SMS SenTRI SEN-720 Instruction manual

These instructions are for the SenTRI Sensor product range. A
SenTRI Sensor product integrates smoke and heat detection
with electronic sounder and LED flasher (Strobe) in one
assembly.
Product range
All LPCB approved Sensor STATES are
listed in the Description and
commissioning information
These products are not visual alarm devices and do not
meet EN 54-23.
Part number Description Symbol
SEN-720 Heat Sensor H
SEN-780 Heat Sensor plus
Sounder
HS
SEN-780-ST Heat Sensor plus
Sounder & Strobe
HSSt
SEN-715 # Optical Sensor O
SEN-710 Optical & Heat Sensor OH
SEN-770 Optical & Heat Sensor
plus Sounder
OHS
SEN-770-ST Optical & Heat Sensor
plus Sounder & Strobe
OHSSt
# This 'Optical' Sensor is also used in the Duct sensor.
Associated products
S4-700
(previously SEN-700)
Base
SEN-FLUSH Semi-Flush fixing kit
805589 Sensor dust cover
(pack of 50)
805580 Removal tool kit
SEN-COVER-REMOVER Dust cover remover tool
(spare adaptor)
805576 Label plate (pack of 50)
General specification
Operating voltage 35V - 41V
Weight 110g
with base - 170g
SEN-720 only: 88g
(with base - 148g)
Dimensions in mm 117 diameter by
49.6 height
With base the height
increases to 63.8
IP rating IP30
IP20 when mounted on
a metal back box
Enclosure ABS
Colour RAL 9010
Approval LPCB approved
Storage temperature -20°Cto+70°C
Ambient operating
temperature
-10°Cto+50°C
Relative humidity 95% non condensing
(+5°C to +45°C)
Heat (H) Standard EN54 : Part 5 :2002
Optical (O) Standard EN54 : Part 7 : 2002
Sounder (S) Standard EN54 : Part 3 : 2002
Multi sensor Standard CEA 4021 : 2003-07
EN54-18 : 2005 - Input/ output devices
EN54-17 : 2005
Short-circuit
isolator
(section 4.8)
data:
Vmax 42V IC max 0.4A
Vnom 40V IS max 1A
Vmin 24V IL max 20mA
VSO max 16V ZC max 0.16W
VSO min 8V
Information on minimum sound output levels to include polar
dispersion is covered in a technical note TECH7018.033,
available on request from manufacturer.
4188-897 issue 3_12/13_SenTRI Sensor Data_PART-1 1
Data and installation
Sensor, Sounder & Strobe
range

Siting
ASensor, Sounder & Strobe device plugs into a dedicated Base
that is installed in the protected premises. The Bases should be
sited in locations as defined by the project plans and by
BS5839 : Part 1 : 2002.
Do's and Don't
&
DO NOT locate smoke detectors where products of
combustion may be present such as in kitchens,
garages, furnace rooms, welding shops etc.
DO NOT locate heat detectors above boilers or
heaters or where the temperature is normally very
high or liable to sudden fluctuations.
DO NOT locate smoke or heat detectors: -
• In dusty or dirty environment.
• Near heating or air-conditioning grilles
• Outdoors in stables, sheds etc.
• In excessively damp areas
• In dead air spaces at the junctions of
ceilings and walls
• At ceiling locations where a ‘thermal
barrier' may exist.
Follow recommendations detailed in section 22 of
BS5839 : Part 1 : 2002
Metal back box
A metal back box must be used for base or semi-flush mounting.
The earth continuity must be maintained throughout the whole
loop circuit. The earth must be securely connected to the back
box.
In - Out wiring to Sensor bases
Programmable input/output
All SenTRI devices have terminals that can be configured as a
monitored input or unmonitored output. The factory setting of the
programmable input / output is an unmonitored output to drive an
external repeat LED without a series resistor.
There is a maximum cable limit of 15 metres from the Sensor
base to the I/O Unit.
The input can accept signals such as fire, non fire or fault, these
are configured during commissioning. As a fire input it is possible
to connect a conventional Manual Call Point (non UK application
only) with a series resistor of value 470 Ohms coupled with an
end-of-line 10Kohms resistor. In this case the fire input is fully
monitored for open or short circuit faults.
The input can be setup as a non-fire or fault input using a similar
arrangement, with series and parallel resistors as shown. It is
possible for such an input to trigger a command that is
configured to action an output elsewhere in the system to control
plant equipment such as the ventilation system.
Data and installation Sensor, Sounder & Strobe
2 4188-897 issue 3_12/13_SenTRI Sensor Data_PART-1
LOOP CABLE
STANDARD 60mm METAL BACK BOX
CABLE GLAND
LOOP CABLE
SenTri BASE
CEILING TILE
2 SCREWS TO SECURE
BASE TO METAL BACK BOX
CROSS SECTION
OF CEILING TILE
EM2
OUT5
IN4 C3
EM2
OUT5
IN4 C3
L1 0V
L2
L1
0V
L2
EM2
OUT5
IN4 C3
L1 0V
L2
+
-
+-
Unmonitored LED output
0V
+-
0V
Remote LED unit
13449-01 or SEN-LED
EM2
OUT5
IN4 C3
L1 0V
L2
470 W
10 KW

