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Troubleshooting
8. Test the flame detector using a flame simulator. Dräger recommends the
Dräger Flame Simulator FS-5000. The status LED will turn red when it
detects the simulated flame. Failure of the flame detector to respond to the
flame simulator should be reported to Dräger.
9. Switch the flame detector off and ensure a fault is initiated within the control
system. Check the mA output is indicating 0 mA.
10. Switch on the flame detector and ensure the status LED indicates green.
Ensure the mA output is 4 mA and remove the system inhibits.
4
Troubleshooting
There are no parts within the detector assembly that are serviceable by the
user. If any fault is suspected within the detector assembly, it should be returned
to Dräger for investigation and repair.
When investigating power supply faults, it is important to check that all voltages
are within the operating range (18 - 32 Vdc) of the flame detector under full load
conditions.
Contact Dräger if the error remains after all remedy actions have been
attempted, or if the error is not described.
Error
Cause
LED not illuminated
Power off
No power supply; indi-
cates power distribution
cause
LED or detector failure
14
Error
LED is steady yellow
5
There are no parts within the detector assembly that are serviceable by the
user. Once installed there are no user-serviceable parts within the flame
detector. The only servicing requirements are to ensure that the detector
assembly is fully functional, and that the enclosure front cover window is clean.
5.1
Remedy
Component/System
Turn power on.
Check and repair detec-
Enclosure
tor voltage input (fuses,
Complete equipment
cabling, connecting junc-
tion boxes etc.)
Complete equipment
Contact Dräger for fur-
ther measures.
This maintenance schedule is intended for guidance only. The actual level of
maintenance required is dependent on the operating environment and the
likelihood of damage or the rate of contamination from oil, sea spray, deluge
system etc. Dräger recommends to regularly review maintenance reports and
adapt the maintenance period to the operating environment.
Periodic maintenance checks should be performed in accordance with
appropriate codes of practice or local regulations. For example, in Europe
EN 60079-17 applies.
Cause
Optical cause
Low voltage cause
Unknown cause
Maintenance
Maintenance intervals
Task
Inspect and clean
Functional test
Detailed Ex inspection
Remedy
Clean enclosure front
cover window.
Check and repair detec-
tor voltage input (fuses,
cabling, connecting junc-
tion boxes etc.)
Contact Dräger for fur-
ther measures.
Every
Every
6 months
12 months
Yes
Yes
Yes
Instructions for use
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