6. Place the probe in the reference environment (adjustment point 1) and wait until the
measurement has stabilized. You can follow the stabilization from the Measurements
tab.
7. Enter the value of the reference (for example, 500 if calibrating with a 500 ppmCO
2
reference gas) into the Reference value, point 1 field.
8. After you enter the reference value, the value of the Measured value, point 1 field
updates automatically.
9. After you have entered the reference point, select Store adjustment to save the
adjustment.
10. Close the calibration mode with the Stop calibration button.
11. To check that the adjustment was carried out correctly, review the information in the
Adjustment data
fields at the bottom of the view.
7.12.5
2-point Adjustment with Indigo
To make a 2-point adjustment, you need a low reference and a high reference (select
references that are near the low and high ends of your measurement range). Prepare the
calibration references (for example, reference gases with known concentrations) before
starting the adjustment.
To make a 2-point adjustment with Indigo wireless
configuration interface:
1. Open the wireless configuration interface in the browser of your wireless device and
open the Calibration menu.
2. Start the calibration mode with the Start calibration button.
3. If you need to set environmental compensations, enable and set the required
compensations on the
Configuration tab.
4. Remove any possible previous adjustments by restoring the factory adjustment: select
Restore factory adjustment for each parameter you are adjusting.
5. Enter the calibration date and calibration information into the corresponding text fields.
6. Place the probe in the first reference environment (adjustment point 1) and wait until
the measurement has stabilized.
GMP252 User Guide M211897EN-D
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