ADEMCO 996EX, 998EX - Passive Infrared Motion Detector Installation Manual

GENERAL INFORMATION

These passive infrared motion detectors are versatile wallmounted units employing Fresnel lenses and offering efficient protection patterns for commercial and residential applications. Best coverage will be obtained if mounting is selected such that the likely direction of intruder motion is across the pattern.

The 998EX detector is equipped with downward-looking optics to cover the normally dead zone directly beneath a detector (not present on the 996EX).

The detectors are shipped with the standard wide angle lens installed. An interchangeable lens — the 99LR Long Range lens, is supplied with the 998EX detector, but is an optional lens for the 996EX. An optional swivel mounting bracket is available under part number 998SB.

SPECIFICATIONS

Protection Pattern, Standard Lens

Protection Pattern, No. 99LR Long Range Lens (optional for 996EX)

INSTALLATION

Normal Surface Mounting

Mount the unit to a firm vertical surface. The wall wiring hole should be no more than 8mm diameter.

1. Remove the front cover as shown in Figure 1.
   
   
   NOTE THE MOUNTING ORIENTATION OF THIS DETECTOR. WIRE ENTRY IS AT THE TOP, AND LENS IS AT THE BOTTOM!
2. Refer to Figure 2. Knockout holes A in the base are for normal surface mounting on a wall (slide PC board up for access to bottom holes, down for access to top holes). For corner mounting, see Corner Mounting. Also break out the desired wire entry hole at this time (marked X1 or X2 in Fig. 2).
   
   KNOCKOUT HOLES
   A = SURFACE MOUNTING (4)
   B = CORNER MOUNTING (4)
   X1 = TOP WIRE ENTRY (SURFACE WIRING)
   X2 = REAR WIRE ENTRY (IN-WALL WIRING)
3. Feed wiring emerging from the wall through the wire access hole near the top of the detector base. Make sure wires have sufficient slack to allow the PC board to be moved up and down freely when the wires are connected to the terminals on the board.
4. Mount the base. Note the mounting orientation of this detector– wire entry at the top, lens at the bottom!
5. Refer to the WIRING CONNECTIONS section before replacing the front cover.

Corner Mounting

Knockout holes B in the base are used for corner mounting on a wall (slide PC board up for access to bottom holes, down for access to top holes).and mount in selected corner with 4 screws (see Fig. 3).

Note the mounting orientation of this detector– wire entry at the top, lens at the bottom! Make sure the board is positioned so that the arrow is in line with the appropriate setting on the graduated scale (see Fig. 5 and Table 1).

*MEMORY OF ALARM NOT AVAILABLE ON 996EX

TERMINALS:
1: 12VDC (+)
2: 12VDC (–)
3: 4: } RELAY (OPENS ON ALARM)
5: MEMORY *
6: 7: } TAMPER

#1: UP = LED DISABLE DOWN = ENABLE
#2: UP = INTERMEDIATE PULSE COUNT DOWN = STANDARD PULSE COUNT
998EX ONLY _M #3: UP = MEMORY DISABLED DOWN = MEMORY ENABLED

Changing Lenses

(if required)

1. Remove front cover.
2. Release the lens support frame located in front cover as follows: insert the blade of a small screwdriver between the locking tab and the detector case in each of the four corners of the frame, and lever each tab upward to release. See Figure 4. When all four corners are released, remove the lens support frame.
3. Remove the existing lens and replace with the replacement lens. The lens must be installed with the smooth side facing outward. Also, the lens should be oriented with its part number on the upper righthand side (see Fig. 4). Be sure to center the lens.
   
   Note: Lens surface should be free of dirt, foreign matter and fingerprints. Use a clean dry soft cloth to wipe lens surfaces.
4. Insert the lens support frame into its original position and then press downward on the frame so that the lens locking tabs snap into position in each of the four corners.
5. Refer to Vertical Pattern Adjustment and Table 1 for recommended detector pattern setting for various mounting heights and protection ranges.
6. Replace front cover.

