FHSD700C Series
Installation and User Manual
June 2009
Document Number: 16097_01
GE Security
FHSD700C Series Product Guide
Document Conventions
The following typographic conventions are used in this document:
Convention Description
Bold Used to denote: emphasis Used for names of menus, menu options, toolbar buttons
Italics
Used to denote: references to other parts of this document or other documents. Used
for the result of an action.
The following icons are used in this document:
Convention Description
Caution: This icon is used to indicate that there is a danger to equipment. The danger
could be loss of data, physical damage, or permanent corruption of configuration
details.
Warning: This icon is used to indicate that there is a danger of electric shock. This may
lead to death or permanent injury.
Warning: This icon is used to indicate that there is a danger of inhaling dangerous
substances. This may lead to death or permanent injury.
Contact Us
Please contact your local GE representative, or visit www.gesecurity.net.
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Codes and Standards Information for Air Sampling Smoke
Detection
We strongly recommend that this document is read in conjunction with the appropriate local codes an d standards for smoke
detection and electrical connections. This document contains generic product information and some sections may not comply
with all local codes and standards. In these cases, the local codes and standards must take precedence. The information
below was correct at time of printing but may now be out of date, check with your local codes, standards and listings for the
current restrictions.
FDA
This GE Security product incorporates a 658 nm laser device with an average power less than 10 mW, and is classified as a
Class 1 laser product that complies with FDA regulations 21 CFR 1040 with deviations pursuant to Laser Notice 50, and with
IEC / EN 60825-1. Access to the laser chamber is on the underside of equipment and is restricted by cover. The cover may
only be removed by qualified personnel. The laser emits visible light and can be hazardous if viewed with the naked eye.
CAUTION - Use of controls or adjustments of performance or procedures other than those specified herein may result in
hazardous radiation exposure.
Regional Regulatory Requirements and Notices
UL
For open area protection the Fire 1 alarm threshold (signal) must be set within the limits specified by the following conditions:
FHSD721C / FHSD721DC, FHSD724DC and FHSD726DC detectors must have a Fire 1 threshold set within 0.04 to
0.16% obs/ft
FHSD7215DC detectors must have a Fire 1 threshold set between 0.04 to 0.7% obs/ft
FHSD720C detectors must have a Fire 1 threshold set within 0.04 to 0.29% obs/ft
EN54-20
The product must use a power supply conforming to EN54-4.
The product is compliant with EN54-20 sensitivity requirements provided that the hole sensitivity is better and transport time is
less than the following values:
FHSD720C FHSD721C /
FHSD721DC
FHSD724DC FHSD726DC FHSD7215DC
Class A
0.6% obs/m
60 secs
0.6% obs/m
60 secs
1.5% obs/m
60 secs
1.5% obs/m
60 secs
0.1% obs/m
30 secs
Class B
1.6% obs/m
60 secs
3.6% obs/m
60 secs
4.5% obs/m
60 secs
4.5% obs/m
75 secs
0.1% obs/m
30 secs
Class C
3.6% obs/m
60 secs
10% obs/m
60 secs
10% obs/m
60 secs
10% obs/m
90 secs
1% obs/m
30 secs
The product is compliant with EN54-20 flow monitoring requirements provided that the following conditio ns are met:
Flow Low and Flow High parameters should be set to 85% and 115% respectively for FHSD720C, FHSD721C /
FHSD721DC, FHSD724DC and FHSD726DC detectors
TRCPRESS parameter should be set to 25 for FHSD7215DC detectors
Additional Information
Class A, B and C detectors passed EN54-20 approvals testing with the following number of holes and detector sensitivities:
FHSD720C FHSD721C /
FHSD721DC
FHSD724DC FHSD726DC FHSD7215DC
Class A
12 holes
0.04% obs/m
16 holes
0.04% obs/m
20 holes
0.05% obs/m
30 holes
0.05% obs/m
15 holes
0.1% obs/m
Class B
36 holes
0.04% obs/m
72 holes
0.04% obs/m
48 holes
0.06% obs/m
72 holes
0.06% obs/m
15 holes
0.1% obs/m
Class C
36 holes
0.1% obs/m
72 holes
0.1% obs/m
72 holes
0.1% obs/m
72 holes
0.1% obs/m
15 holes
1.0% obs/m
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FHSD700C Series Product Guide
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iii
Approvals
CFE
EN54-20, VdS
CPD
CE EMC
LVD
FHSD700C Series Product Guide
GE Security
Table of Contents
1 Introduction................................................................................................................................1
1.1 Detector Models.................................................................................................................1
2 Principle of Operation...............................................................................................................2
2.1 Flow Monitoring .................................................................................................................2
2.2 Alarms and Trace Mode ....................................................................................................3
2.3 Detector Display Panel......................................................................................................3
3 Installation..................................................................................................................................6
3.1 Mounting the Detectors......................................................................................................6
3.2 Cable Connections ............................................................................................................8
3.3 Connection of Sampling Tubes........................................................................................14
3.4 Remote Display Panel.....................................................................................................15
4 Starting Up...............................................................................................................................16
4.1 Flow Normalization..........................................................................................................16
5 Setup and Button Functionality.............................................................................................18
5.1 Access Codes..................................................................................................................18
5.2 User Functions.................................................................................................................19
5.3 Main Menu Modes...........................................................................................................20
5.4 Input-Output Modules......................................................................................................31
6 Maintenance.............................................................................................................................33
6.1 Servicing..........................................................................................................................34
Appendix A: Display Panel Navigation....................................................................................35
Appendix B: Communications Guide.......................................................................................36
B.1 Installation Guide for RS485 Equipment..........................................................................36
Appendix C: Laser Chamber Safety.........................................................................................38
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FHSD700C Series Product Guide
1 Introduction
Welcome to the GE Security FHSD700C Series Product Guide. This document is written to provide you
with information on technical specifications, cabling, and how to install, configure and operate these
detectors.
FHSD700C Series detectors are aspirating smoke detectors that provide early warning of fire by
analyzing air drawn through an air sampling pipe network. A highly sensitive detector chamber is able to
detect smoke at very low concentrations. Embedded and PC software enable the configuration of a
wide range of user defined parameters and reporting capabilities and extended input and output
functionality is achieved through the addition of plug-in modules.
1.1 Detector Models
Detectors in the GE Security FHSD700C range differ in a variety of ways including the number of
sample tube inlets available, ability to provide individual pipe sampling, aspiration system and sample
tube type.
FHSD724DC to FHSD7215DC detectors incorporate a rotary valve as a method of sampling individual
pipes and providing addressability. This unique feature is described in Principle of Operation on page 2.
The two typ
es of aspiration systems used include an internal fan (low pressure system), or an internal
vacuum pump (high pressure system). High pressure systems are capable of drawing air samples down
small bore tubes while low pressure systems use wide-bore rigid sample tubes. Small bore systems are
often preferred when installations need to be unobtrusive.
RS232, RS485 and TCP/IP interfaces enable flexible connectivity options for detector networking,
configuration and monitoring via GE Security Fire System Configuration and Management Software: GE
Security VSC and VSM4. When connected by TCP/IP, the Fire System Management software enables
the configuration and monitoring of a large number of systems by a single PC, which can be accessed
anywhere via any standard internet connection.
The differentiating attributes for the detector models are summarized in the following table.
Table 1-1: Detector Models and Differentiating Factors
Model FHSD720C FHSD721C /
FHSD721DC
FHSD724DC FHSD726DC FHSD7215DC
Applicable EN54-20 Classes A / B / C A / B / C A / B / C A / B / C A / B / C
Number of Sample Tubes 2 4 4 6 15
Individual Sampling (rotary valve) No No Yes Yes Yes
Individual Flow Monitoring No Yes Yes Yes Yes
Flow Monitoring System Thermal Pressure
Sample tube inlet diameter 25mm OD 25mm OD 6mm OD / 4mm ID
Aspirator system Fan Pump
Area Coverage 2000m2 (VdS)
850m
2
(UL)
2000m
2
2000m2 2000m2 N/A
Available with Beacon Option No Yes Yes Yes Yes
Ethernet FHSD720NETC
only
FHSD721DC only Yes Yes Yes
Note: FHSD7215DC detectors are not designed for open-area coverage. However, for the purpose of
calculating sampling point spacing, the equivalent maximum area coverage is 1500 m
2
(16 000
ft
2
).
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2 Principle of Operation
Air samples are drawn through the pipe network from the protected area through wide or small bore
pipe systems. Wide bore tubes generally have sampling holes drilled at intervals within the protected
area while small bore tubes normally sample air at their end points.
