UAV-1003947-001, AV-30-C, Installation Manual
21
Rev E
10.2.1
Power Input (Required)
Power input is required in both AI and DG configurations and each unit has a
dedicated circuit breaker. The power input is internally connected, and diode
protected with the unit’s internal battery via a processor-controlled switch.
This architecture allows the unit to continue operation if external power
fluctuates or is completely lost. Input range is compatible with both 12V and
24V aircraft.
Each AV-30-C must have a dedicated, properly labeled, pilot resettable
circuit breaker as part of the installation. Power for the unit should be
supplied from the main battery master relay. It is recommended to shield the
power wire.
10.2.2
Pitot and Static Interfaces (Required)
Pitot and static connections are required for DG and AI modes.
Airspeed, altitude, derived angle of attack (AoA), True Airspeed (TAS),
Density Altitude (DALT), DG heading, and traffic altitude all require pitot and
static connections as they are based on either altitude or airspeed measured
from those connections.
When installed as a DG, the pitot and static connections must be connected
for Outside Air Temperature (OAT), backup battery in flight, and DG heading
aid. TAS and DALT are the only air-data related parameters that can be
displayed when in DG mode.
10.2.3
Outside Air Temp Input (Optional)
The optional outside air temperature interface requires a dedicated external
analog probe. This port connection is compatible with the Davtron P/N
C307PS (not supplied).
This is a differential two-wire current source based on the Analog Devices
AD590KH component and supplies a current that corresponds to the
ambient temperature.
