Teledyne GFC-7001T - Trace CO Analyzer - Manual (Page 224)

Calibration Procedures Teledyne API – Model T300/T300M CO Analyzer
Teledyne Analytical Instruments 224
9.7.2.3. ACTIVATE CO2 SENSOR STABILITY FUNCTION
To change the stability test function from CO concentration to the CO
2
sensor output,
press:
Note Use the same procedure to reset the STB test function to CO when the
CO2 calibration procedure is complete.