The aspirator draws air from the pipe network into the detector inlets where the samples are combined,
filtered, and directed to the laser detection chamber. Systems incorporating a rotary valve have an
Overall position which draws air equally from all sectors. In contrast, the FHSD721C / FHSD721DC has
an inlet manifold which combines samples from up to four inlet pipes while the FHSD720C uses a Tpiece of pipe to combine air sampled from two inlet pipes.
All models, except the FHSD720C, have flow monitoring on each inlet. The FHSD720C has flow
monitoring of the combined air-flow. More information on flow monitoring can be found in Section 2.1.
The detection chamber consists of a laser beam directed across an optical chamber, through which the
air sample flows. A photodetector built into the optical chamber measures the amount of light scattering
from particles in the air. A clean air sample will cause very little scattering but as the smoke density of
the sample increases, the amount of light directed onto the photodetector will also increase. The light
signal is processed to become a direct measurement of the amount of obscuration caused by smoke.
Information about the laser chamber can be found in Appendix C.
If the smoke detected is higher than the preset alarm thresholds in the detector (Alert, Action, Fire 1 and
Fire 2), an alarm will be reported. One or more Alarm relays, preset to activate at an alarm threshold will
signal the host panel after a preset time delay. Alarm states are also shown on the display panel, and
an audible warning is given. An optional alarm beacon can also be fitted for all detectors except the
FHSD720C.
Systems with a rotary valve (FHSD724DC to FHSD7215DC) have an additional preset trigger level,
Trace, usually set below the Alert level. When Trace is activated, the rotary valve will sequentially scan
the sectors, in order to determine the source of the event. While in Trace mode, the default levels for
Alert, Action, Fire 1 and Fire 2 are the same as used for Overall monitoring. If required, different levels
for Alert, Action, Fire 1 and Fire 2 may be set for each sector in the Sector Alarms menu. The Overall
alarm levels may also be changed as can all delay times (FHSD720C and FHSD721C / FHSD721DC
only).
2.1 Flow Monitoring
The control system monitors for blockages or disconnection of tubes for each sector by detecting when
the air flow is above or below acceptable flow thresholds. Flow thresholds are dependant on air flows
measured during normalization.
The normalization process enables the detector to learn typical air flow characteristics of the system
and sets these expected flow readings to 100% for each sector. A normalization sequence must be
performed at installation. The detector has default high and low limits and associated delay times, which
may be changed in the Configure menu.
Air flow characteristics of the system are highly dependent on the detector's pipe network. The design of
the pipe network should be considered carefully prior to installing the system.
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2.2 Alarms and Trace Mode
The default settings of the four alarm states (Alert, Action, Fire1 and Fire2) and Trace are shown in the
following table. The Trace threshold is only applicable to detectors FHSD724DC to FHSD7215DC,
which have a rotary valve.
Table 2-1: Default Behavior of Alarm States and Trace Mode
Level Latched / Unlatched Threshold Delay Beacon Pulse (On:Off) Sounder
Trace Latched 0.03% obs/m 3 secs - Continuous
Alert Latched 0.04% obs/m 3 secs 0.5 secs : 2 secs Continuous
Action Latched 0.06% obs/m 3 secs 0.5 secs : 1 sec Continuous
Fire1 Latched 0.08% obs/m 3 secs 0.5 secs : 0.5 secs Continuous
Fire2 Latched 0.1% obs/m 3 secs Continuous Continuous
Trace parameters apply when the rotary valve is in the Overall position and all sectors are being
monitored. If latched, the Trace indicator will remain illuminated after the initiating event has ceased. It
does NOT mean that the unit will continue indefinitely in Trace (scan) mode. The system will only
continue in Trace mode if the detected smoke level is above the Trace threshold after scanning. The
Alert relay may be programmed to be activated by the Trace threshold. Its action will then follow that of
the Trace indicator.
If any alarms are unlatched, all resultant actions (relay contacts, display panel indicators, sounder and
beacon) will clear if and when the triggering event ceases. If it is latched, all the warning mechanisms
are maintained until action is taken by the user (please see Detector Display Panel on page 3). These
alarm states are global a
nd will be set depending on the smoke density being measured, regardless of
which sector is being sampled. Once in Trace mode, each sector has an alarm indicator associated with
it. These individual sector alarms pulse progressively, depending on the degree of alarm status, in the
same way as the Beacon (please see Default Behavior of Alarm States and Trace Mode on page 3).
2.3 Detector Display Panel
All FHSD700C detectors (except for the FHSD720C and FHSD721C) can have a full display panel or a
blank panel fitted to the main system. The FHSD720C and FHSD721C have no display but can be
connected to a remote display unit via RS485 communications from the Main I/O module. The display
panel is used for annunciating the detector status and smoke levels, and can also be used to configure
the detector.
The display consists of a range of configuration and control buttons (Item 1 in Figure 2-1) and LEDs to
indicate Alarms, Faults, Power, Reset and other operational status (Items 5 and 6 in Figure 2-1). When
configuring the detector via the display panel, some of these configuration and control buttons will have
a dual function to allow the user to enter parameter values, scroll through configuration items, or enter
an Access Code. Alternate functions are indicated by LEDs located above the buttons (Item 3 in Figure
2-1) and are activated when the associated button can be used for the alternative function.
More information about button functionality, Access Codes and how to setup the detector with the Main
Menu can be found in Setup and Button Functionality on page 18. A flowchart illustrating how to
navigate through the display panel can be found
in Appendix A Display Panel Navigation on page 35.
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1. Control and Configuration Buttons
2. Status Display
3. Alternate Button Function Indicators
4. Sector, Alarm and Fault Indicators
5. Display LEDs
6. Alert, Action, Fire1 and Fire2 Indicators
7. Logarithmic smoke density bargraph
Figure 2-1: FHSD700C Series Display Panel
The following describe the display panel for the FHSD700C detector.
1. Control and Configuration Buttons
All local user-interface options are done using these buttons.
1. Not used for FHSD700C detectors
2. Menu key
3. Test key
4. Scan / parameter scroll down key
5. Isolate / parameter scroll up key
6. Sounder silence / enter key
7. Reset / value scroll down key
8. Accept / value scroll up key
Figure 2-2: Control and configuration keys
2. Status display
Will normally show the smoke density value. Also used for all Setup and Configure procedures.
3. Alternate button function indicators
When the unit is in a mode accessed by the Main Menu, the five right-most buttons can change to Scroll
and Enter functions.
4. Sector, Alarm and Fault Indicators
Individual Sample, Alarm, and Fault indicators for each sector. The All alarm is the Trace indicator.
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FHSD700C Series Product Guide
5. Display LEDs
Table 2-2: LED Descriptions
LED Description
Power Indicates that the power supply is ON.
If the system processor is faulty, the General Fault, Power and Comms LEDs will be
activated simultaneously.
General Fault
The detector has one or more faults, which will also be shown by other specific fault
indicators. The Fault relay contacts always follow the state of this indicator.
Isolated will also show as General Fault.
If the system processor is faulty, the General Fault, Power and Comms LEDs will be
activated simultaneously.
Processor
Reset
The processor has been reset
Mains Fault This indicator may activate due to an incorrect device configuration.
To prevent this from occurring, please ensure that Pin 2 and Pin 5 on CN2 are linked. For
more information, please see External Power Supply Connection on page 9.
Flow Fault The flow rate for any sector is outside the bounds set by the High and Low flow limits. All
sectors are normalized by a run-time sequence; on high pressure systems, the pipe lengths
should be balanced.
Battery Fault This indicator may activate due to an incorrect device configuration.
To prevent this from occurring, please ensure that the STANDBY parameter in the
Configuration menu is set to 0. For more information, please see Table 5-4 on page 22.
Aspiration
Fault
The rotary valve has a fault.
Detector Fault The laser smoke detector has d evelop ed a fault.
Isolated
This has been put into Isolated mode when the unit functions normally, but alarm reporting
via the relays is disabled.
Note: General Fault will also be shown.
Comms Fault An element of the internal RS485 communication link or remote display is faulty.
If the system processor is faulty, the General Fault, Power and Comms LEDs will be
activated simultaneously.
Hold Flashes when a manual scan is being performed.
Unlock The Panel is unlocked - meaning that an access code has been entered. It will clear when
normal operation is resumed.
6. Alert, Action, Fire1, and Fire2 Indicators
These operate in tandem with corresponding relays on the I/O board to indicate progressive levels of
smoke and are programmable for obscuration level. The FHSD721C / FHSD721DC and FHSD720C
also enable these indicators to be configured for time delays.
