User guide
88
Calibration Tips:
AF-3400/3500 systems are shipped with all sensors except Fuel Tanks and Trim / Flap sensors fully
calibrated. Individual sensors should not need to be adjusted unless a new sensor is installed.
The Amps transducer (Hall or Shunt) will need to have the zero current point set.
Anytime you calibrate an Instrument and Enter the new data make sure to write that data down. You
should keep a good record of this data with you at all time. That way if you accidentally set the default
data you will have a record of what you have calibrated and will not have to do it again.
When calibrating any temperature sensor wait until the calibration number stops changing (2-3
minutes) before recording it. This will help make the calibration more accurate.
To exit the calibration page press the [RETURN] button twice. This will return you to the usual startup. The
calibration data you changed will be saved and used. Make sure to use caution while calibrating your
instruments. Saving bad calibration data causes your instrument readings to be off.
Airspeed Color Range Settings
The Airspeed tape color range settings should be
adjusted for your aircraft. All the speeds are in Knots.
Max: Top of the gauge Should be set to 240 KTS
Vne: Never Exceed Speed This is where the Red arc
starts.
Vno: Normal Operation, This is the top of the green arc,
bottom of the yellow.
Vfe: Flap Extend Speed, Top of the white arc.
Vs0: Stall Speed with the Flaps up.
Vs1: Stall Speed with the Flaps Down.
Airspeed Adjust: This should normally be 0, it can be
used to offset the airspeed readings.
Airspeed Enable: This should normally be On, it can be used to turn off the airspeed gauge.
Units: Knots or MPH, the Airspeed tape range V Speeds are always set in knots.
Altimeter Check
Item 2 in Instrument Calibration
The altimeter check should be performed on an as-needed basis. If the altimeter is found to be out of
specification, the following adjustment can be performed from the EFIS Calibration menu:
2. Altitude
3. Altitude Adjust (FT)
After making an adjustment, ensure that the altimeter meets the tolerances allowed between 0 and 30,000
feet. If this adjustment does not correct the unit, contact Advanced Flight Systems Inc. for service.