Listec d-LIST SCU 835 User manual
d-LIST® Line Type Heat
Detector
Instructions for use
Sensor Control Unit SCU 835
Sensor Cable SEC 15
Valid as of:
Firmware version V01.00.xx
Serial number 338270 17
LISTEC GmbH ▪ Am Sandberg 34 ▪ D-84424 Isen
Tel. +49 8083 5385-0 ▪ Fax +49 8083 5385-20
www.listec-gmbh.de ▪ info@listec-gmbh.de
A company of the Swiss Securitas Group
LISTEC and LIST are registered trade marks
Instructions for use SCU 835 / SEC 15
All rights reserved under copyright laws.
No part of this manual may be duplicated, transferred to third parties, or used for other purposes than intended,
without prior written consent of LISTEC GmbH.
The German version is binding for technical documentation translations.
Delivery options and technical data are subject to change without prior notice!
Copyright © LISTEC GmbH 2021
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SCU 835 / SEC 15 Instructions for use
Content
1 Conventions........................................................................................................................................... 6
1.1 Validity......................................................................................................................................................
2 Safet and general information............................................................................................................. 7
2.1 Safety....................................................................................................................................................... 7
2.2 Intended use of the product...................................................................................................................... 8
2.3 Warranty................................................................................................................................................... 9
2.4 Hardware / Firmware................................................................................................................................ 9
2.5 Software licensing..................................................................................................................................... 9
2. Standards and product marking.............................................................................................................. 10
2. .1 General information................................................................................................................................ 10
2. .2 Product identification / type plates...........................................................................................................10
2.7 Environmental protection........................................................................................................................ 13
2.8 Further documentation............................................................................................................................ 13
3 S stem description and function........................................................................................................15
3.1 General information................................................................................................................................ 15
3.2 Sensor cable connections....................................................................................................................... 15
3.2.1 Standard prefabrication CBO 15 and multiple branching........................................................................1
3.2.2 Connection on site.................................................................................................................................. 19
3.2.3 Maximum cable length............................................................................................................................ 20
3.2.4 Prefabrication via connector SECcon 15.................................................................................................21
3.2.5 External sensors ESD-A5....................................................................................................................... 22
3.3 Operation modes.................................................................................................................................... 24
3.3.1 Auto-function mode................................................................................................................................. 24
3.3.2 Configuration mode................................................................................................................................. 24
3.4 Programming.......................................................................................................................................... 24
3.5 Measuring cycles.................................................................................................................................... 24
3. Evaluation of the temperature values...................................................................................................... 25
3.7 Parameter sets....................................................................................................................................... 25
3.8 Reference profile..................................................................................................................................... 2
3.9 Alarm triggering....................................................................................................................................... 2
3.10 Alarm signalling....................................................................................................................................... 2
3.11 Fault signalling........................................................................................................................................ 27
3.12 Indicators on the front panel.................................................................................................................... 27
3.13 Operating voltage.................................................................................................................................... 27
3.14 Sensor cable connections....................................................................................................................... 27
3.15 External reset.......................................................................................................................................... 27
3.1 Relay outputs.......................................................................................................................................... 27
3.17 Optocoupler outputs................................................................................................................................ 28
3.18 Optocoupler inputs.................................................................................................................................. 28
3.19 Communication interfaces....................................................................................................................... 28
3.20 Optional equipment - adapter plates for alarm transponder FACP..........................................................28
3.21 Real time clock....................................................................................................................................... 28
4 Installation............................................................................................................................................ 29
4.1 Sensor cable SEC 15.............................................................................................................................. 29
4.1.1 Installation of the sensor elements SEC 15.............................................................................................30
4.1.2 Spacing of fixing elements...................................................................................................................... 30
4.1.3 Distance to electrotechnical equipment...................................................................................................30
4.1.4 Cable imprints......................................................................................................................................... 31
