Hach EZ Serie Manuel De L'utilisateur page 37

Error/Warning message
Result alarm
Sample alarm
Dispenser alarm
Event alarm (No air pressure,
Leak detected)
DI Alarm (No air pressure, flow
alarm)
Calculation alarm
No stream selected
Battery discharged
Section 11 Replacement parts and accessories
Refer to the expanded user manual on the manufacturer's website for the replacement parts and
accessories that are approved by the manufacturer.
Possible cause
The measured result is too high
or lower than the set values in
the results (F5 > Software >
Results > Alarm).
No sample found in the
analysis vessel at the start of
the analysis.
Dispenser is defective
The leak detector identified
fluid in the analyzer or there is
no pressurized air.
The external components are
defective (e.g., flow sensor, air
pressure sensor)
There is a mistake in the
programming of the calculation
result or when the infinite result
was measured (divide by 0).
The method was started with
no streams selected in the
automatic sequence.
The battery in the display is
discharged. Time and date
settings can be lost when
power is removed.
Solution
• Identify if the previous
calibration measured
correctly (slope ok?).
• Make sure that the sample
concentration is correct.
• Identify if the vessel is clean.
Clean if necessary.
• Examine if there is sample in
the sample line. Make sure
that there is not a blockage
in the tubing. Make sure that
the valves are operating
correctly. Examine if the
pinch valve tubing has a
leakage or does not stay
closed.
• Make sure that there is
sufficient sample in the
vessel and the photometer
operates correctly.
Examine the dispenser. Push
F2 > Dispenser to start the
dispenser again.
Look for leaks or fluid in the
analyzer. Examine if the
pressurized air is connected
and set to on.
Examine the connection and
status of the components.
Examine the calculation
formulas and the measurement
(AI).
Push F1 > Method > Playlist >
Automatic sequence and
select one or more stream for
the method.
Replace the battery in the
display. Refer to Figure 5
on page 15.
English 37