Vaisala HMP260 SERIES Wartungshandbuch PDF herunterladen (Seite 47)

HMP260 SERIES

HMP260-U017en-1.5 Operating Manual

1997-11-25 41

• If you want to see how the sensor stabilizes to the humidity in the

calibrator, enter c <cr> instead of the first reference:

RH : 11.9 Ref1 ? c <cr>

RH : 11.5 Ref1 ? c <cr>

RH : 11.5 Ref1 ? 11.3 <cr>

Press any key when ready...

•

Place the sensor head into the calibration hole of the NaCl bottle in

the humidity calibrator.

• Wait for 10 minutes.

• Press any key and enter the second point value and press <cr>.

RH : xx.x Ref2 ? yy.y <cr>

•

The stabilization of the sensor can be monitored by entering c <cr>

instead of the reference value.

6.1.2.2 Using display/keypad commands

Disconnect the security lock jumper!

• Leave the calibrator and the transmitter for at least 4 hours in the

same space so that their temperatures have time to equalize. Remove

the filter cap on the transmitter.

• Place the sensor head into the calibration hole of the LiCl bottle in the

humidity calibrator.

• Wait for 10 minutes.

• Select Cali in the main menu and then RH cal; select Not changed

and then two-point calibration RH 2 point cal. Change the first point

reading with the arrow keys and press ENT.

• Place the sensor head into the calibration hole of the NaCl bottle in

the humidity calibrator.

• Wait for 10 minutes.

• If necessary, change the second point reading with the arrow keys and

press ENT.

6.1.2.3 Using LED commands

Disconnect the security lock jumper!

• Leave the calibrator and the transmitter for at least 4 hours in the

same space so that their temperatures have time to equalize. Remove

the filter cap on the transmitter.

• Place the sensor head into the calibration hole of the LiCl bottle in the

humidity calibrator.

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Vaisala HMP260 SERIES Wartungshandbuch Seite 47