4.1.5 Pre- and/or post-runs.............................................................................................................................. 31
4.1. Cut sensor element................................................................................................................................. 32
4.2 Connection box CBO 15......................................................................................................................... 33
4.3 Connection cable CC 15......................................................................................................................... 3
4.4 End device END...................................................................................................................................... 3
4.5 SCU 835................................................................................................................................................. 37
5 Sensor cable connections................................................................................................................... 41
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Instructions for use SCU 835 / SEC 15
5.1 Stripping the sensor element.................................................................................................................. 41
5.2 Crimping the sensing element................................................................................................................. 42
5.3 Shield connection on the sensor element...............................................................................................43
5.4 Universal connection modules UCM 15.................................................................................................. 43
5.4.1 UCM 15-SEC.......................................................................................................................................... 44
5.4.2 UCM 15-ESD.......................................................................................................................................... 45
5.5 Plug connectors SECcon 15................................................................................................................... 4
5.5.1 Connect connection cable CC 15............................................................................................................ 4
5.5.2 Unlock SECcon 15 connections.............................................................................................................. 47
5.5.3 Opening the SECcon 15 plug connector................................................................................................. 48
6 Connections and settings SCU 835....................................................................................................48
.1 Connection terminals mainboard / relay board........................................................................................49
.2 Supply voltage........................................................................................................................................ 50
.3 Sensor cable connections....................................................................................................................... 50
.4 External reset.......................................................................................................................................... 51
.5 Relay outputs at MB SCI 835.................................................................................................................. 52
. Optocoupler outputs / RS232 interface...................................................................................................54
.7 Optocoupler inputs.................................................................................................................................. 55
.8 Communication interfaces....................................................................................................................... 5
.8.1 RS232 interface...................................................................................................................................... 57
.8.2 RS485 interface...................................................................................................................................... 57
.9 USB Interface......................................................................................................................................... 58
.10 Ethernet interface (LAN)......................................................................................................................... 59
.11 Micro-SD card......................................................................................................................................... 59
.12 Outputs relay board REL 835.................................................................................................................. 0
.13 eXtendedLineModule XLM 35.................................................................................................................
.14 MultiLine-SpecialFireDetector ML-SFD................................................................................................... 7
.15 Optional accessories - adapter plates for alarm transponder FACP........................................................ 8
.15.1 Alarm transponder BX-IO3 (Schrack Seconet AG)................................................................................. 9
.15.2 Alarm transponder 808 23 (Honeywell/ESSER).....................................................................................70
.15.3 Alarm transponder FDCIO222 (Siemens AG)......................................................................................... 71
.1 Real time clock....................................................................................................................................... 71
7 Indicators and operation...................................................................................................................... 72
7.1 Indicators on the front panel.................................................................................................................... 72
7.2 Operation on mainboard MB SCI 835.....................................................................................................73
7.2.1 Reset push button................................................................................................................................... 73
7.2.2 MC-Restart push button.......................................................................................................................... 73
7.2.3 S1 push button........................................................................................................................................ 74
7.2.4 S2 push button........................................................................................................................................ 74
7.2.5 Push button combinations....................................................................................................................... 74
7.2.5.1 Auto-function mode................................................................................................................................. 74
7.2.5.2 Firmware update..................................................................................................................................... 74
8 Notes on inspection of the RLTHD..................................................................................................... 75
9 Notes on maintenance of the RLTHD.................................................................................................. 75
10 Notes on commissioning of the RLTHD............................................................................................. 75
11 Dimensions and further installation instructions..............................................................................76
11.1 SCU 835................................................................................................................................................. 7
11.2 Cable clamp CLIC 15 / CLIC TOP 15 / mounting device MDP 25...........................................................77
11.3 J-clamp 1.4571 / mounting device MDJ 40.............................................................................................78
