【Test items】
Gas Flow Standard Device (bell Porvers) is used to verify various small gas flow meters such as diaphragm gas meters, float meters, velocity flowmeters, and gas displacement meters.
【Applicable standards】
JJG 165-2005 Verification Regulation of Standard Bell Porvers of Gas Flow
JJG 257-1994 Verification Regulation of Rotamotor
JJF 1357-2012 Calibration Secification for Wet Gas Meters
【Technical parameters】
Equipment specifications: 20L, 30L, 50L, 100L
Flow range of the meter: 0.6-6m3/h
Device uncertainty: 0.2 to 0.5
Pressure range: 1-1.6kPa
Control method: Computer control
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