ADEMCO 1990 Manuel d'instructions d'installation

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N46731 6190

fADEMCO,

INSTALLATION

INSTRUCTIONS

Nos. 1990 and 1992

PASSIVE INFRARED

MOTION DETECTORS

N4673-1 Dl 8190

GENERAL INFORMATION

These passive infrared motion detectors are versatile wall-mounted units

employing Fresnel lenses and offering efficient protection patterns for

commercial and residential applications. The detectors sense sudden and

slight changes in temperature wlthin the areaof detection; thus, when an

intruder crosses or enters any zone, the resulting change in infrared energy

is detected for alarm reporttng. Best coverage will be obtained if mounting

is selected such that the likely direction of intruder motion is across the

pattern. The No. 1990 is a Dual unit, with 2 fields of view in each zone;

the No. 1992 is a Quad unit, with 4 fields of view in each zone (see figure 1).

1990

PC BOARD

HOLDING

SCREW !

SENSITIVITY

E,: f r

0. l :,

I _I

u- -L

/ 'Y

SET TABLL

1 m

RE-"OLo*Elll*OS I

FOR SURFACE MOUNT

WIRING APPLICATIONS,

BREAK OUT THIN-WALL

SECTION IN BOTTOM

OF CASE.

TOP VIEW

. KNOCKOUTS

"8" (4)

FOR CORNER

MOUNTING

FOR SURFACE

MOUNTING

WIRE ACCESS SLOT

NOTE REGARDING

SENSITIVITY

CONTROL:

Figure 3. DETECTOR BASE

B. Recess Mounting

Recessed mounting requires the use of the optional No. 1990MK

Recess Mounting Kit. Complete instructions for the use of this kit

accompany it. Note: Holes "C" In the detector base are used for

recessed mountrng.

C. Changing Lenses (if required)

1. Remove front cover by inserting a screwdriver blade (or small coin)

in the groove between cover and base at the locatlon shown In Figure

2, rotating blade to override snap fit, and then lifting cover off.

2. Squeeze upper lens lock located in front cover to release upper

Fresnel lens support. Squeeze lower lens lock to release lower

Fresnel lens support (see Figure 4).

3. Note how the lens supports are positioned, then remove the supports.

4. Carefully remove the existing lens and replace with an optional

coverage replacement lens. The lens must be installed with the

smooth side facing outward. Also, the lens should be oriented with

ifs part number on the upper right-hand side (see Figure 4). Be sure

to center the lens.

SIDE VIEW

lHoc

Paw11 -

= CuDlKIrn

W"1

loft.

20ft.

3Oft 40ft.

50ft. 60ft.

(3m)

(6m) (9m) (12m) (15m)(18m)

5. Replace top and bottom lens supoorts and then Dress downward so

that the lens locks snap into posjdon, thus securing the lens in place.

NOTE: Lens surface should be free of dirt, foreign matter and

finger-prints. Use a clean dry soft cloth to wipe lens&faces,

if required.

6. Refer to Table 1 for recommended PIR mounting height, sensitivity,

pulse count settings, and pattern setting for the lens in use.

7. Replace the front cover (make sure the cover snaps tightly).

Figure 5. PC BOARDS, Nos. 1990 and 1992

INTERCHANGEABLE OPTIONAL LENSES

In addition to the standard lens supplied with Nos. 1990 and 1992, several

optional lenses are available which may be used with these PlRs to provide

a variety of protection patterns. Information for these optional lenses is

provided in Table 1, Refer to C. Changing Lenses in this document if one

of the optional lenses is being installed in place of the standard lens.

Lenses currently available from Visonic for its SRN2000 may also be used

with this PIR. The sensitivity and pulse count settings used with these

lenses will have to be determined by the installer during the walk test of

the unit. If Visonic lenses are used, they must be installed with smooth

side in (grooves outward).

NOTE: Visonic lenses are not UL Listed for use with Nos. 1990 and 1992.

TESTPROCEDURES

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. Remove front cover and set the Pulse Count jumper in the detector in

the single-event (instant response) mode. The Alarm LED must be

enabled at this time.

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 Walk-Test indicator during this procedure).

NOTE: In the single-event pulse mode, 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 application, set the pulse count jumper

to the desired pulse count setting and repeat the walk test procedure.

In 2- or 3-event pulse count, 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. Forthis

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.

TOP VIEW

UPPER

LENS SUPPORT

LENS *

LENS

LOCK

SIDE VIEW

*LENS

IS INSTALLED

WITW SMOOTH SIDE

FACING OUTWARD

(AWAY

FROM VIEWER

IN THIS DIAGRAM)

Figure 4. CHANGING LENSES

D. Horizontal Adjustment of Lens

1 oft.

20ft. 30it 40ft. 50ft.

(3m)

(6m)

(9m) (12m) (15m\

The protection pattern provided by the lens in use can be moved to the

left or right by horizontal adjustment of the lens, as follows:

1. Remove front cover.

2. Press inward on the upper and lower lens locks at the left or right

side only to release the lens supports on one side. Now slide the

lens to the left or right, as needed. The lens may be moved as much

as 8" (from center) in either direction.

3. When the lens is in the desired position, press the lens locks

downward (on the released side) to lock the supports in place.

4. Replace the front cover (make sure the cover snaps tightly).

After any adjustment, you must conduct a walk test to ensure proper

coverage of the area to be protected, as indicated under "Test

Procedures".

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 re-aimed or relocated without the advice or

No. 1990

( Dual )

No. 1992

( Quad )

Figure 1: Nos. 1990 & 1992 PROTECTION PATTERNS

INSTALLATION HINTS

Do not install where the detector

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.) which may blockthe pattern

of coverage.

