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Fault Finding
•
Check the 'O' ring seal on the enclosure cover to ensure that it is not damaged or perished; replace as required.
NOTE: That the ingress protection is compromised if the seal is not correct.
•
Clean the enclosure faceplate (inside) with a mild detergent solution and a soft cloth until the window is clear of
all contamination. Wash the window thoroughly with clean water and dry with a clean lint free cloth or tissue.
•
No-setting waterproof grease should be evenly applied to the fl ame path on both the enclosure cover and body.
•
Clean the detector lens. This should be done with a soft, dry and clean cloth. Avoid touching the electronics.
•
Clean the detector enclosure faceplate. Use a degreasing agent on the outside in order to remove deposits.
•
Visually inspect detector electronics and inside the enclosure body for any sign of damage or moisture, replace
or rectify as required.
•
The enclosure cover must be screwed on to a minimum of 5 full turns or until fully tight and secured using the
locking screw provided.
The remaining points cover detector function testing, this should be done on a continuous basis or every 6 months
depending on the environment.
•
Reinstate the detector back into service.
•
Ensure that 'inhibits' are applied, then, using the Dräger FS-5000, function test the detector. Note the detector
LED indicator, within the detector housing, changes colour to RED. Check the complete display system for
correct function and indication.
Functional Testing
The detector can be function tested using the Dräger FS-5000, which has been specifi cally designed to provide a
convenient means of fi eld testing the detector.
22
!
Use only Draeger approved parts and accessories with this
equipment.
!
Do not attempt to replace the window as the glass and the
front cover are individually matched pairs to me the stringent
requirements of the hazardous area certification.
!
To maintain safety standards, commissioning and regular
maintenance should be performed by qualified personel.
CAUTION
CAUTION
CAUTION
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