Tools
An extractor tool allows removal and fitting of the Sensor device
head into the base. By fitting a screw-on adaptor, the tool can be
used to remove the sensor dust cover.
To remove the SenTRI device
Fit the tool onto the SenTRI device. Turn SenTRI device
anticlockwise until it stops and then remove the SenTRI device
from the base.
To fit a SenTRI device
Fit the SenTRI device on to the tool. Offer SenTRI device to base
and rotate clockwise until it moves upwards on to the base and
rotate it again until it clicks and goes no further, the lines on the
base and SenTRI device will align.
To fit the dust cover using tool
Place the dust cover onto the tool inside the cradle. Offer the
cover to the SenTRI device, locate and push to fit it onto the
assembly. Withdraw the tool when the dust cover is in place.
To remove the dust cover using tool
A dust cover remover tool must be fitted to the main tool to
extract the dust cover. Press the pad of the dust cover remover
tool onto the dust cover, this creates an air tight grip, to allow the
cover to be pulled off from the SenTRI device.
4188-897 issue 3_12/13_SenTRI Sensor Data_PART-1 3
Sensor, Sounder & Strobe Data and installation
SenTri Base
SenTri device
Tool
Tool
Dust cover
SenTri device
Tool
Tool
Dust cover
remover tool
Dust cover

SenTRI device
Semi-flush fixing kit
(S4-FLUSH)
A SenTRI device can be semi-flush mounted to a ceiling tile to an
approximate depth of 20mm, which is slightly deeper than the
base assembly. To semi-flush mount a special housing must be
used, which consists of a main assembly and a trim ring.
"There is an enhanced volume output of sound
from a flush mounted SenTRI device.
Technical data
Weight 164g with trim ring
Dimensions 174mm diameter by 50mm depth
Enclosure ABS
Colour RAL 9010
Storage Temperature -20°Cto+70°C
Ambient temperature -10°Cto+50°C
Relative Humidity 95% non condensing
(+5 to +45°C)
Data and installation Sensor, Sounder & Strobe
Gent by Honeywell reserves the right to revise this publication from time to time and make changes to the content hereof without
obligation to notify any person of such revisions of changes.
Hamilton Industrial Park, Waterside Road, Leicester LE5 1TN, UK Website: www.smsfire.co.uk
Telephone [phone] Technical support: www.smstoolbox.co.uk Fax (UK): [phone]
4 4188-897 issue 3_12/13_SenTRI Sensor Data_PART-1
At the end of their useful life, the packaging,
product and batteries should be disposed of
via a suitable recycling centre and in
accordance with national or local legislation.
Do not dispose of with your normal household waste.
Do not burn.
WEEE Directive:
At the end of their useful life, the packaging,
product and batteries should be
disposed of via a suitable recycling centre.
SenTri Device
Trim ring
Cross section
of Ceiling Tile
Flush shroud
SenTri Base
Do not over tighten the clamping
screws as this will cause the
clamps to cut into the ceiling tile.
Metal back box
Cut a 140mm
diameter hole in the
ceiling tile.
(
)
If required use a Bi-Metal Holesaw
140mm or 146mm, from
www.shop4tools.co.uk
Insert the flush shroud
assembly into the hole
in the ceiling tile.
Hold the flush shroud
to the ceiling tile and tighten
the three screws to splay the
clamps to secure the shroud to the tile.
Locate the SenTri Base into
the flush shroud, such that the
two locating pillars on the
shroud feeds through the two
elongated holes on the Base.
Push the Base into the shroud
until the Base click locks into
the shroud.
Offer the trim ring to the shroud
and slowly rotate ring clockwise until it
clicks and goes no further. This will
lock the ring in position.
Fit the metal box onto the back
of the flush shroud using the
appropriate fixing screws to secure
the box to the flush shroud.
Offer the Sentri device to the Sentri
Base and rotate the SenTri device
clockwise until it moves upwards into
Base, and then rotate the device
again until it clicks and goes no further.
Make the cable connections.
Clamp
SMS by Honeywell (Novar Systems Limited)
Manufactured by: Honeywell Life Safety Systems,
140 Waterside Road, Hamilton Industrial Park,
Leicester, LE5 1TN, United Kingdom
13
DoP Product No.
018-CPR-2013 SEN-710
018-CPR-2013 SEN-715
018-CPR-2013 SEN-720
018-CPR-2013 SEN-770
018-CPR-2013 SEN-770-ST
019-CPR-2013 SEN-780
019-CPR-2013 SEN-780-ST
EN54-3:2001, A1: 2002, A2:2006, EN54-5:2002,A1:2002,
EN54-7:2000, A1:2002, A2:2006, EN54-17:2005, EN54-18:2005
SEN-710 (EN54-5, 7, 17 & 18)
SEN-715 (EN54-7, 17 & 18)
SEN-720 (EN54-5, 17 & 18)
SEN-770 (EN54-3, 5, 7,17 & 18)
SEN-770-ST (EN54-3, 5, 7, 17 & 18)
SEN-780 (EN54-3, 5, 17 & 18)
SEN-780-ST (EN54-3, 5, 17 & 18)
Intended for use in fire detection and fire alarm systems
in and around buildings
Refer to DOP 018-CPR-2013 and 019-CPR-2013 for level or class of
performance declared, for details see website www.smsfire.co.uk
0832

