ADEMCO 4278EX Kurulum Talimatları Kılavuzu - Sayfa 2

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B. Mounting With Wall Plate:

NOTE: For ANPI approved installations, you cannot use the mounting bracket.

1. Remove the front cover as shown in Diagram 3.

2. Mount the wall plate to a firm vertical surface (flat on wall or in a corner). See

Diagram 5 and Detail A.

3. Feed wiring through tow access hole of detector but do not connect to terminal block

yet. See Diagram 4, Note A.

4. Attach unit to wall plate by engaging all four hooks on the plate into slots on the rear

of the base and by pressing downward (see Diagram 5).

NOTE: The PIR is locked to the wall plate by a spring tab that engages a small opening

in the housing base (see Diagram 5). The PIR can only be removed by cover removal,

depression of the tab from the inside with a small-blade screwdriver and then sliding the

PIR upward (see Diagram. 4)

C. Mounting Without Wall Plate (Mandatory For VDS/ANPI Installations):

The PIR may be mounted on a flat wall or in a corner directly (without using the wall

plate). Two pairs of knockout areas are provided on the housing base, just above the

mirror, where mounting screws can penetrate the plastic. These are accessible by

removing the circuit board (spread the circuit board mounting tabs shown in Diagrams 4

and 5).

Do not open the knockout areas unless they will be used for mounting, with the heads of

the mounting screws completely covering the openings.

For flat wall mounting, a wiring passage is provided at the rear of the housing base to enable

circuit wires to be routed into the PIR's wire entry area. See Diagram 4, Note A and

Diagram 5, Detail A.

After the base is mounted, the circuit board should be carefully replaced. Align the notches

at the left and right edges of the circuit board with the base's mounting tabs and make

certain that the projections in both notchess fully engage the slots in the mounting tabs. In

addition, the board should rest securely on the two support posts, and the wiring entry notch

at the board's upper edge should rest on the long wall of the wiring entry passage. See

Diagrams 4 and 5.

D. Coverage Adjustment:

The PIR is equipped with a moveable mirror carrier which allows adjustment of the coverage

pattern in the horizontal direction after the unit is mounted (See Diagram 4). Although it

can be used in conjunction with either mirror, this feature is particularly useful when

using the Long Range/Curtain Mirror, because it can compensate for mounting on an

uneven wall, and assist in accurately aiming down long corridors through doorways, and

around obstructions. Adjustment is accomplished by depressing one of the rectangular

plastic ears at the lower left and right sides of the mirror holder. This pivots the mirror

assembly to the left or right up to 5°.

E. Ceiling Mounting:

The versatility of the PIR permits optional ceiling mounting as an alternative to the wall

mounted configurations described herein. Mounting the unit on the ceiling, using the

Long Range Curtain Mirror, can provide a 4.6m to 5.5m forward-looking "curtain" pattern

as illustrated in Diagram 6.

CEILING

3.6m

HEIGHT

FLOOR

DIAGRAM 6. CEILING MOUNTED UNIT

USING LONG RANGE ("CURTAIN") MIRROR

F. Inverted Mounting:

If small pets have access to the area protected by the detector, this section pertains.

The detector may be installed approximately 0.9 to 1.1m from the floor, provided

furniture or other objects do not obscure the pattern of protection.

The detector and wall plate must be mounted inverted (the PIR window at the top) with

the wall plate tilted forward (downward). Four self-adhesive rubber spacers have been

provided to aid in tilting the wall plate.

It must be noted that although this procedure adjusts the PIR zones so that small

animals will not be detected, a crawling intruder will ALSO go undetected.

1. The spacers are to be used with the wall plate only when the wide angle mirror is in

use.

Mounting flat on a wall:

Stack two spacers between the wall and each of the two mounting bosses on the rear

of the wall plate at the end opposite to the wiring entry.

Corner mounting:

Affix one of the spacers to the rear surface of each of the two corner mount tabs on the

wall plate, on the end opposite to the wire entry access cutout.

TOP

VIEW

1.2m

(at 3.6m

ceiling

height)

5.5m

Mount unit so that

PIR window is towards

detection area.

SIDE

VIEW

4.6m

2. Follow the "Normal Mounting" steps 2, 3 and 4 described previously, but orient the

wall plate so that the wire entry access cutout in the wall plate is positioned at the

bottom.

3. When the detector is mounted in an inverted position, those portions of the detector

mirror which normally provide downward beams of protection will now provide

beams that point upward. This will apply to both mirrors (long range and wide

angle). If possible, install the detector so that these now upward-pointing beams

are not directed at ceiling areas that include heating or air conditioning ducts and

vents or light fixtures. If these PIR sources cannot be avoided, the upward-pointing

segment of the mirror should be masked to avoid the possibility of false alarms.

See the section on "Mirror Masking" later in this document.

DOUBLE HALLWAY

TOP VIEW

DOUBLE HALLWAY AND SMALL ROOM

TOP VIEW

SMALL ROOM AND LEFT HALLWAY

TOP VIEW

SMALL ROOM AND RIGHT HALLWAY

TOP VIEW

IMPORTANT: When hallway pattern masking is used, be sure the PIR is set for

Instant Response Mode. Failure to do so results in allowing an intruder to go

undetected.

NOTE: If the hallway is less than 3m wide, the full 12m coverage will not be obtained,

but will be slightly reduced. To minimize this effect, the mirror can be aimed left or right

as described in the "Coverage Adjustment" section of this document.

WIDE ANGLE PET ALLEY (PIR Mounted at 2.1m In A 3m x 3m Room)

3.0m

TOP VIEW

3.0m

WIDE ANGLE PET ALLEY (PIR Mounted at 1.7m In A 4.6m x 4.6m Room)

3.0m

TOP VIEW

3.0m

The two mirrors included with the detector can be tailored to provide many different

coverage patterns (see examples above). This eliminates the need to purchase

additional optics.

DIAGRAM 7. PROTECTION PATTERNS WITH MASKING SEGMENTS

12.2m

SIDE VIEW

2.1m

3.0m

12.2m

SIDE VIEW

2.1m

3.0m

12.2m

SIDE VIEW

2.1m

3.0m

12.2m

SIDE VIEW

2.1m

12.2m

3.0m

12.2m

SIDE VIEW

2.1m

3.0m

4.6m

SIDE VIEW

1.6m

3.0m 4.6m

4.6m