| 摘要 |
The invention relates to a pneumatic calibration device, effectively a hand-held pump for providing a controllable pressure for testing and calibrating pressure gauges, pressure switches or pressure transmitters. The invention comprises: a pump (102) for pressurising a chamber, an adjustment means (104) for adjusting the pressure in the chamber, a test device connector to connect the test device to the chamber, a pressure gauge connector to connect the pressure gauge to the chamber, characterised in that the pump comprises a pump body (106) and a pump lever (108), moveable relative to the body to operate the pump and the pump body is arranged to be supported against a planar surface in use. |