Sensor Sounder Strobe
device
Base
The base has terminals for external cables to allow it to be
electrically connected to the panel loop circuit and to the
monitored input or output circuit. Any Sensor, Sounder &
Strobe device can be plugged into a SenTRI base.
Base labels
An optional label (Part No: 805576) can be fitted to the base.
The label can be marked up with device location information.
Indicators
A Sensor Sounder Strobe device has a red LED to give an
indication in the event of a fire. The LED can be configured to
flash periodically, as an 'in operation' confirmation, this
indication is given system wide at all Sensor, Sounder & Strobe
devices.
Dust Cover
A dust cover is supplied with each Sensor, Sounder & Strobe
device, to prevent dust from building work contaminating the
sensor. The cover is removed prior to the commissioning of the
fire alarm system.
4188-897 issue 3_12/13_SenTRI Sensor Data_PART-2 1
Description and Commissioning information
Sensor, Sounder & Strobe
range
Baffle ring
Black - Sensor only
White - with Sounder
Dust cover
for head
Light-pipe / Cap
Optical chamber
and sounder horn
assembly
Insect mesh
assembly
PCB cover
Lightpipes
Strobe (Flasher)
assembly
Outer housing
Base
PCB
Black ring - Heat only
Base label
(optional)

Monitoring
Under normal conditions the Sensor, Sounder & Strobe devices
are monitored regularly and the data is used to create a
background performance record. When there is a potential event,
the Sensor, Sounder & Strobe device will flag the control panel
for attention. The control panel will take further readings from the
device and compare all the measurements with patterns and
rules to determine if it is a fire event.
Device functionality
All Sensor, Sounder & Strobe devices are monitored periodically
to check if they are working correctly, an indication of a fault is
given if there is a failure. For example the infrared signals
through the optical chamber is regularly checked, the thermistor
is checked for failure. The strobe and sounder circuits are
monitored for failure.
Heat sensor (H)
The heat sensing is provided by a thermistor. The temperature at
which the device goes into fire is defined by the configuration
settings in the control panel. The control panel also calculates
any rate of rise elements required in the fire decision.
Optical sensors
Single Optical Sensor
The optical sensing is performed in the optical chamber using
transmitting LED 1 and an infrared receiver. Measurements are
taken at regular intervals. The control panel uses these readings
to detect the presence of smoke.
Bell tone
The bell tone function is stored on a flash memory chip within the
assembly of Sensor, Sounder & Strobe device .
Message 1 Bell tone
Sounder (S)
The sounder function in a Sensor, Sounder & Strobe device is
designed to meet the requirement of EN54 : Part 3. The EN54 :
Part 3 average output from the sounder is 85dBA at 1m or
75dBA at 3m at a bedhead, making it suitable for installation in
hotel bedrooms. The sounder can operate a turbo mode if
configured during commissioning to provide further 3dB output.
The sound outputs are based on the settings of the FABs and
SABs at the panel that gives changing levels over 2 seconds
duration in 8 time slots. The standard outputs are synchronised
with the S3devices installed in the same system.
A piezo disk within a Sensor, Sounder & Strobe device assembly
outputs the sound via a horn, which is constructed in the
chamber moulding. The volume of the sound output can be
individually set at the device, note that the sound level should not
be set lower than 65dBA at 1m for standards compliance. The
system prevents adjustment of volume down to zero. Another
feature that can be configured is the soft start that ramps the
sound volume gradually to the maximum level set at the device.
The Sensor, Sounder & Strobe device will have a white baffle to
identify it as having Sound functionality.
"The Sound Pressure Level at 90°will far
exceed the more useful average Sound Pressure Level
quoted.
Strobe (St)
The Strobe utilises a high-power red LED that receives its power
from a super capacitor in the Sensor, Sounder & Strobe device
assembly. The high light output from the LED is made possible
by the low impedance of the capacitor. When compared with the
conventional Xenon flasher the Sensor, Sounder & Strobe
device, the strobe outputs a lower level of light over longer
duration to achieve the same intensity. The strobe is designed for
installation on a ceiling and provides a wide viewing angle to
allow the light to be seen all around. As factory set the strobe
provides a pulsed output every 2s with signal 1, 1 second with
signal 2 and 1 second with signal 3, however the operation of the
strobe with the signals 1, 2 and 3 can be changed at the
commissioning stage. The strobe is synchronised with any
S-Cubed strobe installed in the same system.
The Disability Act 1995 recommends visual alarms, like the
Strobe when installed in the protected premises to warn
occupants who are hard of hearing.
A metal back box must be used for surface and semi-flush
mounting and earth continuity must be maintained throughout the
whole loop. The earth must be securely connected to the metal
back box.
Description & Commissioning Sensor, Sounder & Strobe
2 4188-897 issue 3_12/13_SenTRI Sensor Data_PART-2
Heat Sensor
Transmitter
LED1
Receiver
Optical Chamber
Flasher LED

