ACCESSING PC BOARD AFTER PIR IS MOUNTED
To enable or disable the alarm LED, or Pulse Count, you will need
to access the PC board located in the PIR. Remove the cover
from the PIR by pressing it in gently and turning it
counterclockwise (to the left).
To replace the cover, align the tabs on the cover's edge with the
notches on the base's rim, press the cover gently in, and turn it
clockwise (to the right).
Interchangeable Optional Lens (997WD)
(Available only outside of the U.S.A.)
This optional integrated lens/cover (where it is available) may be
used to to provide greater coverage for the 997.
Changing Lenses
Remove the existing cover on the PIR and replace it with the new
No. 997WD cover (which is equipped with the optional lens).
After changing lenses, a walk-test must be performed.
TEST PROCEDURES
Important: Two-minute warm-up time is required after applying
power. Testing should be conducted with the protected area
cleared of all people. Disarm the protective system's control
during the test procedure to prevent reporting of unwanted
alarms.
Walk-Test
1. Pulse Count in the PIR must be "OFF" (jumper plug
removed) to provide instant response. The Alarm LED must
be enabled at this time (LED jumper plug removed).
2. With the cover installed on the PIR, walk through the
protective zones, observing that the PIR's LED lights
whenever motion is detected (the LED serves as a walk-test
indicator during this procedure).
Note: With pulse count "OFF" (instant), the LED stays lit (and
the alarm relay contacts remain open) for approximately 1 to 3
seconds after detecting motion.
3. If pulse count is to be used in this installation, install the
pulse count jumper plug on the pulse count pins, and repeat
the walk test procedure. With pulse count "ON," the LED
serves as an alarm indicator.
The absolute range of all PIR units is subject to variation
because of different types of clothing, backgrounds and ambient
temperature. For this reason, ensure that the most likely intruder
routes are well within the PIR's protective zones and that walk-
testing is carried out along these routes.
After the walk-test is complete, the LED may be disabled if
desired (LED enable/disable plug installed).
MAINTAINING PROPER OPERATION
In order to maintain the detector in proper working condition, it is
important that the following be observed by the user.
1. Power should be provided at all times. Loss of power to
the unit will result in the alarm contacts reverting to an alarm
state. The unit's DC source should have standby power
available for at least 4 hours of operation during
emergencies.
2. Units should never be relocated without the advice or
assistance of the alarm service company.
3. The physical surroundings of the protected area should
not be changed. If furniture or stock is moved, or air-
conditioning or additional heating is installed, the system
may have to be readjusted by the alarm service company.
4. Walk-tests should be conducted frequently (at least
weekly) to confirm continued proper coverage by each
detector.
TROUBLESHOOTING
INTERMITTENT ALARM (LED OPERATIVE)
Probable Causes:
A. Rapid temperature change. Check for electric or gas
heaters, open flames, electric arcs, etc..
Remedy: Locate
necessary.
B. Drafts causing drapes, light fixtures, display material to
move.
Remedy: Eliminate source of motion.
INTERMITTENT OR CONTINUOUS ALARM
Probable Causes:
A. DC voltage supplied to detector is inadequate, intermittent,
or polarity reversed.
Remedy: Ensure that proper polarity and adequate voltage
is supplied and that wiring is intact (no opens or
shorts) and connections secure.
B. Protective loop is interrupted (open).
Remedy: Determine whether interruption is in protective
loop wiring or at detector's alarm relay contacts.
Disconnect protective loop at detector relay
contact terminals and check continuity across
terminals. If absent at terminals (and proper
voltage is supplied to the detector), return unit for
service. If present, check protective loop wiring.
LED INOPERATIVE
Probable Causes:
A. LED enable/disable plug is installed.
Remedy: Remove LED enable/disable plug.
B. LED malfunction. Check for broken/shorted leads.
Remedy: Return unit for service.
NO ALARM WHEN MOTION TAKES PLACE IN THE
PROTECTED AREA (LED DOES NOT LIGHT)
Probable Causes:
A. Detection area has changed. Possibly due to repositioned
furniture or equipment in the protected area.
Remedy: Caution customer about layout changes.
TO THE INSTALLER
Regular maintenance and inspection (at least annually) by
the installer and frequent testing by the user are vital to
continuous satisfactory operation of any alarm system.
The installer should assume the responsibility of developing
and offering a regular maintenance program to the user, as
well as acquainting the user with the proper operation and
limitations of the alarm system and its component parts.
Recommendations must be included for a specific program
of frequent testing (at least weekly) to ensure the system's
operation at all times.
3
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