Vaisala Humicap HMW60U Guía de usuario descargar pdf (Pagina 55)

Chapter 9 ______________________________________ Calibration and Adjustment of Transmitters

VAISALA _______________________________________________________________________ 53

From now on the adjustment is carried out by using the MI70

indicator.

7. Press OK to start adjustment.

8. Select RH or T, press SELECT.

9. If RH selected, check the environment settings, if needed.

Otherwise press NO.

Field Checking and Adjustment by

Using a Calibrated Reference Probe

Follow the steps from 1 to 8 on page 52 and continue as follows:

9. Check that the probes are located in equal conditions and wait

until the readings are stabilized (can take 30 minutes or more). If

you are near the probes, do not breathe in their direction.

10. Press

ADJUST to continue adjusting.

11. Press To same asRH

Ii/I

, press SELECT. (MI70 recognizes always

the port to which the HMP70-series probe is connected).

12. Confirm by pressing YES.

13. Adjustment is done. Press BACK and EXIT to return to the

basic display.

14. Switch off the MI70 and detach the calibration cable.

1-Point Adjustment by Using a

Calibrator

When adjusting a transmitter only in one reference condition, please

take care that the reference condition represents the measuring

environment. MI70 indicator is used now in communication.

If you use humidity calibrator HMK15, please use the adapter fitting

(13.5 mm) on the measurement hole if you calibrate probes of

HMT334, HMT335, HMT337 and HMT338.

Follow the steps from 1 to 8 on page 52 and continue as follows:

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Vaisala Humicap HMW60U Guía de usuario Pagina 55