Periodic Maintenance Procedures
TM 787100 Rev (Af), May 2019
51
8
Maintenance Instructions
This section deals with preventive maintenance, describes possible faults in
detector operation and indicates corrective measures. Ignoring these
instructions may cause problems with the detector and may invalidate the
warranty. Whenever a unit requires service, please contact the
manufacturer or its authorized distributor for assistance.
8.1
Maintenance Instrumentation and Personnel
The detector
’
s maintenance requires ordinary tools and suitably qualified
personnel, who should be familiar with local codes and practices.
8.2
Preventive Maintenance Procedures
The detector must be kept as clean as possible. The viewing window and
the reflector flame detector must be cleaned on a periodic basis. The
frequency of cleaning operations depends upon the environmental
conditions and specific applications. The fire detection system designer will
give his recommendations.
To clean the detector:
1
Disconnect power to the detector before beginning any maintenance
including lens cleaning.
2
To clean the detector viewing window and reflector, use water and
detergent, and rinse with clean water.
3
Where dust, dirt, or moisture accumulate on the window, first clean with
a soft optical cloth and detergent, and then rinse with clean water.
8.3
Periodic Maintenance Procedures
In addition to preventive cleaning and maintenance, the detector should be
functionally tested every 6 months. This test should also be carried out if
for any reason the detector has been opened for any reason.
8.3.1
Power-Up Procedure
Perform the power-up procedure every time power is restored to the
system. Follow the instructions in
on page 47.
8.3.2
Functional Test Procedure
Perform a functional test of the detector as described in
on page 48.
