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2, the vapour/gasoline ratio must be equal to or greater than 0.95 but less than or equal to 1.05. The actual
operation of the vapour recovery system is indicated on the display of the dispenser depending on the type of
display used either by the display segment or by the green LED or by the two‐arrow pictogram lit.
A malfunctioning vapour recovery system or faulty system may be signalled:
an unlit LED or display segment
non‐illuminated pictogram with white arrows
lit pictogram with red arrows and an exclamation mark
the error message E54, E55 or E56 on the display, see the article 6.2.1
The operation of the vapour recovery system can be automatically monitored by a control unit coupled to a
vapour flow sensor located on the return pipe in the dispenser, e.g., VAPORIX (FAFNIR) or Vareco Plus (TST). The
vapour monitoring system compares the volume of extracted vapours with the volume of filled fuel at each
delivery and stores the data in the control unit. If the vapour/gasoline ratio is not within the specified limits (95%
to 105%), it sends a signal to the counter of the dispenser which, if the defect is not removed within 72 hours,
does not allow gasoline to be delivered from the dispenser. According to European Directive 2009/126/EC Art.
5, the vapour recovery system must be officially inspected at least once a year. If the dispenser is equipped with
monitoring of the vapour recovery system, the official examination is necessary at least every three years.
NOTICE
In case of suspicion of malfunctioning of the recovery or detection of malfunctioning of the signalling,
the operator is obliged to notify this fact immediately to the service organization to carry out the inspection and
to remedy the defect.
5.3.6. VAPOUR RECOVERY SYSTEM TEST
The PDEX or PDEX5 dispenser counter allows you to perform a simple test of the vapour recovery system
of a dispenser according to EN 16321‐2:2013 article 5.4. and a simple functional test without delivering
fuel or shutting down the dispenser communication with the POS. It is therefore a so‐called dry test, in
which the fuel flow is only simulated. Only a manager service remote controller is required to run the test.
To measure the air flow through the fume extraction system, a gas meter with a dispensing nozzle adapter
must be used, for example TATSUNO VAPOR RECOVERY KIT (TATSUNO EUROPE) or SELF ADAPTION SET
FOR VAPOR RECOVERY type MKNE‐1094 (BÜRKERT) ‐ see Figure 83.
Test progress:
1) Before performing the test, it is necessary that the filling point is at idle state, i.e., all nozzles are in
nozzle boots and the last transaction paid. Press the <8> key on the manager or service remote control
to start the test mode. The quantity display line displays the value of the simulated fuel flow, whose
default value
Q
= 38L/min. If we want to set a different value of the simulated fuel flow, then use
the <+> and <‐> keys to change the value
± 0.5 l/min, or use the <>> and <<> keys to
change the value ± 5.0 l/min. The amount
display line shows the required air flow
the vapour recovery system
expected air flow 41 L/min
simulated fuel product flow 38 L/min
Q
through
Q =
Q . k
, (e.g., 41.0 l/min = 38.0 l/min x 1.08).
144
TATSUNO EUROPE a.s., www.tatsuno‐europe.com
P 38
41
0
.
0
.
tESt
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