7. Logarithmic smoke density bar graph
Displays 0 to 20 %obs/m with a resolution of 0.01 %obs/m at the lower end (0 - 6.09 %obs/ft).
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3 Installation
The units should be installed in accordance with the following installation instructions and in a manner
acceptable to the local Authority Having Jurisdiction (AHJ). The units are also intended to be installed in
accordance with NFPA 72 National Fire Alarm Code.
Warning: Use of controls or adjustments of performance or procedures other than those specified
herein may result in hazardous radiation exposure.
The following steps should be carried out in order to correctly install the system:
1. Securely mount the back box to a suitable wall or support using the three points shown in the
fixing diagrams in Section 3.1. M6 or M8 screws are suitable.
2. Connect the cables for the power supply and any I/O modules. Ferrite cores should be fitted to
the power cable, whether DC or AC.
3. Fit the pipe network to the system. For details on how to design and install a pipe network, refer
to www.gesecurity.net.
3.1 Mounting the Detectors
Careful consideration should be given to the mounting location of the detector unit to ensure that it is:
Positioned at an accessible height to facilitate commissioning, routine testing and maintenance.
Positioned in an area where the exhaust air pipe will remain clear of obstacles at all times.
Not installed above a heat source such as a radiator or in direct air flow source such as Air
Conditioners.
Secure and free from operation by unauthorized personnel.
Figure 3-1: FHSD720C Mounting Diagram and Dimensions
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FHSD700C Series Product Guide
Figure 3-2: FHSD721C / FHSD721DC Mounting Diagram and Dimensions
Figure 3-3: FHSD724DC and FHSD726DC Mounting Diagram and Dimensions
Figure 3-4: FHSD7215DC Mounting Diagram and Dimensions
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3.2 Cable Connections
Note: All work carried out on these units should be performed by fully qualified personnel. There are no
user serviceable parts inside.
CAUTION: Before installing or removing batteries or carrying out any work that requires
the removal of any board ensure that the power supply is disconnected.
A fused junction box may be used as an external disconnect device.
3.2.1 FHSD721C / FHSD721DC to FHSD7215DC Main Board Connections
This section describes the power, input / output and communications connections for the FHSD721C /
FHSD721DC to FHSD7215DC detectors and how to access the interfaces for the connections. A
summary of these interfaces is shown in the following table.
Table 3-1: Standard FHSD721C / FHSD721DC to FHSD7215DC Connections
Category Name Description
24 VDC Input 24 VDC power input from external power supply.
For more information, please refer to External Power Supply Connection on
page 9.
Power
Auxiliary 24 VDC
Output
24 VDC power output rated to 1A for powering an external sounder,
addressable I/O devices etc.
Fault Relay Output Activates when a Fault is detected.
Alarm Relay
Outputs
Alarm relays for each Alarm level (Alert, Action, Fire 1, Fire 2) that are
activated when the corresponding alarm level is detected.
Input / Output
Remote
Reset/Isolate Input
Dual action input for remote reset and isolate.
Remote Reset: Activated by applying 24 VDC.
Remote Isolate: Activated by applying 24 VDC for 8 seconds or more.
Once 24 VDC is removed, the system reverts to normal operation.
The function of this input is programmed in the Setup Menu. More
information can be found in Section 5.3.8 SETUP: Setup Menu on page 29.
RS 485 Enables the following connections:
Connection to a remote Display Panel
Connecting up to 30 detectors on an RS 485 multi-drop netwo rk
Connection to a PC with GE Security VSC or VSM4 via a RS232-
RS485 converter.
Ethernet Enables TCP/IP connections to a PC with GE Security VSC or VSM4 via
LAN/WAN.
Note: Not available for the FHSD720C and FHSD721C.
Communications
RS 232 Enables a direct serial connection to a PC with GE Security VSC or VSM4
for configuration and monitoring.
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FHSD700C Series Product Guide
Detector Access
To gain access to the interior of the detector, first isolate the power supply then remove the front cover.
It is secured by two screws underneath and hinged at the top, allowing complete removal. If the beacon
option is fitted, a cable-loom is attached; this may be unplugged at either end, but it may be easier to
detach/reattach the plug connecting to the main unit.
To access the Fault Relay and other I/O Module connections, the front panel must be dropped down by
loosening the two knurled screw fixings at either side.
As shown in the diagrams in Section Mounting the Detectors on page 6, knock-out cable entry points
are provided at the top a
nd left-hand side of the metal back box. Where the field wiring to the unit is not
via conduit tubing, strain-relief type cable glands of a suitable size to fit the 25 mm diameter holes must
be fitted to all used cable entry holes. These cable glands shall be fitted so as to provide strain relief
and ensure that the protective earth connection (where used) is the last conductor to take any strain.
External Power Supply Connection
FHSD700C detectors are powered by an external 24 VDC power supply.
The power supply cable cores should be fitted individually with ferrite cores, close to the cable gland
inside the equipment case. To fit the cables with the ferrite cores, insert the 24V and 0V conductors
through the ferrite cores and wrap around once to provide maximum effectiveness.
Connect the 24 VDC power supply to the 5-way connector (CN2) on the I/O board under the control
panel as shown in Figure 3-5.
1. External Power Supply
2. No Connection
3. Link
Figure 3-5: 24 VDC connection for FHSD700C Detectors
The MAINS/BAT terminal must be linked to 0 V. Failure to do so may result in a Mains Fault. The VBAT
and BATT TEST terminals should be left unconnected.
Ensure that in the Configuration menu, the STANDBY parameter is set to 0. For more information about
Configuration mode, please see CONFIGURE: Configuration Mode on page 21.
Grounding and Fuse Protection
An M5 chassis earthing stud is provided for the grounding of the unit using a suitable gauge of wire or
earth braiding (0.75 mm
2
minimum) to a primary earth point (i.e. copper water pipe or an earth-stake
etc.). This chassis earth should be connected on all DC powered installations.
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1. Knock-out cable entry holes
2. M5 Chassis grounding stud
3. RS232 connector
4. Ethernet connector
5. Fuse (1 A)
6. Main I/O board
7. Beacon connector
8. Display & valve connector
9. Programming connector
10. Optional I/O modules
11. Drop-down display panel
Figure 3-6: FHSD721C / FHSD721DC to FHSD7215DC input and output interfaces
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FHSD700C Series Product Guide
3.2.2 FHSD720C Connections
The FHSD720C detector provides interfaces as shown in Figure 3-7. Tables in Connection Interfaces
on page 12 provide detailed connection information for:
24 VDC power supply.
Fault Relay contact connections.
Auxiliary 24 VDC output supply - fused to 1 A Fast-blow and can be used for powering an
external sounder, addressable I/O units etc.
Remote Reset input line - activated by applying 24 VDC.
RS485 Communications - used for operating the unit via a remote panel, or for connecting up to
30 detectors.
Ethernet connection - used for connecting to a host computer. The unit can be monitored and
driven remotely via GE Security VSC or VSM4 software.
RS232 connection - used for conducting Test/Configuration functions and interrogation of the
Fault Log Data when connected to a PC running configuration software.
1. RS232
2. Ethernet
3. Fuse 1A
4. I/O Board
5. Output Relay Contacts
6. Optional I/O Modules
7. Programming Connector
Figure 3-7: Diagram of the I/O board for the FHSD720C detector
FHSD720C units are powered by an external 24 VDC power supply.
Access to the interior of the unit is gained by removal of the front cover. This is secured by four screw
lock fixings (one at each of the four corners), releasing these fixings allows the removal of the cover
complete with the ‘self-retained’ fixings.
The Fault Relay and other I/O Module connections are all located on the (i602) printed circuit board
immediately on the front face of the internal metal sub-chassis.
The DC Supply fuse (FS1), TR5 style fuse 250V 2A Time Delay, is located on the (i602) printed circuit
board.
A cable entry gland is provided on the rear of the bottom casing for entry of the DC Supply Cabling and
the field wiring cables. This cable gland is fitted so as to provide strain relief. The power supply cable
cores should be fitted individually with ferrite cores, provided for the purpose, close to the cable gland
inside the detector case. The 24 V and 0 V conductors are fed through the ferrite core and wrapped
round once to provide maximum effectiveness.
A second cable entry hole is provided, fitted with 0.2 to 2 mm grommet, to facilitate the Ethernet cable
(if used).
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3.2.3 Connection Interfaces
The following tables define input and output connections for the FHSD700C Series.
Table 3-2: Connections for i602 I/O Board
CN1: RS232 Interface
2 Receive Data
3 Transmit Data
5 0 V
1, 4, 6, 7,
8, 9
N/C
Shell Earth (Screen)
Requires suitable twisted screened cable up to a maximum distance of 15 m.
