Vaisala HMDW110 - Page 66

8. Give the ct command to start the calibration and adjustment sequence. The transmitter
shows the measured T value and prompts you to enter the real temperature of the first
reference point.
ct
T : 22.9424 1. ref ?
9. Press enter to refresh the measured value (to see if the measurement is now stable).
When it is, enter the value of the first reference point (in degrees Celcius) and press enter.
T : 22.9424 1. ref ? <cr>
T : 22.9424 1. ref ? 23.0
Press any key when ready ...
To exit the procedure without adjusting the measurement, press the Esc key
on your keyboard.
10. Transfer the probe to the second temperature reference.
11. Wait for the temperature to stabilize. Press Enter on the keyboard to refresh the
measured value:
Press any key when ready ...
T : 54.9871 2. ref ? <cr>
T : 54.9873 2. ref ? <cr>
12. When the measurement is stable, enter the value of the second reference point and press
Enter.
T : 54.9873 2. ref ? 55
OK
13. Give the l command to verify that new values for user adjustment parameters T oset
and T gain have been stored.
Example: User adjustment parameters after two-point temperature adjustment (your
values will be dierent):
Cp offset : 0.00000000E+00
Cp gain : 1.00000000E+00
T offset : 7.64255524E-02
T gain : 1.00767076E+00
14. Remove the probe from the temperature reference.
HMDW110 User Guide M211726EN-D
64