997
Ceiling-Mounted Passive Infrared Motion Detector
INSTALLATION INSTRUCTIONS
GENERAL INFORMATION
This passive infrared motion detector is a ceiling-mounted unit
employing a 360°, 31-zone Fresnel lens and offering an efficient
protection pattern for commercial and residential applications.
The detector senses sudden and slight changes in temperature
within the area of detection; thus, when an intruder crosses or
enters any zone, the resulting change in infrared energy is
detected for alarm reporting. Best coverage will be obtained if
the PIR is mounted such that the likely direction of intruder
motion is in the direction shown in Figure 1.
The Detector features installer-selectable Alternate Polarity
Pulse Count, which provides protection against false alarms,
and an LED enable/disable feature (installer-selectable).
INSTALLATION HINTS
•
Do not install where the detector is exposed to direct sunlight
or directly above strong sources of heat.
•
Make sure the detection area does not have obstructions
(curtains, screens, large pieces of furniture, plants, etc.) that
may block the pattern of coverage.
•
Avoid locating a detector in areas that contain objects likely to
produce a rapid change in temperature, such as central
heating, radiators or ducts (or heaters of any kind), air
conditioners, open flame, etc.
•
Do not mount on an unstable surface.
Important:
Avoid running alarm wiring close to heavy-duty
electrical power cables.
PROTECTION PATTERNS
The PIR’s protection pattern with the standard lens is shown
below.
Note:
An optional, easily changed, 34-zone lens (No. 997WD)
is available (outside of the U.S.A. only) that will provide greater
coverage when needed (see
INTERCHANGEABLE OPTIONAL
LENS
).
Detection Area – Standard Lens
TOP VIEW
CENTER ZONE
ZONES B (6 ZONES)
ZONES C (12 ZONES)
ZONES D (12 ZONES)
11.5 ft
(3.5m)
11.5 ft
(3.5m)
18 ft
(5.5m)
18 ft
(5.5m)
0
12 ft
HEIGHT
(3.66m)
8 ft
HEIGHT
(2.4m)
NOTE: EACH ZONE
CONSISTS OF TWO
FIELDS (INCLUDING
THE CENTER ZONE)
TOP VIEW
SIDE VIEW
SPECIFICATIONS
Detection Method:
Passive Infrared.
Coverage:
With Standard Lens:
23-ft (7m) diameter @ 8 ft (2.4m) height,
11.5-ft (3.5m) radius.
36-ft (11m) diameter @ 12-ft (3.7m) height,
18-ft (5.5m) radius.
With Optional Lens:
44-ft (13.4m) diameter @ 8-ft height,
22-ft (6.7m) radius.
55-ft (16.76m) diameter @10-ft (3.1m)
height, 27.5-ft (8.4m) radius.
Pulse Count:
1- or 2-event, installer-selectable.
Detectable
Walk Rate:
0.5 – 5ft/Sec (0.15 – 1.5m/Sec).
Indicator:
Red LED with enable/disable feature.
Mounting
Height:
12-ft (3.7m) maximum for standard lens,
10-ft (3.1m) maximum for optional lens.
Voltage:
12VDC nominal (voltage reversal makes PIR
inoperative).
Alarm Relay:
SPST, Form A, 0.5A max. contact rating @
30VDC. Reed relay, 15 ohm protective resistor.
Current Drain:
17mA.
Standby
Capability:
Power source should be capable of at least
4 hours of battery standby.
Operating
Temperature:
32°F – 122°F (0°C – 50°C).
Operating
Humidity:
Up to 95% RH (max), non-condensing.
Dimensions:
3-1/2” (89mm) diameter x 1” (25.4mm) high.
INSTALLING AND WIRING THE PIR
The ceiling on which the PIR is to be mounted must be firm and
vibration-free.
1.
Select a location
that will provide the coverage desired from
the lens in use. Wiring (from the control, etc.) to be connected
to the PIR should be brought to this location. The ceiling
wiring hole should be no more than 5/16” (8mm) in diameter.
2.
Remove the cover
from the PIR by pressing it in gently and
turning it counterclockwise (to the left).
®
N6206-1EN (
Part of N6206-1 8/99
)
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