CN2: DC Supply
1 24 VDC in
2 0 VDC in
3 N/C
4 N/C
5 Mains/Battery
Requires 16 x 0.25-15 A (18 AWG) cable (0.75mm
2
minimum IEC60227 H05 W-F/H05 WH2-F2
for EC).
Note: Link Pin 2 (0 V) and Pin 5 (MAINS/BAT). See External Power Supply Connection on page
9 for further details.
CN3: Auxiliary Supply Output Interface
1 0 VDC
2 24 VDC
Requires 7 x 0.2 - 6 A (24 AWG) cable (1 A maximum load).
CN4: Remote Reset Interface
1 - input
2 + input
Opto isolated input. 24 VDC low current signal.
CN6: RS485 Interface
1 Shield
2 RS485 3 RS485+
Belden 9842 cable (or suitable equivalent)
Note: Ensure that the Mid/End Jumper Link is fitted correctly on pins 7/8/9 of CN 5. Please see
Appendix B.1 on page 36 for further details.
CN7: Output Relay Interface
1 C
2 NC
3
FIRE 2
NO
4 C
5 NC
6
FIRE 1
NO
7 C
8 NC
9
ACTION
NO
10 C
11 NC
12
ALERT
NO
13 C
14 NC
15
FAULT
NO
Requires 7 x 0.2 - 6 A (24 AWG) cable
Note: Maximum relay contact rating is 2 A @ 30 VDC.
Note: Please see 4-Channel Relay Module on page 31 for further details.
Note: Connection CN14 is only used for special applications.
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Table 3-3: Connections to RABBIT Processor Board
Connector Pin Description Description
8-pin RJ45 Standard Ethernet connections
Standard Ethernet cable.
Note: See Installation Guide for RS485 Equipment on page 36 for further details.
Table 3-4: Connections From 4 Channel Relay Board (Optional Module)
Output Relay Interface (i606)
1 C
2 NC
3
RELAY 1
NO
4 C
5 NC
6
RELAY 2
NO
7 C
8 NC
9
RELAY 3
NO
10 C
11 NC
12
RELAY 4
NO
Requires 7 x 0.2 - 6 A (24 AWG) cable.
Note: Maximum relay contact rating is 2 A @ 30 VDC.
Note: Please see 4-Channel Relay Module on page 31 for full operational details .
The following tables do not apply to the FHSD720C detector.
Table 3-5: Connections To Remote Panel (Optional) - from I620 Control Board
RS485 Remote Control Data
1 +24 VDC (Supply Out) Belden 9842 (24 AW G) cable (or equivalent)
2 0 V (Supply Common)
3 RS485 +
4 RS485 -
Note: Ensure that the Mid/End Jumper Link is fitted to the End position (pins 1 and 2 of CN 6).
Note: Please see Sections Remote Display Panel on page 15 and Installation Guide for
RS48
5 Equipment on page 36 for further details.
Note: Please refer to Section Remote Display Panel on page 15 for details.
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FHSD700C Series Product Guide
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3.3 Connection of Sampling Tubes
There are several common guidelines that should be followed when attaching the pipe network to the
FHSD700C detector:
Pipes must NEVER be glued to the inlets of the detector
Pipe network itself MUST be glued together
Use removable unions where necessary
Unused inputs on FHSD7215DC detectors should be looped to one another using short lengths of
microbore. For example, if an FHSD7215DC has unused inputs 9 to 15, one way of connecting the
unused inputs would be to use short pieces of microbore to connect inputs 9 to 12, 10 to 13, 11 to 14
and have input 15 capped off. Ensure that these short lengths of microbore do not kink.
Do not insert ANY object into the inlet ports other than the correct size of piping. This is
to avoid damage to delicate electronic flow sensor components mounted just inside
each port opening.
Other pipe and inlet specifications are addressed in the following table.
Table 3-6: Detector Inlet to Pipe Network Termination Specifications
Detector Inlet Port Acceptable Pipe
or Adapter
Maximum Pipe
Length
Other Considerations
FHSD720C 25mm outer-
diameter UPVC
tubes
25mm; or
26.7mm (0.75in.)
with 25 to 26.7mm
(0.75in.) adaptors
2 x 100m -
FHSD721C /
FHSD721DC
Tapered push-fit 26.7mm (0.75 in.)
to 25mm
4 x 100m -
FHSD724DC &
FHSD726DC
Tapered push-fit
25mm; or
26.7mm (0.75in.)
with 25mm to
26.7mm (0.75in.)
adaptors
4 x 100m
or 6 x 100m
-
FHSD7215DC - 6mm outer-
diameter, 4mm
inner-diameter
flexible nylon tube
50m
Note: Tube lengths
should be equal
Other materials may be used
e.g. FEP/ Stainless Steel with
suitable adaptors for harsh
environments
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3.4 Remote Display Panel
An installation kit is available for mounting a display panel up to 1 km away from the detector. It
contains:
1 Blanking plate
1 Mounting Box
1 Fixing kit
1. Jumper Link
2. RS485
3. 24 VDC power
Figure 3-8: Display board and terminal for remotely connecting the Display Panel
Suitable double twisted pair cable for connecting RS485 communications and 24 VDC power can also
be supplied. More information may be found in Installation Guide for RS485 Equipment on page 36.
Ensure that the electrica
l characteristics of the cable connected are appropriate for the distance
between the detector and display module.
When using the double twisted pair cable, use one pair for RS485 communications, the other pair for 24
VDC supply, and ensure that matching signals are connected at each end.
To use the Display Panel remotely, the main unit must also be configured for remote display operation
by following these steps (please see Figure 5-1 for User Function buttons):
1. Press MENU
2. Use Parameter UP & DOWN to reach SETUP (Scan and Isolate buttons)
3. Press ENTER
4. Enter Level 2 Access Code (693) - please refer to Access Codes on page 18 for details on the
Access Cod
e
5. Use Parameter UP & DOWN to reach REMPANEL
6. If the display shows REMPANEL 0 then press Value UP to get REMPANEL 1
7. Press ENTER
8. Press MENU twice to revert to normal
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FHSD700C Series Product Guide
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4 Starting Up
After installation, it will be necessary to power up the system for configuring the detector according to
site requirements and also to ensure that the detector and associated pipe network are properly
installed.
The system takes approximately 30 seconds to power up.
If the system or any detector on the network fails to power up, re-check that all power wires are
securely connected to their respective terminals and the polarity is correctly maintained.
During power-up, the following sequence of events occurs:
Sounder beeps
Aspirator starts
Display shows a rolling text message showing:
FHSD700C
Software version: VERSION *.**
Optional text 1
Optional text 2
Optional text 3
Fault indicators are activated for current faults
Current smoke background level (% obs/m) is displayed
Optional text information are user definable options differing from the factory default settings:
1. REM PANEL - the unit may be configured to operate the display panel remotely using the RS485
communications.
2. NO DET FLOW - the flow measurement through the detector chamber itself may be disabled
The detector(s) may show faults immediately after power up and this is normal. Reset the detector(s) to
unlatch the relays and fault LEDs. The fault LEDs on any display connected to the system will light up
(this is normal).
4.1 Flow Normalization
After the initial power-up of the system, flow normalization is necessary for the detector to learn the air
flow characteristics of the system. To normalise the air flow for a detector, please refer to the following
sections.
4.1.1 Wide Bore systems (FHSD720C, FHSD721C / FHSD721DC,
FHSD724DC, FHSD726DC)
Air-flow is directly affected by the fan speed in wide bore systems. The fan speed is programmable from
3 to 10 (please see Configuration Mode Section CONFIGURE: Configuration Mode on page 21) and the
factory default setting
is 5. It is recommended that it be left at 5 unless otherwise advised (e.g. long pipe
lengths).
Once the pipe work has been completed it is necessary for the unit to learn the values of flow rates at
each inlet. Once done, all displayed flow rates will be normalized to 100%. The process will take about
six minutes, and a rolling text message indicates progress.
To normalise air flow, please follow these steps:
1. Press MENU.
2. Use Parameter UP & DOWN (Scan or Isolate buttons) to scroll to CONFIGURE.
3. Press ENTER (Sounder silence button).
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17
4. Enter Level 1 Access Code (260) - please see Section Access Codes on page 18 for more
information on Access Codes.
5. Use Parameter UP & DOWN to reach SETFAN (for high pressure units scroll to TESTTIM). For
more information please refer to SETFAN on page 24.
