Vaisala Humicap HMW60U Guia do Utilizador descarregar pdf (Página 53)

Chapter 9 ______________________________________ Calibration and Adjustment of Transmitters

VAISALA _______________________________________________________________________ 51

13. Enter correct reference value by using the arrow buttons. Press

OK.

14. Confirm by pressing YES.

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

basic display.

16. Replace the jumper to CAL.RH pins.

17. Switch off HM70 and detach the calibration cable from MI70

and from the transmitter.

2-Point Adjustment by Using a

Calibrator

Note that the difference between the two reference humidities shall be

at least 50 %. MI70 indicator is used now as a communicator. HMP70

probe can be connected or it can be removed while making this

adjustment.

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

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

HMT324, HMT325, HMT327 and HMT328.

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

9. Remove the filter from the transmitter's probe and insert the

probe into lower reference humidity.

10. Press ADJUST to continue adjusting.

11. Select

2-point adjustment, press SELECT.

12. Press

READY when the reading is stabilized in the first

reference condition (takes about 30 minutes or more)

13. Enter correct reference value by using the arrow buttons. Press

OK.

14. Remove the probe and insert the probe into higher reference

humidity. You can follow the stabilization from the GRAPH

display (takes about 30 minutes or more).

15. Press READY when the reading is stabilized in the second

reference condition.

16. Give the higher reference humidity value by using the arrow

buttons. Press OK.

17. Confirm the adjustment, press

YES (by pressing NO you

return to adjustment mode display and no changes are made). If

1 2 ... 48 49 50 51 52 53 54 55 56 57 58 ... 82 83

Sem comentários

Vaisala Humicap HMW60U Guia do Utilizador Página 53