Horizontal Adjustment of Lens

The protection pattern can be moved to the left or right by horizontal adjustment as follows:

1. Remove front cover.
2. Grasp the lens firmly on both sides (front and back) and slide the lens to the left or right, as needed. The lens may be moved as much as 4° (from center) in either direction.
3. Replace front cover.

After adjustment, conduct a walk test to ensure proper coverage of the area to be protected (see Test Procedures ).

Vertical Pattern Adjustment

The protection pattern can be raised or lowered by re-positioning the PC board in the detector. A graduated scale to the left of the board (see Fig. 5) indicates the approximate number of degrees by which the pattern can be raised (max. +5°) or lowered (max. -20°). To make this adjustment, slide the board upward or downward by the number of degrees required. After any adjustment, conduct a walk test to ensure proper coverage of the area to be protected (see Test Procedures ).

Table 1 indicates the recommended setting at various mounting heights and protection ranges for each of the available lenses.

Lens Masking

The supplied masking strips can be used to produce a protection pattern that suits the particular requirements of the protected area, or eliminate coverage from areas where you anticipate environmental disturbances that might reduce the PIR s stability (a heater or other heat-producing object for example). Simply peel off the appropriate pressure-sensitive adhesive strip(s) and apply over the desired lens segment(s). Be sure to affix the masking strips to the inside of the lens (not the outer, smooth side). Each lens segment that is masked results in the elimination of one zone of protection from the coverage pattern.

WIRING CONNECTIONS

Bring all wires in through the wire access slot at the top of the detector base (near the terminal block) and connect to the screw terminals (see Fig. 5 for wiring details). Seal any openings in the base with foam or RTV (not supplied) to prevent drafts or insects from entering the unit. Apply power only after all connections have been made and are inspected.

LED ENABLE/DISABLE OPTION

To enable the LED, set the DIP switch #1 DOWN (see Fig. 5 for switch location). To disable the LED, set DIP switch #1 UP. Use a small pointed tool to move the switch handle up or down.

PULSE COUNT OPTION

For Intermediate Pulse Count, set the Pulse Count DIP switch #2 UP (see Fig. 5 for switch location). For Standard Pulse Count, set DIP switch #2 DOWN. Use a small pointed tool to move the switch handle up or down.

Standard Pulse Count: This is the recommended setting for maximum false alarm immunity. It tolerates environment extremes on this setting.

Intermediate Pulse Count:This is the recommended setting for any location where an intruder is expected to cover only a small portion of the protected area. It tolerates normal environments on this setting.

TAMPER SWITCH

The detector is equipped with a cover tamper switch (terminals 6 and 7.) These terminals should be connected to the normally closed tamper loop on control (see Fig. 5).

LED MEMORY OF ALARM OPTION

(998EX ONLY)

When used with a control that can provide a suitable switched voltage (12V), the detector can be programmed to provide intrusion memory, as follows:

1. Set DIP switch # 3 DOWN (memory enabled).
2. Connect switched 12V from the control to terminal 5 on the detector. Make sure that the proper switched voltage is used:

In the disarmed mode, the LED will operate in accordance with the LED DIP switch # 1 position.

In the armed mode, the LED is inoperative and those PIRs that report an alarm will latch the memory circuit. When the system is subsequently disarmed, those units with memory of alarm will light their LED s, which will stay lit until cleared.

Arming the system again will reset the memory circuits and extinguish the LEDs.

To clear memory at any time, momentarily arm the system, then disarm.

Table 1. INSTALLATION GUIDE FOR LENSES
STANDARD LENS
PROTECTION RANGE

Vertical Pattern Setting
99LR LONG RANGE LENS
PROTECTION RANGE

Vertical Pattern Setting

When using the Long Range lens, set the PIR for intermediate response (Pulse Count DIP switch in UP position)

TEST PROCEDURES

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.

