ADEMCO 997 - User Manual

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 )

Summary

General Information and Protection Patterns

General Information

Overview of the ceiling-mounted PIR motion detector and its features like 360° coverage and installer-selectable options.

Protection Patterns

Details the 360° protection pattern with the standard Fresnel lens, including visual diagrams of coverage.

Configuration and Features

LED Enable;Disable

Instructions for enabling or disabling the detector's LED indicator for walk-testing or normal operation.

Tamper Switch

Information on the built-in tamper switch that activates when the cover is removed.

Pulse Count Option

Explanation of the Pulse Count feature for minimizing false alarms and selecting 1- or 2-event response.

Installation, Testing, and Troubleshooting

Accessing PC Board

Guide on how to access the PC board for adjusting settings like LED and Pulse Count.

Test Procedures

Detailed steps for conducting walk-tests to verify detector operation and coverage.

Maintaining Proper Operation

Recommendations for ensuring the detector's continued reliable performance through regular checks.

Troubleshooting

Guidance on diagnosing and resolving common issues like intermittent alarms or inoperative LEDs.

Guidance for Installers

Essential advice for installers regarding maintenance, user training, and system integration.

Limitations and Warranty

Limitations of Passive Infrared Motion Detector

Outlines the inherent limitations and factors affecting the performance of PIR detectors.

ADEMCO Six-Year Limited Warranty

Details the warranty coverage, terms, conditions, and exclusions for the PIR detector.

ADEMCO 997 Specifications

General

Brand	ADEMCO
Model	997
Category	Security Sensors
Language	English