Tyco 800 Installation and user guide

I.S. SYSTEM 800
17A-13-S
11/03
© 2003 Tyco Safety Products PAGE 1 of 8
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ISSUE No. & DATE:
Registered Office: First Floor North Building Walden CourtParsonage Lane Bishops Stortford Herts CM23 5DB
SYSTEM 800 - INTRINSICALLY SAFE MX ADDRESSABLE
FIRE DETECTION SYSTEM
SERVICE AND MAINTENANCE INSTRUCTIONS
1. GENERAL 3
2. CERTIFICATION REQUIREMENTS 3
3. QUARTERLY / HALF YEARLY SERVICE 3
4. HIGH VOLTAGE INSULATION TESTS 4
5. FAULT FINDING PROCEDURES
5.1 HAZARDOUS AREA DETECTION
CIRCUIT 4
5.2 HAZARDOUS AREA SOUNDER
CIRCUIT 4
5.3 TESTING OF EXI800 INTERFACE
MODULE 4
6. TESTING OF GALVANIC ISOLATORS 4
6.1 MTL5021 ISOLATING SOUNDER
DRIVER 4
6.2 PEPPERL + FUCHS KFD0-CS-EX1.54
GALVANIC ISOLATOR 4
7. I.S. INTERCONNECTION WIRING
DIAGRAMS 5
DOCUMENT CONTROL NUMBER /

I.S. SYSTEM 800
17A-13-S
11/03
PAGE 2 of 8
LIST OF FIGURES
Fig. 1 MTL5021 Isolating Sounder Driver 4
Fig. 2 Pepperl+Fuchs KFD0-CS-Ex1.54 Galvanic Isolator 4
Fig. 3 a) I.S. Interconnecting Diagram to MX Addressable Fire Detection Systems 6
Fig. 3 b) I.S. Interconnecting Diagram to MX Addressable Fire Detection Systems 7
Fig. 4 S271i+ Wiring Diagram for Hazardous Areas 8

© 2003 Tyco Safety Products PAGE 3 of 8
I.S. SYSTEM 800
17A-13-S
11/03
EQUIPMENT:
PUBLICATION:
ISSUE No. & DATE:
Registered Office: First Floor North Building Walden CourtParsonage Lane Bishops Stortford Herts CM23 5DB
SYSTEM 800 - INTRINSICALLY SAFE MX ADDRESSABLE
FIRE DETECTION SYSTEM
SERVICE AND MAINTENANCE INSTRUCTIONS
1. GENERAL
The following work must be carried out by Thorn Security
Limited Service Engineers or suitably trained personnel.
WARNING:
ALL MAINTENANCE PRACTICES EMPLOYED
MUST, IN ADDITION TO THOSE STATED HERE,
MEET THE SAFETY AND INSPECTION
REQUIREMENTS SPECIFIED IN THE
MAINTENANCE SECTION OF EN BS 60079-14.
ALL ELECTRICAL EQUIPMENT, INCLUDING
MEASURING INSTRUMENTS, USED
IN THE HAZARDOUS AREA MUST FIRST BE
ACCEPTABLE TO THE CUSTOMER’S SAFETY
OFFICER.
THERE IS A POSSIBILITY THAT THE NATURE OF
THE HAZARD HAS CHANGED OR BEEN CHANGED
SINCE THE LAST SERVICING. THE SYSTEM
DOCUMENTATION SHOULD BE CHECKED BEFORE
ANY SERVICING IS PERFORMED. IF DURING
SERVICING A RISK IS FOUND, WHICH IS NOT
COVERED OR DOCUMENTED, ACTION MUST BE
TAKEN IN ACCORDANCE WITH EN BS 60079-14 TO
RECTIFY THE SITUATION.
ANY WORK CARRIED OUT ON DETECTION OR
SOUNDER CIRCUITS MUST COMPLY WITH THE
REQUIREMENTS OF 17A-13-I,
INSTALLATION INSTRUCTIONS.
2. CERTIFICATION REQUIREMENTS
The Intrinsically Safe systems used for the protection of low
voltage fire detection systems produced by Thorn Security
Limited have been certified category ‘ia’ by the British
Approvals Service for Electrical Equipment in Flammable
Atmospheres (BASEEFA).
•System 800 (BASEEFA*****) can be used for
a Gas Group IIC hazard in a Zone 0, Zone 1 or
Zone 2 environment.
•Sounder System (BASEEFA Ex872028) can be
used for a Gas Group IIC hazard in a Zone 0,
Zone 1 or Zone 2 environment.
For information on Gas Groups and Zones refer to publication
26A-01-G1, Use of Electrical Equipment in Fire Detection and
Extinguishing Systems for the Protection of Hazardous Areas.
For information concerning the equipment which can be used in
the systems refer to 17A-13-I, Installation Instructions.
3. QUARTERLY / HALF YEARLY
SERVICE
WARNING:
NO DEVICES LIKELY TO CAUSE/CONTAIN A
SPARK OR FLAME MUST BE USED TO TEST
DETECTORS IN THE HAZARDOUS AREA.
All service and maintenance must be carried out in accordance
with the ‘Routine Inspections’procedures detailed in EN BS
60079-14. In addition the following must be carried out.
a) Ensure that all devices in the Hazardous Area
still meet the certification requirements for the
type of risk concerned.
b) Check that all detection devices and sounders
in the Hazardous area and the zener barriers/
isolating I.S. interface units inside the I.S.
interface housing are asspecified (refer to 17A-
13-I, Installation Instructions).
c) Carry out the service procedures for the type of
control equipment used. Where sounders are
sited in the Hazardous Area, check that a
sounder circuit fault is raised when:
i) The 24V d.c. supply is disconnected at the
sounder interface, or
ii) the sounder EOL device is disconnected at
the sounder interface.
Where apparatus is removed for maintenance, any exposed
conductors which remain in position must be mechanically and
electrically secured in an appropriate manner so as to prevent
the occurrence of an unsafe condition.
If it is known that a Safety Barrier has been subjected to an
excessive voltage or current, it should be removed from service
and returned to the service branch.