Compatibility
At the time of releasing this data sheet the Sensor, Sounder & Strobe devices were compatible for installation on the loop circuits of
fire alarm system based on panels having the following cards:
³mean - equal to or greater than EN panels
Senator
Advance
SENTRI2
panel
SENTRI4
panel
Card -> MCC MCB MCC LPC
Sentri ³4.30 ³4.37 ³4.37 ³4.30
Sentri
supports SEN-710
³4.30 ³4.37 ³4.37 ³4.30
Sentri
supports STATES2&4Optical
³4.37 ³4.37 ³4.37 ³4.35
Sentri
supports STATE 7 heat
³4.47 ³4.47 ³4.47 ³4.45
How to check card software version
The Master Control Board MCB is always Card 0.
There can be up to 2 loop cards installed in a Senator Advance Panel and SENTRI2 Panel. The SENTRI 4
Panel have up to 4 loops cards 1 to 4.
a. Press the MENU ON/OFF button.
b. Press the F3 button to select [Info].
c. Press the F4 button to select <etc> until [Status] appears on the display.
d. Press the F2 button to select [Status].
e. Press the F3 button to select [Card].
f. Enter the Card number: For MCC/MCB this is card 0 and for the Loop processor card LPC this can be
card 1,2,3 or 4 dependent on panel type.
g. Press the F2 button to select [Enter]. Notice the selected card status is displayed to include the
software version number.
4188-897 issue 3_12/13_SenTRI Sensor Data_PART-2 3
Sensor, Sounder & Strobe Description & Commissioning

Sensor, Sounder & Strobe device STATES
The STATE in which a Sensor device operate can be changed from the default factory set STATE to another STATE during
commissioning. The environment in which a Sensor, Sounder & Strobe device is installed will determine what STATE is used.
#- factory default settings
Device
LPCB
approved
STATES
Meets ~EN54 : Part 5 :2002
*EN54 : Part 5 :2002
Heat sensor - SEN-720
(With Sounder) SEN-780
(With Strobe) SEN-780-ST
STATE 0 #Class A1 heat *
STATE 5 Class B heat *
Optical & Heat sensor variant -
SEN-710
(With Sounder) SEN-770
(With Sounder and Strobe) SEN-770-ST
STATE 0 # Medium optical smoke ~ / Class A1 heat*
Optical sensor - SEN-715 STATE 0 # Medium optical smoke
All SenTRI sensor sounder devices meet EN54-17:2005, Short-circuit Isolators and EN54-18:2005, Input/Output devices for use on
the transmission path of fire detection and alarm systems.
Heat sensor STATES
STATE Definition / Class Application in / Suitable for:
Sensitivity
a-high- to-e-none
STATE 0#Class A1 heat Area having high levels of smoke, dust or steam. a
STATE 13 Class A2 heat Area where there is moderate temperature
changes plus dust, smoke or steam present.
b
STATE 7 Class A2S heat Area where fixed temperature operation is
required, but is totally unaffected by transient
temperature variations.
c
STATE 5 High temperature Class B heat Area having high ambient temperature plus dust,
smoke or steam present.
d
STATE 6 High temperature Class BS heat -
with no rate of rise component
Area where there is rapid temperature changes
plus dust, smoke or steam present
e
STATE 15 No detection f
Optical sensor STATES
STATE Definition / Class Application in / Suitable for:
Sensitivity
a-high- to-f-none
STATE 3 High sensitivity optical Clean area or environment, where early
detection is required
a
STATE 4 Medium sensitivity with no spike
protection
General area as STATE 0 with less immunity to
steam and dust to facilitate witness test
b
STATE 0#Medium sensitivity optical General area c
STATE 8 Delayed medium sensitivity optical General area with transient steam, dust or
smoke present
d
STATE 2 Low sensitivity optical Area with moderate dust, smoke or steam
present
e
STATE 15 No detection f
Description & Commissioning Sensor, Sounder & Strobe
4 4188-897 issue 3_12/13_SenTRI Sensor Data_PART-2

Optical & Heat sensor STATES
STATE Definition / Class Application in / Suitable for:
Sensitivity
a-high- to-j-none
STATE 3 High sensitivity optical,
Class A1 heat
Clean area or environment, where early detection
is required
a
STATE 4 Medium sensitivity with no
optical spike protection, Class
A1 heat
General area as STATE 0 with less immunity to
steam and dust for ease of testing using artificial
smoke in normal operating mode, when test /
commissioning mode is not active
b
STATE 0#Medium sensitivity optical,
Class A1 heat
General area c
STATE 8 Delayed medium sensitivity
optical, Class A1 heat
General application in area with transient steam,
dust or smoke present
d
STATE 7 Medium sensitivity optical,
Class A2S heat
General application in area with low dust, smoke
or steam present, for fixed temperature operation
that is totally unaffected by transient temperature
variation
e
STATE 5 Medium sensitivity optical,
Class B heat
Area having high ambient temperature with low
dust, smoke or steam present
f
STATE 2 Low sensitivity optical,
Class A1 heat
Areas with moderate dust, smoke or heat during
working hours when used with timing function
g
STATE 11 Low sensitivity optical,
Class B heat
Area having high ambient temperature, plus
where moderate dust, smoke or steam present
h
STATE 6 Low sensitivity optical,
Class BS heat
Area having high ambient temperature that
changes, plus moderate dust, smoke or steam
present
I
STATE 12 Class A1 heat only Area where smoke, dust or steam occurs at times j
STATE 15 No detection k
# - factory default settings
4188-897 issue 3_12/13_SenTRI Sensor Data_PART-2 5
Sensor, Sounder & Strobe Description & Commissioning

