Hach BioTector B3500dw Maintenance Et Dépannage page 22

Dépannage
Message
52_CO2 HAUT DANS BASE
62_ARRET P. SMPL MAR
63_ARRET P. SMPL ARR
81_PRESSION ATM HAUTE
82_PRESSION ATM BASSE
83_TEMPS SERVICE
88_CONTROL O2 ALARM
92_AIR HT PRESS 2
20
Tableau 3 System warnings (suite)
Description
The CO level in the base reagent is
2
more than the ALARME CO2 BASE
setting.
Refer to MAINTENANCE >
CONFIGURAT. SYSTEME > SETUP
FAUTE > ALARME CO2 BASE.
Remarque : The CO level in the base
2
reagent is identified during a zero
calibration or zero check.
The sample pump stopped with its
rotation sensor set to on or the
operation of the rotation sensor is
incorrect (continuously on).
The sample pump stopped with its
rotation sensor set to off or the
operation of the rotation sensor is
incorrect (no rotation sensed).
The reading of the atmospheric
pressure sensor is more than 115 kPa.
The atmospheric pressure sensor
reading is set to 101.3 kPa (fault
operation mode).
The reading of the atmospheric
pressure sensor is less than 60 kPa.
The atmospheric pressure sensor
reading is set to 101.3 kPa (fault
operation mode).
Service is necessary
There is a communication problem
between the motherboard and the O
Controller Board.
The air pressure supply was more
than 2.0 bar for more than 5 seconds.
When the oxygen concentrator is on,
the air pressure supply is normally
between 0.9 bar to 1.5 bar. If the air
pressure does not decrease to normal
values, the air supply is isolated from
the analyzer and oxygen is not made.
Cause and solution
Make sure that the CO
container is in good condition. Make sure that the
base reagent container has no air leak. Identify the
quality of the base reagent. Replace the base
reagent.
Examine the rotation of the sample pump.
Examine the pump sensor signal. Look at DI15 in
DIGITAL ENTREE menu. Refer to MAINTENANCE
> DIAGNOSTICS > ETAT E/S > DIGITAL ENTREE.
Replace the sample pump. Refer to
rechange et accessoires
Examine ADC[05] in the ANALOG ENTREE menu.
Refer to MAINTENANCE > DIAGNOSTICS > ETAT
E/S > ANALOG ENTREE. The reading should be
approximately 4 V.
The operation of the pressure sensor is incorrect.
Replace the motherboard. Refer to
rechange et accessoires
Complete the necessary service tasks. Then, reset
the service counter to acknowledge the warning.
Select MAINTENANCE > DIAGNOSTICS >
SERVICE > RESET COMPTEUR SERVICE.
Make sure that LED 2 (L2) on the O
Board is on.
2
Examine the 24 VDC power on the O
board at terminals N01 and N02.
Examine the ribbon cable connections on the
board.
Removed and then apply power to the analyzer.
Replace the O Controller Board if necessary.
2
Refer to Pièces de rechange et accessoires
à la page 43.
The external air regulator is not operating correctly.
Decrease the external air supply pressure to
1.5 bar when the oxygen concentrator is not in
operation.
When the problem is fixed, acknowledge the
warning to reset the O
filter on the base reagent
2
Pièces de
à la page 43
Pièces de
à la page 43
Controller
2
Controller
2
Controller Board.
2