11.4 J-clamp 1.4529 / mounting device MDJ 50.............................................................................................79
11.5 Cable clamp MDC................................................................................................................................... 80
11. Cable tie FEMC....................................................................................................................................... 80
11.7 Connection box CBO 15......................................................................................................................... 81
11.8 Connectors SECcon 15.......................................................................................................................... 82
11.9 External sensors ESD-A5....................................................................................................................... 83
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SCU 835 / SEC 15 Instructions for use
12 Terminal block diagrams..................................................................................................................... 84
12.1 SCU 835................................................................................................................................................. 84
12.2 SCU 835 with optional relay board REL 835...........................................................................................84
12.3 SCU 835 with optional eXtendedLineModule XLM 35.............................................................................8
12.4 SCU 835 with optional alarm transponder BX-OI3..................................................................................87
12.5 SCU 835 with optional alarm transponder 808 23..................................................................................88
12. SCU 835 with optional alarm transponder FDCIO222.............................................................................89
12.7 SCU 835 with optional MultiLine-SpecialFireDetector Module ML-SFD..................................................90
12.8 Connection box CBO 15-SEC................................................................................................................. 90
12.9 Connection box CBO 15-ESD................................................................................................................. 90
13 Spare parts............................................................................................................................................ 91
13.1 Sensor control unit SCU 835................................................................................................................... 91
13.2 Connection box CBO 15......................................................................................................................... 94
13.3 Sensor cable SEC 15.............................................................................................................................. 95
13.4 Connectors SECcon 15.......................................................................................................................... 97
13.5 Tools....................................................................................................................................................... 98
14 Maintenance / servicing....................................................................................................................... 99
14.1 General information................................................................................................................................ 99
14.2 Exchange of assemblies......................................................................................................................... 99
14.2.1 Mainboard MB SCI 835........................................................................................................................... 99
14.2.1.1 Removal of defective mainboard MB SCI 835.........................................................................................99
14.2.1.2 Installation of a new mainboard MB SCU 835.......................................................................................100
14.2.2 Relay board REL 835............................................................................................................................ 101
14.2.2.1 Removal of defective relay board REL 835........................................................................................... 101
14.2.2.2 Installation of a new relay board REL 835.............................................................................................102
14.2.3 Universal connections modules UCM 15.............................................................................................. 103
14.2.3.1 Removal defective universal connection module UCM 15....................................................................103
14.2.3.2 Installation of a new universal connection module UCM 15..................................................................104
14.2.4 Exchanging a connection box CBO 15.................................................................................................. 10
14.2.4.1 Removal of defective connection box CBO 15......................................................................................10
14.2.4.2 Installation of a new connection box CBO 15........................................................................................107
15 Information about IP protection classes..........................................................................................108
16 Alarms, faults, notes and troubleshooting.......................................................................................109
1 .1 Alarm and pre-signal events SCU 835.................................................................................................. 109
1 .2 Sensor cable SEC 15 faults.................................................................................................................. 109
1 .3 General device malfunctions SCU 835.................................................................................................. 110
1 .4 Status messages SCU 835................................................................................................................... 110
17 Photo credits....................................................................................................................................... 110
18 Abbreviations in this manual............................................................................................................. 111
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Instructions for use SCU 835 / SEC 15
1 Conventions
Following text formatting conventions are used throughout this manual:
Font format for displays in GUI d-LISTconfig.
Font format for abbreviations and headers in tables.
Font format for important information.
Font format for program-buttons.
→
→ Reference for further reading.
Read instruction manual
For safe and proper use, it is essential that the instructions manual and other documents accompanying
the product are read carefully before use and kept for future reference. In particular, it is essential to ob-
serve the hazard warnings.
Note
Important information which may concern e.g. installation, assembly, commissioning, operation and
others and which should be observed.
Environmental protection
The product or components thereof, including their packaging, are made of recyclable material and can
be sent for recycling if the disposal instructions in this document are observed.
Caution
Important note which may concern e.g. installation, assembly, commissioning, operation and others and
which should be observed.
Warning / Attention
Very important note which may concern e.g. installation, assembly, commissioning, operation and oth-
ers and which must be observed.
ESD Precautions
The product contains electronic components that are sensitive to electrostatic discharge. Contact by per-
sons or objects can cause electrostatic discharge, which may damage or destroy the product. As a pre-
ventive precaution, ESD tapes are used to ground people and for potential equalization.
