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 Gas Piston Pressure Gauge
Gas Piston Pressure Gauge is a high accuracy pressure standard instrument, which may measure the exact pressure between 2-160kPa, 4-250kPa, and 4-400kPa with gas as medium. It is a precision instrument measuring and calibrating the gauge pressure and absolute pressure.
The material for the piston rod is stainless steel and the material for the piston barrel is tungsten carbide, so as to ensure the piston features rust resistance, wear-resistance and long working life.
Compare with the liquid (transformer oil, castor oil) piston pressure gauge, this gas piston pressure gauge has different technical indicators due to the different medium. Besides a lower descending speed, the gas piston pressure gauge also has much better technical indicators of repeatability, perdurability, sensitivity, etc.
The gas piston pressure gauge can be equipped with pistons of different ranges to ensure both the very wide measuring range and higher accuracy, meanwhile, the gauge pressure and absolute pressure can be measured, multipurpose for one machine, and the price performance is superior.
The gauge has the advantages like small size, light weight, etc.
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Model: BQY-400, BQY-160
Specifications:
¡ñ Measuring range: 2 ¡« 160kPa, 4 ¡« 250kPa, 4 ¡« 400kPa
¡ñ Working medium: nitrogen or pure air
¡ñ Accuracy: ¡À0.02%, ¡À0.005%
Storage and use
¡ñ Storage temperature: 20 ¡À 5 ¡æ
¡ñ Working temperature: 20 ¡À 1 ¡æ (0.005%), 20 ¡À 2 ¡æ (0.02%)
¡ñ Detecting temperature: 20 ¡À 0.5 ¡æ (0.005%), 20 ¡À 2 ¡æ (0.002%)
¡ñ Humidity: RH<70%
¡ñ Piston effective area:
Effective area range of piston assembly S1 (3.990 ¡« 4.010)cm2 (range 2 ¡« 160kPa)
Effective area range of piston assembly S2 (1.990 ¡« 2.010)cm2 (range 4 ¡« 250kPa, 4 ¡« 400kPa)
¡ñ Materials: Piston: stainless steel Piston barrel: tungsten carbide Poise: stainless steel
¡ñ Descending speed of piston: measuring with the speed of 30 ¡« 60 rev/min under full load
¡ð Accuracy: ¡À 0.005%, range 2 ¡« 160kPa descending speed 1.5mm/min; range 4 ¡« 400kPa, descending speed 2.0mm/min
¡ð Accuracy: ¡À 0.002%, range 2 ¡« 160kPa descending speed 2.0mm/min; range 4 ¡« 400kPa, descending speed 2.5mm/min
¡ñ Perdurability of the piston: under half load:
¡ñ Sensitivity of the instrument: tested under full load
¡ð Sensitivity 0.02g; (or 2.2ppm under 160kPa; 2.5ppm under 250kPa and 400kPa)
¡ð Sensitivity 0.05g; (or 7.8ppm under 160kPa; 6.3ppm under 250kPa and 400kPa)
¡ñ Vacuity of the vacuum covering:
¡ñ Supply voltage: 220V
¡ñ Special poise:
¡ð Accuracy: ¡À0.005%, allowable error ¡À0.001%
¡ð Accuracy: ¡À0.002%, allowable error ¡À0.001%
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