Mechanical pressure gauges are exposed to natural ageing and environmental influences during operation. Over time, these influences can lead to deviations in the display. Regular verification is necessary to ensure high accuracy and process reliability in the long term.
Diaphragm pressure gauges are used for low pressures and measurement ranges requiring high resolution.
For verification, the RT 305.09 Diaphragm pressure gauge is connected to the height-adjustable water tank with a level tube and scale of the RT 304 Calibration trainer.
The pressure is set via the height of the water tank and the test points are compared across the entire measuring range using the height of the water column. The deviations are recorded.