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QT Technologies LLC
QT Technologies LLC (303) 444-3590 FAX (303) 444-8736 Page 9
NOTES: (See Sample Wiring Sche-
matic)
1. When using the Western Electronics model
500 pulser, be sure to connect the hot side of
the pulser power (BLACK WIRE) to the Clear
Signal (C1 or C2). This insures that the pulser
will begin at exactly zero and not part way
through the first pulse.
2. If a manual reset mechanism is employed, a
reset mimic switch must be installed for each
dispenser (See Figure 3). This switch must be
housed in an explosion-proof cover and simply
connects the R1/R2 terminal lug with the corre-
sponding C1/C2 terminal lug. This is required
so that customers can terminate a transaction
once they are done fueling. In most cases, a
customer depends on this switch since a typi-
cal sale involves overestimating the amount of
fuel required.
IMPORTANT NOTE: ALL WIRING MUST BE
DONE IN ACCORDANCE WITH FEDERAL,
STATE AND LOCAL CODES.
The information contained in this guide is provided
solely for planning purposes and so that appropri-
ate professional personnel can gain familiarity with
QT Technologies products. QT Technologies
makes no guarantee or warranty that any of the
recommendations or guidelines contained herein
are accurate or correct regarding Fire and Electri-
cal Codes. Compliance with local, state and federal
codes are the responsibility of the owner/operator
of the fuel delivery system.
Sample Wiring Schematic
This diagram illustrates how the QT Tech-
nologies terminal strip should be termi-
nated in order to run in manual mode (next
page) in preparation for Terminal Head
installation. Two popular types of pulsers
L2
Pump Motor
Relay
Handle
Reset Motor
2 Stage
Valve
Pump L1
Pump L2
Head Power
Dispenser
Power
Veeder Root 12V Pulser
Pump Motor
120/240V
L1
Hot
N
e
u
tr
a
l
QT Technologies LLC
M3000 Direct Wire - Sample Wiring Diagram
To Terminal Head
Figure 8—M3000 Direct Wire Sample Schematic