Vaisala PTU300 Guia do Utilizador Página 129

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Chapter 6 ___________________________________________________Calibration and adjustment
VAISALA ______________________________________________________________________ 127
Adjustment menu is displayed only when ADJ button (on the
motherboard inside the transmitter) is pressed.
0601-042
Figure 51 Adjustment Menu
Table 20 Indicator Led Functions
Indicator Led Function Description
LED off adjustment locked
LED on adjustment available
LED blinking evenly measurement not stabilized
LED blinking with short pulses performing chemical purge
NOTE
If using a warmed probe (PTU307 option), probe heating will be
interrupted when ADJ key is pressed. Allow sufficient time for the
probe to reach ambient temperature before starting the adjustment
procedure.
NOTE
Fixed pressure compensation value of 1013.25 hPa is used when in
adjustment mode
Pressure Adjustment
1-point Adjustment Using
Display/Keypad
1. Carry out the chemical purge (if available).
2. Press the ADJ button to open the ADJUSTMENT MENU.
3. Select Adjust P measurement, press the right arrow key.
4. Select P
1
adjustment. Press the START key.
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