Hach-Lange PHOSPHAX indoor sc - Manual (Page 47)

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Section 7 Troubleshooting
7.1 Troubleshooting the controller
If entries are only implemented with a delay or are not accepted for
a short time, the delay may be caused by a busy data network.
Refer to the troubleshooting section in the sc1000 User Manual.
If, in normal operation, problems occur that are apparently caused
by the controller, restart the system.
After a software update, a system expansion or after an interruption
in the power supply, it may be necessary to set the system
parameters again.
Note all the values that are changed or entered so all the necessary
data can be used to configure the parameters again.
1. Save all important data.
2. Isolate the supply of power and wait for 5 seconds.
3. Reapply power to the controller.
4. Check all relevant settings.
5. If the problems still occurs, contact Technical Support.
7.2 Troubleshooting the analyzer
If the complete analysis instrument is not working, check whether
the humidity sensor has tripped. Fix the damage, dry the humidity
sensor and restart the system.
If the problems still occurs, contact Technical Support.
7.2.1 LED status
Table 7 LED Status and definitions
LED status Definition
green LED No errors of warnings
red LED Error
orange LED Warning
LED flashing No communication with controller
7.2.2 Error messages
Error displayed
Instrument
reaction
Cause Solution Reset error
TEMP.
< 0 °C/32°F?
Warms up and
goes into the
service state instrument was
below 4 °C (39 °F)
on power up
Check whether instrument is frozen
(Cleaning solution/sample/reagent/
standards). If necessary use
pre-warmed reagents. Thaw electrode,
delete error. Instrument will then
continue to warm up and start
Reset error
manually
TEST/MAINT>
RESET ERROR
ANALYZ. TOO
COLD
Instrument goes
into the service
state
Instrument interior
has been below
4 °C (39 °F) for
more than
5 minutes
Close instrument, check heating
Reset error
manually
TEST/MAINT>
RESET ERROR