System Sensor 2251EIS Manuel utilisateur

D200-70-00 1 I56-1181-03R

2251EIS Intrinsically-Safe Plug-in

Intelligent Photoelectronic Smoke Detector

INSTALLATION AND MAINTENANCE INSTRUCTIONS

A Division of Pittway

3825 Ohio Avenue, St. Charles, Illinois 60174

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

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.

NOTICE: This manual should be left with the owner/user

of this equipment.

IMPORTANT: This sensor should be cleaned at least once a

year. If cleaning is performed with non-intrinsically safe

equipment, it must be conducted outside the hazardous

area.

General Description

Model 2251EIS is an intrinsically-safe, plug-in type smoke

sensor that combines a photoelectronic sensing chamber

with addressable-analog communications. The sensor trans-

mits an analog representation of smoke density over a regu-

lated communication line, through a barrier, to an intelligent

system translator (sold separately, IST200). The translator

then relays the analog information to a control panel.

Rotary-decade switches are provided for setting the sensor’s

address. Two LEDs on the sensor are controlled by the panel

to indicate sensor status.

Wiring Instructions

All wiring must be installed in compliance with all appli-

cable national codes of practice and regulations (e.g. in the

UK, EN60079-14; 1997). The installation wires should be

shielded and properly grounded.

Specifications

Operating Voltage Range: 17 to 24 VDC

Standby Current: 330µA @ 24 VDC (one communication every 5 sec. with LED blink enabled)

Max. Alarm Current (LED on): 2.5 mA @ 24 VDC

Operating Humidity Range: 10% to 93% Relative Humidity, Noncondensing

Operating Temperature Range:

Europe––10°to 60°C

U.S.–32°to 120°F (0°to 49°C)

Compatible Bases: B501

NOTE: The maximum length of wire that can be connect-

ed to the detector side of the barrier is limited by

the barrier resistance, the wiring capacitance, and

the characteristics of the control panel. For more

detailed information, refer to the literature sup-

plied with the control panel.

The system must be marked with a system label that is

packed with the 2251EIS. This label must be placed on or

adjacent to the principal item of electrical apparatus in the

system, or at the interface between the intrinsically safe

and non-intrinsically safe circuits.

Remove power from the communication line before

installing sensors.

All wiring must conform to applicable local codes, ordi-

nances, and regulations.

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

wiring diagram.

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

see Figure 1.

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.

456

0A78-2460-00

Figure 1. Rotary decade address switches:

ACCESS MENUS

D200-70-00 2 I56-1181-03R

Dust covers provide limited protection against airborne

dust particles during shipping and must be removed before

the sensors can sense smoke. Remove sensors prior to

heavy remodeling or construction. Be sure to remove the

dust covers from any sensors left in place during construc-

tion prior to returning the system to service

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 periodical-

ly thereafter. Testing methods must satisfy the Authority

Having Jurisdiction (AHJ). Sensors offer maximum per-

formance when tested and maintained in compliance with

NFPA 72.

IMPORTANT: If testing is done with non-intrinsically safe

methods, it should be conducted outside the hazardous

area.

The sensor can be tested in the following ways:

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

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 2.

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 doc-

umentation for sensor LED status operation and

expected delay to alarm.

B. Smoke Entry: Aerosol Generator

Aerosol generations for smoke entry testing are available

from a number of third party manufacturers (e. g.,

Gemini Scientific). Following the manufacturer’s instruc-

tions, 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 and returned

for repair.

When testing is complete, restore the system to normal

operation and notify the proper authorities that the

system is back in operation.

CAUTION

LED STATUS

INDICATORS

TEST

MAGNET

PAINTED

SURFACE

PAINTED

SURFACE

;;;;;;;;;

;

;;;;;;;

;

;;;;;;;;;

TEST

MAGNET

MAGNET TEST

MARKER

A78-2462-01

SENSOR

COVER

SENSING

CHAMBER

SENSING

CHAMBER

COVER

SENSOR

SCREEN

COVER REMOVAL

TABS

A78-2463-08

Figure 2. Test magnet position:

Figure 3. Sensor assembly:

ACCESS MENUS

D200-70-00 3 I56-1181-03R

SAFE AREA HAZARDOUS AREA

(see Note 2) }To next

detector(s)

IST200 Intelligent

System Translator

Shunt Zener

Diode Safety

Barrier

(see Note 1)

B501

Base

NOTE:

1. Any single channel shunt zener diode safety barrier, or single channel of a dual channel shunt zener diode safety bar-

rier certified by BASEEFA or any EEC approved certification body to [EEx ia] IIC having the following, output param-

eters may be used: Uo= 28V OR Uz = 28V

Io= 93.3mA OR Imax: out = 93.3 mA

Po = 0.66 W OR Wmax: out = 0.66 W

In any safety barrier used, the output current must be limited by an internal resistor “R”, such that Imax: out = Uz/R.

2. The capacitance and inductance or inductance/resistance (L/R) ratio of the cable connected to the hazardous area

between power terminals 1 and 2 (B501) must not exceed the value shown in Table 1 (above).

All wiring shown is supervised and power limited.

