38 SECTION 2: OPERATION
EPI800 Manual.doc EPI 800 MANUAL 2001 Vision Microsystems Inc.
IMPORTANT: During calibration, the aircraft must be positioned
rigidly on jacks or the equivalent, in the attitude that you want the fuel
calibration to be the most accurate (i.e. , in cruise or parked etc.).
STEP 1. Connect a selector switch to the fuel level indicator and select
desired tank. All positions are relative to switch being fully
CCW, which is considered ‘Position 1’.
- Position 2 to read LEFT TANK.
- Position 3 to read CENTER TANK.
- Position 4 to read RIGHT TANK.
STEP 2. WAIT a full 2 minutes, then find the location on the Fuel
Calibration Chart equal to the current fuel level. Select and
record the complete numerical values that appear in the display.
A value may be approx. 3800 for a 8 foot dry probe, or 19800
for a 16 inch dry probe. Values will decrease as fuel is added to
the tank(s).
STEP 3. ADD a 2 gallon fuel increment to each tank being calibrated and
go back to STEP 2. Repeat until all tanks have been filled and
recorded.
STEP 4. MAIL or FAX copies of the calibration sheets to us for
programming. BE SURE to fill in requested information on the
chart.
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