6. Press ENTER.
The display
should show SETFAN 5 (the digit 5 should flash)
7. Press ENTER.
A rolling text message shows progress. When complete, the display resumes at OBSC/M 0.00%.
Normalization takes about 6 minutes. It is advised that the user does not try to change any
settings or revert to the menu during the normalization process.
Note: If the unit is in alarm a flow calibration cannot be performed.
Note: Press MENU to abort normalization at any stage.
Note: When complete, the display resumes at OBSC/M 0.00%
4.1.2 Small bore systems (FHSD7215DC)
Small bore systems rely on the pump speed to provide the vacuum rates in the system. The pump
speed cannot be altered from the factory default value under any circumstances.
Please follow these steps to normalise the air flow for a small bore system.
1. Press MENU.
2. Use Parameter UP & DOWN (Scan or Isolate buttons) to scroll to CONFIGURE.
3. Press ENTER (Sounder silence button).
4. Enter Level 1 Access Code (260) - please see Section Access Codes on page 18 for more
information on Access
Codes.
5. Use Parameter UP & DOWN to reach TESTTIM.
6. Press ENTER.
A rolling text message shows progress. When complete, the display resumes at OBSC/M 0.00%
and all displayed flow rates will be set to 100%.
Normalization takes about 6 minutes. It is advised that the user does not try to change any
settings or revert to the menu during the normalization process.
On completion of the flow calibration process, document the values identified in the following procedure.
1. Enter the Maintenance list to display REL in.
2. Record REL in with system monitoring in overall position. Reset the unit to initiate a scan.
3. Record REL in values for each sector.
FHSD700C Series Product Guide
GE Security
5 Setup and Button Functionality
The configuration of the detector is achieved by using a PC loaded with GE Security configuration
software or through the display panel. This section provides information on the button functionality in the
display panel, and how to setup the detector and navigate through the Main Menu options. A flow chart
that shows a summary of these navigation options may be found in Display Panel Navigation on page
35.
Figure 5-1: FHSD700C detector buttons for user functions
5.1 Access Codes
Access to some modes in the Main Menu and other configuration and control functions require the user
to enter an Access Code. There are several levels of access:
1. Operator
2. Level 1
3. Level 2
4. Level 3
Access Code Levels are downwards applicable - for example if a User enters the Level 2 Code, they
have access at the Operator Level and Level 1. The Operator Access Code is changeable as a
parameter in Configuration Mode, which requires Level 1 Access. The default Access Codes are shown
below.
Table 5-1: FHSD700C Detector Access Codes
Access Level Access Code
Operator 0
Level 1 260
Level 2 693
Level 3 Factory Use Only
5.1.1 How to Enter an Access Code
When entering an Access Code, the alternative function LEDs above the ACCEPT and RESET buttons
will be lit, enabling these buttons to be used as UP and DOWN buttons to enter a 3-digit number.
If the UP or DOWN buttons are continually pressed, the 'units' digit on the Status Display will be
activated, then the 'tens' digit, then the 'hundreds' digit. If the button is released, the flashing digit (units,
tens or hundreds) is the one that will change with further use of the UP and DOWN buttons. When the
hundreds digit is correct, wait about five seconds for the flashing digit to move to the tens digit, then set
the tens to the required value. Repeat for the units digit.
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5.2 User Functions
User functions associated with some configuration and control buttons are described in this section. For
more information on setup and configuration, please refer to Setup and Button Functionality on page 18.
Table 5-2: Description of User Functions for the Display Panel
Function Access
Level
Description
ACCEPT
None Acts only on the internal sounder. Acknowledges all current Alarm states. All other
warning mechanisms continue unchanged. Sounder operation change s from
continuous to 1 second ON: 15 seconds OFF. New Alarm events cause the sounder to
revert to continuous operation.
SOUNDER
SILENCE
Operator
Acts only on the internal sounder. The Sounder is switched off until one or more new
Alarm events.
RESET
Operator
Clears all latched Alarms and Faults. Current Alarms or Faults will remai n.
ISOLATE
Operator Used when diagnosing faults, testing new installations etc. All alarm relays are
disabled, so that Alarm conditions will not be reported back to the Host Panel. The
Isolate button toggles the unit between Isolated and Normal operation, as shown by the
Isolated indicator, but see note below.
Note: If the unit is isolated then returned to the Normal, Locked state (by pressing the
MENU button) the Operator will need to re-enter Operator Access Code in order to
cancel the isolated state.
Note: If a power cycle is applied to the detector, the detector will not remain in an
isolated state.
TEST
None Successive presses of the Test button show:
1. Date on the Status Display
2. Time on the Status Display
3. IP address (if the unit is TCP/IP enabled) on the Status Display
4. Subnet net mask (if the unit is TCP/IP based) on the Status Display
5. Media Access Control (MAC) address (if the unit is TCP/IP enabled) on the
Status Display
6. All activated LEDs on the panel and LED segments on the Status Display
7. Normal display
The FHSD700C detector can also be reset remotely by applying 24 VDC to the remote reset input on
the Main I/O PCB (please refer to Section 3.2.1).
Note: When the Operator Access Code is entered (default = 0), the Sounder Silence, Reset and Isolate
user functions are enabled and the unit is placed in the Unlock state, as shown by the flashing
Unlock indicator. To reduce the possibility of leaving the unit in this condition, the system will
indicate a fault condition on the display and to the remote monitoring device via the fault relay. If
the unit is isolated, then returned to the Normal, Locked state (by pressing the Main Menu
button) the Operator will need to re-enter Operator Code in order to cancel the Isolated state. If
any button is not pressed to lock the panel the unit will self-timeout and lock in 5 minutes.
Note: If the unit is set for battery backup and the mains supply fails (or is removed) the displays will
switch off in order to conserve battery power.
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5.3 Main Menu Modes
To enter one of the Main Menu Modes follow these steps:
1. Press MENU
2. Use Function UP & DOWN buttons (SCAN and ISOLATE buttons) to reach required main menu
item
3. Press ENTER (SOUNDER SILENCE button)
4. Use Value UP & DOWN buttons (RESET and ACCEPT buttons) to enter the appropriate Access
Code
5. Press ENTER
Note: Access Code Entry may be aborted by pressing the MENU button.
Note: All of the following settings can be entered using the GE Security configuration software and a
PC. This can reduce the time taken to enter certain values and parameters.
To obtain this software contact GE Security or visit the website www.gesecurity.net.
The following sections show how to enter the Main Menu Modes and what parameters are available in
each of these modes.
5.3.1 FAULTS: Fault List
Minimum Access Level Required: None
This menu item shows a list of the faults that are current in the system.
Use the Function UP & DOWN buttons (Isolate and Scan) to inspect any current fault in the list.
5.3.2 OPERATOR: Operator Mode
Minimum Access Level Required: Operator
This menu item enables the user to specifically enter Operator Mode, and permits the usage of the
Isolate, Sounder Silence and Reset buttons. Once the user has successfully entered the Operator
Access Code, the Unlock LED should activate.
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5.3.3 ENGINEERING: Engineering Mode
Minimum Access Code Required: None
Certain engineering values may be inspected, primarily for diagnostic purposes. Use the UP & DOWN
buttons (Isolate and Scan) to inspect any parameter in the list.
Table 5-3: Engineering Parameters and Values
Parameter Value Description
VERSION *.** Version of Software in the processor module in the Main Unit. The software can be upgraded
using a PC and a special interconnect lead.
BUILD NO *.** Reference to specific software build.
GENERAL
FAULT
*.** Fault list that generates fault number codes.
DETFLOW **.*% Sample flow through the detector. This measurement may be enabled/disabled under
Configuration.
FLOWnn **.*% Measurements of Sample flow rates for each sector. The number will vary depen ding on the
Model Type and number of actual sectors sampled. The flow rates should be normalize d to
100% at installation. High pressure systems measure pressure for each sampled sector. The
tube lengths should be equal.
BATTERY **.* V N/A
OBS/M or
OBSC/FT
*.**% Obscuration value in meters or feet. This is the same as the normal display. To change from
metric to imperial see section 3.4.6.
REFDENS *.**% Reference Density.
MODn 1 to 5 Shows the module types that are fitted. These are read directly from the Modules.
5.3.4 CONFIGURE: Configuration Mode
Minimum Access Code Required: Level 1
The FHSD700C detector uses many configuration parameters, and is shipped with factory default
values. The Configuration Mode allows changes to be made to these parameters. Below is a list of user
definable parameters, and their Factory Default values. The Parameter UP and DOWN buttons (Isolate
and Scan) navigate through the list; the Value UP and DOWN buttons (Accept and Reset) change the
value. The ENTER button (Sounder Silence) saves the new value, and moves to the next parameter.
