Teledyne GFC-7001E - Trace CO Analyzer - Manual (Page 211)

Calibration Procedures Model GFC7001E Carbon Dioxide Analyzer
Teledyne Analytical Instruments 211
9.7.1.3. Activate O
2
Sensor Stability Function
To change the stability test function from CO concentration to the O
2
sensor output, press:
NOTE
Use the same procedure to reset the STB test function to CO when the O
2
calibration procedure is
complete.