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Troubleshooting
03/07/03
4-11
Quantity shows on 9800A displays but fuel management system records incorrect or zero
quantity. This problem pertains only to 9800A’s connected to non-CFN fuel management
systems.
Possible Cause
Checks
Corrective Action
Pulser output rate switches
don’t match system pulser
rate.
Check the settings of SW2-1
through SW1-4 on the CPU
PCB.
Change the CPU PCB switch
settings or change the fuel
management system pulser
rate accordingly.
NOTE: Changing the pulser
rate switches may require
replacement of your Weights
and Measures seal.
Fuel management system
pulser input circuitry not
compatible.
The 9800A requires the fuel
management system to "pull
up" the pulser signal to a DC
voltage between 5VDC and
24VDC.
Call GASBOY Technical
Service for assistance.
Defective CPU PCB.
Using an oscilloscope, check
the signal between GND (TP2)
and the following pins of P2 on
the pump I/F PCB.:
Pin 5-Side 1 1000:1;
250:1, international
Pin 6-Side 2 1000:1;
250:1, international
Pin 10-Side 1 below 1000:1;
below 250:1 international
Pin 11-Side 2 below 1000:1;
below 250:1 international
Replace the CPU PCB if a
+5VDC square wave signal is
not measured on the
appropriate pins.
NOTE: Replacing the CPU
PCB may require replacement
of your Weights and Measures
seal.
Defective Pump I/F PCB.
Using an oscilloscope, check
the signal between GND (TP2)
and P1 pin 1 (side 1) or P1 pin
2 (side 2) on the pump I/F
PCB.
Replace the Pump I/F PCB if
the pulser signal is not
measured on the appropriate
pins.
Replace the power supply if
0VDC is measured on both
sides of F1 or F2.
Содержание 9800A Series
Страница 8: ......
Страница 11: ...Chassis Wiring 03 07 03 2 3 115VAC 60 CYCLE PUMP WIRING...
Страница 12: ...GASBOY Series 9800A 2 4 03 07 03 115VAC 60 CYCLE DISPENSER WIRING...
Страница 13: ...Chassis Wiring 03 07 03 2 5 230VAC 50 CYCLE PUMP WIRING...
Страница 14: ...GASBOY Series 9800A 2 6 03 07 03 230VAC 50 CYCLE DISPENSER WIRING...
Страница 15: ...Chassis Wiring 03 07 03 2 7 115VAC 60 CYCLE FRONT LOAD OPTION PUMP WIRING...
Страница 16: ...GASBOY Series 9800A 2 8 03 07 03 115VAC 60 CYCLE FRONT LOAD OPTION DISPENSER WIRING...
Страница 17: ...Chassis Wiring 03 07 03 2 9 230VAC 50 CYCLE FRONT LOAD OPTION PUMP WIRING...
Страница 18: ...GASBOY Series 9800A 2 10 03 07 03 230VAC 50 CYCLE FRONT LOAD OPTION DISPENSER WIRING...
Страница 19: ...Chassis Wiring 03 07 03 2 11...
Страница 20: ......
Страница 39: ...Electronic Head Assembly 03 07 03 3 19 Connectors Relay Drive Pump Motor Power...
Страница 60: ......
Страница 63: ...Replacement Instructions 03 07 03 5 3 ON POWER OFF E S F U S U 1 AMP SB E F MICRO POWER LIGHTS HEATER LOOSEN...
Страница 65: ...Replacement Instructions 03 07 03 5 5...
Страница 72: ...GASBOY Series 9800A 5 12 03 07 03...
Страница 75: ......
Страница 76: ...APPENDIX PARTS LIST...
Страница 77: ......