Sensor, Sounder & Strobe device Status
How to view Sensor, Sounder & Strobe device Status
To view the status of a Sensor, Sounder & Strobe device following the allocation of the loop circuit on which it is
installed.
a. Press Menu On/Off button.
b. Select [Info], momentarily press <etc> to select [Status]
c. Select [Device] and enter a device number
d. Select [Loop] and enter the loop number and then [Enter] to view device status information.
Part No Product Digital I/O Analogue Channels
SEN-720 Heat Sensor ...O2
SEN-780-ST Heat Sensor plus Sounder & Strobe OOOO2,5
SEN-780 Heat Sensor plus Sounder . OOO2,5
SEN-715 Optical Sensor ...O1
SEN-710 Optical & Heat Sensor ...O1,2
SEN-770 Optical & Heat Sensor plus Sounder . O O O 1,2,5
SEN-770-ST Optical & Heat Sensor plus Sounder Strobe OOOO1,2,5
+ Monitored input 6
+ Monitored output 6
. - Unconnected
O - Output
- Don't Care
Analogue Channel 1 is forward scatter optical smoke sensor
Analogue Channel 2 is heat sensor
Analogue Channel 3 is not applicable
Analogue Channel 4 is not applicable
Analogue Channel 5 reports sounder/flasher/bell tone faults to the control panel
Analogue Channel 6 reports monitored input/monitored output faults/operation to the control panel
"The correct device type may not be displayed if the loop circuit has allocation faults.
Description & Commissioning Sensor, Sounder & Strobe
6 4188-897 issue 3_12/13_SenTRI Sensor Data_PART-2
Loop 1 No. 7 Optical/Heat
LB1:C End1:Hi End2:Hi
I/O:...0 Anal:1,2
2nd:250 3rd:0 Short delay:0
Zone 1 Zone 1
LED)
,6
Loop on which
the device is installed
Location of the
device on the loop
Device description
Description of
monitored input/LED
attached to the device
Loop breaker
condition C:closed
Status of End 1
of the device
(high or low)
Status of End 2
of the device
(high or low)
Digital
Input outputs
Analogue channels
used
1:Optical
2:Heat
3:N/A
4:N/A
5:Sounder/Strobe/Speech fault
6:Monitored line or LED
Secondary address
denotes group of devices
Tertiary address
used primarily by
sounders/strobe
Short circuit delay
associated with
number of T breakers
off T breakers
Zone number and label

How to check Sensor, Sounder & Strobe device Exception codes
The Exception codes are also sometimes called condition codes and these codes provide information abouta sensor device. A code
indicates small changes in the:
¨environmental condition
¨sensor mechanism
¨how the sensor performs in the system.
"To ensure that the sensor exception codes are meaningful, after power up the system should be left
undisturbed for at least 24 hours.
Definition
There are ten different conditions possible for each sensor type, although not all of them are defined. Each condition code hasa
range of 0-3,
Exception/
Condition Code
Meaning
0 This condition is OK. This code is not displayed unless another non zero code exists.
1 or 2 Suggest preventive maintenance is required, where necessary, to avoid possible false alarms.
3 The sensor is faulty. A fault condition indication is given at the control panel. A message
reading ‘Sensor Out of Specification’ is displayed.
"A sensor having code 3 is automatically disabled by the system to prevent false alarms.
To view the exceptions/condition codes of a device/outstation:
a. Press Menu On/Off button
b. Select [Info] and press <etc> to select [Event]
c. Press <etc> and select [Exception] and then select [Enter].
4188-897 issue 3_12/13_SenTRI Sensor Data_PART-2 7
Sensor, Sounder & Strobe Description & Commissioning
Time: 15:54.07 Fri 20 June 2004
Exception
Number 2 on Loop 1
condition3333333333
Time and date when exceptions (Conditon code /Subfault) were read
23:15
Device number residing on loop
number stated here whose
exceptions are shown
These exceptions/condition codes
indicate the device is probably
disconnected
These are position numbers as they appears
in the exceptions (or condition code) table.
12345678910

