1 using serial commands, 2 using display/keypad commands – Vaisala HMP260 User Manual
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
CT
'T : xx.x Ref1 ? yy.y
Press any key when ready
•
If you want to see how the sensor stabilizes to the reference
temperature, enter c
T : 0.90 Ref1 ? c
T : 0.55 Ref1 ? c
T : 0.55 Ref1 ? 0.0
Press any key when ready...
•
After giving the correct temperature value (Ref1) and pressing
press any key and press
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.