Sandel ST3400, Installation Manual

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7.2.12 AIR DATA INPUT TESTS
Follow Aircraft Manufacturers instructions and connect Pitot/Static test box to the
aircraft Pitot/Static system. Select ST3400 to Maintenance Page 3&4: AIR DATA
monitor the #1 and #2 Air data inputs.
Set the Pilot’s altimeter to field elevation.
SIGNAL FUNCTION TOLERANCE RECORD
VALUE PASS FAIL
Field Elevation CBA1 Verify altitude between
Pilot’s Altimeter and TAWS
is - 75 Feet
Adjust Pitot/Static
Test box to 1,000 ft
over Field Elevation CBA1 Verify altitude between
Pilot’s Altimeter and TAWS
is - 75 Feet
Adjust the Pitot/Static Box for a climb and descent as required (Do not exceed
aircraft VSI).
SIGNAL FUNCTION TOLERANCE RECORD
VALUE
PASS FAIL
Adjust Pitot/Static
Test box to 1,000,
2,000 and 4,000 fpm
climb. BR1 Verify vertical speed
readings between Pilot’s
VSI and TAWS is -
200 FPM
Adjust Pitot/Static
Test box to 1,000,
2,000 and 4,000 fpm
descent. BR1 Verify vertical speed
readings between Pilot’s
VSI and TAWS is -
200 FPM
NOTE: If using Analog Baro Rate input this tolerance is inc/- 400FPM
Adjust the Pitot/Static Box for field elevation.
SIGNAL FUNCTION TOLERANCE RECORD
VALUE
PASS FAIL
Adjust Pitot/Static
Test box to 120,
160 and 220 knots. TA1 Verify airspeed readings
between Pilot’s airspeed and
TAWS is - 25 knots
Field Temp IAT OR
OAT
Verify temperature within
+-5 degrees of ambient
NOTE: Press “VALUE” softkey and then UP/DOWN softkeys to access IAT
or OAT.
82002-IM-L ST3400 INSTALLATION MANUAL
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