Hach-Lange FILTRAX eco - Manual (Page 46)

46
Troubleshooting
6.3 Malfunctions
Text is displayed — the red indicator light is lit and the fault relay
contact is set.
6.4 Voltage drop (power failure)
If the power supply is interrupted (e.g. due to a power failure), no
indicator light is lit. The warning relay contact and fault relay contact
are automatically closed.
N O T I C E
The instrument may be damaged. Take appropriate counteractive
measures as soon as possible.
Table 7 Malfunctions
Malfunctions displayed Definition Resolution
WARM UP MODE!
The temperature in the housing is < 1 °C [34 °F],
the instrument is warming up
Wait until the heater has raised the
temperature inside the housing to > 1 °C
[34 °F] — this warm-up phase then takes
another 30 minutes. Keep the door closed
during this time.
DEVICE ERROR
Serious electronic error/bus error.
Normal operation no longer possible.
Unplug from the mains for 1 minute.
If the error is still present: Call customer
service.
TEMP.SENSOR
Temperature sensor faulty or not installed
Note: Normal operation is stopped because it is
not possible to regulate the temperature. Check the temperature sensor connection.
If the error is still present: Call customer
service.