​The Teledyne Hastings Instruments thermal mass flow meters can be used for many different gases. The gas must be compatible with the materials of construction and within the calibrated range of the instrument. The gas conversion factors supplied referenced to nitrogen. No electrical adjustments required leaving the original calibration undisturbed. 

GCF adjustments are available through the THCD-101 and THCD-401 power supply|display, 300 series digital flow instruments touch screen display, PLC or manually. 

To learn more about applying gas conversion factors (GCF) read:

How do I use GCF (Gas Conversion Factors) with my mass flow meter or mass flow controller?​

Don’t see your gas here: contact us at [email protected] 

 200 Series​ ​Mass Flow Gas Conversion Fac​tors​

 ​300 Series Mass Flow Gas Conversion Fac​tors