NX 487 (60 834 95) Flexguard Sound Sensor

NX-487 (60-834-95) Flexguard Sound Sensor NX-487 (60-834-95) Flexguard Sound Sensor

User Manual: NX-487 (60-834-95) Flexguard Sound Sensor AlarmHow.net Library

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Product

Summary

The sensor is a dual technology glass-break detector that uses a single microphone for detecting

both flex and audio frequencies. Since glass breaking must be both detected and verified, false

alarms are virtually eliminated.

The sensor detects glass breakage of windows within 25 feet.

How It Works

The microphone is sensitive to different frequencies. It detects both the ultra-low frequencies

produced by a blow to a glass window and the higher frequencies produced by breaking glass.

The audio technology remains inactive until the microphone detects a blow to the glass. Once

this happens the microphone must also detect the frequency of breaking glass, within a defined

time-window after the flex circuitry detects a blow to the glass. Only then does the sensor go into

alarm.

The sensor is powered by two 3.6V Lithium AA batteries (included).

The sensor can be used with the glass types and thicknesses shown in Table 1.

For the sensor to work properly, the glass size must be at least 10-7/8” x 10-7/8”.

Tools Needed

• Small Phillips Screwdriver

• Small Flathead Screwdriver

• Screws and Anchors (included)

• Small Needle-Nose Pliers

• M4 or M5 Screw

• Sound Sensor Tester (GE Security part number 13-332)

Programming The following steps describe the general guidelines for programming (learning) the sensor into

panel memory. Refer to the specific panel installation instructions or reference manual for com-

plete programming details.

1. Set the panel to the program mode.

2. Proceed to the LEARN SENSORS menu.

3. Select the appropriate sensor group and sensor number assignments.

Table 1: Glass Types and

Thicknesses

Glass Type Thickness

(inches)

Plate 3/32

Tempered 1/8

Laminated 1/8

Wired 1/4

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2Adjustable Dual Technology Sound Sensor Installation Instructions

4. When prompted by the panel to trip the sensor, activate the sensor tamper by opening the

sensor door.

5. Exit program mode.

Installation Guidelines

Determine the best mounting location for the sensor using the following guidelines:

• Mount the sensor on the ceiling or on a wall at least 7 feet from the floor with a direct

and unobstructed line-of-sight of the protected glass.

• Mount the sensor within 25 feet of the glass to be protected (see Figure 1).

Note

Curtains, blinds, and other window coverings can absorb energy from breaking glass. For exam-

ple, heavy curtains will effectively block the sound signal. In these cases, mount the sensor behind

the window covering next to or above the window.

• Do not mount the sensor next to air

ducts, forced air fans, or bells mea-

suring 2 inches (or larger) in diam-

eter.

• Do not mount the sensor near doors

and windows that can be slammed

(see Figure 1).

• Do not mount the sensor where fur-

niture may be placed between the

glass and the sensor.

• Do not mount the sensor on posts,

free-standing or otherwise.

• Do not mount the sensor where a

door can be closed between the

sensor and the glass or where an

open door may obstruct sensor

line-of-sight (see Figure 1).

Figure 1. Sensor Mounting Locations

Mounting the Sensor

Mount the sensor using the following procedure:

1. Open the sensor door and remove the cover screw using a Phillips screwdriver (see Fig-

ure 2).

Figure 2. Opening Cover to Locate and Remove Cover Screw

POOR LOCATION

FULLY OPENED DOOR CAN

BLOCK SENSORS VIEW

SATISFACTORY

LOCATION

SATISFACTOR

Y

LOCATION

POOR LOCATION,

HIGH RISK OF

DOOR SLAM

NOISE

OPTIMUM

LOCATIONS

25' MAXIMUM

25' MAXIMUM

25' MAXIMUM

+

-

SENS 1

TEST MODE

LED ENABLED

ON OFF

FLEX ALARM AUDIO

SCREW

3.6V

LITHIUM

AA

BATTERY

3.6V

LITHIUM

AA

BATTERY

SENS 2

3Adjustable Dual Technology Sound Sensor Installation Instructions

2. Remove the sensor cover by first pulling up at the top of the cover then lift up at the bottom.

Set the sensor cover aside.

Note

Steps 3 and 4 provide instructions on how to enable the wall tamper switch. For commercial UL listed

systems the wall tamper switch must be used. If not using the tamper switch feature, move on to step 5.

3. Enable the wall tamper switch by removing

the plastic tab on the back of the sensor using

the needle-nose pliers (see Figure 3).

4. Screw the M4 or M5 screw into the wall or

ceiling so that it will make contact with the

wall tamper arm.

Figure 3. Wall Tamper Switch

5. Place the sensor base at the desired location on the wall or ceiling

(over tamper screw if installed) and mark the narrow portion of

the mounting holes (see Figure 4).

6. Insert screws part way into anchors (if necessary) or wall.

7. Place the sensor base on the screws and slide the narrow portion

of the mounting holes onto the screws.

8. Gently tighten the screws to secure the sensor in place.

Figure 4. Mounting Hole Locations

Testing Use the following procedures with the Sound Sensor Tester to test the audio and RF ranges simul-

taneously. The recommended tester is a FG-701 Glass Break Simulator, however instructions for

the FG-700 Glass Break Simulator are also provided. For additional testing information, refer to

the tester operating instructions. For UL listed systems, the installer should test the unit at least

once a year.

Note

Do not test when the sensor

is in normal mode.