Avoid locating a unit In areas which contain objects likely to produce a

rapid change In termperature, 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 winng close to heavy-duty electrical power

cables.

E. Vertical Pattern Adjustment

The protection pattern provided by the lens in use can be raised or

lowered by re-positioning the PC board in the detector. A graduated

scale to the left of the board (see Figure 5) indicates the approximate

number of degrees by which the pattern can be raised (max. + 10') or

lowered (max. -20"). The detector is normally shipped with the board

set to the 0" position. To make this adjustment, remove the cover on

the detector and loosen the screw holding the PC board (the screw is

located at the approximate center of the board). Slide the board upward

or downward by the number of degrees required, then tigh!en the holding

screw again. After any adjustment, you must conduct a walk test to

ensure proper coverage of the area to be protected, as indicated under

"Test Procedures".

F. Lens Masking

The masking strips that have been supplied are designed for application

to one or more lens segments to produce a protection pattern that suits

the particular requirements of the protected area. Individual masking

strips have been provided for each of the lens segments on the standard

lens supplied with the PIR. 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 theouter, smooth side). Each lens segment that is masked results

in the ellminatlon of one zone of protection from the coverage pattern.

By masking segments of the lens, you can adjust the coverage to suit

the area to be protected, or eliminate coverage from areas where you

anticipate environmental disturbances that might reduce the PIR's

stability (a heater or other heat-producting object for example).

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

is set for single event pulse count (instant response).

WIRING CONNECTIONS

Bring all wires in through the wire access slot near the terminal block and

connect to the screw terminals (see Figure 5 for wiring details). Seal all

openings in the base with foam or RTV (not supplied) to prevent drafts or

insects from entering the unit. Applypoweronlyafterallconnections

have

been made and are inspected.

PULSE COUNT OPTION

Each detector includes Pulse Count circuitry that is designed to provide

stability in adverse environments to minimize false alarms. Selectable l-,

2-, or 3-event pulse count is provided by positioning a jumper across the

appropriate pulse count terminals shown in Figure 5. When programmed

for 2- or 3-event pulse count, the detector will signal an alarm within 3 or

4 steps, since the processing logic requires more complex motion than just

a momentary event. When the detector verifies an intrusion, the LED (which

serves as an alarm indicator) will light and the alarm relay contacts will

transfer, both conditions lasting for approximately 1 to 3 seconds

(dependent upon signal strength).

assistance of the alarm service company.

3. The ohvsical surroundinas of the orotected area should not be chanaed.

If fuiniiure or stock is moved, 0; air-conditionin

or additional heating

is installed, the system may have to be readjuste by the alarm service

company.

4. Walk-tests should be conducted frequently (at least weekly) to confirm

continued proper coverage by each detector.

TROUBLESHOOTING

PROBLEM

IntermIttent Alarm

(LED operative)

REMEDY

Locate source and

reposItIon detector.

INSTALLATION

A. Normal Mounting:

Mount the unit to a firm vertical surface (flat on wall or in corner). The

wall wiring hole should be no more than 5116" (8mm) diameter.

1. Remove the front cover as shown in Figure 2.

2. Remove the screw holding the PC board in the detector base (the

screw is located at the center of the board) and temporarily remove

the board (handle PC board carefully).

3. Referto Figure 3. Knockout holes in the base are available for normal

surface mounting on a wall (holes"A"), or for corner mounting (holes

"B"). Break out only those mounting holes required.

4. Feed wiring emerging from the wall through the wire access slot at

the bottom of the detector base. Make sure wires have sufficient

slack to allow the PC board to slide up and down freely when the

wires are subseauentlv connected to ihe terminals on ihe board.

Then mount the base.'

Drafts causing drapes, lrght

fixtures, display material to

move.

Ellmlnate source of

motion.

Intermittent or

Continuous Alarm

DC voltage supplied to

detector

inadequate

IntermIttent, or polarit\

reversed.

Protective loop

Interrupted (open)

5. Re-install the PC board (with terminal block closest to the wiring

access slot in the base). Before fully tightening the holding screw,

make sure the board is positioned so that the arrow is in line with

the appropriate setting on the graduated scale (see Table 1, and

Figure 5).

6. Refer to WIRING CONNECTIONS before replacing the front cover.

LED InoperatIve

LED control jumper set to OFF

RepositIon lumper to ON

position

LED malfunction

Check

for broken/shorted

leads

Detection Area

Repositioned furniture or

equipment in the protected

area

Caution customer about layoul

changes. ReposItIon detector.

Mounting surface IS unstable

A few degrees of vertical

shift can change range

substantially

Mount on secure surface

LED DISABLE

The detector is shipped with the Alarm LED enabled (LED CTRL jumper

in the "ON" position). If desired, the LED may be disabled (after the

"Walk-Test" is complete) by positioning the LED CTRL jumper In the "OFF"

position (see Figure 5). When the jumper is In the "OFF" posItIon, the LED

WIII not illuminate, but the relay will transfer to report alarms when the PIR

senses motion.

Control Panel Indi-

Too many No. 1990 detectors

cates Continuous

being used in the zone Each

Fault in Zone or Pro-

detector adds 22 ohms of

tection Containing

series resistance and the

1990s (PIR'S Alarm

zone's allowable loop resis-

LED Not Lit)

tance

being exceeded

Reduce the number of detec-

tors used In the zone unbl the

series resistance

within the

allowable loop resistance per-

mitted by the control.

Figure 2. COVER REMOVAL