Vaisala Indigo 201 - Table 8 Standards and Compliance; Table 9 Wireless Access Point (Module with Internal Chip Antenna); Table 10 Operating and Storage Environment

2. Start the calibration mode with the Start calibration button.
If you cannot enter configurations after selecting Start calibration, check that the
calibration PIN code is in place in the Settings > Probe menu.
3. If you need to set environmental compensations, enable and set the required
compensations on the Configuration tab.
Note that the environmental compensations you set on the Configuration tab and
the compensations you set in the Settings > Probe menu are interconnected: the
configuration set in either menu is applied to both.
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. You can follow the stabilization from the
Measurements tab.
7. Enter the value of the
first reference (for example, 0 if calibrating with a 0 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.
Indigo 201 User Guide M211877EN-E
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