Wayne GLOBAL VISTA CNG, Инструкция по эксплуатации

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© Copyright
2008-03-20 V0 Rev.01.0
- 20 - WT004139
Configuration parameters
The proper functioning of the head is guaranteed by programming a series of configuration parameters,
divided into two groups:
•
accessible parameters;
•
non-accessible parameters (protected by a metric seal);
To set these parameters it is necessary to use the four buttons on the display.
The final part of the manual indicates the operating procedures to change prices and define the operating
modes of the dispenser.
For all other functions refer to the specific manual of the head.
Error conditions
During operation, the head performs a constant error diagnostic. Once an error is identified, the head:
•
immediately stops fuelling (blocking condition);
•
lights a red led;
•
shows the error code corresponding to the identified error on the unit price display;
When an error is identified during fuelling, the unit price displays the «bloc» message and the error code is
displayed only after the dispensing selector is turn to OFF.
Electrical components used in hazardous areas
The dispenser can be used in potentially explosive areas due to the presence of gas.
The whole dispenser is marked CE/ATEX as a device of group II, category 3 G even in compliance with
prEN13638.
For safety, the electrical system uses single components (junction boxes, meter, pressure transmitter,
electro-valves, etc.) suitable for group II, category 2 G.
MAINTENANCE
The dispenser leaves the factory only after passing accurate tests (hydraulic and electrical). A correct
installation and use should guarantee proper functioning.
In any case, in order to maintain the dispenser’s optimal conditions in time and guarantee its safety, the
station manager must check the components listed in the table below periodically.
Component
Intervention
Pneumatic actuator Periodically replace all gaskets and piston slides; check cylinder wear
Electronics and measuring tube Perform measuring tests during official inspections
Filter Disassemble the filter and clean filtering element or replace it if
damaged
Delivery hose Replace if damaged
Three-way valve Check sealing of gaskets and replace if damaged
Check valve Check sealing
Vent valve Check sealing of gaskets and replace if damaged
Gas inlet valve Check sealing of gaskets and replace if damaged
The operational life of these components depends of different conditions such as, for example, the quality of
the product being dispensed, environmental characteristics, climatic conditions and method of use.
The periodicity of maintenance operations must be established as a consequence.
Maintenance operations must be performed exclusively by qualified technicians, trained for this purpose.
Maintenance operators will have to use all personal safety protection (proper shoes, gloves and glasses, etc).
Maintenance operators must be knowledgeable of all measures to adopt in order to prevent any explosive
reaction in the presence of gas (for example, avoid naked flames, sparks, and electrostatic discharge).