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Table 5-4: Configuration Mode Parameters and Values
Parameter Range Factory
Default
OPCODE Operator Function Access Code 0 to 999 0
ENDSCTR End Sector (number of sectors used) 1 - default 4, 6, 8 or 15
DENSLOG Log of density change 0.01 to 20.00 0.02
F2LTCH Fire 2 Latch 0 or 1 1
F1LTCH Fire 1 Latch 0 or 1 1
ACTLTCH Action Latch 0 or 1 1
ALTLTCH Alert Latch 0 or 1 1
TRCLTCH Trace Latch 0 or 1 1
FLTLTCH Fault Latch 0 or 1 1
TRCRLY Trace Relay 1 0 or 1 0
REFCOMP Reference Compensation 0 to 5% 2.00%
REFDEL Reference Delay 5 to 60s 15s
FLOWDEL Flow Fault Delay 1 to 60s 5s
FLOWHI Flow High Limit 105 to 200% 120%
FLOWLO Flow Low Limit 0 to 95% 80%
FLOWLOG Log of flow change 0.0 to 200.0 5.0
SETFAN Set Fan Speed 3 to 10 5
STANDBY Battery Charger Enable 0 or 1 0
PWRDEL AC power supply fail delay 1 to 1000s 10s
BUZZER Internal Sounder Enable 0 or 1 1
BEACON Beacon Enable 0 or 1 1
ADDRESS RS485 Address 0 to 30 31 (off)
TESTTIM Time between automatic scans
Note: TESTIM is also used for FHSD700C-15 Flow normalization by
pressing ENTER
0 to 30 mins 20
MIN DWELL Rotary valve dwell time 0 to 60s 0s
GAIN X See description
MOD1 Set Module 1 usage
MOD2 Set Module 2 usage
MOD3 Set Module 3 usage
MOD4 Set Module 4 usage
MOD5 Set Module 5 usage
SC DEL Suppression Control Delay 0 to 120 60
NIGHSTART Night Start time (Hour in 24 format) 12 to 23 12
NIGHSTOP Night Stop time (Hour in 24 format) 0 to 12 12
TRC PRESS Setup for auto Valve Scan 5 to 1000 25
Note: Avoid setting to values already defined for Level 1 or 2 Access Codes.
Note: When Standby is set to 1, the panel display will switch off if the AC mains supply is removed.
Note: To revert all Configuration parameters to their default values go to the LOAD DEFAULTS menu
item and press ENTER (Level 2 Access Code is required). The Unit will restart with default
parameters.
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OPCODE
This is the Operator Access Code (or Access Code Level 1 or 2) that must be entered to enable
ISOLATE, SOUNDER SILENCE and RESET buttons. The default value is 0. It may be changed within
the range 0 to 999, but 260 and 693 should be avoided as these are reserved for Level 1 and 2 access
codes. A zero value removes the need to enter an Access Code.
ENDSCTR
The default value is 4, 6, or 15 depending on the detector type (FHSD724DC, FHSD726DC, or
FHSD7215DC). If fewer sectors are to be sampled, ENDSCTR should be set accordingly and the
unused sample inlets should be capped or, for the FHSD7215DC, looped to one another. Those used
should be a contiguous set beginning from the first inlet. Please refer to Connection of Sampling Tubes
on page 14 for instructions.
DENSL
OG
If there is a change in density greater or equal than this value, an entry in the log is made of the new
value.
TRCLTCH (not on FHSD720C or FHSD721C / FHSD721DC), ALTLTCH, ACTLTCH, F1LTCH,
F2LTCH
Defines whether Alarm events are to be latched. If not latched, the Alarm condition will clear as soon as
the cause disappears. If latched, the system must be reset to clear the Alarms. Note that the ACCEPT
or SOUNDER SILENCE buttons may be used to stop the internal sounder, and the ISOLATE button
may be used to disable all Alarm relays. The default is 1 (Latching).
FLTLTCH
A FAULT condition will exist if any specific fault within the system is detected. It will be accompanied by
closure of the Normally Closed contacts of the FAULT relay, and illumination of the GENERAL FAULT
indicator. If it is made Latching, the relay contacts and indication will remain even after the originating
Fault condition has ceased, and the system must be reset to clear FAULT. The default is 1 (Latching).
TRCRLY (not on FHSD721C / FHSD721DC)
Optionally, the ALERT relay can be re-assigned to activate when the detector goes into TRACE mode.
To do this set to 1. The default is 0. The alert relay will then act as a Trace relay.
REFCOMP, REFDEL
When referencing is used, REFCOMP is the proportion of the Reference Density Value that is used to
back off the Sample Density. The product is subject to a maximum of 0.05% back-off value. It is applied
progressively over time, reaching its final value after the Reference Delay, REFDEL. This is not
applicable to the standard product FHSD720C, FHSD721C / FHSD721DC, FHSD724DC, FHSD726DC,
or FHSD7215DC.
FLOWDEL
Flow Fault Delay. The time period in seconds for which a Flow Fault must be sustained before
registering as a fault. The default is 5 seconds. The range is 1 to 60 seconds.
FLOWHI, FLOWLO
High and Low limits set for Flow Fault. Note that Flow readings are normalized to 100%. All systems
must normalized at the installation stage.
FLOWLOG
If there is a change in flow greater or equal than this value and there is currently a flow fault, an entry in
the log is made of the new value.
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SETFAN
Applicable to Low Pressure systems. The Default Fan Speed is 5 (Useable Range 3 to 10). Because of
the need to re-normalize the flow readings if the fan speed is changed, please note the following:
If the display [SETFAN n] flashes, this is the speed currently set
To Normalise the Flow readings, go to SETFAN press ENTER when the display is flashing (i.e.
the speed is set to current value). Entering a new speed will not automatically initiate a recalibration of flow measurements, and the flow readings may not be normalized. This must be
initiated by returning to SETFAN and pressing ENTER. The Flow Normalisation sequence will last
about six minutes, during which time, the display will report progress. This operation must be
done for new installations, or if the sample tube arrangement has been modified, or if the fan
speed is changed. But note that if calibration has been done before at a particular fan speed
setting, those calibration values will be retrieved and used.
STANDBY
Ensure that this is set to the default of 0.
PWRDEL
N/A.
BUZZER
The internal sounder may be enabled or disabled on a permanent basis. The default is 1 (enabled). The
sounder (if enabled) accompanies all ALARM conditions.
BEACON
The integral Beacon may be enabled or disabled on a permanent basis. The default is 1 (enabled). The
beacon (if enabled) accompanies all ALARM conditions.
ADDRESS
This is the detector's RS485 address. The range is 0 to 30; a value of 31 disables RS485
communications. The default setting is 31 (off). Note that if the display panel is used remotely,
communication to it is by means of this RS485 communications port, and the ADDRESS setting is not
used.
Please note that this is not applicable on the standard product.
TESTTIM
Set in minutes. If no rotary valve movement has been triggered within this time period then an automatic
scan will be initiated (for rotary valve systems only). To normalize flow on a FHSD700C-15 detector,
scroll to the TESTTIM parameter in the Configure menu, and press enter. This should only be carried
out after fitting the microbore pipes (equal in length with a maximum of 50 m per channel).
MIN DWELL
Used for rotary valve movement control. Determines the minimum time in seconds that the valve will
remain stationary between sectors (rotary valve systems only). The default setting of '0' must not be
changed if compliance with EN54-20 and UL is required.
GAIN X
N/A.
MOD1, MOD2, MOD3, MOD4, MOD5
Some module types may be used in different ways. MOD1 to MOD5 sets the usage of these modules.
See under the specific I/O module section.
SC_DEL
N/A.
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FHSD700C Series Product Guide
NIGHSTART, NIGHSTOP
The time in hours, on a 24 hour basis, at which the values change from day to night or back again. The
default value for both is 12, at this value only the day values are applicable.
TRC PRESS (FHSD7215DC only)
Trace Pressure is used as a figure to initiate the valve into a scan routine when the required change in
airflow is detected. This figure is set by monitoring the REL in value with the Rotary valve monitoring
flow in the overall position. This value must be left at the default value of '25' for EN54-20 compliance.
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FHSD700C Series Product Guide
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5.3.5 SECTORS ALMS: Set Sector Day and Night Alarms
Minimum Access Code Required: Level 1
The display will now show DAY VALUES, use Parameter UP & DOWN to change to NIGHT VALUES.
Press ENTER to access the settings for all the sectors.
