Vaisala HMP260 SERIES Manuel de service télécharger pdf (Page 51)

HMP260 SERIES

HMP260-U017en-1.5 Operating Manual

1997-11-25 45

6.2.1 One point offset correction

6.2.1.1 Using serial commands

Disconnect the security lock jumper!

• Leave the reference instrument and the transmitter for at least 4 hours

in the same space so that their temperatures have time to equalize.

Remove the filter cap prior to calibration.

• Check the transmitter against the reference.

• Give command CT <cr> and enter the first point value and press

<cr>:

CT <cr>

'T : xx.x Ref1 ? yy.y <cr>

Press any key when ready

•

If you want to see how the sensor stabilizes to the reference

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

T : 0.90 Ref1 ? c <cr>

T : 0.55 Ref1 ? c <cr>

T : 0.55 Ref1 ? 0.0 <cr>

Press any key when ready...

•

After giving the correct temperature value (Ref1) and pressing <cr>

press any key and press <cr>.

6.2.1.2 Using display/keypad commands

Disconnect the security lock jumper!

• Leave the reference instrument and the transmitter for at least 4 hours

in the same space so that their temperatures have time to equalize.

Remove the filter cap prior to calibration.

• Check the transmitter against the reference.

• Select Cali in the main menu and then T cal; select two-point

calibration T 2 point cal. Change the first point reading with the

arrow keys and press ENT.

• Select T 1 point cal, change the reading to correspond to the

reference and press ENT.

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Vaisala HMP260 SERIES Manuel de service Page 51