You can now perform the diagnostic tests from the keypad on the front panel of the VST Fuel S-810. Each of the
following diagnostic tests are engaged by keying in the number of the desired diagnostic routine. To go to
the next diagnostic routine or to terminate the current one, press CLEAR ENTRY.
DIAG # 1
DISPLAY DIAGNOSTIC: This test is performed to insure that all the elements of the display are
functioning correctly . When this diagnostic routine is engaged, the display will start scrolling the complete
character set and will continue until the CLEAR ENTRY key is pressed.
DIAG # 2
KEYPAD TEST: The keypad test is used to check the functions of all the keys on the keypad. The
test is performed by pressing each key and checking the corresponding display. To exit this diagnostic
routine, press CLEAR ENTRY.
DIAG # 3
READER TEST: The reader diagnostics checks the reader to insure accurate reading of the input
devices (cards, keys, or touch memories). An input device is inserted into the reader, and the display will
show the information from the device. The information on the device is then compared against the
displayed information to test for accuracy. To exit this diagnostic routine press CLEAR ENTRY
DIAG # 4
PUMP CONTROL RELAY TEST: This diagnostic is used to check the pump control relays, to
insure that they will energize upon command from the system and will control the correct pump. When
Diagnostic # four is selected, the display will change to the following:
SELECT PUMP
When you press key 1 the display will change to the following:
1 2 3 4 PUMPS <----
The four pumps.
1 0 0 0
<----
The 1 indicates ON,
the 0's indicate OFF
You could have pressed a 2, 3, or 4, instead of the 1. The number of the pump you press indicates which pump you
are trying to energize. As each pump is energized, the 0's under the pump number will change to 1's. To go
to the next diagnostic press CLEAR ENTRY.
DIAG # 5
PULSER DIAGNOSTICS: The pulser diagnostic is used to check the interface of the system to
the pulsers on the pumps. The pump BYPASS/NORMAL switch must be in the BYPASS position to
perform this test. Pressing key 5, ENTER will cause the display to change to the following:
1 2 3 4 PULSERS
<----
Pulser numbers.
0 0 0 0
<----
0 = OFF, 1 = ON
As each pulser is operated (by pumping fuel), the 0 under that pulser number will alternate between 0 and 1,
indicating that the pulser is working. To exit this diagnostic routine press CLEAR ENTRY.
DIAG # 6
HANDLE SWITCH DIAGNOSTIC: The Handle Switch Diagnostic is used to test the operation
of the dispensers' handle switch, and the interface to the ESI-FUEL 810.. The pump BYPASS/NORMAL
switch must be in the BYPASS position to perform this test. Press 6, ENTER and the display should
change to the following:
1 2 3 4
PUMP SWITCHES
0 0 0 0
0 = SWITCH OPEN, 1 = SWITCH CLOSED
The 0 indicates an open circuit. As each pump switch handle is turned on the 0 for that number pump will change to
a 1. To exit this diagnostic press CLEAR ENTRY.
VST, 2010
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