Dead Weight Pressure Gauge Calibrator Tester

This dead weight pressure gauge calibrator made of a precision machined piston & cylinder assembly mounted on levelling screws.
The gauge is thus subject to known pressures, which may be compared with the gauge readings and an error curve drawn.
A Bourdon gauge is supplied for calibration. The weights supplied are added to the upper end of the piston rod, which is rotated to minimise friction effects. 

Precision machined piston and cylinder with leveling screws
Educational software available as an option
Bourdon gauge with inlet and outlet valves
Set of weights.