MXF100 Optical
Contents
1. matn a a a n Salal Minerva Applications Power Stations MoD Property Road and Rail Tunnels Mass Transit Railway Systems Petrochemical and Oil Terminals Airport Terminals and Hangars Process Plants Distilleries Escalators Roof Tanks Warehouses and Cold Stores Cable and Utility Tunnels Data Processing Centres Parking Garages Conveyer Belts Offshore The Minerva Fireline MFX100 is a revolutionary laser and fibre optic based Linear Heat Detection system providing a fast flexible and highly resilient means of detecting fires and protecting both people and plants in a wide variety of risks The technology is well proven and has already been specified and successfully installed in many different applications Optical Fibre Temperature Sensing Technology Introduction The Minerva Fireline MXF100 uses a combination of powerful laser technology and computer processing to provide fast and accurate temperature measurement along a 2 Km loop of fibre optic cable Precise fire and sensor cable break detection can be determined within an accuracy of 1 25m The MXF100 provides a flexible programmable platform to suit many different risks and can be easily integrated into the overall fire protection systems The main features of the system are Automatic detection and full recovery from sensor cable break Safe Class 3A laser operation Continuous live assessment of the develooment of fires Wide range of programmable te2. non condensing Electromagnetic Compatibility EMC Assessed for Immunity to EN 50082 1 and EN 50130 4 Assessed for Emissions to EN 50081 1 Fibre Optic Cable Product Code Operating Temperature MXF SL Thermoplastic 516 016 112 20 C to 70 C MXF SS Stainless Steel 516 016 113 40 C to 90 C Range of cable mounting accessories see User Manual Note Can be operated outside this temperature range using IP66 enclosure with thermal management unit The right is reserved to modify or withdraw any product or service without notice Technical Information Sheet PSF111U Issue 2 www tepg com Thorn Security Ltd 2000
3. 1 25metres PROGRAMMABLE RELAY 22 zonal relays ensure that the system can provide sufficient alarm notifications CONTACTS typically directly to any Fire Alarm Control Panel 2 relay contacts are reserved for system and sensor fault MODBUS OUTPUT PORT Permits connection of the system to any PLC programmable logic controller or DCS distributed control system using industry standard communications thereby providing a very flexible system topology HIGH SYSTEM INTEGRITY The system can be set to operate in either single ended or loop mode without any additional costly hardware The system continuously monitors the integrity of the loop and continues to operate in the event of a cable fault The system is designed with an automatic loop break recovery operation Nro aS aLa Moa Cable faults are detected to an accuracy of 1 25m The control system is ANALYSIS continuously monitoring and a full syntax of fault information is provided with the system n A a In the event of a cable failure where the laser light source may be exposed the laser JANE DENISE light is determined a safe source in accordance with IEC825 DIAGNOSTIC CAPABILITY Enables interrogation of the system to determine system status By using a remote PC with a dial up connection to the host PC on site it is possible for system to be accessed from a remote location to help assist with on line technical support MODEM IN
4. NES VARIABLE RATE OF RISE AN FIXED TEMPERATURE FUNGCHION MULTIPLE amp PROGRAMMABLE ALARM LEVELS PER FIRE DETECTION ZONE UNRIVALLED RESPONSE TIME MXF100 Control Unit Alarm information is obtained quickly from the powerful and BENEFITS to Ur mining the pro A singe cable length can be divided ini by giving increased system flexibili mum Variable rate of rise and fixed tem heat detector sensitivity which signal dependant on the fire ris intelligent MXF100 processor The control unit uses a laser Fi l light source to launch light signals into the optical fibre Please refer to fig 2 for Operating Principal diagram As e pulses travel down the fibre energy is lost through ae scattering A fraction of the scattered signal is retained within the fibre A portion of this is directed back along the l a Signal Data Optical fiore towards the laser source this signal is called back Processing acquisition Receiver scatter Part of the back scatter signal Raman Scattering is used to provide accurate remote temperature measurements Fig 2 MXF100 Operating Principle at hundreds of points along the fibre The MXF100 control unit is housed in a robust wall mounted cabinet with a style and livery matching that of the latest range of Minerva MX control panels it contains the MXF100 sensor cable analyser and provides local alarm and fault indications a PSM800 4A power supply module field terminals for co
5. TERFACE The Optical Fibre Sensor The MXF100 uses standard communications grade optical fibre of the 62 5 125 graded index multimode type The temperature range is predominantly a function of the coating used to protect the optical fibre as the fibre itself is well behaved over a temperature range from 50 C to approximately 300 C Coatings have been tested down to 190 C acrylate and up to 460 C metallic Optical fibre itself offers several advantages as a sensing medium The signals are immune to electromagnetic interference thereby ensuring integrity of readings from electrically noisy areas As no electrical current is used in the sensing fibre and the fibre is a relatively inert and dielectric non conducting medium it is safe technology to use in hazardous environments Optical Fibre Temperature Sensing Technology MXF100 Cable Options The fibre used in this system is based upon standard 62 5 125 fiore optic cable The cable has been further modified by adding a choice of two external sheaths which provide additional mechanical strength to the fibre Gel filled loose tube technology protects the fibre from mechanical and environmental damage whilst maintaining a low thermal mass for rapid response to temperature changes This temperature sensor cable is jacketed with a special flame retardant halogen free coating The Sensor Line MXF SL fibre optic cable is designed for distributed temperature and fire sensing applicati
