Garmin G3X Installation Manual page 121

8.2.11.1 K-Factor for Floscan 201B-6
The Floscan 201B-6 (201-030-000) fuel flow sensor ranges from 28,000 to 31,000 pulses/gallon.
The G3X default K factor for the 201B-6 is set to 29,500 pulses/gallon. Some Floscan fuel flow sensors
come with a tag that lists the K factor number measured during unit calibration (see Figure 8-16).
If the Floscan tag shown in Figure 8-18 is lost, the serial number of the Floscan sensor
can be supplied to Floscan to obtain the calibrated K factor value.
The tag shown in Figure 8-18 lists a K Factor of 16-2890. The first two digits (16) represent Gallons Per
Hour, while the last four digits (2890) represent the number of electrical pulses (divided by 10) output by
the sensor per gallon of fuel flow. The numbers on the tag are used in determining the K-Factor to be
entered as part of the Fuel Flow Calibration described in Section 8.3.3. To determine this number, a zero
should be added to the four digit number on the tag. In the example above after adding the zero to 2890,
the resulting K-Factor to be entered on the Fuel Flow Calibration page would be 28900.
8.2.11.2 K-Factor for Electronics International FT-60 (Red Cube)
The G3X default K factor for the FT-60 is set to 68,000 pulses/gallon. No sensor specific calibration is
required for the FT-60 but variations in the installation can affect the K factor. Reference Electronics
International document #1030033 and Section 8.3.3 for additional information.
G3X Installation Manual – Engine Sensor Installation and Configuration
190-01115-01
Figure 8-18. Example Floscan Fuel Flow Sensor
NOTE
Actual K Factor
measured at
16 GPH
Page 8-17
Revision E