Gas Primary Standard - Autobell®

The Autobell®, a primary standard gas calibration system, is used to accurately measure a displaced volume of gas at a constant pressure. Interface electronics are provided to measure displaced volume and the time over which the volume is displaced so that a precise flow rate can be determined.

To calibrate a gas flow meter using the Autobell®, the flow meter must be installed upstream of the bell so that all gas flowing through it is captured by the calibrator.

Quick Specs

• Primary standard gas calibration system
• Flow range of 0.1 to 125 ACFM (2.83 to 3540 ALPM)
• +/- 0.2% uncertainty of volumetric flow rate measurement (95% C.L.) typical
• Interface using menu driven CalWare software