Why won’t my meter read zero when no flow is present?

The ADM1000 is probably one of the most widespread gas flowmeters in use today. It features a measurement range of 0.5 to 1000 mL/min for all noncorrosive and non-flammable gases used in many industries. It features a very quick warm-up time and is a volumetric type meter, so it is gas independent.

California Integration Coordinators, Inc. is the factory authorized calibration and repair center for the ADM1000, ADM2000, and the ADM3000. Visit our website to review all of the services we offer for the ADM Flowmeter line. For recalibration or repair, use the Work Order Form prior to shipment of your unit https://flowmeter.cic-inc.com/cgi-bin/form.pl

The most often asked question about the meter is, why my meter won’t read zero when no flow is present or it is not connected to anything. Because the meter’s range extends below 1 mL/min, any air or gas movement near an unconnected sample tube will be read. For the meter to display a zero reading the sample tube must be plugged and it needs to be in a relatively quiet environment.

To view the ADM1000 flowmeter at Agilent’s website use this link http://www.chem.agilent.com/en-US/products/consumables/gasmanagement/adm1000flowmeter/pages/default.aspx

For questions on annual calibration, repairs, and other questions on meter operation, you may contact California Integration Coordinators, Inc. at http://www.cic-inc.com/ or call 530-626-6168 and ask for the Calibration Lab.