Vaisala HMP260 SERIES Manual de servicio Pagina 51

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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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