Det-Tronics X3302 Multispectrum IR Flame Detector - Manual (Page 16)

95-8576 14 9.2
STARTUP PROCEDURE
When installation of the equipment is complete, perform
the “Fire Alarm Test” below.
FIRE ALARM TEST
1. Disable any extinguishing equipment that is
connected to the system.
2. Apply input power to the system.
3. Initiate an
oi test (see “Magnetic oi / Manual oi ”
under Optical Integrity in the Description section of
this manual).
4. Repeat this test for all detectors in the system. If
a unit fails the test, refer to the “Troubleshooting”
section.
5. Verify that all detectors in the system are properly
aimed at the area to be protected. (The Q1201C
Laser Aimer is recommended for this purpose.)
6. Enable extinguishing equipment when the test is
complete.
TROUBLESHOOTING
WARNINg
The sensor module (“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.
1. Disable any extinguishing equipment that is
connected to the unit.
2. Inspect the viewing windows for contamination
and clean as necessary. The detector is relatively
insensitive to airborne contaminants, however, thick
deposits of ice, dirt, or oil will reduce sensitivity.
(Refer to the “Maintenance” section for complete
information regarding cleaning of the detector
viewing windows.)
3. Check input power to the unit.
4. If the fire system has a logging function, check the
fire panel log for output status information. See Table
3 for information regarding 0 to 20 mA output.
5. Turn off the input power to the detector and check all
wiring for continuity. Important: Disconnect wiring
at the detector before checking system wiring for
continuity.
6. If all wiring checks out and cleaning of the oi plate/
window did not correct the fault condition, check for
high levels of background IR radiation by covering
the detector with the factory supplied cover or
aluminum foil. If the fault condition clears within 6
minutes or less, extreme background IR is present.
Re-adjust the view of the detector away from the IR
source or relocate the detector.
If none of these actions corrects the problem, return the
detector to the factory for repair.
NOTE
It is highly recommended that a complete spare
be kept on hand for field replacement to ensure
continuous protection.
Table 3—Current Level Output Troubleshooting Guide
Current Level
(±0.3 mA)
Status Action
0 mA Power Fault
Check system
wiring
1 mA General Fault Cycle power 1
2 mA oi Fault Clean windows 2
3 mA Hi Background IR Fault
Remove IR source
or aim detector
away from IR
source
4 mA Normal Operation
20 mA Fire Alarm
1 If fault continues, return device to factory for repair.
2 See “Maintenance” section for cleaning procedure.
NOTE : For additional troubleshooting guides, refer to the Flame Inspector
Monitor manual (95-8581).