Vaisala HUMICAP HMT310 Guía de usuario descargar pdf (Pagina 83)

Chapter 6 ___________________________________________________ Calibration and Adjustment

VAISALA ________________________________________________________________________ 83

Press EXIT to quit the adjustment mode and return to the basic MI70

view.

LiCl – NaCl automatic adjustment

LiCl-NaCl automatic adjustment is a two-point adjustment in reference

humidities of 11.3 % (LiCl) and 75 % (NaCl). You do not have to enter

the reference values, the MI70 displays the accurate value based on the

measured temperature and the Greenspan table stored into the memory of

the MI70.

To make the adjustment, select LiCl – NaCl auto in the RH adjustment

menu and follow the steps below:

1. Set the probe to the LiCl reference humidity. You can follow the

stabilization from the GRAPH display. Press READY when the

reading is stabilized.

2. Set the probe to the NaCl reference humidity. You can follow the

stabilization from the GRAPH display. Press READY when the

reading is stabilized.

3. After the NaCl reference humidity measurement is done, MI70

checks if you want to use this 2-point adjustment. Press OK to

confirm the adjustment.

Once confirmed, the adjustment has been carried out. Press BACK to

exit the RH adjustment mode and return to the main adjustment options.

Press EXIT to quit the adjustment mode and return to the basic MI70

view.

Adjusting T with MI70

Selecting T in the main adjustment menu brings up the current T

measurement. Select ADJUST to choose the adjustment type. The

following T adjustment options are available:

- 1-point adjustment

- 2-point adjustment

NOTE

Temperature adjustment in one or two points can be done if there is

reason to believe that the adjustment is changed. If

the adjustment is

done only in one point, the reference condition is used to represent the

measuring environment.

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Vaisala HUMICAP HMT310 Guía de usuario Pagina 83