This function allows the user to set different values for day and night operation. The time of day when
the values change over is also configurable. Values can be set for all sectors or each sector individually.
The FHSD721C / FHSD721DC only has 'all' settings as it has no sectors.
Table 5-5: Sector Alarm Parameters and Values
Parameter Description Range Default
ALL F2 All Fire 2 Alarm Levels 0.01 to 20% obs/m 1.00% obs/m
ALL F1 All Fire 1 Alarm Levels 0.01 to 20% obs/m 0.08% obs/m
ALL ACTION All Action Alarm Levels 0.01 to 20% obs/m 0.06% obs/m
ALL ALERT All Alert Alarm Levels 0.01 to 20% obs/m 0.04% obs/m
Sn FIRE 2 Sector 'n' Fire 2 Level 0.01 to 20% obs/m 1.00% obs/m
Sn FIRE 1 Sector 'n' Fire 1 Level 0.01 to 20% obs/m 0.08% obs/m
Sn ACTION Sector 'n' Action Level 0.01 to 20% obs/m 0.06 % obs/m
Sn ALERT Sector 'n' Alert Level 0.01 to 20% obs/m 0.04% obs/m
TRACE Trace Level 0.01 to 20% obs/m 0.03% obs/m
FINAL SECTOR AS ABOVE
F2DEL Fire 2 Delay 0 to 60 secs 3 secs
F1DEL Fire 1 Delay 0 to 60 secs 3 secs
ACTDEL Action Delay 0 to 60 secs 3 secs
ALTDEL Alert Delay 0 to 60 secs 3 secs
TRCDEL Trace Delay 0 to 60 secs 3 secs
Note: Delay settings are only applicable to FHSD720C and FHSD721C / FHSD721DC systems. Trace
delay can be set on FHSD724DC to FHSD7215DC systems.
By default, NIGHT VALUES are set to the same as DAY VALUES. DELAYS are automatically the same
for both DAY and NIGHT.
ALL ALERT, ALL ACTION, ALL F1, ALL F2
These are the obscuration levels corresponding to the respective alarm events. Changes made should
preserve their progressive relationship. The values apply equally to OVERALL sampling and to TRACE
sampling.
TRACE
The obscuration level (in OVERALL sampling) which will cause the detector to begin Sector scanning.
TRCDEL, ALTDEL, ACTDEL, F1DEL, F2DEL
The time period for which the corresponding obscuration levels must be sustained before triggering an
alarm. Prevents spurious Alarm events.
Please note that the Delay function is only available on the FHSD720C and FHSD721C / FHSD721DC
model.
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FHSD700C Series Product Guide
5.3.6 TIME DATE: Set Time and Date
Minimum Access Code Required: Level 1
Figure 5-2: Display for setting time and date.
After accessing this menu item, the display will now show the date in the format 'day - date - month year' (please see Figure 5-2), with the date flashing. To change the time and date:
1. Press UP & DOWN buttons to change the date.
2. Press ENTER to update the date and move to the next step (month); month will flash.
3. Press UP & DOWN buttons to change the month.
4. Press ENTER to update the month and move to the next step (year).
5. Press UP & DOWN buttons to change the year.
6. Press ENTER to update the year.
Continue as above to change the time. When the ENTER button is pressed; the flashing element will
progress from date through to seconds, with the display format changing from date to time
appropriately. The day of the week is determined from the date, month and year.
The Parameter UP & DOWN buttons will switch the display between date and time.
Return to the Main Menu by pressing MENU.
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FHSD700C Series Product Guide
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5.3.7 WEB: Set IP Address and Mask
Minimum Access Code Required: Level 1
Figure 5-3: IP Address and IP Mask display - default values shown.
The display will now show the text IP ADDRESS. Press UP button to show the IP Address with the first
field flashing:
1. Use Value UP & DOWN buttons to set the first field.
2. Press ENTER to update and move to the next field.
3. Repeat the two steps for all fields.
Once the IP Address has been updated, the display will now show IP MASK. Press UP to show the
actual IP MASK with first field flashing:
1. Use Value UP & DOWN buttons to set the first field.
2. Press ENTER to update and move to the next field.
3. Repeat the two steps for all fields.
Return to the Main Menu by pressing MENU.
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FHSD700C Series Product Guide
5.3.8 SETUP: Setup Menu
Minimum Access Code Required: Level 2
Once the Setup Mode is accessed, please follow this procedure to change a parameter:
1. Press Parameter UP & DOWN buttons to reach required SETUP item.
2. Press ENTER.
3. Press Value UP & DOWN buttons to update the item.
4. Press ENTER to update and move to next parameter. If the value is left unchanged, ENTER will
have no effect.
Press MENU to get back to the Main Menu. Press MENU again to get back to Normal display.
The Setup menu has the following items.
Table 5-6: Setup Menu Parameters and Values
Parameter Value Defaults Description
HI RESLTN 0, 1, 2
or 3
0 Enables the Status Display to show standard resolution (0) or higher Resolution
(1, 2 or 3) for obscuration (switches between a resolution of 0.01 to 0.00001).
Note: It is highly recommended to leave this value at 0. Changing the value from
0 will cause some configuration values to change. Connection to GE Security
fire configuration and management software will automatically change this value
back to 0.
OBSC/FT 0 or 1 0 Set to 1 to display smoke valve in % obs/ft. Normally % obs/m.
REMPANEL 0 or 1 0 Enables remote panel operation. A communications fault will be displayed if this
is enabled without a remote display connected.
REMPOD 0 or 1 0 Set to 1 if a Remote Sensing Unit is connected.
Note: This option is not available for standard FHSD700C devices.
DETFLOW 0 or 1 1 In addition to individual sector flow monitoring, detector flow monitoring is also
incorporated.
Set to 1 to enable.
CCODE Country Code See Table 5-7. Changes metric/imperial units.
RES-ISOL 0 or 1 1 Set to 1 to reset system with 24 V on reset line.
Set to 0 to isolate system when 24 V is applied for 8 seconds or more.
MOD1 to 5 List of available I/O
modules
All I/O modules fitted at build will have this information entered. If additional I/O
modules are installed, their type must be entered here.
The FHSD700C detector can operate in a number of different languages. To change the language, the
correct country code (CCODE) must be entered. The software can also be made to swap from metric to
imperial measurements by entering 1 for the United States country code.
Table 5-7: Country Codes for the FHSD700C Series
Language Code
English (default) 44
United States (English) 1
French 33
Spanish 34
Portuguese 35
Italian 39
German 49
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FHSD700C Series Product Guide
GE Security
5.3.9 LASER CAL: Laser Calibration
Minimum Access Code Required: Level 3
This menu option is only available for factory use to calibrate the laser.
5.3.10 LOAD DEFAULTS: Load Defaults
Minimum Access Code Required: Level 2
This menu option will enable the user to reload all factory defaults for all configuration parameters under
the Configuration and Sector Alarms menus. It is recommended that the system configuration is saved
prior to applying this menu option.
5.3.11 MAINTENANCE: Maintenance Mode
Minimum Access Code Required: None
Use the Parameter UP & DOWN buttons (Isolate and Scan) to inspect any item in the maintenance list.
Table 5-8: Maintenance Parameters
Parameter Description
LASERIN Current smoke value for the laser detector output
MOD1 IN Identification number of Module 1
MOD2 IN Identification number of Module 2
MOD3 IN Identification number of Module 3
MOD4 IN Identification number of Module 4
MOD5 IN Identification number of Module 5
5.3.12 TEST OUTPUTS: Testing Mode
Minimum Access Code Required: Level 2
This menu item enables the user to manually increase or decrease smoke levels for the detector in
order to simulate a real fire event. This enables the user to test the responses of the detector to a fire
event. Please note that all alarms and relays will operate as if the system is reacting to a real fire event.
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FHSD700C Series Product Guide
5.4 Input-Output Modules
FHSD700C detectors have 5 relays fitted as standard. The I/O functionality may be extended by adding
I/O modules. These plug onto the standard I/O module in a stackable chain of up to 5 (3 positions for
FHSD720C). They are recognized by the processor as Modules 1 to 5 going from left to right. When
installing new modules, the type must be entered in the Setup menu in order to be correctly recognized.
5.4.1 4-Channel Relay Module
There are three steps to configuring a relay module:
1. After installing the relay module check that MOD1 in the Engineering menu has now changed to
1. (This is different for other types of cards)
2. In Setup menu, change MOD1 to 1 (if using a different card use the number that appears in the
Engineering menu).
