installation and maintenance instructions for model 1151eis

installation and maintenance instructions for model 1151eis
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0832-CPD-0284
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INSTALLATION AND MAINTENANCE INSTRUCTIONS FOR MODEL 1151EIS
INTRINSICALLY SAFE LOW PROFILE IONISATION SMOKE DETECTOR
TEST
MAGNET
T
MA EST
GN
ET
Before installing the sensor, please thoroughly read System Sensor’s Guide to Conventional Fire Systems. This manual includes detailed
information on sensor spacing, placement, zoning, and special applications. Copies of this manual are available at no charge from System Sensor.
GENERAL DESCRIPTION
Figure 1. Test Magnet Positioning.
Model 1151EIS ionisation smoke detectors use state-of-the-art sensing chambers and SMD circuitry for maximum reliability. These detectors
are designed to afford open area protection and are for use in hazardous areas where potentially explosive atmospheres are likely to arise. The
classification of equipment required must be confirmed with your responsible authority. 1151EIS detectors are designed to be used with
compatible panels only and must be used in conjunction with a compatible zener barrier or galvanic isolator.
TESTING
Detectors must be tested after installation and following periodic maintenance.
However, before testing, notify the proper authorities that the smoke detector system
is undergoing maintenance and the system will be temporarily out of service.
Disable the zone or system undergoing maintenance to prevent unwanted alarms.
Two LEDs on each detector light to provide a local 360° visible alarm indication. Remote LED annunciator capability is available as an optional
accessory wired to the standard base terminals. These detectors also have a latching alarm feature. The alarm can be reset only by a momentary
power interruption. These detectors may be tested by activating an internal reed switch with a magnet.
SPECIFICATIONS
Size:
Figure 2. Sensor with Cover Removed
IMPORTANT: If testing is carried out using non-intrinsically safe methods, it
must be conducted outside the hazardous area.
Cover Height:
Cover Diameter:
43 mm
102 mm
Weight:
110 g
Operating Temperature Range:
-10°C to 40°C
Note: Do not install in locations where the normal ambient temperature range extends beyond 0°C to 50°C for extended periods
Operating Humidity Range:
10% to 93% Relative Humidity, Non-condensing
Intrinsic Safety Rating:
II 1 G EEx ia IIB T5
Latching Alarm:
Reset by momentary power interruption.
Test the detector as follows:
Test Magnet (Model M02-04-00 - optional)
1.
2.
Test the detector by positioning the test magnet against the detector body approximately 2cm from LED1 in the direction of the
metering socket (see Figure 1).
Both LEDs should latch on within 30 seconds, indicating an alarm and activating the panel.
This detector has been independently tested and certified to EN54 part 7 and BASEEFA approved for intrinsic safety.
Calibrated Sensitivity Test (MOD400R)
COVERAGE
IMPORTANT: MOD400R is not intrinsically safe - the test must be conducted outside the hazardous area
As a general guide, the 1151EIS smoke detector should provide adequate protection of an area 70-90m², where the ceiling is smooth and there is
no significant air movement. Where installation conditions or response requirements vary, different spacing may be necessary. It is essential to
consult local codes of practice for the installation of fire alarm systems before installing smoke detectors.
1.
Use the MOD400R Test Module with a digital or analogue voltmeter to check detector sensitivity as described in the test module manual.
After completion of all tests notify the proper authorities that the system is operational.
BASE SELECTION AND WIRING GUIDE
Detectors that fail these tests should be cleaned as described under MAINTENANCE and re-tested. If the detectors still fail these tests they
should be returned for repair.
Refer to the installation instructions supplied with the plug-in detector bases for wiring details. System Sensor detector bases B401 and B401DG
are available for this smoke detector.
MAINTENANCE
Before cleaning, notify the proper authorities that the system is undergoing maintenance and will be temporarily out of service. Disable the
system to prevent unwanted alarms.
