2.3 Maintenance; Repair; Sensor Offset - Kanardia INDU Airspee Manual

INDU Airspeed — Manual
ˆ engine heat and exhaust heat,
ˆ direct sunlight,
ˆ heated air exited from cabin.
We also do not recommend installing the probe in the heated cabin area, since the elevated
temperature in the cabin may influence the back side of the probe, though such influence is
usually small.
Please follow these steps to install the OAT probe:
1. Locate a spot in the aircraft taking into account the considerations from above and
drill a φ 8 mm hole.
2. Remove the external nut from the probe but keep the washer, internal nut and plastic
insulation tube on the probe.
3. Install the probe into the hole from the interior. Route the cable to the airspeed back
panel.
4. Apply some lock-tight and thread the external nut to the probe. The lock-tight is
necessary to avoid losing the cap due to vibrations.
5. Tighten the internal nut so that the probe sits firmly and apply lock-tight on the nut.
Do not over tight it.
6. Slide the plastic insulation tube over the exposed threads of the probe and cover as
much threads as possible. Shrink the tube using hot air blower. Do not use open flame.
Plastic insulation (shrink) tube also serves as thermal insulation for the sensor located
in the tip.
2.3 Maintenance
No special maintenance is required. A pito-static leak test should be performed annually and
calibration check biannually.
2.4

Repair

The Indu airspeed has no serviceable parts inside. In the case of malfunction, it must be sent
to factory for a repair.
2.5 Sensor Offset
Sensor offset can be tuned with the help of INDU altimeter. Please refer to altimeter manual
for more details.
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2.3 Maintenance

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Kanardia 2016