I.S. SYSTEM 800
17A-13-S
11/03
PAGE 4 of 8
4. HIGH VOLTAGE INSULATION
TESTS
WARNING:
HIGH VOLTAGE INSULATION TESTS MUST
ONLY BE PERFORMED USING AN
INTRINSICALLY SAFE INSULATION
TESTER MEETING THE REQUIREMENTS OF
EN BS 60079-14.
5. FAULT FINDING PROCEDURES
5.1 HAZARDOUS AREA DETECTION
CIRCUIT
Locate and rectify any cable fault, by quartering the circuit,
or any detector malfunction by replacement. Ensure that all
detectors or callpoints replaced meet the requirements laid
down in 17A-13-I Installation Instructions.
5.2 HAZARDOUS AREA SOUNDER
CIRCUIT
A sounder circuit fault indication requires that the following
checks be made:
a) Locate and rectify any wiring fault or
sounder disconnection.
5.3 TESTING OF EXI800 INTERFACE
MODULE
If both the Safe and Hazardous Area wiring has been proven
and detection devices on the Safe side raise an alarm at the
Control Panel, but not those on the Hazardous side,
disconnect the EXI800 and replace with a new unit.
6. TESTING OF GALVANIC
ISOLATORS
Simple on-site tests may be carried out on suspect
Pepperl+Fuchs KFD0-CS-Ex1.54 Galvanic Isolators and
MTL5021 Isolating Sounder Drivers.
When disconnecting units from the installation for testing
purposes, care must be taken to keep the Hazardous and Safe
Area wiring segregated. Hazardous Area leads insulated
and secured. Safe Area leads should be insulated and
secured.
Ensure that all testing is carried out in accordance with the
relevant instructions contained in EN BS 60079-14.
6.1 MTL5021 ISOLATING SOUNDER DRIVER
Proceed as follows:
a) Remove any existing connections and then
apply 24V d.c. to terminals 12[+ve] &11[-ve].
b) Check that the open-circuit output voltage
across terminals 2 [+ve] &1 [-ve] is in the range
22 to 24V.
c) Measure the short-circuit output current between
terminals 1 &2, this should be in the range 45 to
52mA.
6.2 PEPPERL + FUCHS KFD0-CS-EX1.54
GALVANIC ISOLATOR
Proceed as follows:
a) Remove any existing connectors and then apply
24V dc to terminals 11 (+ve) and 12 (-ve).
b) Check that the open circuit output voltage across
terminals 1 (+ve) and 2 (-ve) is in the range 21 to
23V.
c) Measure the short circuit output current between
terminals 1 & 2, this should be in the range 55 to
65mA.
Fig. 1
Fig. 2

I.S. SYSTEM 800
17A-13-S
11/03
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7. I.S INTERCONNECTION
WIRING DIAGRAMS
Figures 3a) and 3b) show the I.S. wiring diagrams for the
Thorn Security MX Addressable Fire (Fully Floating)
Detection System.
Figure 4 shows the I.S. interconnection diagram for the
S271i+ Triple IR Flame Detector.
MK/jm/an 4nd December 2002

I.S. SYSTEM 800
17A-13-S
11/03
PAGE 6 of 8
Fig. 3a) I.S. Interconnection Diagram to MX Addressable Fire (Fully Floating) Detection Systems

I.S. SYSTEM 800
17A-13-S
11/03
© 2003 Tyco Safety Products PAGE 7 of 8
EQUIPMENT:
PUBLICATION:
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+
-
SOUNDER
OUTPUT
MX ADDRESSABLE FIRE CONTROLLERS
MX4000
MX4000M
MX1000
T2000
SAFE AREA
+
-
BOX
EARTH STUD
SDR +VE
SDR -VE
SNM800 SOUNDER
NOTIFICATION MODULE
ADDRESSABLE
CIRCUIT
FROM EXTERNAL SUPPLY
(SEE NOTE 2)
24V 0V
BOX
EARTH STUD
EXI800 1
2
3
4
5
6
2
1
R
L
-
+
-
+
NOTE:
WHERE SCREENED CABLE IS USED WITH AN ISOLATING
INTERFACE, THE SCREEN MUST BE TAKEN TO A LOCAL
EARTH AT ONE POINT ONLY. IDEALLY ADJACENT THE
INTERFACE HOUSING.
+
-12
11
2
1
+
-
-
+12
11
2
1
-
+
12
11
+
PEPPERL+FUCHS
KFD0-CS-Ex1.54
INTERFACE UNIT
-
MTL5021
MTL5021
EOL
27k
1WATT
EOL
2k7
NOTE: THERE IS NO LINE MONITORING
AFTER THE MTL 5021 ISOLATOR
ADDRESSABLE
CIRCUIT
Fig. 3b) I.S. Interconnection Diagram to MX Addressable Fire (Fully Floating) Detection Systems

I.S. SYSTEM 800
17A-13-S
11/03
PAGE 8 of 8
Fig. 4 S27li+ Wiring Diagram for Hazardous Areas