Hach BioTector B3500dw Maintenance Et Dépannage page 25

Message
111_TEMP HT VEILLE
112_TEMP BAS VEILLE
113_ERR CAPT TEMP
114_ALARME I/O
115_CO2_ANALYZER_WARN The operation of the CO
Tableau 3 System warnings (suite)
Description
The analyzer temperature increased to
more than 55 °C (131 °F) for more
than 2 minutes. The analyzer is in
standby mode.
The analyzer temperature decreased
to less than 2 °C (35 °F) for more than
2 minutes. The analyzer is in standby
mode.
The temperature difference between
the MPU (micro processor unit) and
analyzer temperature sensor is more
than ±15 °C (±27 °F).
Remarque : The MPU temperature sensor
is on the motherboard. The analyzer
temperature sensor is on the O
Board.
Changes in the Input/Output bus
extender MCP23S17 chips were
identified during the periodic checks
done automatically. The Input/Output
bus extender MCP23S17 chips have
read/write control registers.
Remarque : The Input/Output bus extender
MCP23S17 chips have read/write control
registers.
analyzer is
2
not correct.
Cause and solution
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.
Make sure that the ambient temperature is 5 to
45 °C (41 to 113 °F).
Remarque : When the analyzer temperature is more than
5 °C (41 °F) for more than 2 minutes, the analyzer
continues usual operation.
Make sure that the motherboard cover is installed
and the analyzer door is closed.
Make sure that the ambient temperature is less
than 45 °C (113 °F) and the analyzer is not in direct
sunlight.
Controller
2
When the analyzer senses a difference between
the requested and the read configuration registers
values, all of the devices on the SPI (serial
peripheral interface) bus are reset and re-initialized
automatically. Select FONCTIONNEMENT >
ARCHIVER DEFAUT. Acknowledge the warning
and tell technical support.
Select MAINTENANCE > DIAGNOSTICS >
SIMULER. Examine the ppm CO
CO analyzer.
2
Clean the lenses in the CO
Remove power to the analyzer, wait 30 seconds,
then apply power to the analyzer.
Examine the 24 V DC power to the CO
on the motherboard at wires N11 and N12.
For more tests, refer to the information sheet T019,
BioTector CO
Dépannage
response of the
2
analyzer.
2
2
Analyzer Troubleshooting.
2
analyzer
23