15
Airspeed Calibration Procedures
1. Perform the altimeter calibration described in the previous section. The pitot sensor is
calibrated in this process, along with the static sensor.
2. When a satisfactory altitude calibration is obtained, go through each test point in the
following chart, and enter the corrected value at each point. (The correction chart may be
photocopied, cut out, and fixed to the test box for handy reference.)
Note: if the airspeed calibration needs additional adjustment after being calibrated in the
altitude calibration procedures, the adjustment can be done by entering the calibration
process described in steps 1-6 of the previous section. Then adjust only the P sensor up or
down to increase or decrease the calibration point. Press the Units button to store the
change, then unplug the unit and power up again. Repeat as needed to achieve the desired
correction.
TEST DISPLAY TEST DISPLAY
AIRSPEED AIRSPEED AIRSPEED AIRSPEED
40 Kts 250 Kts
60 Kts 275 Kts
80 Kts 300 Kts
100 Kts 325 Kts
120 Kts 350 Kts
140 Kts 375 Kts
160 Kts 400 Kts
180 Kts 425 Kts
200 Kts 450 Kts
225 Kts 500 Kts
Calibrated by: ___________ Date: ________________
Next Calibration Due Date: ______________________
Original Calibration Correction Value
(for reference during calibration):
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