℃) will be effected by approximately
±0.4 % per 10 ℃ of full scale



Standard features


Pressure connection

Stainless steel (316SS) Threaded entry, radial




Stainless steel (316SS) C type bourdon tube




Nickel plated zinc for 100 mm (P542)
Triple setpoint only 316SS 100 and 150 mm (P543)




Nickel plated zinc for 100 mm
Triple setpoint only 316SS 150 mm (P543)




Safety glass




Stainless steel




White aluminium with black graduations




BsT3 alloy, black painted pointer with gold plated




Contact : Dual set point or triple set point
Contact rating : AC 110 V, 0.5 A/AC 220 V, 0.25 A
Dielectric strength : AC 2,000 V/min insulation
Insulation resistance : More than 100 MΩ at DC 500 V


Process connection


⅜" PF



Download:  CATALOG 

Đồng hồ áp suất (tiếp điểm điện) P542 P543

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