Vaisala HUMICAP HMT310 Guía de usuario Pagina 82

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User's Guide _______________________________________________________________________
82 ___________________________________________________________________ M210619EN-E
Adjusting RH with MI70
Selecting RH in the main adjustment menu brings up a notification about
checking environment settings. Select YES to access the environment
settings before performing the RH adjustment, or NO to continue to RH
adjustment without changing the current environment settings. Select
ADJUST to access the RH adjustment options.
The following RH adjustment options are available:
- 1-point adjustment
- 2-point adjustment
- LiCl NaCl auto
1-point RH Adjustment
Usually it is recommended to make an adjustment in two reference
humidities. If the adjustment is done by using one reference humidity (1-
point adjustment), select the reference humidity so that it represents the
measuring environment. Make the adjustment in one point as instructed
in the 2-point RH Adjustment instructions (select 1-point adjustment
instead of 2-point adjustment and follow the display instructions).
2-point RH Adjustment
Select 2-point adjustment in the RH adjustment menu and follow the
steps below:
1. Set the probe to a lower reference relative humidity. You can
follow the stabilization from the GRAPH display. Press READY
when the reading is stabilized.
2. Give the lower reference humidity value by using the arrow
buttons. Press OK.
3. Set the probe to the higher reference humidity. Press READY
when the reading is stabilized. You can follow the stabilization
from the GRAPH display.
4. Give the higher reference relative humidity value by using the
arrow buttons. Press OK.
5. To confirm the adjustment, press YES. To cancel entering the
adjustment, press NO to return to adjustment mode display
without making any changes. Note that if the difference between
the two references is less than 50 %, adjustment cannot be done.
Once confirmed, the adjustment has been carried out. Press BACK to
exit the RH adjustment mode and return to the main adjustment options.
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