BERMAD M10 - Page 53

Instruction Manual
5353
DETECTED
ANOMALY
POSSIBLE CAUSES
CONVERTER
BEHAVIOUR
DISPLAYED ICONS
& CORRESPONDING
ERROR CODE
POSSIBLE SOLUTIONS
Excitation
failure
Damaged meter; The measure is
forced to 0 and the
error condition is
displayed and logged
101
Contact service
center
Empty pipe
detected
/ Invalid
measure on
the measuring
electrodes
The sensor is at least half
empty
Air is injected and causes
turbulence; air bubbles/
pockets
Liquid conductivity is too low
An electric dispersion on
the process is aecting the
measure
A high source of
electromagnetic interference
is aecting the measurement
Incorrect grounding, on plastic
pipe: grounding rings are
missing, incorrect or damaged
electrical connection to the
sensor/ converter
The measure is
forced to 0 and
the error condition
is displayed and
logged; to save
battery energy the
coil excitation is
stopped until the
error condition
goes o
103
Check if the sensor
has been correctly
installed and if there
is air inside the pipe.
Make sure that the
sensor and converter
are properly
grounded.
Check the absence of
high electromagnetic
noise sources, caused
by inverters or other
power equipment
Temperature
exceeds
the nominal
converter
working range
The environment temperature
is over the working range;
The converter exposed to
direct sunlight
The error condition
is displayed
201
Ensure adequate
protection from
sunlight
Wet electronic
board
Water intake or a humidity
condensation inside the
converter case,
Battery compartment not
properly closed.
The error condition
is displayed
202
Contact service
center
Supply voltage
out of range
The battery pack is damaged
or empty
A wrong power source is
connected to the converter
The error condition
is displayed
301
Replace the battery
pack or connect the
correct power source
Pulses
overlapping
The pulse settings are not
compatible with the
measured flowrate
The error condition
is displayed
401
Change the settings
of the pulse volume
and duration (see
“4.6.2.1 Pulse output”
on page 30).
7.2 SELF DIAGNOSTIC
In this paragraph you will find the alarm messages that can be shown on the display when the relative
status icon appears. Each alarm message is accompanied by possible causes that generated it and the
possible solutions to be applied in order to restore the correct functioning of the flow meter.
During the measuring process M10 detects automatically if a fault condition occours and eventually stops
the measurement reporting an alarm indication on the display. The following table describes the various
alarm conditions and the behaviour of the converter.