8
Flow Averaging
The Flow Averaging function sets the
time period over which the fuel flow is
averaged. The time period can be set in
the range of 1 to 99 seconds. Normally,
engines do not draw fuel from the tank
at a constant rate. An engine draws fuel
at a high rate for a short time until the
carburetor bowl or injection reservoir is
full and then draws no fuel for a few
seconds. If the true flow rate were
displayed, it would be too erratic to read.
Usually, a value of 10 -15 seconds gives
satisfactory results for two stroke
naturally carburetored engines. Four
stroke and engines that use electronic
fuel injection may require longer
periods. If the readings seem erratic,
you can increase the time period.
A long time period means the fuel
display will have a slow response time
and a more accurate reading. A short
time period means the display will have
a quick response time but an erratic
display reading. The flow time period
setting only affects the fuel flow display.
It does not affect the fuel used or fuel
remaining measurement in terms of
accuracy.
Flow Average Menu
Follow the steps outlined below to enter
the Flow Averaging Menu:
1. Press and hold the
key while
applying power to enter the Fuel
Calibration menu.
2. Press and hold both keys
simultaneously for 2 seconds to enter
the Flow Filter mode.
3. The Fuel Flow Average Period menu
AVG
is displayed briefly and then the
default value of
10
seconds is
displayed if you have not previously
changed it.
4. Use the up or down keys to change
the value between 1 and 99 seconds.
or
5. Press and hold both keys
simultaneously for 2 seconds to save
the new averaging time period and
return to normal operation
Summary of Contents for IS0125
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