One-point adjustment using a calibrator – Vaisala HM70 User Manual

Page 45

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Chapter 9 ______________________________________ Calibration and Adjustment of Transmitters

VAISALA _______________________________________________________________________ 43

more). If you are near the probes, do not breath in their
direction.

9.

Press

ADJUST

to continue adjusting.

10. Choose

To same as RH

I/II

from the MI70 adjustment menu, press

SELECT

(MI70 automatically recognizes which port the HMP70-

series probe is connected to).

11. Confirm the adjustment by pressing

YES

.

12. The adjustment is done. Press

BACK

and

EXIT

to return to the

basic display.

13. Turn off the MI70 and detach the connection cable.

One-Point Adjustment Using a
Calibrator

When adjusting the transmitter in only one reference condition, please
take care that the reference condition represents the measuring
environment. MI70 indicator is used now only as a terminal for
visualizing and setting the transmitter's RH reading.

Follow steps 1 to 7 on page 42 and continue as follows:

8.

Remove the filter from the transmitter's probe and insert the
probe into the reference condition.

9.

Press

ADJUST

to continue adjusting.

10. Choose

1-point adjustment

from the MI70 adjustment menu, press

SELECT

.

11. Press

READY

when the reading has stabilized in the reference

condition (may take 30 minutes or more). You can follow the
stabilization from the

GRAPH

display.

12. Enter the correct reference value with the arrow buttons. Press

OK

.

13. Confirm the adjustment by pressing

YES

.

14. The adjustment is done. Press

BACK

and

EXIT

to return to the

basic display.

15. Turn off the MI70 and detach the connection cable.

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