1. Connect the probe to Port I of the MI70 indicator.
2. Turn on the MI70 indicator.
3. Start the adjustment sequence from Main menu > Functions > Adjustments.
4. MI70 notifies you that automatic power o is disabled during adjustment mode, press OK
to acknowledge.
5. Select the RH parameter when prompted.
6. Now the adjustment mode is on, press ADJUST to select the adjustment method.
7. Select 1-point adjustment, press SELECT. Press OK to continue.
8. Insert the probe in the LiCl salt chamber of the humidity calibrator (11 %RH).
You can follow the stabilization from the GRAPH display. Press READY when the reading
is stabilized.
9. Give the reference humidity value by using the arrow buttons. Press OK.
10. Confirm the adjustment, press YES (by pressing NO you return to adjustment mode
display and no changes are made).
11. Adjustment has been carried out. Press BACK to exit the adjustment mode, and press
EXIT to return to the basic display.
More information
‣
2-point adjustment of RH measurement (HMP110 and HMP113) (page 58)
7.4.2 1-point adjustment of temperature measurement using
MI70 indicator (HMP110 and HMP113)
Temperature adjustment can be done if there is reason to believe that the adjustment is
changed. In a 1-point adjustment, make sure the reference condition represents the measuring
environment.
To perform a 1-point adjustment to the temperature measurement of the HMP110 or HMP113
using the MI70 indicator, you need:
• MI70 indicator
• Connection cable for MI70 indicator (Vaisala item code 219980)
• One known and stable temperature reference
1. Connect the probe to Port I of the MI70 indicator.
2. Turn on the MI70 indicator.
3. Start the adjustment sequence from Main menu > Functions > Adjustments.
4. MI70 notifies you that automatic power o is disabled during adjustment mode, press OK
to acknowledge.
5. Select the T parameter when prompted.
6. Now the adjustment mode is on, press ADJUST to select the adjustment method.
7. Select 1-point adjustment, press SELECT.
HMP60 and HMP110 Series User Guide M211060EN-J
62
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