How to interpret Exception Codes
Exceptions
/Condition codes
Meaning Action
1000000000or
0100000000or
1100000000
This is the sub-fire band and if set should be
taken as showing that the sensor is at its optimum
sensitivity for its location.
No action need be taken.
2000000000or
0200000000or
2200000000
A sub-fire has been generated which would
suggest that the sensor was either too sensitive
for its environment or that the sensor type may
be incorrect for the location.
Action should be to check location and
alter sensor STATE or type as
required. The customer should be made
fully aware of this change. Remember
to backup all changes of STATES onto
the NVM.
0010000000or
0020000000
These codes indicate that the sensor is in a windy
location. This will cause the chamber voltage to
drop. Code Level 1 shows one drop only, Level 2
shows greater than one drop.
The location should be checked and a
change in siting made, if required.
Note: Wind will not cause the sensor to
false alarm.
0000100000or
0000200000or
0000010000or
0000020000
This shows that the sensor time averages are
close to acceptable limits.
On commissioning the sensor should
be replaced. A sensor with code 2 is
worse than code 1. On maintenance
sensors with code 2 should be
replaced.
0000001000or
0000002000or
0000000100or
0000000200
This shows that high frequency noise events
have been detected by the system. A code 1
shows one event and a code 2 shows more than
one event.
The sensor should be replaced. On
maintenance, sensor with code 2
should be replaced. If it reoccurs then
check the environment.
0000000010or
0000000020
This shows sensor hardware faults. 1 for code 1
and more than one for a code 2.
The sensor should be replaced.
0000000001or
0000000002
This shows that transmission faults are being
noted. Code 2 is worse than code 1.
The device should be replaced. If it
reoccurs then check the environment.
How to clear Exception codes
This can be done by removal and replacement of the sensor chamber, by re-allocation of the loop having the sensor or
by using the menu controls.
a. Press Menu On/Off button.
b. Select [Test/Eng] and then [Usercode].
c. Select <etc> to display and select [Config].
d. Select [Clear] and then select [Exception] and [Enter].
"All cleared codes will return if the conditions are still true.
Description & Commissioning Sensor, Sounder & Strobe
8 4188-897 issue 3_12/13_SenTRI Sensor Data_PART-2

Exception (or Condition) Codes for Sensor, Sounder & Strobe devices
Gen
type
Pos
No. Description
Exception codes
normal
band
sub fault band fault band
01 2 3
E
N
V
I
O
R
N
M
E
N
T
1st Optical
subfire
None Small signal
sensed
[Check
location,
STATE & type]
Subfire
[Check location,
STATE & type]
-
2nd Heat subfire None Small signal
sensed
[Check
location,
STATE & type]
Subfire
[Check location,
STATE & type]
-
3rd - - - - -
4th - - - - -
S
E
N
S
O
R
5th Optical
channel drift
or out of
range
OK - Close to
acceptable limit
Out of limits
[Clean/replace]
6th Heat channel
drift or out of
range
OK - - Out of limits
[Clean/replace]
7th Optical
channel
noisy (High
frequency)
OK Single HF
noise event
detected
Multiple HF
noise seen
[Check location
and report]
-
8th Heat channel
noisy (High
frequency)
OK Single HF
noise event
detected
Multiple HF
noise seen
[check location
and report]
-
D
E
V
I
C
E
9th Outstation
firmware
OK Isolated fault
[Note/report]
Repetitive fault
[Note/report/
replace]
Total failure
[Replace]
10th Outstation
transmission
OK Low error rate Medium error
rate
[Report]
High error rate
[Replace]
4188-897 issue 3_12/13_SenTRI Sensor Data_PART-2 9
Sensor, Sounder & Strobe Description & Commissioning

Sensor, Sounder & Strobe devices - Time average
reading
The typical time average values for sensors under normal operating condition are shown in the table below.
Part No Product Analogue Channels Time average Tnew
SEN-720 Heat Sensor 2 - heat 66
SEN-780-ST Heat Sensor Sounder Strobe 2 - heat 66
SEN-780 Heat Sensor Sounder 2 - heat 66
SEN-715 Optical Sensor 1 - optical 25
SEN-710 Optical & Heat Sensor 1 - optical
2 - heat
25
66
SEN-770 Optical & Heat Sensor plus Sounder 1 - optical
2 - heat
25
66
SEN-770-ST Optical & Heat Sensor + Sounder & Strobe 1 - optical
2 - heat
25
66
Foreground (fast) time average readings Background (slow) time average readings
Tnew T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11
On
demand
80mS 320mS 1.28S 5.12S 20.48S 1.36min 5.46min 21.84min 1.45hr 5.82hr 23.3hr
Normally reads 252, unless there is a
threshold.
Checking the time averages
The following procedure assumes there is no password access required.
a. Press the Menu On/Off button.
b. Select [Info] and momentarily press <etc> to select [Time Avg].
c. Type in the channel number from the range 1-6
d. Select [Device] and type in the device number for which the time average is required.
e. Select [Loop] and enter the loop number of the device and [Enter].
f. If necessary select [Repeat] to refresh the readings.
The display shows time averages for the device.
Description & Commissioning Sensor, Sounder & Strobe
10 4188-897 issue 3_12/13_SenTRI Sensor Data_PART-2
Averages Channel 1 Device 1 Loop 1
19 252 252 252 252 252 19 19 19 19 18 18
Time average readings of Channel 1 device 1 loop 1
23:15
Tnew (On demand)
Background (slow) Time
average readings T6 of T11
Channel 1 Device 1 loop 1
Foreground (fast) Time
average readings T1 to T5 of
Channel 1 Device 1 loop 1
Aver channel 1 Device 1 Loop 1
[Repeat] [Previous] [Next] [Cancel]