1.1 Validit
References to equipment versions
This document is valid as of the following versions:
SCU 835 Firmware V01.00.xx
Serial number 338270 17
SCI 835 Mainboard of the SCU 835 338270 17
Relay board REL 835 Serial number 338270 17
3382706176 is the first unique serial number assigned to the manufacturer of these products within the
Swiss Securitas Group, division Special Fire Detector Technology. The serial numbers are in ascending
order and can be freely assigned to the products up to the provisional final serial number 3383754751
devices, circuit boards, connection boxes etc.
Page /112 LISTEC GmbH 0T328-02-LI-en / 29.01.2021
SCU 835 / SEC 15 Instructions for use
Note on technical drawings
In general, all specifications are in millimetres [mm , unless otherwise or directly stated in the technical
drawings.
2 Safet and general information
2.1 Safet
Read before installing, commissioning, maintaining, or operating the product.
Take note of, and observe all safety and operating instructions, to avoid malfunction or damage to the product.
SCU 835:
ESD Precautions
To avoid damage to the control unit and to the sensor cable, disconnect power before adding or removing
cables or printed circuit boards.
When working on an open unit provisions against ESD must be applied, such as an earthing mat with
wrist strap.
Connections may only be made while the unit is switched off.
Appropriate shipping, handling, and storage, as well as professional installation, commissioning and operation are
all required to assure safe functioning of the equipment. Never pour any liquid into the housing of the equipment.
Short circuits and fire could result. Do not drop the equipment.
Operate the device only at temperatures between -25 °C and +70 °C. Avoid exposure to moisture
Get the equipment checked by manufacturer, if:
moisture has penetrated into the equipment,
it does not work well, or it does not work according to the user's manual,
it was dropped or damaged,
it shows obvious signs of breakage.
Sensor cable:
Attention
The following precautions must always be adhered to in order to not damage the sensors inside the
cable. Failing to comply with these precautions voids warranty.
Humidit
The sensor cable must always be protected from humidity, i.e. the cable ends must be sealed while sto-
ring or mounting the cable.
Bending
The minimum bending radius of the sensor cable is 25 cm. This limit must be adhered to at all times in
order to not damage the sensors inside the cable!
Installation temperature
The sensor cable may not be installed below +10 °C of its own temperature (+ 50 °F)! The sensor cable
must have an own temperature between +10 °C ... +40 °C during the entire installation process (+ 50 °F
… 104 °F)! This limit must be adhered to at all times in order to not damage the sensors inside the cable!
Note
A corresponding information is attached to each cable drum or cable ring (document no. F019).
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Instructions for use SCU 835 / SEC 15
2.2 Intended use of the product
The d-LIST system consists of the following components:
Sensor control unit: SCU 835.
Sensor element: Sensor cable SEC 15.
Function elements: Connection cable CC 15, connection boxes type CBO 15, as well as connectors
type SECcon 15.
Attention
The components mentioned above may only be used for temperature monitoring and/or early fire detec-
tion as a resettable linear heat detector according to EN 54-22 or comparable standards for heat detect-
ors.
Typical application examples are:
Road tunnels.
Railway, metro / underground tunnels.
Metro / underground stations.
Conveyor belts.
Cable trays and utility tunnels.
Parking garages.
Bus stations and tunnels.
Control cabinets.
Waste recycling industry.
Temperature monitoring of:
Photovoltaic / solar systems.
Intermediate floors and ceilings in buildings.
Power stations / substations / wind power stations.
Passenger and transport ships.
Technical equipment of trains.
Cold storage.
Geothermal installations.
Grain dryers.
As well as other installations in all industrial sectors where temperature monitoring / early fire detection is
necessary to protect people, goods and buildings.
Note
Detailed information on typical applications can be found in document 60V219 - Guidelines for planning
and installation SCU 835 / sensor cable SEC 15.
