Fuel
Dispensers
TATSUNO
EUROPE
‐
Installation
and
User
Manual
,
revision
10,
January
2022
161
6.1.4.
CALIBRATION
OF
THE
PETROL
DISPENSERS
WITH
ULTRA
HIGH
FLOW
(/UH)
Very
high
‐
performance
fuel
dispensers
(above
120
L/min;
marked
/UH)
include
two
pumps
and
two
meters
‐
the
main
pump
&
meter
and
the
auxiliary
pump
&
meter.
Calibration
of
the
meters
is
performed
in
the
same
way
as
in
chapter
6.1.3,
only
the
following
procedure
must
be
used:
a)
disconnect
the
auxiliary
pump
b)
calibrate
the
main
meter
as
described
in
6.1.3
c)
connect
the
auxiliary
pump
d)
calibrate
the
auxiliary
meter
settings
as
described
in
6.1.3
NOTE
The
auxiliary
pump
can
be
disconnected
and
connected
either
directly
in
the
dispenser’s
electronic
cabinet
by
disconnecting
the
auxiliary
pump
motor
contactor
or
by
setting
a
parameter,
eg
PDEX:
P84
=
0
(OFF)
/
2
(ON).
PDEX5:
M8
/
P11
=
0
(OFF)
/
1.2…
(ON).
NOTE
In
the
case
of
automatic
electronic
calibration
of
the
meter
(PDEX5
counter),
it
is
not
necessary
to
mechanically
disconnect
the
pumps.
When
setting
parameter
M6
‐
P15
=
1
and
M6
‐
P15
=
2,
only
one
pump
(main
/
auxiliary)
is
always
switched
on.
