Hach BioTector B3500dw Maintenance Et Dépannage page 24

Dépannage
Message
100_VANN ROT STOP:ON
101_VANN ROT STOP:OFF
102_ERREUR GEN OZONE
103_ERREUR VENT OZONE
107_ERR REFROIDISSEUR
108_ERR VENT REFROID
110_ALARM TEMP HT MLI
22
Tableau 3 System warnings (suite)
Description
The rotary valve stopped with the
rotation sensor on (sensor signal 1).
The sensor it not operating correctly
because it always shows on (sensor
signal 1).
The rotary valve stopped with the
rotation sensor off (sensor signal 0).
The sensor it not operating correctly
because it always shows off (sensor
signal 0).
The current through the ozone
generator decreased to less than 0.2 A
for more than 5 seconds.
The voltage on the ozone generator
fan decreased to less than 1.5 V (or
increased to more than 3.5 V) for more
than 5 seconds.
Remarque : The ozone generator fan is an
optional component.
The current through the cooler
decreased to less than 0.1 A for more
than 5 seconds.
The monitoring voltage on the cooler
fan decreased to less than 1.5 V (or
increased to more than 3.5 V) for more
than 5 seconds.
The analyzer temperature increased to
more than 50 °C (122 °F) for more
than 2 minutes.
Remarque : The analyzer added an
analysis delay time of 300 seconds
between each analysis cycle.
Cause and solution
Select MAINTENANCE > DIAGNOSTICS >
SIMULER > MFC. Set the MFC to 20 L/h. Examine
the rotation of the rotary valve. Select
MAINTENANCE > DIAGNOSTICS > STATUS
CONTROL O2. Look at the rotary valve signals (1 =
on, 0 = off) as the valve rotates.
Replace the rotary valve for the oxygen
concentrator. Refer to Pièces de rechange et
accessoires à la page 43.
When the warning is gone, the green LED
(Stepper) on the Oxygen PCB is on.
Examine Fuse 4 (F4) on the motherboard. Replace
the fuse if blown. Refer to
à la page 7. Make sure the fuse is fully in the fuse
holder.
Push the reset button on the motherboard.
Remove power to the analyzer, wait 30 seconds,
then apply power to the analyzer.
Select MAINTENANCE > DIAGNOSTICS >
SIMULER > GENERATEUR D'OZONE. Examine
the ozone generator current, which should be
between 0.35 A to 0.55 A.
Examine the fan operation in the ozone generator.
Examine the wiring on terminals N01 and N03 on
the ozone generator board.
Examine Fuse 3 (F3) on the motherboard. Replace
the fuse if blown. Refer to
à la page 7. Make sure the fuse is fully in the fuse
holder.
Examine the cooler wiring on the green terminal
block. Examine the wiring between the cooler and
the Termination Board (81204370_xx.).
Select MAINTENANCE > DIAGNOSTICS >
SIMULER > REFROID. Set the cooler to 100%.
Identify if the voltage on the peltier element of the
cooler is 10 V. If not, use the cooler kit to replace
the cooler fan and peltier element. Refer to
de rechange et accessoires
Examine the wiring between the cooler fan and the
Termination Board (81204370_xx.)
Measure the voltage on the cooler fan on the green
terminal block. Identify if the voltage is 24 V. If not,
use the cooler kit to replace the cooler fan. Refer to
Pièces de rechange et accessoires
Examine the filters in the fan and vent. Examine the
operation of the fan. Make sure that the ambient
temperature is less than 45 °C (113 °F) and the
analyzer is not in direct sunlight.
Remarque : When the analyzer temperature is less than
48 °C (118 °F) for more than 2 minutes, the analyzer
continues usual operation.
Remplacer un fusible
Remplacer un fusible
Pièces
à la page 43.
à la page 43.