Alarms
5.2 Maintenance Request Alarm
LDS 6
Operating Instructions, 01/2009, A5E00295894-05
67
5.2 Maintenance Request Alarm
A "Maintenance request" alarm is set when a modification of the analyzer is needed. The
measuring ability of the analyzer may not be affected during the time this alarm is active.
However, to guarantee reliable measurement in the future, it may be necessary to carry out
corrective measures.
The following table shows the different alarm messages signaling for maintenance request
that can appear in the logbook. These can be individually deactivated using function 88.
Table 5- 2 Alarm messages
No. Error Message Possible Causes Action
W1 Opto module Laser damage.
Leaking reference cell.
Reference cell displacement.
Electronics damage.
Contact service.
W2 Laser current Change of laser current due to aging of laser. Contact service.
W3 External maintenance
request
Maintenance request from outside. Check external equipment.
W4 Set clock LDS 6 has been switched off. Set date and time.
W5 Ambient Analyzer Ambient temperature or pressure is beyond limits
specified in technical data.
Make sure that the ambient
temperature ranges between 5
°C - 45 °C and the ambient
pressure corresponds to a place
below 2000 m above the sea
level.
W6 Ambient Channel Ambient temperature is outside limits specified in
technical data.
Make sure that the ambient
temperature ranges between 5
°C - 45 °C.
W7 Analog Out Error in calibration of analog output. Re-calibration is necessary.
Contact service.
W8 Error Handler Analyzer Internal error log is full. Contact service.
W9 Error Handler Channel Internal error log is full. Contact service.
W10 Data Flow Analyzer Electronics failure in internal communication. Contact service.
W11 Data Flow Channel Electronics failure in internal communication. Contact service.
W12 Compensation
Temperature Limit
External temperature signal is outside the limits. Check signal.
Make sure that the temperature is
within the limits specified in
function 83.
W13 Compensation Pressure
Limit
External pressure signal is outside the limits. Check signal.
Make sure that the pressure is
within the limits specified in
function 82.
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