REVUE THOMMEN AG
CH-4437 Waldenburg
AD20 Standby Altimeter
Page 65 of 72
07-Sep-2009 Document No: AD-INSOP-800 Revision: 1.6
The following procedure shall be performed to set new brightness levels:
1.) Enter manual maintenance mode and select lighting curve adjustment display 4
2.) The selected lighting condition number and the current dim step (according to the
applied lighting voltage) are shown.
B C
10
o
23
hPa
4000
InHg
Lighting Condition No.
Display No.
Dim Step
Fig. 5-5 Lighting Curve Adjustment Display
3.) Start the adjustment by pushing the TEST button once shortly.
The currently selected lighting condition number on the left side blinks.
4.) Select the lighting condition number that shall be modified by pushing the TEST button.
The lighting condition number is increased by pushing the test button.
If the upper limit of lighting condition numbers is reached the lighting condition number
rolls over to the first lighting condition and the adjustment is cancelled.
5.) Select the dim step to be adjusted by varying the external lighting voltage.
The dim step increases if the lighting voltage is increased and vice versa.
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