Environnement MP101M, Technical Manual

Page: 159 / 196

Duplication prohibited
MP101M
Environnement
S.A
5–5
SEPTEMBER 2013
DISPLAY CAUSE POSSIBLE ACTIONS
Threshold D. – The periodic or cyclic
measurement exceeds
the superior allowed
value (1000 µg/m
3
or
1000 mg/m
3
).
– Change the measurement units: replace
µg/m
3
by mg/m
3
in the « CONFIGURATION

Offsets and units » screen.
– Check the source positioning in front of the
paper. If it is not correctly positioned, check
correct operation of the positioning motor.
– If the motor does not work, check the + 15V
and - 15V voltages.
Clogging – The system remained
more than 360 s (6 min)
running in regulation
valve control mode and
:
1013
750
1
A
P
P


.
– Check the pressures: Upstream pressure,
Downstream pressure, Atmospheric
pressure.
– Check the correct operation of the valve
motor control (refer to the screen
« TESTS

Mother board Inlets/outlets » ).
– Check the valve motor.
– Check the valve.
– Check the fluid circuit.
Flow rate – The flow rate exceeds
the allowed interval
centered around the 1
m
3
/h control.
– Check the correct operation of motor valve
control (refer to the screen
« TESTS

Mother board Inputs/Outputs » ).
– Check the valve motor.
– Check the valve.
– Test for leaks in the fluid circuit.
R.A.N. counting – The analyzer detects an
abnormally high rate of
natural radioactivity. – Inform the appropriate authorities as soon as
possible.
Paper torn up – Counting value provided
by the Geiger-Müller
> 8500 counts/s. – Check the position of the filter paper ribbon.
Reposition it again.
– Carry out a contamination test.
– Check the source positioning in front of the
paper. If the source is not correctly
positioned, check correct operation of the
positioning motor. If the motor does not work:
check the + 15V and - 15V voltages.