Chapter 6 ______________________________________________________________ Maintenance
VAISALA _______________________________________________________________________ 51
1108-039
Figure 10
Comparing Dewpoint Readings on MI70
7.
After the measurement has stabilized, check the difference
between the readings. It will give you an indication of the
approximate drift of the DPT145 and its need for calibration.
The difference between the readings should be no greater than
the combined measurement uncertainty of the DPT145 and the
reference probe.
8.
Write down the results and repeat the comparison for each
parameter you want to check.
9.
If adjustment is required, contact a Vaisala Service Center or
your local Vaisala representative to have the DPT145 adjusted.
NOTE
Some notes on using the MI70 indicator with the DPT145:
-
If you disconnect the DPT145 while the MI70 indicator is on,
the quantities measured will remain on the screen, but no
measurement will be shown.
-
Temperature measured by the DPT145 is shown as parameter
Ta
(not T) in the MI70.
-
The messages from the transmitter will appear in English even if
the MI70 has been set to another language.