1. Remove front cover and set DIP switch #2 (Pulse Count) to the setting which will be used for this detector in the installation. The LED must be enabled at this time (DIP switch #1 down).
2. Replace front cover and walk through protective zones, observing that the detector s LED lights whenever motion is detected (the LED serves as a WalkTest indicator during this procedure).
3. For the 998EX detector, check the downward-looking zone by walking along the wall directly beneath the detector.

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 (DIP switch #1 UP).

MAINTAINING PROPER OPERATION

In order to maintain the detector in proper working condition, it is important that the user observe the following.

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.
2. Units should never be re-aimed or 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 coveage by each detector.

TROUBLESHOOTING

INTERMITTENT ALARM (LED OPERATIVE)

1. Rapid temperature change. Check for electric or gas heaters, open flames, electric arcs, etc.
   Remedy: Locate source and reposition detector.
2. Drafts causing drapes, light fixtures, display material to move.
   Remedy: Eliminate source of motion.

INTERMITTENT OR CONTINUOUS ALARM

1. 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/shorts) and connections secure.
2. 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. Check continuity across terminals. If absent (and proper voltage is supplied to the detector), return unit for replacement. If present, check protective loop wiring.

LED INOPERATIVE

1. LED DIP switch #1 in UP position.
   Remedy: Set DIP switch #1 in DOWN position.
2. LED malfunction. Check for broken/shorted leads.
   Remedy: Return unit for replacement.

DETECTION AREA CHANGES

1. Repositioned furniture or equipment in the protected area.
   Remedy: Caution customer about layout changes. Reposition detector.
2. Mounting surface is unstable. A few degrees of vertical shift can change range substantially.
   Remedy: Mount on secure surface.

PANEL INDICATES CONTINUOUS FAULT IN ZONE OF PROTECTION CONTAINING PIRs

(PIR's alarm LED not lit) Too many detectors being used in the zone. Each detector adds 15 ohms of series resistance and the zone s allowable loop resistance is being exceeded.
Remedy: Reduce the number of detectors used in the zone until the series resistance is within the allowable loop resistance permitted by the control.

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 to insure the system s operation at all times.

THE LIMITATIONS OF YOUR PASSIVE INFRARED MOTION DETECTOR

While the Intrusion Detector is a highly reliable intrusion detection device, it does not offer guaranteed protection against burglary. Any Intrusion Detection device is subject to compromise or failure to warn for a variety of reasons:

• Passive Infrared Motion Detectors can only detect intrusion within the designed ranges as diagrammed in this installation manual.
• Passive Infrared Motion Detectors do not provide volumetric area protection. They do create multiple beams of protection, and intrusion can only be detected in unobstructed areas covered by those beams.
• Passive Infrared Detectors cannot detect motion or intrusion that takes place behind walls, ceilings, floors, closed doors, glass partitions, glass doors, or windows.
• Mechanical tampering, masking, painting or spraying of any material on the lenses, windows or any part of the optical system can reduce the detection ability of the Passive Infrared Motion Detector.
• Passive Infrared Detectors sense changes in temperature; however, as the ambient temperature of the protected area approaches the temperature range of 32° to 40°C, the detection performance can decrease.
• This Passive Infrared Detector will not operate without appropriate DC power connected to it, or if the DC power is improperly connected (i.e., reversed polarity connections).
• Passive Infrared Detectors, like other electrical devices, are subject to component failure. Even though this equipment is designed to last as long as 10 years, the electronic components in it could fail at any time.

We have cited some of the most common reasons that a Passive Infrared Motion Detector can fail to catch intrusion. However, this does not imply that these are the only reasons, and therefore it is recommended that weekly testing of this type of unit, in conjunction with weekly testing of the entire alarm system, be performed to ensure that the detectors are working properly.

Installing an alarm system may make the owner eligible for a lower insurance rate, but an alarm system is not a substitute for insurance. Homeowners, property owners and renters should continue to act prudently in protecting themselves and continue to insure their lives and property. We continue to develop new and improved protection devices. Users of alarm systems owe it to themselves and their loved ones to learn about these developments.