Adjust zero pressure gauge
In general, sphygmomanometers and differential sphygmomanometers are provided with micrometer type Pointer, which can be used to set zero after opening the Bezel & Glass. However, for devices filled with liquid (glycerin / silicone oil), this arrangement is practically not suitable because the filling liquid must be drained before opening the jar and glass. After setting to zero, the shovel and glass must be reassembled and the case re-filled with liquids
Pressure Gauges with Zero Adjustment
To overcome this problem, manufacturers have developed a unique design of External Zero Adjustment
In this way, zero can be adjusted without pulling the glycerin, without opening the pit, without removing the glass and without touching the indicator, just by turning a handle prepared outside the meter. This arrangement is highly recommended in terms of maintenance, especially for devices full of liquid
Rose Calibration Company in Melbourne, Australia with over ten years of experience provides all calibration, maintenance, and repair services throughout Australia. If you live in Sydney, Melbourne, Adelaide, Perth, Geelong, and Brisbane, you can receive your quote in less than two hours by fill-up the form via the “Booking” link.