Vaisala PTU300 User's Guide Page 144

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USER'S GUIDE____________________________________________________________________
142 _________________________________________________________________ M210796EN-E
Table 34 Adjustment and Calibration Commands
Function Command
linear corrections on/off LCI ON/OFF
entering linear corrections LCI
multipoint corrections on/off MPCI ON/OFF
entering multipoint corrections MPCI
calibration date CDATE
Opening and Closing the Adjustment Mode
1. Open the transmitter cover. The buttons needed in adjustment are
on the left-hand side of the motherboard.
2. If the chemical purge option is available, it should be carried out
always before RH calibration. To start chemical purge press
simultaneously two PURGE push-buttons (on the motherboard) for
a few seconds. Red indicator led flashes with short pulses until
purge is complete (up to 6 minutes).
3. Press the ADJ button to open the adjustment mode.
4. Press the ADJ button again to close the adjustment mode.
0508-013
Figure 68 Adjustment and Purge Buttons
Numbers refer to Figure 68 above:
1 = Indicator led
2 = Adjustment button
3 = Press the purge buttons simultaneously to start chemical purge
(if available)
Adjustment menu is displayed only when ADJ button (on the
motherboard inside the transmitter) is pressed.
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