3. In the Configuration menu set MOD1 to a number from 1 to 6 representing the triggering event
where:
1 = Alert
2 = Action
3 = Fire1
4 = Fire2
5 = Flow fault
6 = General Fault
All four relays on the card will now activate for this event. The following table shows how relay cards will
be setup when using one or more modules.
Table 5-9: Relay Module Set-up Table
Relay Module
1 2 3 4
Relay Relay Relay Relay
1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
Unit Config Sector Sector Sector Sector
Alert 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
Action 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
Fire 1 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
Fire 2 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
FHSD724DC
Flow 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
Alert 1 2 3 4 5 6 - - 1 2 3 4 5 6 - Action 1 2 3 4 5 6 - - 1 2 3 4 5 6 - Fire 1 1 2 3 4 5 6 - - 1 2 3 4 5 6 - Fire 2 1 2 3 4 5 6 - - 1 2 3 4 5 6 - -
FHSD726DC
Flow 1 2 3 4 5 6 - - 1 2 3 4 5 6 - Alert 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Action 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Fire 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Fire 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 -
FHSD7215DC
Flow 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 -
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FHSD700C Series Product Guide
GE Security
Figure 5-4: Relay Module
Single pole double throw (SDPT) contacts are used in the relay modules with a rating of 2 A at 24 VDC.
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FHSD700C Series Product Guide
6 Maintenance
Note: Routine tests should be carried out by qualified personnel.
The following steps should be carried out DAILY in the case of a free standing system (i.e. where its
status is NOT monitored by a main panel or monitoring station), or WEEKLY when the system is
monitored.
1. Check control panel for fault indications etc.
2. Test the function of control panel LEDs (Not FHSD720C or 'Blind' unit)
3. Record results in system log book & report any abnormal results
The following page gives information on the servicing tests to be carried out on the detector. Servicing
must only be carried out by trained or authorized personnel.
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6.1 Servicing
Note: Servicing should only be carried out by trained service contractors.
Ensure that all relevant site personnel & supervising authorities have been informed and, where
necessary, the system has been isolated from the main building alarm system before undertaking any
actions which may result in Alarm and/or Trouble/Fault conditions.
Servicing Interval (Months) > Service Description
6 12 18 24 30 36 42 48
Notes
Check control panel for faults and test
LEDs
X X X X X X X X Not FHSD720C or 'Blind' unit
Check data logs & record main events
(Faults/Alarms etc.)
X X X X X X X X
Check flow readings and record values for
each channel
X X X X X X X X
Physically inspect installation (Pipework &
Cabling)
X X X X X X X X
Inspect fuses and ensure correct ratings X X X X X X X X
Replace detector filter elements & clean
chamber
*
X X X X X X X X
Replace internal filters* X X X X X X X X
Inspect and clean/replace in-line & end of
line filters
*
X X X X X X X X
Replace Gaswitch Seals (Exchange unit) X X FHSD724DC, FHSD726DC, &
FHSD7215DC ONLY
Replace pump vanes/rotor (Exchange unit) X X FHSD7215DC ONLY
Replace exhaust filter/silencer &
associated tubing
X X FHSD7215DC ONLY
Normalise flow (due to replacement of filter
elements)
X X X X X X X X
Record flow values for each channel X X X X X X X X
Test optional accessories etc. X X X X X X X X e.g. Remote Display, Relays etc.
Carry out smoke test to BS6266 A.3 on
single point
X X X X
Carry out smoke test to BS6266 A.3 on all
channels
X X X X
Record results in system log book X X X X X X X X
Complete servicing certificate and issue to
user
X X X X X X X X
* Cleaning & filter change intervals are dependant on environmental conditions. The above recomm endations are
based on typical office environments and the frequency may need to be increased for harsher environment s.
GE Security
FHSD700C Series Product Guide
Appendix A: Display Panel Navigation
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Appendix B: Communications Guide
FHSD700C detectors can connect to a PC with GE Security Configuration and Management software
via Ethernet (optional), through a RS232 direct serial connection or with RS485 via a RS485/RS232
converter.
RS485 also provides the option of connecting up to 30 detectors together in a multidrop RS485
network. Some guidelines on installing RS485 connections are shown in the following sections.
B.1 Installation Guide for RS485 Equipment
Communications to RS485 standard are designed to reject a degree of interference, but care must still
be taken when designing and implementing the installation to minimize the level of interference imposed
on the equipment. To prevent damage due to tropical storms and other sources of large external
currents and voltages, additional surge absorbing components may be required as part of the
installation.
It is the responsibility of the installer to provide a suitable environment to prevent damage to the
equipment, and to reduce external interference to a level within which the equipment can operate as
defined by its specification. The provision of warning, caution and danger information to the end user is
within the task of the installation provider, and not the instrument manufacturer.
The purpose of the guide is to assist the installation provider, but it is not intended to be a full and
complete set of instructions. The installer shall be more qualified to take the relevant technical, safety
and legal decisions.
B.1.1 Electrical Supply
The supply voltage and frequency must be maintained within the equipment requirement specification.
Any breaks in supply or reductions in voltage below the specified minimum will result in equipment
shutdown. When this problem exists, an uninterruptible power supply should be used to supply the
equipment.
If the electrical supply is known, or suspected, to be subject to noise pulses produced by motors,
fluorescent lamps, storms and lightning, or other causes then mains filtering must be fitted to reduce the
peak amplitude to less than twice the nominal RMS voltage.
The equipment metal case must be connected to an earth. To protect personnel this earth should be
free from voltages greater than 10 V peak.
It is recommended that galvanically isolated power supplies (in accordance with UL1481) are used
since the RS485 inputs/outputs are not usually isolated from the equipment internal zero volt line.
The RS232/RS485 converter should also be galvanically isolated.
B.1.2 Cable Material
RS485 communication is by current switching between a pair of wires at data rates of up to 250 kbps.
The cable construction is specified as:
Twisted pair of nominal 10 turns per meter or yard
40 pF to 60 pF meter between conductors
100 to 120 characteristic impedance
Maximum signal attenuation over total length 16 dB at 0.25 MHz
Overall screen (to be connected at one end only)
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FHSD700C Series Product Guide
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The cable materials are not specified, but in order to meet the low capacity specification
polyethylene/polyolefin/polypropylene is used as the insulator, with PVC/flame retardant PVC as the
overall sheath. Other materials can be used if the impedance and capacity requirements are met.
Installation requirements may add other features, such as fire resistance, flame retardance, UL
approval, low smoke and fume etc.
Also remember to check that the electrical characteristics of the cable used is appropriate for the wiring
distance required for the installation.
Common Mode
The RS485 inputs/outputs are not usually isolated from the equipment internal 0 V line. The maximum
potential difference between the 0 V lines of all instruments connected to an RS485 communication
cable is limited by the specification to between -7 V and +12 V. If this limit is exceeded, communications
will be lost.
Interference Induced onto Cable
Twisted pair construction and cable screens do not completely shield the communication link from
external electromagnetic interference (EMI). Good practice should be followed when installing
communication cables to eliminate EMI.
RS485 cables should not be installed in the same duct/tray as power cables, or switching cables. When
RS485 cables cross power or switching cables, this should be at right angles. RS485 should not be
installed in areas of high interference, where this is not possible, then electro-magnetic screening must
be adopted for example, metal conduit or cable tray could be used.
The total length of the cable run must not exceed 1200 m (4000 ft). It is only possible to exceed this
length by use of repeater units to re-generate the signal.
Terminating Cables
It is imperative that the cable structure is maintained to a position as close as possible to the
termination. This is to maintain the interference protection and reduce losses due to changes in cable
impedance.
The outer sheath and screen must not be cut-back for a distance of more than 100 mm (4 in.) from the
termination.
The twisted pair must not be untwisted for a distance of more than 25 mm (1 in.) from the termination.
The recommended cable manufactured to RS485 specifications is: BELDEN 9841/9842 (or equivalent)
- 24 AWG, polyethylene insulation, PVC sheath, UL style number 2919.
9841 Single twisted pair: communications data only
9842 Double twisted pair: 1 pair for communications data, 1 pair for 24 V supply.
Please ensure that electrical characteristics are sufficient for the distance of connection between
devices.
FHSD700C Series Product Guide
GE Security
Appendix C: Laser Chamber Safety
GE Security FHSD700C detector laser chambers incorporate a 658 nm laser with an average power
less than 10mW and are located on the underside of the detector when mounted upright on a wall. The
laser chamber is identified by two safety labels shown in the following diagrams.
Figure C-1: Laser chamber safety labels
Warning: The laser emits visible light and can be hazardous if viewed with the naked eye. Under no
circumstances should the detector chamber be opened except by qualified personnel.
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