System Sensor 1251B Manuel utilisateur

D200-28-00 1 I56-1908-02R

1251B Plug-in Intelligent Ionization

Sensor with Communications

INSTALLATION AND MAINTENANCE INSTRUCTIONS

3825 Ohio Avenue, St. Charles, Illinois 60174

1-800-SENSOR2, FAX: 630-377-6495

www.systemsensor.com

Before Installing

This sensor must be installed in compliance with the con-

trol panel system installation manual. The installation must

meet the requirements of the Authority Having Jurisdiction

(AHJ). Sensors offer maximum performance when installed

in compliance with the National Fire Protection Association

(NFPA); see NFPA 72.

General Description

Model 1251B intelligent ionization sensor uses a state-of-

the-art sensing chamber. These sensors are designed to

provide open area protection and are intended for use with

compatible control panels only.

Two LEDs on each sensor light to provide a local, visible

sensor indication. Remote LED annunciator capability is

also available as an optional accessory (RA400Z).

The 1251B requires compatible addressable communica-

tions to function properly. Connect this sensor to listed-

compatible control panels only.

Spacing

System Sensor recommends spacing sensors in compliance

with NFPA 72. In low air flow applications with smooth

ceilings, space sensors 30 feet apart. For specific infor-

mation regarding sensor spacing, placement, and special

applications, refer to NFPA 72 or the System Smoke Detector

Application Guide, available from System Sensor.

Wiring Guide

All wiring must be installed in compliance with the

National Electrical Code, applicable local codes, and any

special requirements of the Authority Having Jurisdiction.

Specifications

Operating Voltage Range: 15 to 32 VDC

Max. Avg. Standby Current: 300µA @ 24 VDC (one communication every 5 sec. with LED blink enabled)

Max. Alarm Current (LED on): 6.5 mA @ 24 VDC

Operating Humidity Range: 10% to 93% Relative Humidity, non condensing

Operating Temperature Range: 0°C to 49°C (32°F to 120°F)

Height: 2.0 inches (51 mm) installed in B210LP Base

Diameter: 6.1 inches (155 mm) installed in B210LP Base

4.1 inches (104 mm) installed in B501 Base

Weight: 5.4 oz. (153 g)

Proper wire gauges should be used. The installation wires

should be color-coded to limit wiring mistakes and ease

system troubleshooting. Improper connections will prevent

a system from responding properly in the event of a fire.

Remove power from the communication line before

installing sensors.

1. Wire the sensor base (supplied separately) per the wir-

ing diagram, see Figure 1.

2. Set the desired address on the sensor address switches,

see Figure 2.

3. Install the sensor into the sensor base. Push the sensor

into the base while turning it clockwise to secure it in

place.

4. After all sensors have been installed, apply power to the

control unit and activate the communication line.

5. Test the sensor(s) as described in the TESTING section

of this manual.

CAUTION

Dust covers provide limited protection against airborne dust

particles during shipping. Dust covers must be removed

before the sensors can sense smoke. Remove sensors prior

to heavy remodeling or construction.

Tamper-Resistance

Model 1251B includes a tamper-resistant capability that

prevents their removal from the bracket without the use of

a tool. Refer to the base manual for details on making use

of this capability.

D200-28-00 2 I56-1908-02R

+ -

Figure 1. Wiring Diagram:

Testing

Before testing, notify the proper authorities that the system

is undergoing maintenance, and will temporarily be out of

service. Disable the system to prevent unwanted alarms.

All sensors must be tested after installation and periodi-

cally thereafter. Testing methods must satisfy the Authority

Having Jurisdiction (AHJ). Sensors offer maximum perfor-

mance when tested and maintained in compliance with

NFPA 72.

Test the sensors as follows:

A. Functional: Magnet Test (P/N M02-04-01 or M02-09-00)

This sensor can be functionally tested with a test mag-

net. The test magnet electronically simulates smoke in

the sensing chamber, testing the sensor electronics and

connections to the control panel.

1. Hold the test magnet in the magnet test area as shown

in Figure 3.

2. The sensor should alarm the panel.

Two LEDs on the sensor are controlled by the panel

to indicate sensor status. Coded signals, transmitted

from the panel, can cause the LEDs to blink, latch

on, or latch off. Refer to the control panel technical

documentation for sensor LED status operation and

expected delay to alarm.

