95-8549
6
8.3
INSTALLATION
NOTE
The recommended lubricant for threads and
O-rings is a silicone free grease (part number
005003-001) available from Detector Electronics.
Under no circumstances should a lubricant
containing silicone be used.
DETECTOR POSITIONING
Detectors should be positioned to provide the best
unobstructed view of the area to be protected.
The following factors should also be taken into
consideration:
• Identify all high risk fire ignition sources.
• Be sure that enough detectors are used to adequately
cover the hazardous area.
• Be sure that the unit is easily accessible for cleaning
and other periodic servicing.
• Locate and position the detector so that the fire
hazard(s) are within both the field of view and
detection range of the device. Refer to Appendix A
for specific information.
• The detector should be aimed downward at least 10
to 20 degrees to allow lens openings to drain. See
Figure 1.
The detector should be positioned so
that its field of view does not cover areas outside
the hazardous area.
This will minimize the possibility
of false alarms caused by activities outside the area
requiring protection.
• For best performance, the detector should be
mounted on a rigid surface in a low vibration area.
• Dense fog, rain as well as certain gases and vapors
(see Table 3) can absorb UV radiation and reduce
the sensitivity of the detector.
• Verify that all detectors in the system are properly
aimed at the area to be protected. (The Det-Tronics
Q1201C Laser Aimer is recommended for this
purpose.)
• If possible, fire tests should be conducted to verify
correct detector positioning and coverage.
• For ATEX installations, the X2200 detector housing
must be electrically connected to earth ground.
DETECTOR ORIENTATION
Refer to Figure 2 and ensure that the
oi
plate will be oriented
as shown when the X2200 is mounted and sighted. This
will ensure proper operation of the
oi
system and will also
minimize the accumulation of moisture and contaminants
between the
oi
plate and the viewing windows.
IMPORTANT
The
oi
plate
must
be securely tightened to ensure
proper operation of the
oi
system (40 oz./inches
recommended).
PROTECTION AGAINST MOISTURE DAMAGE
It is important to take proper precautions during installation
to ensure that moisture will not come in contact with
the electrical connections of the system. The integrity
of the system regarding moisture protection must be
maintained for proper operation and is the responsibility
of the installer.
CENTER AXIS
OF DETECTOR
FIELD OF VIEW
CENTER AXIS
OF DETECTOR
FIELD OF VIEW
INCORRECT
CORRECT
NOTE: DETECTOR MUST ALWAYS BE AIMED
DOWNWARD AT LEAST 10 TO 20 DEGREES.
B1974
Figure 1—Detector Orientation Relative to Horizon
UV VIEWING WINDOW
DETECTOR STATUS INDICATOR
oi
PLATE
PLACE MAGNET
HERE TO INITIATE
MAGNETIC
oi
A2171
oi
MAGNET
Figure 2—Front View of the X2200