Table ZA.2 according to EN 54-22:
Product Intended use Levels or classes Attestation of conformit s stem
Heat detector Fire safety --- 1
Table 1: Intended use
Attention
If the d-LIST system is not used for its intended purpose, there is no warranty and it contradicts the C
Directives according to the Construction Products Regulation (EU) No. 305/2011 (EU-BauPVO).
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SCU 835 / SEC 15 Instructions for use
2.3 Warrant
The manufacturer of the d-LIST system is certified according to DIN EN ISO 9001 in its current version. All manu-
factured components are subject to continuous quality control.
In the event of a problem with the equipment contact the authorised installer or the supplier of your system.
The two year warranty period begins with the date of delivery. All parts, that become defective because of a demon-
strable flaw in their manufacture or material, will be replaced or repaired free of charge during this period. Such
cases will not extend the original warranty period, nor will a new warranty period be granted for the replaced or re-
paired parts. Further claims are excluded, particularly depreciation, conversion, compensation for damages or con -
sequential losses. Beyond these regulations, the current General Conditions for the Supply of Products and
Services of the Electrical and Electronics Industry are applicable, as issued by ZVEI, the Zentralverband
Elektrotechnik- und Elektronikindustrie e.V.
2.4 Hardware / Firmware
The hardware consists of different components that can be connected or combined to form a d-LIST system. This
includes the following assemblies and materials:
Sensor control unit SCU 835, consisting of:
Case with built-in mainboard MB SCU 835 (≙ MB SCI 835), optional with additional equipment:
Relay board REL 835, or
eXtendedLine-Module XLM 35, or
MultiLine-SpecialFireDetector ML-SFD, or
FACP alarm transponder 808623, or
FACP alarm transponder FDCIO222, or
up to two FACP alarm transponders BX-OI3.
Connection boxes CBO 15-SEC and/or CBO 15-ESD.
Sensor cable SEC 15.
External sensors ESD-A5.
Connection cable CC 15.
Various fixing and mounting materials.
The firmware is stored in the flash memory of the SCU 835. All parameters required for setting the device are stored
in the external flash.
Attention
The SCU 835 may only be operated with the suitable original firmware of the manufacturer.
Any unauthorized interference with the firmware or the use of non-original firmware may result in mal-
function and/or damage to the device. Furthermore, all warranty and liability claims against the manufac-
turer of the SCU 835 are void.
© Cop right
Every SCU 835 firmware is subject to the copyright of LISTEC GmbH. Any unauthorized interference with
the firmware, misuse, copying or trade in the firmware constitutes copyright infringement and will be pro -
secuted.
Pictures and drawings are subject to the copyright of LISTEC GmbH, unless otherwise stated in the re-
spective categories of these operating manual (→ 17).
2.5 Software licensing
The software described in this manual uses source-code generated by third parties, released under the GNU Gen-
eral Public License (GPL), GNU Lesser General Public License (LGPL) or other open source licenses. To comply
with the aforementioned licenses, a CD-copy of the source-code, including the changes, is available free of charge
on request, against a refund for materials, shipping and handling. The source-code is not needed for the use of the
equipment described in this manual.
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Instructions for use SCU 835 / SEC 15
2.6 Standards and product marking
2.6.1 General information
Equipment and sensor cable comply with the applicable European guidelines and other relevant standards as out-
lined in the Declaration of Conformity 01CK045 and are marked with the C sign.
Note
This documentation contains terms and statements from product standard EN 54-22 – resettable line-
type heat detectors.
2.6.2 Product identification / t pe plates
The SCU 835 and various assemblies and accessories are provided with a type plate for easy identification. These
are marked as follows:
Sensor control unit SCU 835
Connection box CBO 15
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Fig. 1: Type plate SCU 835
Fig. 2: Type plate CBO 15-SEC
SCU 835 / SEC 15 Instructions for use
Assembled circuit boards
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Fig. 5: Type plate mainboard MB SCI 835
Fig. 3: Type plate CBO 15-ESD
Fig. 4: Type plate mainboard MB SCU 835 (Replacement article for MB SCI 835)
Fig. : Type plate relay board REL 835
Fig. 7: Type plate universal connection module UCM 15-SEC
Instructions for use SCU 835 / SEC 15
Secondary packaging of printed circuit boards
Note
The relay board REL 835 is delivered individually packed as an option to the SCU 835. In addition to the
nameplate of the board, another nameplate is attached to the outer packaging and is still valid for the fol -
lowing spare boards:
Mainboard MB SCU 835
Relay board REL 835
Universal connection module UCM 15-SEC as well as UCM 15-ESD.
