Vaisala DMT340 User Manual download pdf (Page 164)

User's Guide _______________________________________________________________________

162 __________________________________________________________________ M210704EN-G

Adjusting Temperature using Serial Line

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 ? 16.0

Press any key when ready ...

T : 16.06 Ref2 ?

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.

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Vaisala DMT340 User Manual Page 164