Page 2-22 Document Ref 905675-001 Rev 2
Product Information WWC T1 Set Up & Maintenance Manual
Issue B
Pulser Test Time
Before starting a delivery, the pulser is tested during a specified ‘pulser test
time’. During this test, the valves remain closed and the pulser is checked on
consistent high/low values of both channels and there should be no pulses
generated during this period. The value of the ‘pulser test time’ is typically 1
second and cannot be altered.
Hose Expansion
This feature is designed to prevent “non zero display” problems caused by
evaporation of fuel in the pipes/hose between the volume meter and the nozzle.
The pulser may generate pulses when the nozzle is lifted but not triggered and
the pump motor has started to run before any fuel is dispensed. This will
pressurise the hose and can cause the hose to expand.
This function allows the limited amount of pulses detected by the pulser in the
above situation to be deleted. It can also be used for leak detection and is a legal
requirement in certain countries e.g. Italy.
The Hose Expansion feature is only activated when the nozzle has been unused
for more than one hour.
The number of hose expansion pulses and the duration period are defined within
the country code and cannot be altered except for France - refer to Appendix B
for more information.
Pulser Hide
This function works together with the Hose Expansion function by preventing
the display from showing the centilitres measured during the initial pressurisation
of the hydraulic system. It still counts the pulses but hides the display from the
customer to avoid confusion. When the number of pulses exceeds the set limit,
the display shows the delivered volume. The Pulser Hide feature is active at the
start of every filling.
The number of pulse hide pulses is defined within the country code and cannot
be altered.
Euro
When activated, this function will overrule the display layout previously selected
by the country code.
The resulting display layout will be:-
€
L
€ / L
Rounding method will be set to Type 1 (1 by 1).
The Euro functionality can only be selected with European country codes when
running a cold start or
via the Maintenance menu. Once activated, it can only
be reset by performing a cold start.
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