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Fig. 9: Type plate II secondary packing mainboard MB SCI 835
Fig. 10: Type plate II secondary packing relay board REL 835
Fig. 8: Type plate universal connection module UCM 15-ESD
SCU 835 / SEC 15 Instructions for use
2.7 Environmental protection
WEEE / RoHS / REACH
A product carrying this symbol may not be treated as household waste. Correct disposal of the equip-
ment will relieve the burden on the environment. For more detailed information, please contact your
waste disposal service.
All products and components comply with the current RoHS Directive 2011/ 5/EU as well as the REACH
Regulation EC No. 1907/200 . The RoHS and REACH conformity is explained in the documents
60CR005 and 60CR006. With regard to the SVHC affected products we refer to document 01CR008.
2.8 Further documentation
Data sheets Categor Document number
External sensor ESD-A5 Sales document 60V039
Sensor cable SEC 15 Sales document 60V040
Service case SC 15 Sales document 60V057
Mounting devices SEC Sales document 60V082
12 V Accumulators Sales document 60V119
SEC 15 simulator CSM 30 Sales document 60V134
Connection cable CC 15 Sales document 60V175
Prefabrication SECcon 15 Sales document 60V184
Service case SC 15/20 Sales document 60V185
Sensor control unit SCU 835 Sales document 60V206
Connection box CBO 15 Sales document 60V212
Table 2: Further documentation – data sheets
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Fig. 11: Type plate II secondary packing universal connection module UCM 15-SEC
Fig. 12: Type plate II secondary packing universal connection module UCM 15-ESD
Instructions for use SCU 835 / SEC 15
Terminal block diagrams Categor Document number
Sensor control unit SCU 835 Technical Document 60T364
Sensor control unit SCU 835 + REL 835 Technical Document 60T365
Sensor control unit SCU 835 + XLM 35 Technical Document 60T366
Sensor control unit SCU 835 + BX-IO3 Technical Document 60T367
Sensor control unit SCU 835 + 808623 Technical Document 60T368
Sensor control unit SCU 835 + FDCIO222 Technical Document 60T369
Sensor control unit SCU 835 + ML-SFD Technical Document 60T382
Table 3: Further documentation – terminal block diagrams
Dimensions Categor Document number
J-cable clamp 1.4571 /
Mounting device MDJ 40 Technical Document 60T069
Cable clamp CLIC 15 / CLIC TOP 15 as well as
Mounting device MDP 25 Technical Document 60T115
Cable clamp MDC Technical Document 60T146
Accumulator 12 V / 7,2 Ah Technical Document 60T149
Accumulator 12 V / 12 Ah Technical Document 60T150
Accumulator 12 V / 17 Ah Technical Document 60T151
Accumulator 12 V / 24 Ah Technical Document 60T152
Accumulator 12 V / 38 Ah Technical Document 60T153
Accumulator 12 V / 5 Ah Technical Document 60T154
Cable tie for rope assembly FEMC Technical Document 60T197
J- cable clamp 1.4529 /
Mounting device MDJ 50 Technical Document 60T288
SEC 15 simulator CSM 30 Technical Document 60T301
Connector SECcon 15-C/f Technical Document 60T318
Connector SECcon 15-C/m Technical Document 60T319
Connector SECcon 15-S/f Technical Document 60T320
Connector SECcon 15-S/m Technical Document 60T321
Connection box CBO 15-SEC Technical Document 60T370
Connection box CBO 15-ESD Technical Document 60T371
Sensor control unit SCU 835 Technical Document 60T387
Table 4: Further documentation - dimensions
Manuals / protocols / instructions Categor Document number
Inspection protocol SCU 835 / SEC 15 Technical Document 60T329
Inspection instructions SCU 835 / SEC 15 Technical Document 60T330
Maintenance protocol SCU 835 / SEC 15 Technical Document 60T331
Maintenance instructions SCU 835 / SEC 15 Technical Document 60T332
Commissioning protocol SCU 835 / SEC 15 Technical Document 60T333
Commissioning instructions SCU 835 / SEC 15 Technical Document 60T334
Operation Manual GUI d-LISTconfig Technical Document 60T340
Guidelines for planning and installation SCU 835 /
sensor cable SEC 15 Sales Document 60V219
Table 5: Further documentation - manuals / protocols / instructions
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SCU 835 / SEC 15 Instructions for use
3 S stem description and function
Note
In general, detailed information on the products, such as properties, specification, sensor distances etc.
