EUROSENS
Fuel
flow
meters.
Operation
manual.
ver.
1.6
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11
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30
2.8.
Flow
meter
design
and
operation
2.8.1.
Operation
principle
The
flow
sensor
measures
the
amount
of
fuel
flowing
through
the
measuring
chamber.
Pressurized
fluid
coming
through
the
inlet
nozzle
flow
sensor
in
the
inlet
of
the
measuring
chamber,
the
piston
slides
along
the
inner
surface
of
the
chamber
and
simultaneously
slides
along
the
jumper.
The
piston
displaces
fluid
enclosed
in
it
inside
and
outside
of
the
piston
chamber
through
its
outlet
to
the
outlet
port
(see.
Fig.1).
The
enclosure
provides
the
orientation
of
the
rotation
axes
of
the
cover
pin
with
the
magnets
and
the
hub
of
the
piston,
thanks
to
the
number
of
dimensions
of
the
cover
and
the
housing
which
provides
the
optimum
rotation
of
the
ring
chamber.
During
one
rotation
of
the
piston
volume
of
liquid
equal
to
the
volume
of
chamber
is
displaced.
In
this
case,
the
electronic
position
sensors
generate
pulses
as
the
turnover
of
the
piston,
which
are
transmitted
to
the
electronic
control
unit
for
the
selected
interface.
Fig.
1.
EUROSENS
measuring
chamber
operation:
1
–
inlet,
2
–
outlet,
‐
fluid
is
entering
the
measuring
chamber,
‐
fluid
in
measurement
process,
‐
fluid
is
going
to
leave
the
measuring
chamber.
2.8.2.
Operation
modes
Table
8
Flow
meter
modification
Flow
rate,
l/hour
Interference
eurosens
XYZV,
где
Y(max.
flow
rate)=
l/hour
Normal
flow
rate
Q
0
<
Q
≤
Q
max
Tampering
The
impact
of
constant
magnetic
field
for
more
than
10
seconds
Idle
Normal
operation
Overload
100
<
2
2
‐
70
70
‐
100
>
100
Attempts
are
fixed
250
<
5
5
‐
200
200
‐
250
>
250
500
<
10
10
‐
400
400
‐
500
>
500