All bases are provided with screw terminals for power and remote indicator connections. The electrical ratings for each detector-base
combination are also included in the base installation instructions.
NOTE:
All wiring must conform to applicable local and national codes and regulations.
NOTE:
Verify that all detector bases are installed, that the detector monitoring circuits have been tested and that the wiring is correct. (Refer to
detector base instructions for testing procedure)
CAUTION
The Detector has a plastic enclosure that may present an electrostatic risk and must not be installed in a position where it may be
subject to a high dust-laden air flow. Clean only with a damp cloth and do not rub.
WARNING
1.
2.
Remove power from detector monitoring circuits before installing detectors.
3.
4.
INSTALLATION
1.
2.
3.
4.
5.
6.
7.
Place the detector into the detector base.
Rotate the detector clockwise with gentle pressure until the detector drops into place.
Continue rotating the detector clockwise to lock it in place.
After all detectors have been installed, apply power to the detector monitoring circuits.
Test the detector as described under TESTING.
Reset the detector at the system control panel.
Notify the proper authorities that the system is in operation.
5.
6.
7.
8.
Tamper-Resistance
The detector bases include a feature that, when activated, prevents removal of the detector without the use of a tool. See the installation
instructions for the detector base for details of how to use this feature.
Remove the detector to be cleaned from the system.
Remove the detector cover (Note: Regulations in some countries may prohibit this operation on ionisation type sensors). Use a small flat
blade screwdriver to gently release each of the four cover removal tabs that hold the cover in place. (See Figure 2)
Vacuum the outside of the screen carefully without removing it.
Remove the sensor screen. Pull the screen straight away from the sensing chamber until it snaps out of place. Replacement screens are
available.
Use a vacuum cleaner and/or clean, compressed air to remove dust and debris from the sensing chamber.
Reinstall or replace the sensing chamber screen by sliding the edge without the tabs over the sensing chamber. Make sure that one of the
screen contacts engages with the PC board contact.
Reinstall the detector cover. Use the test module socket and LEDs to align the cover with the sensor assembly. Snap the cover into place
making sure all tabs are engaged.
When all sensors have been cleaned, restore power to the system and test the sensor(s) as described in the TESTING section of this
manual.
WARNING
LIMITATIONS OF SMOKE DETECTORS
CAUTION
This smoke detector is designed to activate and initiate emergency action but will do so only when used in conjunction with other equipment.
Smoke detectors will not work without power.
Dust covers are fitted to the detectors to help protect units during shipment and when first installed. They are not intended to
provide complete protection against contamination; therefore detectors should be removed before beginning construction, major
re-decoration or other dust producing activity. Dust covers must be removed before the system can be made operational.
Smoke detectors will not sense fires which start where smoke does not reach the detectors. Smoke from fires in chimneys, in walls, on
roofs, or on the other side of closed doors may not reach the smoke detector and trigger the unit.
A detector may not detect a fire developing on another level of a building. For this reason, detectors should be located on every level of a
building.
D100-50-00
1
Pittway Tecnologica S.r.l., Via Caboto 19/3, 34147 Trieste, Italy
I56-2632-006
Smoke detectors also have sensing limitations. Ionisation detectors offer broad range fire-sensing capability but they are better at
detecting fast, flaming fires than slow, smouldering fires. Photo-electronic detectors sense smouldering fires better than flaming fires.
Because fires develop in different ways and are often unpredictable in their growth, neither type of detector is necessarily better and a
given detector may not always provide warning of a fire. In general, detectors can not be expected to provide warnings for fires resulting
from inadequate fire protection practices, violent explosions, escaping gas, improper storage of flammable liquids like cleaning solvents,
other safety hazards, or arson. Smoke detectors used in high air velocity conditions may fail to alarm due to dilution of smoke densities
created by such frequent and rapid air exchanges. Additionally, high air velocity environments may create increased dust contamination,
demanding more frequent maintenance.
