Gas Flow Calibration

Articles & Whitepapers

Calibration of gas mixers in the low flow range

Most dynamic gas mixers use flow regulators to create defined gas mixtures. QCAL Messtechnik uses thermal mass flow controllers ( MFC ) from various, renowned manufacturers. These MFCs are reliably calibrated proven by a calibration certificate – traceable to National Standards. But these calibrations are limited. The whitepaper describes 2 methods to extend the application range of gas mixers ...

A Tale of Two Thermals: Capillary & Immersible

About: The Core Technology White Paper Series is a four part series detailing the flow technologies that allow Sierra to offer a flow solution for nearly any gas, liquid and steam application. Part ...

UKAS Air Flow Calibration Extension

The laboratory has successfully extended the UKAS Schedule for gas flow calibration services, covering 1 cc/min to 1280 l/sec (4300 cum/hr) and can accommodate flowmeter sizes up to 12 inch diameter. Facilities to offer both suction and blown air ...

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Generation of Mercury Calibration Gas

The MC-3000 generates a continuous stream of a mercury vapor loaded gas in order to check or calibrate mercury analyzers. An exactly adjustable carrier gas stream (normally air or nitrogen) is loaded with mercury in a first step. In a second step the gas is supersaturated by cooling. Subsequently the excess mercury is condensed in a special cell to get exact saturation. The gas is then diluted, ...