| If you want to perform a 2-point adjustment instead of a 1-point adjustment, use Vaisala Insight software or the serial line. See Vaisala Insight software and 2-point adjustment of RH measurement (HMP110 and HMP113). |
To perform a 1-point adjustment to the capacitance measurement of the HMP110 or HMP113 using the MI70 indicator, you need:
- MI70 indicator
- Connection cable for MI70 indicator (Vaisala item code 219980)
- One humidity reference. 1-point adjustment with a single < 50 %RH reference will adjust the offset parameter of the measurement. 1-point adjustment with a single > 50 %RH reference will adjust the gain parameter of the measurement.
The following procedure uses the HMK15 Humidity Calibrator. LiCl salt (11.3 %RH at 25 °C) is used as the reference point.
| For more information on using a humidity calibrator and salt chamber references, see Vaisala Humidity Calibrator HMK15 User Guide M210185EN. |