B. Smoke Entry: Aerosol Generator (Gemini 501)

The GEMINI model 501 aerosol generator can be used

for smoke entry testing. Set the generator to represent

4%/ft to 5%/ft obscuration as described in the GEMINI

501 manual. Using the bowl shaped applicator, apply

aerosol until the panel alarms.

A sensor that fails any of these tests should be cleaned

as described under CLEANING, and retested. If the sensor

fails after cleaning, it must be replaced.

When testing is complete, restore the system to the normal

operation and notify the proper authorities that the system

is back in operation.

CAUTION: Do not loop wire under terminal 1 or 2.

Break wire run to provide supervision of connections.

CLASS A OPTIONAL WIRING

REMOTE ANNUNCIATOR

UL LISTED COMPATIBLE

CONTROL PANEL

C0129-00

LED Status

Indicators

Magnet Test

Marker

Test Magnet

Position

Test Magnet

Position

Magnet Test

Marker

LED Status

Indicators

Magnet Test

Marker

Test Magnet

Position

Test Magnet

Position

Magnet Test

Marker

D200-28-00 3 I56-1908-02R

Figure 3. Test Magnet positioning:

TENS ONES

210

Figure 2. Rotary decade address switches:

Sensor

Cover

Sensing

Chamber

and Screen

Cover

Removal

Tabs

Figure 4: Cleaning

Before cleaning, notify the proper authorities that the sys-

tem is undergoing maintenance and will be temporarily

out of service. Disable the system to prevent unwanted

alarms.

1. Remove the sensor to be cleaned from the system.

2. Remove the sensor cover. Press firmly on each of the

four removal tabs that hold the cover in place.

3. Vacuum the outside of the screen carefully. If further

cleaning is required, continue with Step 4, otherwise

skip to Step 5.

4. Use clean, compressed air to remove dust and debris

from the sensing chamber.

5. Replace the cover using the LEDs to align the cover and

then gently pushing it until it locks into place.

6. Reinstall the detector.

7. Test the detector as described in TESTING.

8. Reconnect disabled circuits.

9. Notify the proper authorities that the system is back on

line.

Special Note Regarding Smoke Detector Guards

Smoke detectors are not to be used with detector guards

unless the combination has been evaluated and found

suitable for that purpose.

C0145-00

C0146-00

C0150-00

D200-28-00 4 I56-1908-02R

System Sensor warrants its enclosed smoke detector to be free from

defects in materials and workmanship under normal use and service for a

period of three years from date of manufacture. System Sensor makes no

other express warranty for this smoke detector. No agent, representative,

dealer, or employee of the Company has the authority to increase or alter

the obligations or limitations of this Warranty. The Company’s obliga-

tion of this Warranty shall be limited to the repair or replacement of any

part of the smoke detector which is found to be defective in materials or

workmanship under normal use and service during the three year period

commencing with the date of manufacture. After phoning System Sensor’s

toll free number 800-SENSOR2 (736-7672) for a Return Authorization

number, send defective units postage prepaid to: System Sensor, Returns

FCC Statement

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful inter-

ference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These

limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses

and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to

radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause

harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to

try to correct the interference by one or more of the following measures:

– Reorient or relocate the receiving antenna.

– Increase the separation between the equipment and receiver.

– Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

– Consult the dealer or an experienced radio/TV technician for help.

Please refer to insert for the Limitations of Fire Alarm Systems

Three-Year Limited Warranty

Department, RA #__________, 3825 Ohio Avenue, St. Charles, IL 60174.

Please include a note describing the malfunction and suspected cause

of failure. The Company shall not be obligated to repair or replace units

which are found to be defective because of damage, unreasonable use,

modifications, or alterations occurring after the date of manufacture. In

no case shall the Company be liable for any consequential or incidental

damages for breach of this or any other Warranty, expressed or implied

whatsoever, even if the loss or damage is caused by the Company’s neg-

ligence or fault. Some states do not allow the exclusion or limitation of

incidental or consequential damages, so the above limitation or exclusion

may not apply to you. This Warranty gives you specific legal rights, and

you may also have other rights which vary from state to state.

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