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89000046-014
KSN 780/8XX/900 AeroNav AML STC Installation Manual for Helicopters
Rev 0
Page 7-17
© Honeywell International Inc. Do not copy without express permission of Honeywell.
Photo Maximum
The Photo Maximum sets the maximum brightness when the dimming source is the photocell. Both
the Bezel and Display fields have a range of 50 to 100, and the factory default is 100.
dimBus Transition %
The dimBus Transition % sets the threshold where the aircraft dimming bus takes over from the
photocell. Below this threshold, the aircraft dimmer controls the AeroNav XXX lighting. Both the Bezel
and Display fields have a range of 0 to 100, and the factory default is 10.
Note: If it is not desired to hand brightness control over to the dimming bus from the photocell at any
point, set dimBus Transition % to 0 (zero). Doing so will prevent the scenario where, in increasingly
darker environments (e.g. flying past sunset into dark night), the display automatically dims and dims
and dims and then suddenly jumps to bright.
dimBus Slope
The dimBus Slope sets the sensitivity of the display/bezel to the aircraft dimmer. Both the Bezel and
Display fields have a range of 15 to 100, and the factory default is 60.
Note: Previous to Release 10.1.1.0, a dimBus slope value of 100 on the AviCurve resulted in a
maximum brightness value of 21%. In Release 10.1.1.0 and later, a slope value of 100 will result in
100% maximum brightness.
dimBus Minimum
The dimBus Minimum sets the minimum brightness when the aircraft dimmer is the dimming source.
Both the Bezel and Display fields have a range of 1 to 50, and the factory default is 1.
dimBus Maximum
The dimBus Maximum sets the maximum brightness when the aircraft dimmer is the dimming source.
Both the Bezel and Display fields have a range of 50 to 100, and the factory default is 100.
dimBus Curve
The dimBus Curve sets the aircraft dimming bus to either a Proportional Curve or AviCurve on the
AeroNav XXX.
The Proportional Curve tracks the aircraft lighting bus as follows: Maximum night lighting at
maximum aircraft lighting bus voltage, Minimum night lighting at minimum aircraft lighting bus
voltage (linear in-between).
Содержание 700-00179-700
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