Sensor, Sounder & Strobe devices - Message
Action List
This list shows the messages that are likely to be displayed at the control panel or at a loop repeat panel in the fire system.
Message Action list
The messages displayed at the control panel or loop repeat panels are given for guidance only:
¨fault message
¨likely meaning of the message
¨along with suggestions on what initial actions may be taken to rectify the problem.
"Only the messages that are applicable will appear on the display of the control panel or loop repeat panels.
¨The term Outstation and device are used interchangeably.
Message
associated
with.. meaning.. ..possible action
Flash memory checksum
error
Device Memory Checksum Error Replace the device
Invalid Configuration Device EEPROM incorrectly
programmed
Replace the device
Invalid configuration Loop Processor
Card
Loop recovered with
freeblocks ON.
This is not allowed. Switch
OFF the freeblocks and
reallocate.
Memory corrupt Device EEPROM checksum failure Replace device
Program memory
corrupted
Card Checksum failure on
EPROM at midnight
Clear and ignore single
occurrence. Record in log
book
Sounder circuit has
failed
Device There is a fault with the
sounder hardware on the
SenTRI device or S-Cube.
Replace the device
Sounder circuit
Restored
Device The fault on the sounder
SenTRI device or S-Cube
has been restored
-
Speech circuit has
failed
Device There is a hardware fault
possibly associated with the
bell chip on the SenTRI
device or S-Cube
Replace the device
Speech circuit
Restored
Device The fault on the bell
SenTRI device or S-Cube
has been restored
-
Strobe circuit has
failed
Device The strobe circuit on the
SenTRI device or S-Cube
device has failed
Replace the device
Strobe circuit
Restored
Device The hardware fault
associated with the strobe
has been restored
-
4188-897 issue 3_12/13_SenTRI Sensor Data_PART-2 11
Sensor, Sounder & Strobe Description & Commissioning

Finding a Sensor,
Sounder & Strobe
device
The 'find device' is a function that gives a visual or audible
indication at the respective Sensor, Sounder & Strobe device on
a loop circuit.
a. Press the Menu On/Off button and then
[Test/Eng] .
b. Select [Loop] and then [Find Dev].
c. Now enter a Loop card number to select the loop
circuit.
d. Select [Start] and type in a device number
(usually device 1 is entered).
e. Select [Enter]. The display shows the device
and loop number.
Number 1 on Loop 1
f. Press [Next] to find the next device on the loop
and at any stage if the previous device needs to
be found then select [Previous].
A found device will provide visual or audible indication:
¨On any SenTRI device there will be a flashing
indication given by the local LED.
¨An SenTRI device with Sounder, will cause the
Sounder to output pulsed tone
¨An SenTRI device with Strobe will cause the
strobe to operate.
Loop loading
The battery standby calculator tool is available via SMStoolbox
website. The tool must be used to accurately determine the loop
loading and to ensure the devices installed on each loop are
within the maximum allowed and will meet the control panel's
standby requirement.
Turbo and Non Turbo
Modes
The Sensor, Sounder & Strobe devices can output in turbo
and/or in non turbo modes. When the panel commands a low or
high tone output at Sensor, Sounder & Strobe devices, if
configured during commissioning, the Sensor, Sounder & Strobe
device will output turbo and/or non turbo tones. The high and
low FAB mappings are used to change the tone output of the
Sensor, Sounder & Strobe device sounder. The turbo mode
outputs a waveform with a basic frequency that is the same
frequency as the resonant frequency of the Sensor, Sounder &
Strobe device piezo. The non turbo mode outputs modulated
turbo waveform.
No. Description
0
1
2
3
4
5
8
9
10
11
12
13
Turbo square wave
Turbo high tone
Turbo low tone - high output
Turbo low tone
Turbo rich high tone
Turbo rich low tone
Non-Turbo square wave
Non-Turbo high tone
Non-Turbo low tone - high output
Non-Turbo low tone
Non-Turbo rich high tone
Non-Turbo rich low tone
"The volume levels and power requirements of
the Sensor, Sounder & Strobe devices operating in turbo
mode are significantly higher than in non-turbo mode.
Description & Commissioning Sensor, Sounder & Strobe
12 4188-897 issue 3_12/13_SenTRI Sensor Data_PART-2
Turbo rich low tone
Turbo rich high tone
Turbo low tone
Turbo low tone - high output
Turbo square wave
Turbo high tone
Non-Turbo rich low tone
Non-Turbo rich high tone
Non-Turbo low tone (Default)
Non-Turbo low tone - high output
Non-Turbo square wave
Non-Turbo high tone (Default)
Waveforms with basic frequency
same as resonant frequency of piezo
Modulated version of turbo waveform