Smoke detectors cannot last forever. Smoke detectors contain electronic parts. Even though detectors are made to last over 10 years,
any of these parts could fail at any time. Therefore, test your smoke detector system at least semi-annually. Clean and take care of your
smoke detectors regularly. Taking care of the fire detection system you have installed will significantly reduce your liability risks.
Typical 1151EIS System Diagram
SAFE AREA
HAZARDOUS AREA

Safe area apparatus, which is
unspecified except that it must
not be supplied from or contain
under normal or abnormal
conditions a source of potential
with respect to earth in excess of
253 Vrms or 253 VDC
(NOTE 5)
(NOTE 2)
SHUNT ZENER
DIODE SAFETY
BARRIER OR
ISOLATION
BARRIER (SEE
NOTE 1.)
}
TO NEXT
DETECTOR(S)
3
2
1
4
(T1) (T3) (T2)
Model 1151EIS
Ion Detector
II1G EEx ia IIB T5
Baseefa03ATEX0156X
Terminals 2 and 4 (B401 Base)
(B401 Base)
Group Capacitance Inductance L/R Ratio
µF
mH
µH/OHM
IIB
0.64
12.6
210
IIA
2.14
33
444
B401 Pins
Table 1
Connection
1
Remote LED Indicator (if used)
2
- Vin
3
- Vout
4
+ Vin, + Vout
Table 2
Notes:
1.
Any single channel shunt zener diode safety barrier or single channel of a dual channel shunt zener diode safety barrier
certified by Baseefa or any EEC approved certification body to [EEx ia] IIC having the following or lower output
parameters:
Uz = 28V; Imax: out = 93.3 mA; Wmax: out = 0.67 W
In any safety barrier used, the output current must be limited by a resistor "R", such that Imax:out = Uz/R. Or any of the
following isolation barriers may be used:
MTL : MTL4061 (BAS01ATEX7176), MTL5061 (BAS01ATEX7160)
Pepperl + Fuchs : KFDO-CS-Ex1.51P (BAS98ATEX7343), KFDO-CS-Ex2.51P (BAS98ATEX7343)
2. The capacitance and inductance or inductance/resistance (L/R) ratio of the hazardous area cables between the power terminals
2 and 4 (B401 base) must not exceed the values shown in Table 1.
3. The installation must comply with the appropriate national installation requirements, e.g. in the U.K. BS5345:Part 4:1977 or
BSEN60079-14: 1997.
4. The electrical circuit in the hazardous area must be capable of withstanding an A.C. test voltage of 500 VRMS to earth or frame
of the apparatus for one minute. This note does not apply when using an isolation barrier.
5. An external light emitting diode (LED) may be fitted to terminals 2 and 1 (B401 base). The surface area of the LED must
lie between 20mm2 and 10cm2. The LED and its terminations must be afforded a degree of protection of at least IP20,
and be segregated from other circuits and conductors as defined in clause 6 of EN50020: 2002.
6. The zone wiring of the detector bases should be checked before the detector heads are installed. To make this possible,
this base contains a special spring-type shorting jumper. After a detector base is properly wired and mounted to an
electrical box, make sure that the shorting spring is in contact with terminals 2 and 3. This temporary connection permits
the wiring of the loop to be checked for continuity before installation of the detector heads. The shorting spring in the
base automatically disengages when the detector head is removed from the base. DO NOT remove the shorting spring
since it re-engages as the detector head is turned in the base, completing the circuit.
7. The system must be marked with a durable label. The label should appear on or adjacent to the principle item of
electrical equipment in the system or at the interface between intrinsically safe and non intrinsically safe circuits. This
should show Baseefa 03Y0181 and SYST or System.
CAUTION
Please refer to control panel installation instructions for specific barrier/control panel compatibility information.
D100-50-00
2
Pittway Tecnologica S.r.l., Via Caboto 19/3, 34147 Trieste, Italy
I56-2632-006
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