Model 2251EIS Smoke Detector

EEx ia IIC T5

BASEEFA No.: Ex 98D2020

Group Capacitance Inductance L/R Ratio

µF mH µH/ohm

IIC 0.083 4.20 55

IIB 0.65 12.6 165

IIA 2.15 33.6 440

Table 1: Terminals 1 and 2 (B501 Base)

321

(+) (-)

(-)

(+)(+)

(+)

To next

devices

(+)

(-)

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D200-70-00 4 I56-1181-03R

Three-Year Limited Warranty

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 obligation

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 work-

manship under normal use and service during the three year period com-

mencing 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, Repair

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 dam-

ages for breach of this or any other Warranty, expressed or implied what-

soever, even if the loss or damage is caused by the Company’s negligence

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.

Cleaning

It is recommended that the detector be removed from its

mounting base to facilitate cleaning. The detector is

cleaned as follows:

NOTE: Before removing the detector, notify the proper

authorities that the smoke detector system is

undergoing maintenance and will be temporarily

out of service. Disable the zone or system under-

going maintenance to prevent unwanted alarms.

1. Remove the detector cover by prying away the four

side tabs with a small-bladed screwdriver, and then

pulling the cover from the base.

2. Vacuum the screen carefully without removing it. If

further cleaning is required continue with Step 3, oth-

erwise skip to Step 8.

3. Remove the screen assembly by pulling it straight out

(see Figure 3).

4. Remove the sensing chamber cover by pulling it

straight out.

5. Clean the vaned chamber piece by vacuuming or

blowing out dust and particles.

6. Replace the sensing chamber cover, aligning the arrow

on the top with arrow on the printed circuit board.

7. To replace the screen, place it over the chamber

assembly, turning it until it snaps into place.

8. Replace the cover using the LEDs to align the cover

and then gently pushing it until it locks into place.

9. Reinstall the detector.

10. Test the detector as described in TESTING.

11. Reconnect disabled circuits.

12. Notify the proper authorities that the system is back

on line.

Please refer to insert for the Limitations of Fire Alarm Systems

ACCESS MENUS

IST200-01-00 1 I56-1182-03

IST200 Intelligent System Translator

For Use With Intrinsically Safe Detectors

INSTALLATION AND MAINTENANCE INSTRUCTIONS

A Division of Pittway

3825 Ohio Avenue, St. Charles, Illinois 60174

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

Before Installing

This information is included as a quick reference installation

guide. Refer to the control panel installation manual for detailed

system information. If the IST200 will be installed in an existing

operational system, inform the operator and local authority that

the system will be temporarily out of service. Disconnect power to

the control panel before installing the IST200.

NOTICE: This manual should be left with the owner/user of this

equipment.

General Description

The IST200 is intended for use in intelligent, intrinsically safe

systems. This translator serves as an interface, allowing the con-

trol panel to communicate through a shunt-diode safety barrier

to intrinsically safe detectors.

Compatibility Requirements

To insure proper operation, the IST200 shall be connected to listed

compatible system control panels only.

Mounting IST200 Devices

The IST200 mounts directly to a 4″square electrical box, as shown

in Figure 1A. The box must have a minimum depth of 21 /8".

Wiring

NOTE: All wiring must conform to applicable local codes, ordi-

nances and regulations. The translator must be inserted

into and attached to a 4"x4"x21 /8" electrical box.

1. Install translator wiring in accordance with the job drawings

and appropriate wiring diagrams (Figure 2).

2. Secure translator to electrical box (supplied by installer), as

shown in Figure 1A.

Figure 1A. IST200 mounting:

A78-2611-13

Figure 1B. Electrical box cut-away view:

A78-2610-11

Specifications

Input Voltage (V in): 15 to 32 VDC

Output Voltage: 20 to 24 VDC

Input Current: 17mA @ V in = 15V

9.7mA @ V in = 24V

Output Current: 7.6mA maximum

NOTE: Input and output currents assume there are no wiring faults and that the IST200 is loaded per the panel

manufacturer’s instructions.

IST200-01-00 2 I56-1182-03

Figure 2. System wiring diagram:

A78-2280-16

Three-Year Limited Warranty

System Sensor warrants its enclosed translator 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 ex-

press warranty for this translator. No agent, representative, dealer, or em-

ployee of the Company has the authority to increase or alter the

obligations or limitations of this Warranty. The Company’s obligation of

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

the translator 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, Repair Depart-

ment, 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, modifica-

tions, 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 negligence or fault.

Some states do not allow the exclusion or limitation of incidental or conse-

quential 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.

NOTE:

1. Any single channel shunt zener diode safety barrier, or single channel of a dual channel shunt zener diode safety bar-

rier certified by BASEEFA or any EEC approved certification body to [EEx ia] IIC having the following, output param-

eters may be used:

Uz = 28V

Imax: out = 93.3 mA

Wmax: out = 0.66 W

In any safety barrier used, the output current must be limited by an internal resistor “R”, such that Imax: out = Uz/R.

2. It is recommended that all installation wires be shielded and properly grounded.

1 (–)

2 (+)

FROM PANEL OR

(+)

(–)

TO NEXT

(+)

(–)

DEVICE

(+)

(–)

CONNECT MODULES TO LISTED COMPATIBLE

(+)9

(–)8

CONTROL PANELS ONLY

PREVIOUS DEVICE

COMMUNICATION LINE

ALL WIRING SHOWN IS SUPERVISED AND POWER LIMITED

SAFE AREA

(+)

(–)(–)

(+)

HAZARDOUS AREA

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