Compac CNG Service Manual page 32

K-Factor Switch
Maximum Fill Pressure (Temperature Compensated Units Only)
To adjust the Maximum Fill Pressure
Vehicle Tank Temperature Rise (Temperature Compensated Units Only)
To adjust the Vehicle Tank
Temperature Rise
Compac Industries Ltd.
The maximum fill pressure (
temperature compensated filling. The units of measure are in bar.
PLA
is the maximum fill pressure of side A of the dispenser.
PLb
is the maximum fill pressure of side B of the dispenser
This is only used in temperature compensated dispensers.
Do not set the maximum fill pressure so that it is below the
target fill pressure.
1. Make sure that the dispenser is idle, with the nozzle in its holster
2. Press and release the K-Factor switch until the required target fill
pressure is displayed flow rate is displayed. (
3. Enter the new maximum fill pressure.
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.
4. Let the menu time out so that the value and quantity amounts are
displayed.
Vehicle Tank Temperature Rise (
temperature rise in the gas during a fill. As the tank fills, the temperature
of the gas rises. The lighter the tank, the greater the temperature rise will
be.
rA
is the vehicle tank temperature rise of side A of the dispenser.
rb
is the vehicle tank temperature rise of side B of the dispenser
Typical values for these may be:
 Car filling = 20 [heavy steel cylinder].
Bus/Truck filling = 30 [lighter carbon wrapped Aluminium cylinder].

1. Make sure that the dispenser is idle, with the nozzle in its holster
2. Press and release the K-Factor switch until the required vehicle
tank temperature rise is displayed. (
3. Enter the new vehicle tank temperature rise.
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.
4. Let the menu time out so that the value and quantity amounts are
displayed.
Page 32
Dispenser Set-up
PLA PLb)
and is the upper limit for
PLA
rA rb
and ) is used to compensate for
rA rb
or )
www.compacngv.com
PLb
or )