System test
Preparation
¨Check to ensure access will be provided to areas
where installed equipment is to be tested, such as
in locked or secure areas.
¨Ensure all sensor dust covers are removed.
¨Tests may be made easier by having: sensor
extractor tool, smoke pole and canister, heat gun.
&Health and safety must be observed when
using these test tools.
Communication to site occupants
¨Before undertaking any of these tests and to
prevent unnecessary building evacuation,
ensure:
•all affected personal on site are informed via a
responsible person that the fire alarm system
is being commissioned.
•where there is a link to an alarm receiving
centre, the appropriate action should be taken
to ensure they are informed that tests are
being carried out on the system.
Commissioning computer
It is much easier for the panel and system to be configured from
a Commissioning computer, see Programming tool manual.
Test / Commissioning mode
"The [Reset / No Reset] is a toggle option and is
under the Test / Commissioning mode function, it allows
the test on sensor devices with or without a panel reset.
The zone test mode function must be used to test sensor
devices in the system.
¨A zone may be put in to the test mode when
testing devices in a zone. It allows the engineer to
test zones without having to return to the panel to
silence alarms and reset the system.
While the panel is in the Zone test mode, following
a fire event the alarm sounds for 5 seconds and
the panel automatically performs a silence alarm
sequence and thereafter a panel reset, see note.
The panel inhibits the operation of delay block
functions, network functions, auxiliary and clean
contact relays operation in this mode.
¨All zones of the system that are not in test mode
will operate normally.
¨To put the panel in or out of zone test mode:
Press Menu On/Off button and select [Test/Eng].
Select [UserCode] and enter the Engineering
password (PIN), this need only be done if an
Engineering password is set up. Press <etc> and
select [Test] and select [Zone] and toggle select
[Reset / No Reset], whatever it reads that is what
is selected. Now select [On] and type in the zone
number and select [Enter].
¨On completion of tests ensure the Zone mode is
switched OFF and notice the Test indicator will
also switch Off.
Testing Fire Sensors
"It is important to ensure that the panel is in
Test mode before testing sensors in the system.
&
1. When testing heat sensors DO NOT use a heat
gun to test heat sensors in a hazardous
environment.
2. Recommended test equipment and methods must
be used to fire test flame detectors off interface
units.
4. When smoke testing fire sensors using artificial
smoke, avoid excessive spray to prevent
accumulation of sticky residue on sensor, see
instructions on the smoke canister.
5. The beam sensors should be tested using
obscuration filters to simulate smoke at default
sensitivity.
The BS5839:Part 1 recommends that all sensors are tested for
correct operation.
¨Unless otherwise instructed all sensors should be
tested.
¨Each sensor should also be checked for any
physical obstacles that would inhibit the operation
of the sensor in the event of a fire.
¨Where practical, each conventional flame detector
operating via an interface unit should be
functionally tested.
Testing the devices
¨The sensor(s) part of a device must be system
tested as per previous section.
¨For the Sounder part of the device ensure the
device outputs correct signal at the appropriate
volume level and ensure the strobe operates at
the required flash rate. All Sensor, Sounder &
Strobe devices in the system should have been
setup using the commissioning tool.
¨Each Sensor, Sounder & Strobe device should be
tested for correct operation in the event of fire.
¨The sound levels in the areas should be tested in
accordance with the British Standard
requirements and to meet the site specific needs
as agreed with the customer.
4188-897 issue 3_12/13_SenTRI Sensor Data_PART-2 13
Sensor, Sounder & Strobe Description & Commissioning
Test

Commissioning tool
settings
Description and Commissioning Sensor, Sounder & Strobe
Gent by Honeywell reserves the right to revise this publication from time to time and make changes to the content hereof without
obligation to notify any person of such revisions of changes.
Hamilton Industrial Park, Waterside Road, Leicester LE5 1TN, UK Website: www.smsfire.co.uk
Telephone [phone] Technical support: www.smstoolbox.co.uk Fax (UK): [phone]
14 4188-897 issue 3_12/13_SenTRI Sensor Data_PART-2
Do not dispose of with your normal household waste.
Do not burn.
WEEE Directive:
At the end of their useful life, the packaging,
product and batteries should be
disposed of via a suitable recycling centre.
At the end of their useful life, the packaging,
product and batteries should be disposed of
via a suitable recycling centre and in
accordance with national or local legislation.
High and Low tone selection or
Tone followed by message selection
for signals 0, 1, 2 and 3
Sounder or Speech and
Strobe enable / disable
Strobe flash rate of 1 or 2
flashes per second.
Attention tone Speech Message
Standard
or
tone
Complex Message
Select the maximum
required volume out
of Sounder
SEN-7XX device.
High and Low FAB tone
selection from a range
of turbo and non turbo
tones.
Repeat
Fire LED
SEN-TRI device Fire LED
Soft start settings can be applied
to sounder and speech SEN-7XX range.
Set the start volume and % increment
by which the volume should increase.
10 to 60 seconds
All % settings
range from 0 to 100%
in increments of 5%
To select line type:
- Unmonitored output
- Monitored input or
- Monitored output
To select input type:
- Fire detector
- Fault
- Superviosry
- Other fire
-MCPfire
1a Configuration
Menu selection
SenTRI Config...
Icon selection
1
1b
2
3
4
5