Syn-Tech Systems FuelMaster Plus Operation Manual page 30

SECTION IV- TWO KEY OPERATIONS
These actions can create confusion for the user.
If the PIN option is enabled on this key, the following prompt appears:
Enter the PIN (Personal Identification Number) of the key on the FMU
keypad. This number is assigned to the key when it is encoded and is a 4-
digit number that is unique to the key. If the entry is incorrect, an error
message appears, the error is logged on the on-site printer and the
process begins again. Once the PIN is entered correctly, the next prompt
appears.
If the ODOMETER/CHRONOMETER option is enabled for this Vehicle
Key, the following prompt appears:
What occurs next is very important and causes much confusion.
When the Vehicle Key is first inserted, the FMU looks at the
MILES/HOURS range that was encoded to the key. The FMU then looks
at the miles/hours that were entered and written back to the key during the
previous fueling transaction. The FMU then calculates the miles/hours
elapsed and compares it to the value just entered and sends the
appropriate prompt to the FMU display screen. One of the following three
messages will be displayed:
This error message indicates that the entry is lower than the entry that was
written to the key during the previous fueling transaction on this vehicle.
This error message indicates that the entry has an elapsed miles or hours value
***** FUELMASTER ***
** ENTER P.I.N. --->
***** FUELMASTER *****
ENTER CHRONO/ODOMETER --->
***** FUELMASTER *****
* ODOMETER TOO LOW! PLEASE TRY AGAIN. *
***** FUELMASTER *****
* ODOMETER TOO HIGH! PLEASE TRY AGAIN. *
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