Bios DryCal Primary Gas Flow Calibrators
Definer 220 and 1020, Met-Lab ML-500, ML-800, ML One

Industrial Precision Air Flow Calibrators

Bios Definer™ 220 Primary Gas Flow Calibrator for Standardized Flow Verification The Definer 220 allows users to verify gas flow rates, in the field or in the lab, to an accuracy of ±1% percent of reading, including temperature and pressure compensation. The Definer 220 is a field-hardy primary flow meter that is NIST traceable. Each Definer 220 is individually calibrated in the Bios ISO 17025-, ANSI Z-540- and NIST Handbook 150-accredited gas flow calibration laboratory.

Unlike thermal mass flow meters, the Definer 220's positive displacement technology provides immediate indication of actual volumetric gas flow rate - accurately and independently of gas type. Integrated temperature and pressure sensors in the flow stream allow users to automatically standardize volumetric flow readings to standard conditions, for traceable verifications of mass flow devices.

The Definer comes standard with Bios Optimizer™ 110 standalone software.