Gasboy 9100Q Series - Manual (Page 37)

05/05/03 5-1
Section 5
PULSERS
GENERAL
A pulser is an optional device which is used when external monitoring of the dispensing unit
operation is desired. The pulser transmits one electrical signal (pulse) for each predetermined
amount of fuel dispensed. The signal is received by the external monitor (fuel management
system) which keeps a running total of the quantity of fuel being dispensed during each
transaction.
All Series 9100Q pulsers are operated with DC voltages. These pulsers include the reed pulser
which outputs 10 pulses per unit of measure and the electronic pulsers which are available at 100
pulses per unit of measure. The pulser type should be selected according to the monitoring
equipment, the application, and the regulations that must be met.
All Series 9100Q pulsers are driven by shafts or gears from the non-computer register. The
EXTQTY shaft is the pulser drive most commonly used to meet requested pulser applications.
This shaft is for quantity and does not turn during reset. The register offers another pulse drive
which is seldom used by GASBOY. It is the RHQTY gear which is attached to the right hand
quantity wheel which resets to the same position at the beginning of each transaction during the
reset process.
WIRING
When installed in a separate DC conduit, 18 AWG wires are required for installation. Although it is
recommended that DC pulser wires be run in a conduit separate from AC wires, they can be
combined in the same conduit with AC wires providing UL-Listed cable with the following
specifications is used:
Conductor:
18 AWG stranded wire. Number of conductors to be determined by pulser
requirements.
Shield: Foil-wrapped 100% coverage and/or tinned copper braid 90% coverage
Drain Wire: Stranded, tinned copper, 20 AWG or larger/or braided shield
Voltage Rating: Maximum operating voltage of 600V
Environmental: Gas- and oil-resistant; suitable for wet or dry locations.
GASBOY can supply Belden 1063A (P/N C09655) which is a UL-Listed, 4-conductor cable that
meets the requirements listed above. NOTE: Belden 1063A is UL-Listed but not CSA listed.