Vaisala DMT340 - Manual (Page 164)

User's Guide _______________________________________________________________________
162 __________________________________________________________________ M210704EN-G
Adjusting Temperature using Serial Line
CT
Use the serial line command CT to adjust the temperature.
1. Press the ADJ button on the motherboard to open the adjustment
mode.
2. Remove the probe filter and insert the probe into the reference
temperature.
3. Use the CT command and press ENTER. Type C and press
ENTER to check if the reading is stabilized.
4. Let the reading stabilize, enter the reference temperature after the
question mark and press ENTER three times.
When having another reference temperature (2-point calibration)
press ENTER twice and insert the probe to the second reference.
When the reading is stabilized, enter the second reference
temperature after the question mark and press ENTER. Note that
the difference between the two temperature references must be at
least 30 ºC.
Example (one-point adjustment):
>ct
T : 16.06 Ref1 ? c
T : 16.06 Ref1 ? c
T : 16.06 Ref1 ? c
T : 16.06 Ref1 ? c
T : 16.06 Ref1 ? c
T : 16.06 Ref1 ? 16.0
Press any key when ready ...
T : 16.06 Ref2 ?
OK
>
OK indicates that the calibration has succeeded.
5. Press the ADJ button on the motherboard to close the adjustment
mode.
6. Take the probe out of the reference conditions and replace the
filter.