Table 2 describes LED indicator conditions.

Plastic Tab

Wall

Tamper

Arm

(

Back of Sensor

)

(Side View)

Scre

w

Wall

Tamper

Arm

+

-

MOUNTING

HOLES

Table 2: LED Indicator Conditions

Condition Green

LED

Red

LED

Normal OFF OFF

Normal, event

detected

Flicker OFF

Normal, event

detected and alarm in

memory

Flicker Flash 5

seconds

Normal, break

detected

OFF ON 5

seconds

4Adjustable Dual Technology Sound Sensor Installation Instructions

Sensor Testing with the FG-700 Glass Break Simulator

1. Set the panel to the dealer sensor test mode.

2. Open the sensor door (to view LEDs).

Note

The only LEDs are for audio and alarm. The flex LED hole should be empty.

3. Place the sensor in test mode by shorting out the silver test points on the sensor board using a

small flathead screwdriver (see Figure 5). When the sensor is in test mode the green LED

blinks once per second.

Figure 5. Shorting Out the Sensor Board Test Points

Note

The sensor returns to normal mode after 5 minutes. To immediately return the sensor to normal mode

short out the silver test points a second time.

4. Hold the tester at the farthest point of the glass to be protected (25 feet maximum).

5. Place the tester setting switches to “Flex” and “Temp.”

6. Within 30 seconds of arming the tester, generate a signal by striking the glass with your hand

or a cushioned tool. The tester will automatically generate a burst of glass breaking sound,

and the red LED on the sensor should light to indicate an alarm condition.

7. Listen for interior siren beeps to determine acceptable range (see panel installation instruc-

tions).

Note

If the sensor response is unacceptable, change the position or location of the sensor and re-test.

Power up self-test ON 1

second

ON 1

second

Trouble detected Flash

ON/OFF

Flash

OFF/ON

Low battery Flash

ON/OFF

Flash

ON/OFF

Test Mode Flash once

per second

OFF

Test Mode, event

detected

Flicker OFF

Test Mode, alarm Flash once

per second

ON 5

seconds

Table 2: LED Indicator Conditions (cont.)

Condition Green

LED

Red

LED

Silver Tes

t

Points

SENS 1

TEST MODE

LED ENABLED

ON OFF

E

XALARM AUDIO

3.6V

LITHIUM

AA

3.6V

LITHIUM

AA

SENS 2

5Adjustable Dual Technology Sound Sensor Installation Instructions

Sensor Testing with the FG-701 Glass Break Simulator

1. Set the panel to the dealer sensor test mode.

2. Open the sensor door (to view LEDs).

Note

The only LEDs are for audio and alarm. The flex LED hole should be empty.

3. Place the sensor in test mode by placing the tester setting switches to “Activate” and “Man,”

then press the red button on the tester (within 15 feet of the sensor). The tester emits a low fre-

quency buzzing sound. When the sensor is in test mode the green LED blinks once per sec-

ond.

Note

The sensor returns to normal mode after 5 minutes. To immediately return the sensor to normal mode,

place the tester setting switches to “Activate” and “Man,” then press the red button on the tester. The

tester emits a low frequency buzzing sound and the green LED stops flashing.

4. Hold the tester at the farthest point of the glass to be protected (25 feet maximum).

5. Place the tester setting switches to “Test” and “Flex.”

6. Within 30 seconds of arming the tester, generate a signal by striking the glass with your hand

or a cushioned tool. The tester will automatically generate a burst of glass breaking sound,

and the red LED on the sensor should light to indicate an alarm condition.

7. Listen for interior siren beeps to determine acceptable range (see panel installation instruc-

tions).

Note

If the sensor response is unacceptable, change the position or location of the sensor and re-test.

Adjusting the

Sensitivity

The sensitivity is set at the factory and should

only be adjusted when necessary. Adjust the

sensitivity using the following procedure:

Note

Sensitivity changes must be made with sensor

batteries removed.

1. Open the sensor door.

2. Remove the batteries.

3. Use a small screwdriver to move the sensi-

tivity switches to the desired setting (see

Figure 6). Sensitivity settings are shown in

Table 3.

Figure 6. LED Sensitivity Switches

4. Reinstall the batteries.

5. Place the sensor in test mode (see appropriate range testing section).

6. Turn on any heating/air-conditioning system, and any other equipment in the sensor vicinity.

Observe the green audio LED for one minute with equipment running. Excessive subsonic

(inaudible) noise typically produced by air handling systems may cause the green audio LED

to flash randomly.

7. If the LED flashes randomly, decrease the sensitivity according to the sensitivity settings in

Table 3.

Table 3: Sensitivity Settings

Sensitivity

SENS

1

Switch

SENS

2

Switch

Approximate

Coverage

Max Off Off 25 Feet

Med On Off 15 Feet

Low Off On 10 Feet

Lowest On On 5 Feet

SENS 1

TEST MODE

LED ENABLED

ON OFF

FLEX ALARM AUDIO

SENS 2

Sensitivit

y

Switches

6Adjustable Dual Technology Sound Sensor Installation Instructions

Specifications Compatibility: ............................60-834-95—all 319.5 MHz. GE Security Learn Mode panels

60-765-43—all 433 MHz. GE Security Learn Mode panels

Power Source:............................Two 3.6VDC Saft or Tadiran AA Lithium Batteries.

Operating Temperature Range:..32°F - 110°F

Dimensions: ...............................4.75” x 4.13” x 1.25” (L x W x D)

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