Calibration and adjustment with Indigo80 handheld indicator - GMP251 - GMP80P - INDIGO80

The Indigo80 handheld indicator provides two ways to calibrate and adjust measurements for probes: Guided calibration and Manual adjustment.

Use Guided calibration if you have a reference gas environment or a calibrated reference instrument (another GMP251 or GMP252 probe or a third party instrument), and you want to:

• Perform calibration check at 1 or 2 CO₂ levels (check only, probe not adjusted), or
• Adjust your probe using 1 or 2 CO₂ levels (probe adjusted to minimize the observed error).

Use the Manual adjustment mode only if you already have calibration data (for example, a calibration certificate) for 1 or 2 calibration points and want to adjust the probe to correct the observed errors. No reference instrument or calibration gases are needed. For all other use cases, Guided calibration is recommended.