6. e Stainless tube PVC Sheath 0 25mm Cladding of optical fibre 0 125mm Core of optical fibre p 0 0625mm Optical Fibre _ 3 270 Sensor Tube MXF SS Stainless Steel Cable as r l i l l l l l L Figure 4 Cable Options Optical Fibre Temperature Sensing Technology Standards and Approvals LPCB submitted The MXF100 system complies with a EMC Directive 89 336 EEC a Low Voltage Directive 72 2 EEC The MXF100 contains a Class 3a Laser product and complies with a BS7192 1989 a American National Standard Z136 2 1988 a International Electrotechnical Commission Standard 825 1990 For more information on this product please refer to the following manuals User Manual 120 415 55 Engineering manual EM14 Technical Information Product Code MXF100 Control Unit 516 016 111 Mechanical Dimensions mm 558 8 x 587 4 H x 119 1 D Weight 28 Kg Electrical Supply Voltage 18 32 Vdc Power Consumption 25W max Supply Current lt 1A Fuse Rating lt 2A anti surge Interface Options 2 off RS232 Ports Port 1 Direct PC Connection for continuous temperature profile displays MXF protocol Port 2 Modbus master port or future connection to FSI Relay Outputs 22 Programmable outputs SPDT 1A 24V dc Environmental Temperature Operating O C to 40 C Note Storage 40 C to 65 C Humidity O to 95 RH
7. mperature operating modes and alarm thresholds Up to 100 programmable alarm zones Unaffected by Electromagnetic Interference EMI Suitable for use in designated Hazardous Areas MXF Manager Software The MXF Manager Windows software is used as an interface to the M XF100 control unit By using this software it is possible to configure the M XF100 unit to suit the particular fire risk The system is password protected and can be set up to provide a continuous display of system status on a dedicated PC Figure 1 Temperature Profile amp Alarm Display pa ee ei eo ET i See SSS al VHE Tas A Tay a aa Ei j i i OE MSs AAA PEN PIET Se GR ee ee ee eo te Punt ee ee De eon eee ee ae ee a ey a aa dba din dii bib caa dbi Tih dda ee ii sss sie sm Cm Sm Um Cell ee ikea Figure 1 Illustrates the temperature profile display for the entire fibre length and also a numerical display for individual zonal temperatures Low thermal mass for rapid response to temperature Low smoke halogen free jacket with excellent flame retardancy Suitable for all indoor applications Stainless steel clad fibre optic cable suitable for all harsh area applications Strong lightweight and flexible Designed for ease of installation Optical Fibre Temperature Sensing Technology FEATURES DIRECT PC CONNECTION CONTINUOUS TEMPERATURE PROFILES PROGRAMMABLE NUMBER AND LENGTH OF FIRE DETECTION ZO
8. nnection to signalling relays and a termination box for the fibre optic splice joints to the sensing cable It requires externally mounted standby batteries System Architecture The MXF100 provides output options which operate concurrently to provide system design flexibility 22 programmable relays can be used to map out alarm zones into a fire panel either directly or via addressable interface modules such as the MX CIM800 Protocol definition data is given to enable the MXF100 to be connected via a PLC to a centralised control and monitor information centre e g SCADA Definition for a bespoke MXF protocol is also available to enable the development of alternative graphics display interfaces The full 200 zone capability of the system can be exploited using either the Modbus and MXF protocols Figure 3 shows typical system architecture Optical Fibre Temperature Sensing Technology EEE EEE EE ST USER Sensor Cable MXF100 i l M XF Protocol 24V H Psu Remote PC i Modbus Relays ADDRESSABLE RELAY INTERFACES FIRE ALARM PANEL I l L sci se Sl es Sea are SS Sms i se Se meh Ses Sl en eek S a Fig 3 Minerva Fireline M XF100 Typical System Layout alza ej oe ples Sale Loejo Verylong distance large areas can be monitored using a single length of heat UP TO 2Km sensing cable The hot spot identification on a 2 Km length of fibre optic sensing cable is to within
9. ons It is intended for use in areas such as equipment cabinets cable trays dry cable ducts etc ie in any situation where a flexible temperature sensor cable is required FEATURES INSENSITIVE TO EMI INTRINSICALLY SAFE SENSOR USES STANDARD GRADE COMMUNICATION FIBRE This cable is specifically designed for all indoor applications and is Suitable for some outdoor installations When used out of doors it should be suspended above the ground using for example a catenary wire or cable tray It will withstand occasional contacts with hydrocarbons such as kerosene but long term exposure should be avoided It should not be directly buried in the ground or installed in ducts that are susceptible to flooding Long term exposure to water should be avoided The SensorTube MXF SS fibre optic cable is particularly suitable for harsh industrial environments The fibre optic cable is supplied encased in a stainless steel capillary tube This sensor cable is designed for use in heavy industrial offshore and petrochemical applications BENEFITS The sensing element is suitable for hazar Some application areas may require r These transit cables can be a cations grad optical fibre 62 od f fo H o E e7 1 amp CONSTRUCTION poo c Optical fibre in gel filled tube Aramid fibres for strength Outer jacket 3 6mm diameter _ 4 2mm SensorLine MXF SL Thermoplastic Cabl
Download Pdf Manuals
Related Search