Specifications

Maintenance
Installation Handbook, AutroFlame X33AF PL Multispectrum IR Flame Detector, 116-P-X33AF/PL/DE, 2005-12-12,
Autronica Fire and Security AS
Page 17
7. Maintenance
IMPORTANT: Periodic flame path inspections are not recommended,
since the product is not intended to be serviced and provides proper
ingress protection to eliminate potential deterioration of the flame
paths.
WARNING: The “front” half of the detector contains no user
serviceable components and should never be opened. The terminal
compartment is the only part of the enclosure that should be opened
by the user in the field.
To maintain maximum sensitivity, the viewing windows of the X33AF
PL must be kept relatively clean. Refer to the procedure below for
cleaning instructions.
7.1 Cleaning Procedure
CAUTION: Disable any extinguishing equipment that is connected to
the unit to prevent unwanted actuation.
To clean the windows and oi plate, use window cleaner (part number
116-001680-001) and a soft cloth, cotton swab or tissue and refer to
the following procedure.
1. Disable any extinguishing equipment that is connected to the
unit.
2. Since the X33AF PL is less affected by contamination than other
detectors, removal of the oi plate is needed only under extreme
conditions. In addition, it is not necessary to achieve perfect
cleanliness, because slight films of oil and/or salt do not significantly
absorb IR. If a fault condition is still indicated after cleaning, remove
and clean the oi plate using the following procedure.
3. Clean all three viewing windows and reflector surfaces thoroughly
using a clean cloth, cotton swab or tissue and Det-Tronics window
cleaning solution. If a stronger solution is needed, isopropyl alcohol
may be used.
7.2 Oi Plate Removal
1. Loosen the two captive screws, then grasp the oi plate by the visor
and remove it from the detector. See Figure 5.
2. Thoroughly clean the oi plate reflective surfaces, holding it by its
edges to avoid leaving fingerprints on the inside reflective surface.
3. Re-install the oi plate. Ensure that the plate is flat on the detector
surface. Tighten the oi plate screws securely (40 oz/inches).