is written in the corresponding data sheet (→ 2.8) or from the guidelines for planning and installation
(→ Document 60V219).
3.1 General information
d-LIST is a temperature measuring system or a resettable linear heat detector according to EN 54-22, based on a
sensor cable. Due to its closed cable construction and the high measuring resolution, the system can be used even
under the harshest environmental conditions.
The SEC 15 sensor cable consists of a 2-core flat ribbon cable and temperature sensors connected to it with indi-
vidual addresses. The digital temperature data transmission allows a maximum sensor cable length per cable con-
nection I / II of max. 320 m at 10 m sensor distance, or 100 m at 1 m sensor distance (→ 3.2.3).
Depending on the application area, the sensor distance can be freely selected. If required, the cable can also be
branched several times (→ 3.2.1). The sensors have fixed addresses so that their physical position is precisely
defined. The position of the sensors is marked on the cable sheath with a consecutive 3 to 4-digit number. In addi-
tion, the cable number is also indicated on each sensor imprint, so that each cable and each sensor can be traced
back (→ 4.1.4).
The cable is fully screened by an aluminium foil to protect it from electromagnetic influences. Sheathing materials
are halogen free and flame-retardant.
The d-LIST sensor cable can be used in a temperature range from -40 °C to +85 °C. For short term the cable and
its components can withstand temperatures of up to +120 °C. Regardless of the cable length and the number of
sensors, the measured temperatures at cable connection I / II are recorded with a resolution of 0.0625 °C and the
repeatability is ± 0.0625 K.
These values are limited by software protocol to 0.1 °C and a repeatability of ± 0.1 K, since a higher resolution is ir-
relevant for the response classes according to EN 54-22.
The SCU 835 supplies the d-LIST sensor cable with a voltage of +5 V DC, carries out a cyclical query of the con-
nected sensors, acquires the received temperatures and evaluates them according to various criteria.
3.2 Sensor cable connections
Prefabricated sensor elements can be supplied on customer request. Exact details of cable length, sensor spacing
and type of pre-assembly must be observed so that the desired article can be produced as desired. No special tools
are required for the installers to connect the sensor elements to a CBO 15 connection box or to connect them via
SECcon 15 plug connector (→ 3.2.4, 5.5).
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Cable jacket
Aluminium shield
Filler material
Temperature sensor
Flat ribbon conductor
Strain relief strands
Fig. 13: Cable construction SEC 15
Instructions for use SCU 835 / SEC 15
3.2.1 Standard prefabrication CBO 15 and multiple branching
Prefabricated sensor cable SEC 15 can be connected directly to connection box CBO 15-SEC and/or CBO 15-ESD
(customer specifications regarding cable lengths and sensor distance required). Multiple branching is possible using
CC 15 connecting cable.
Note
In the CBO 15 prefabrication, the female crimp connectors CLB 2 and the shield connector SCON 15/1
already attached to the sensor cable and only need to be connected to the CBO 15. For applications with
branches, each sensor cable branch should be ≤ 30 m and ≤ 15 sensors. It is recommended to activate
the adapter elements on the UCM 15 universal connection modules.
