Vaisala HMP130 User's Guide download pdf (Page 11)

HMI41 Calibration Option

Appendix 1 19165ZZ-U220en-1.1

2 1996-08-26

2. Calibration

After having connected the cable, turn the HMI41 on and follow the

instructions of the table below:

DISPLAY WHAT TO DO PRESS:

setminmax hyst hold Lo batHi

Pabs Pa

g/m

Td °C°F

°C°F

The HMI41 has been turned on.

Indication of the software version (if the

version is 1.02 or more)

bat

Indication of the battery voltage.

RH %

Let the readings stabilize and then adjust

the transmitter potentiometers until the

readings are the same.

offset: <65 %RH

gain : >65 %RH

Alternatively, you can adjust the

transmitter when the display shows the

difference in readings.

MODE to have the difference

in readings on the display

ON/OFF if you have

completed the calibration

RH %

Let the readings stabilize and then adjust

the transmitter potentiometers until the

reading on the first line is as close to zero

as possible.

offset: <65 %RH

gain : >65 %RH

MODE to return the measured

values on the display

ON/OFF if you have

completed the calibration

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Vaisala HMP130 User's Guide Page 11