User guide

RPM Calibration

Item 10 in Instrument Calibration

The RPM Gauge has three unique features that are

slightly different than the standard gauge options. These

features include:

Yellow Mid Band Top: Used to depict prop operating

mid range restrictions. This should be set to 0 if your

prop does not have any.

Yellow Mid Band Bottom: Used to depict prop

operating mid range restrictions. This should be set to 0

if your prop does not have any.

Pulses Per 2 Revolutions: The systems needs to know how many pulses the RPM input will see in two

propeller rotations. The following data should help select the correct number to use.

1. Standard RPM sensor with Slick Mag 4 Cylinders: Pulses = 2

2. Standard RPM sensor with Slick Mag 6 Cylinders: Pulses = 3

3. Standard RPM sensor with Lasar Mag 4 Cylinders: Pulses = 4

4. Standard RPM sensor with Lasar Mag 6 Cylinders: Pulses = 6

5. Electronic Ignition 4 Cylinders: Pulses = 4

6. Electronic Ignition 6 Cylinders: Pulses = 6

Fuel Tank Calibration

Item 24-27 in Instrument Calibration

The AF-3400/350/4500 stores two sets of calibration

numbers for each tank. The AF-3400/3500/4500 uses the

ground calibration numbers when the Airspeed is less than

30kts (1700 RPM for Engine Monitor only). The flight

calibration numbers are used when the airspeed is greater

than 30kts (1700 RPM for Engine Monitor only). This

feature enables the fuel gauges to read correct on the

ground for a tail wheel equipped airplanes. If your plane

does not have a tail wheel you should set the ground and

flight data to the same calibration number.

Steps To Calibrate a Tank:

1. Place the AF-3400/3500/4500 into Instrument

Calibration mode. Use the [NEXT] button to scroll down to Tank 1 (Left Main), Tank 2 (Right Main),

Tank 3 Left Aux, or Tank 4 Right Aux.

2. Verify the Tank is Empty.

3. Enter the max size of the Tank in the Tank Size field.

4. Set the Audio On/Off Setting. If you set this to ON you will get an Audio warning if the fuel level is

below the Red Low At setting.

5. Set the Instrument On/Off Setting. If you set this to ON the tank will be displayed.