Up to five multiple branching for each sensor cable port I / II are possible.
350 m maximum total cable length per sensor cable port (sensor cable SEC 15 + connection cable CC 15,
depending on the maximum number of sensors per connection).
100 sensors maximum per sensor cable port I and II.
The prefabrication CBO 15 includes an end device END on the sensor cable SEC 15 as well as female
crimp connector CLB 2 and shield connector SCON 15/1 on the other end of the sensor cable.
Simple replacement of sensor elements after damage is possible without special tools.
Can be connected to cable port I and/or II of the device.
Attention
For the following example applications with multiple branches: Further sub-branches are not possible!
The maximum cable length is reduced with the number of branches (→ Examples).
Page 1 /112 LISTEC GmbH 0T328-02-LI-en / 29.01.2021
Fig. 14: Multiple branching: 2-times with max. 300 m per cable connection
Instructions for use SCU 835 / SEC 15
Page 18/112 LISTEC GmbH 0T328-02-LI-en / 29.01.2021
Fig. 1 : Multiple branching: 4-times with max. 220 m per cable connection
SCU 835 / SEC 15 Instructions for use
3.2.2 Connection on site
If standard sensor cable SEC 15 is supplied, it can be connected by trained personnel on site. A suitable cable knife
is required to strip the cable. The female crimp connector CLB 2 must be crimped with a suitable crimping tool
CLCT onto the stripped flat cable and the shield connector SCON 15/1 must be pushed between the filling material
and the aluminium shield. (→ 5.2).
Important note
When inserting the shield connector SCON 15/1 make sure that there is contact to the aluminium shield.
A check with a multimeter is recommended (→ 5.3).
0T328-02-LI-en / 29.01.2021 LISTEC GmbH Page 19/112
Fig. 17: Multiple branching: 5-times with max. 190 m per cable connection
Instructions for use SCU 835 / SEC 15
3.2.3 Maximum cable length
Note
The following information refers to installations in Germany according to standard VDE 0833-2. Except
for Germany, the respective national regulations must be observed. The maximum cable length always
corresponds to the length of the sensor cable SEC 15 and the connection cable CC 15 and applies per
cable connection I / II of the SCU 835. Sensor spacing SEC 15/10 are suitable e.g. for tunnel applications
where there are no restrictions regarding detector groups. For calculations of the monitoring area, see
document 60V219 - Guidelines for planning and installation.
Specifications concern 1-channel operation with sensor cable connection to port I or II
Sensor spacing Total length of sensor cable SEC 15 Total length of connection cable CC 15
SEC 15/01 (1 m) 100 m (100 Sensors) 250 m
SEC 15/02 (2 m) 200 m (100 Sensors) 150 m
SEC 15/03 (3 m) 252 m (84 Sensors) 98 m
SEC 15/04 (4 m) 320 m (80 Sensors) 30 m
SEC 15/05 (5 m) 320 m ( 4 Sensors) 30 m
SEC 15/10 (10 m) 320 m (32 Sensors) 30 m
Table : Sensor cable length in 1-channel operation
Specifications concern 2-channel operation with sensor cable connection to port I and II
Sensor spacing Total length of sensor cable SEC 15 Total length of connection cable CC 15
SEC 15/01 (1 m) 200 m (200 Sensors) x m / Port (→ Note)
SEC 15/02 (2 m) 238 m (119 Sensors) x m / Port (→ Note)
SEC 15/03 (3 m) 252 m (84 Sensors) x m / Port (→ Note)
SEC 15/04 (4 m) 320 m (80 Sensors) x m / Port (→ Note)
SEC 15/05 (5 m) 400 m (80 Sensors x m / Port (→ Note)
SEC 15/10 (10 m) 40 m ( 4 Sensors) x m / Port (→ Note)
Table 7: Sensor cable length in 2-channel operation
Page 20/112 LISTEC GmbH 0T328-02-LI-en / 29.01.2021
Fig. 18: Maximum cable length
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