Compac CNG Service Manual page 27

Dispenser Set-up
Density Factor
Adjusting the Density factor
Meter K-Factor
Compac Industries Ltd.
The density factor (dSF
displayed. For KG, a density factor of 1.000 is used. For other units of
measure, different density factors are required.
To determine the correct density factor for the unit of measure you would
like to use on the read-out, consider the following:
 The dispenser read-out displays the measured quantity in KG
divided by the density factor.
 When the required unit of measure is kg the density factor
should be set to 1. In this case the display will show the
measured quantity in kg
 When another unit of measure is required, the density factor
should be set to the ratio between the required unit of measure
and kgs. In this case the display will show the measured
quantity (kg) / density factor (unit of measure/kg )
For example if you wish to show the display in pounds:
1 pound = 0.4535 Kg so the density factor is entered as 0.4535. If 1 Kg is
now dispensed the display will now read 1 / 0.4535 = 2.205 pounds.
1. Make sure that the dispenser is idle, with the nozzle in its holster.
2. Open the access panel and remove the cover of the C4000
processor box, which is illustrated in the Dispenser Component
Locater section (see page 89).
3. Press the K-Factor switch once and release.
dSF
The display shows
setting for the dispenser that you are commissioning.
4. Enter the required Density Factor.
Each press of the K-Factor switch passes you over a digit
in a setting, making the digit blink. Holding the switch down for more than
a second changes whichever digit is currently displayed. If you want to
pass over a setting without changing any digits, keep pressing and
releasing the switch.
FA
The meter K-Factor (
ensure the displayed quantity is correct.
F FA is
or the meter K-factor on side A of the dispenser.
Fb
is the meter K-factor on side B of the dispenser.
The K-Factor is set during the calibration phase Meter Calibration (see
page 67) and does not require adjusting during service.
Page 27
)
is used to set the format of the quantity that is
X.XXXX, which is the current density factor
Fb)
and is a meter correction factor used to
K-Factor Switch
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