With Display/Keypad Commands; With Led Commands - Vaisala HMP230 SERIES Operating Manual

U116en-2.2
If you want to see how the sensor stabilizes to the reference
temperature, enter c <cr> instead of the first reference:
T : 0.90
T : 0.55
T : 0.55 Ref1
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.
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
calibration
Change the reading with the arrow keys to correspond to the reference
and press ENT.
6.2.1.3.
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.
Connect an ammeter/voltmeter to the analogue outputs (connector
X2). Give command
on the left flashes; adjust the first point (offset) with the arrow
switches to the same reading with the reference and press ENT
switch.
After adjusting the offset point and pressing ENT the second LED
from left flashes. Press ENT without changing the output value.
Ref1 ? c <cr>
Ref1 ? c <cr>
? 0.0 <cr>

With display/keypad commands

Disconnect the security lock jumper!
in the main menu and then

With LED commands

Disconnect the security lock jumper!
.
. At the first calibration point the LED
HMP230 SERIES
Operating Manual
; select one-point
57