CNG
dispensers
TATSUNO
EUROPE
‐
Quick
User
Guide
,
revision
01,
March
2022
29
setting
the
counter
status
before
switching
it
off.
The
information
that
would
appear
on
the
display
before
the
counter
was
last
turned
off
is
displayed.
If
the
counter
was
operating
in
manual
mode,
then
it
is
possible
to
start
pumping
immediately
after
picking
up
the
nozzle.
If
the
counter
was
operating
in
automatic
mode,
it
waits
for
communication
with
the
control
computer
to
be
established
and,
if
necessary,
for
the
transaction
to
be
terminated
(payment),
if
it
was
not
terminated
regularly
before
switching
off.
Now
the
dispenser
is
ready
for
delivery.
5.2.1.
CNG
DISPENSER
COMMISSIONING
Setting
of
mass
flow
meter
zero
‐
point
All
CNG
mass
flow
meters
based
on
the
principle
of
the
Coriolis
effect
are
sensitive
to
the
setting
of
zero
(zero
flow
rate)
because
with
a
decreasing
flow
rate
the
measuring
error
increases.
The
setting
of
zero
must
be
carried
out
after
every
dispenser
installation
and
every
meter
exchange.
The
dispenser
counter
allows
carrying
out
the
procedure
of
setting
the
zero
‐
point
using
the
service
remote
controller.
The
following
procedure
is
intended
for
authorized
service
engineers
or
metrology
officials
only:
Close
the
inlet
ball
valves
at
the
dispenser
inlet
and
hang
the
filling
nozzles
in
the
dispenser
(all
filling
nozzles
must
be
hung
up
during
zero
point
setting)
Break
the
seal,
remove
the
counter
plate
cover
and
set
the
calibration
switch
SW1
‐
1
to
the
OFF
position.
Use
the
PDERT
‐
5S
service
remote
controller
to
enter
the
counter
service
mode
(<R>
+
password).
Setting
parameter
P97
to
1
activates
the
zero
point
setting
function.
The
counter
sends
a
command
to
set
the
zero
point
to
the
mass
meter
and
then
waits
for
a
response.
It
then
sends
information
that
the
zero
point
was
set
with
the
message
"DONE"
or
that
it
was
not
set
with
the
message
"FAIL".
Do
not
finish
the
setting
until
the
setting
function
displays
the
message
"DONE"!
NOTICE
If
the
zero
‐
point
value
is
not
correct,
or
the
process
of
zero
‐
point
not
passed
correctly
then
new
filling
is
not
allowed
and
error
message
E74
is
appeared).
NOTICE
The
amount
display
(€)
shows
the
current
value
of
the
zero
‐
point.
The
quantity
display
(kg)
shows
the
course
of
the
zero
‐
point
setting
procedure.
NOTICE
In
the
CNGmass
(Endress&Hauser)
meter,
the
course
of
the
procedure
is
signaled
by
an
increasing
number
1
‐
99.
After
reaching
the
value
99,
the
process
is
terminated,
and
the
message
"done"
is
shown.
Exit
service
mode
by
pressing
<R>
on
yellow
service
remote
transmitter
change
position
of
switch
SW
1
‐
1
to
ON
(PROTECTED)
Open
ball
valves
valves
at
the
dispenser
inlet.
Mass
meter
configuration
When
the
mass
meter
is
installed
into
new
dispenser
or
when
the
mass
meter
is
changed
to
another
one,
it
must
be
configured
by
the
calculator
TBELTM.
This
configuration
is
necessary
to
perform
via
parameter
P99
=
4444.
Function
is
enabled
only
in
case
when
switch
SW1
‐
1
is
in
position
OFF
only
(NOT
PROTECTED).
Switch
SW1
‐
1
is
placed
in
the
centre
of
the
TBELTM
processor
unit
and
protected
by
the
sealed
metal
cover.
After
start
of
function
P99
=
4444
the
counter
sends
the
necessary
parameters
to
the
mass
meter.
4
tbELtM
1000
300.0
10.00
30.00
2P
30
1
P97
