System Sensor 2251EIS Manual de usuario
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
37
8
2
19
0
456
37
8
2
19
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
D
N
T
N
I
A
P
T
O
O
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:
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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
(+)
(-)
ACCESS MENUS
D200-70-00 4 I56-1181-03R
© System Sensor 1999
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
© System Sensor 1999
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
7
6
CONTROL PANELS ONLY
PREVIOUS DEVICE
COMMUNICATION LINE
ALL WIRING SHOWN IS SUPERVISED AND POWER LIMITED
SAFE AREA
(+)
(–)(–)
(+)
HAZARDOUS AREA
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