G:\Masters\Installation Sheets\Master & Premier\MMR400S Aviation Installation Sheet.doc
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12.2
Submersible Delay (Sd)
This is the time delay from when the Submersible pump starts to when the solenoids in the
dispenser open to allow time for the leak detector to reset.
This is factory set by Compac at 005 (five seconds).
If problems are experienced with the leak detector tripping, firstly check that 'Sd' is still set and
then, if necessary, make it longer as follows.
1. Press and release the K factor switch repeatedly until 'Sd' appears on the Dollar display
'dXXX' will appear in the litres display.
2. Continue to press the K factor switch until the number to be changed flashes. Hold the switch
down and this number will then increment.
3. Release the switch when the required number is displayed. The value of the displayed number
will then be stored in the C4000 memory as the Submersible delay.
12.3
Preset Cutoff (Pcut)
If a preset keypad is fitted, it may be necessary to adjust the Pcut setting on site if the preset
overruns. The Pcut setting turns the solenoid output (T3) off prior to the preset amount being
reached to allow for preset overruns.
1.
Do a preset delivery and observe if the preset overruns, and if so, by how much.
2.
Press and release the K factor switch repeatedly until 'Pcut' appears on the Dollar display
3.
Increase the Pcut setting and do another delivery. Adjust the Pcut setting again if required.
(The maximum value that the Pcut can be set to is 9.99 litres).
Notes:
1.
The factory default setting is 0.00. When the Pcut is set to 0.00, the solenoid output (T3)
turns off 0.5 litre before the preset amount, when changed from this, the solenoid turns off
at the actual Pcut setting (x.xx litres).
2.
Due to the high flow rate, it may not be possible to make the Pcut amount large enough to
eliminate any preset overruns completely.
.
12.4
Parameter Switch settings
12.4.1
Setting the Pump Number
This must be set at the pump, for each hose, so that communications with
a controller can take place. The location of this switch is shown in the
diagram below.
Depress the Parameter Switch nine (9) or more times until the message
'PnA XX'
appears in the litres display window. When the switch is
pressed again
'Pnb XX
' will appear on the display. These two options
will toggle each time the switch is pressed. To alter either of the pump numbers, press and hold
the Parameter Switch when the pump number to be altered appears on the display. This number
will then increment. The switch should be released when the desired pump number is displayed.
The value of the displayed number will then be stored in the C4000 memory as the pump
number for that hose.
NOTE
: For a single hose only
‘Pn”
will appear
