Calibration Of Pressure Gauges
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Product Description
CALIBRATION OF PRESSURE GAUGES
This apparatus enables a commercial Bourdon tube pressure gauge to be accurately calibrated using a dead weight tester. Usual practice is to load gauges using oil to transmit the known pressures; however. For ease of use and cleanliness in operation,
This equipment consists of a stainless piston which is free to move vertically in a closely fitting cylinder. A transparent flexible hose connects the cylinder to the pressure gauge. Its internal mechanism is clearly visible through the transparent dial.
Integral with the piston is a loading platform upon which known weights are placed during the test. All air is expelled from the system by tilting and gently tapping the cylinder.
Learning Objectives / Experiments
- Working principle of a Bourdon tube pressure gauge
- Calibrate manometers, read off applied pressure determine systematic errors
- Principle of operation and working with a piston manometer
Specification:
- Bourdon tube pressure gauge for pressure measurement
- Transparent dial face with a view of the spring mechanism
- Accurately fitting piston and cylinder of the piston manometer without seals
- Hydraulic oil for transfer of the force
- Hydraulic pump with storage tank and bleed mechanism
Technical Data:
- Piston manometer
- Pressure piston: diameter: 12mm
- Hydraulic cylinder: diameter: 25mm, length=225mm
- Oil: ISO viscosity grade: VG 32
Set of weights:
- Weight holder: 385g / 0,334bar
- 1x 193g / 0,166bar
- 4x 578g / 0,5bar
Measuring range:
- Pressure: 0...2,5bar
Dimensions and Weight:
- LxWxH: 410x410x410mm
- Weight: approx. 22kg
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