UAV-1004234-001, AV-30-E, Installation Manual
19
Rev C
9.2.1 Power Input (Required)
Power input is required in both AI, DG and MFD 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 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.
9.2.2 Pitot and Static Interfaces (Required)
Pitot and static connections are required for DG, AI, and MFD mode.
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.
When installed as an MFD, the pitot and static connections are required for
traffic relative altitude. If unconnected, incorrect relative altitudes may be
displayed.
9.2.3 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.
