Product Manual

6
For improved accuracy under such
conditions, the computer allows for
“eld”calibration,thatis,userentryof
custom calibration parameters.
NOTE: The calibration screw on
the side of the meter is
used to achieve accurate
calibration at the factory.
User adjustment of this
screw will invalidate the
factory calibration settings.
Thecomputer“field”calibrationcan
be user changed or modified at any
time using the calibration procedure
described in this section. All calibra-
tion information is visible to the user in
the three display windows during the
calibration process.
Totalsorowratederivedfromtheeld
calibrationareinvokedwhen“FLdCAL”
is intermittently visible (every 4
seconds) in the TOTAL display window
during normal use (see below).
This is a visible cue that the meter is
operatingineldcalibration.Factory
calibration has no visible cue during
normal use.
Verify Accuracy Before
Beginning Field Calibration
For the most accurate results,
dispenseataowratewhichbest
simulates your actual operating
conditions.Avoid“dribbling”more
fluid or repeatedly starting and
stoppingtheow.Thiscanresultin
less accurate calibrations.
Field Calibration Procedures
1. Purge air from the meter and fuel
system by dispensing fuel into a
container until a full flow occurs.
Close the nozzle.
configured with litres. Other units of
measure are programmed into the
computer and can be invoked by
“toggling”totheirsettingtosuityour
operational requirements. Press and
hold the CAL button down for about
3secondsto“toggle”tothenextunit.
Repeat this procedure to toggle to the
next unit and continuing as needed to
reach the unit of choice.
The following units of measure are
programmed into the computer in the
sequence shown:
US Gallons
Imperial Gallons
Liters
Pints
Quarts
Barrels (42g)
Ounces
(Special Order Units: Cubic
Centimeters, Cubic Feet and Cubic
Meters)
Switching between different units
will not corrupt the Total’s contents,
even while fluid is flowing since all
numeric displays are appropriately
scaled. For example, in gallon mode
the computer totalizes 10.0 gallons.
If the user switches to litre mode,
the display will read 37.85 litres (the
same volume, different unit).
CALIBRATION
The meter is accurately calibrated at
the factory for use with diesel fuel.
Duetodifferencesinviscosity,ow
rates or under extreme temperature
conditions, readings using the Factory
Calibration may show inaccuracies.