Vaisala DMT132 - Manual (Page 56)

USER'S GUIDE____________________________________________________________________
54 __________________________________________________________________ M211289EN-A
5. If the desired quantities are not shown on the display, select them
from the Display – Quantities and units menu.
6. The Auto power off function should be disabled on the MI70
indicator to prevent the indicator from powering off in the middle
of the check. While waiting for the active measurement to start,
check the setting in the Settings - User Interface menu, and
change if necessary.
7. Write down the T
d/f
reading after the measurement has stabilized.
8. Turn off the MI70 indicator and disconnect the DMT132.
9. Insert the reference probe to the measurement environment, and
connect it to the MI70 indicator.
10. Turn on the MI70 indicator. Check and adjust the environment
settings if prompted.
11. Wait for the reference probe to provide a stable reading, and
compare it with the reading from the DMT132.
The difference between the readings should be within the combined
accuracy of the reference probe and the DMT132 in the measured
temperature and dewpoint. If the difference is more, the DMT132
is in need of adjustment.
You can have the DMT132 adjusted by a Vaisala Service Center
(see page 66), or adjust the transmitter yourself by following the
procedure Humidity Calibration and Adjustment (RHCAL) on page
55.
NOTE Some notes on using the MI70 indicator with the DMT132:
- If you disconnect the DMT132 while the MI70 indicator is on, the
quantities measured will remain on the screen, but no measurement
will be shown.
- Notification messages from the transmitter will appear in English
even if the MI70 has been set to another language.