Pressure Calibrator HYDRAULIC DEADWEIGHT TESTERS

Applications:

Measurement of pressure, calibration of pressure transmitter, pressure gauges and pressure switches

Operating Principle

Fluid Pressure generated by a screw pump acts on the bottom of a vertically free floating piston. The force produced pushes the loaded free piston vertically upwards. The piston floats freely in its cylinder and the pressure in the circuit will be determined by the weights loaded on the piston divided by the effective area of the piston with corrections for value of acceleration due to gravity, air buoyancy, surface tension and datum level difference.

Standard Features:
Accuracy : 0.015% of reading
Over All Range: 1-2000 bar or10-30000 psi
Operating Fluid:

Hydraulic Oil & Water  ( Depends on model Chosen )

Materials of Construction:

Piston: Tungsten Carbide/HCHC
Cylinder: Tungsten Carbide/HCHC
Internals: Austenitic 300 series Stainless steel
Mass Set: Austenitic 300 series Stainless steel