Vaisala HMP110 Guide de l'utilisateur télécharger pdf (Page 43)

Chapter 4 ________________________________________________________________ Operation

VAISALA _______________________________________________________________________ 41

Example: one-point calibration

ct 23.5

Giving the command without parameters starts the two-point calibration.

Remember to allow the temperature to stabilize for 20 - 40 minutes after

changing the reference. The first reference point must be smaller than the

second point, and the difference between the reference points must be

more than 30 ºC. To update the measured value while the command is

running, press enter without inputting a value.

Example: two-point calibration

T : 22.03 Ref1 ? 22

Press any key when ready ...

T : 55.12 Ref2 ? 55

Clear Adjustment of T Measurement

Use the CTCLR command to clear the adjustment of temperature

measurement that has been done using the CT command.

CTCLR<cr>

Example:

ctclr

View User Adjustment Parameters

Use the L command to view the current user adjustment parameters. This

command is useful for checking the currently applied customer

calibration.

L<cr>

The output values are as follows:

- Cp offset and gain: capacitance, calibrated using the CRH command

- T offset and gain: calibrated using the CT command

Example (shows default values, no user calibration done):

Cp offset : 0.00000000E+00

Cp gain : 1.00000000E+00

T offset : 0.00000000E+00

T gain : 1.00000000E+00

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Vaisala HMP110 Guide de l'utilisateur Page 43