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Analox 9000 F1 Flammable Sensor
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1. looking after the air YOU breathe A Pellister Sp Pink Yellow C White Oxygen Toxic Pink Bas Yellow White Type Insert Certification Protection Threads Weight Material Lock Screw Order Code B B 33mm WW Insert End Lock Screw Body 33mm 007 081 350 25 206 007 067 2 200 ooreo 5610 arema 001 281 CATGGSA 2 5 335 0012271 58 25 001 41 100 2v 100mA 001 011 SEMIVS _ 001 801 CATSO0A 2 00 001 171 CAT170A 2v 175mA F1 Gas Sensor Replaceable ATEX Cert No 1176 EExd T6 T85 C Tamb 20 to 35 Il2GD Ex T85 C Db IP63 IECEx Cert No SIR 06 0016x Exd IIC T6 Gb IP63 water shield IP65 A 20mm 1 5 pitch options available B 33 3mm 1 25 pitch 165gms Stainless Steel 316 S16 3mm 1 5mm Allen key End Cap replacement 001 003 C765A 045D23C Document Ref GDS 860 01 December 2010 Page 15 Analox 9000 F1 Flammable Sensor User Manual 10 Replacing the Sensor Insert The expected operating life of most sensors varies However if the sensor is constantly exposed to high doses of its specific gas or gases to which it is cross sensitive then its life span will be reduced in proportion to the concentration exposure time It is a matter f
2. To maintain the certification only manufacturers supplied replacement parts should be used Caution the installation of this product must be carried out by suitably trained and qualified personnel only If in doubt please contact GDS Technologies Ltd www gds technologies co uk This apparatus has been produced for use in a potentially explosive atmospheres Before it is installed you must be aware of the requirements of IEC60079 0 2004 IEC60079 1 2003 IEC61241 0 2004 IEC61241 1 2004 Special conditions of use 1 A N O The unit will not be used as a safety related device When installed the 1 Gas Sensor shall be electrically bonded to earth Mechanical explosion protection shall be provided for the flying leads of the F1 Gas Sensor Before removing the end cap disconnect the power to the sensor and wait 3 minutes allowing for the sensor elements to cool The sensor end cap must be fully screwed into the body and the lock screw firmly tightened Maintenance Inspection of the sinter disc is to be carried out at 6 monthly intervals to ensure it is clear and dust free The apparatus shall be electrically bonded to earth the sensor body mounting thread must be fully engaged into an appropriate junction box suitably certified junction box must be used wirh the F1 sensor Insert replacement may be achieved by use of long nosed pliers
3. 0 85 0 25 4 1 40 0 5 2 2 20 0 4 2 5 2 20 0 4 2 5 2 10 0 6 1 67 Propylene 2 40 0 7 1 43 Styrene Monomer 1 1 0 3 9 99 Toluene 1 20 0 4 2 5 Benzene 1 30 0 35 2 86 Iso Butyl Methyl Ketone 1 20 0 25 4 ANALOX looking after the air YOU breathe Document Ref GDS 860 07 December 2010 Page 31
4. 19 January 2006 514142364 The introduction of Variation 1 2 9 December 2008 R51L19300A This Issue covers the following changes All previously issued certification was rationalised into a single certificate Issue 2 Issues D to L referenced above are anly intended to reflect the history of the previous certification and have not been issued as documents in this format introduction of Variation 2 u 23 30 December 2008 R51L19028A The introduction of Variation 3 SS 4 18 September 2009 R20978A The introduction of Variation 4 This certificata and its schacules may onb be ena UE eM Sira Certification Service Aako Lana Eccleston Chester JN England Form 9400 Issued Aud neh 0 681330 Document Ref GDS 860 07 December 2010 ANALOX Page 21 looking after the air YOU breathe 15 15 1 15 2 15 3 16 1 17 1 17 2 17 3 Analox 9000 F1 Flammable Sensor User Manual sira CERTIFICATION SCHEDULE EC TYPE EXAMINATION CERTIFICATE Sira 1176 Issue 4 SPECIAL CONDITIONS FOR SAFE USE denoted by after the certificate number The Fi Gas Sensor shall not be used as Safety Related Devices in accordance with Directive 94 9 EC When installed the Fl Gas Sensor shall be electrically bonded to earth Mechanical and explosion protection shall be provided for the leads of the F1 Gas Sensor ESSENTIAL HEALTH AN
5. 50019 2000 and EN 50281 1 1 1998 were replaced those currently listed the markings in section 12 were updated accordingly li A condition of certification relevant to marking was removed DESCRIPTIVE DOCUMENTS Drawings Refer to Certificate Annexe Associated Sira Reports and Certificate History 0 24 October 2003 R51AB269A The release of the prime certificate 9 December 2008 R51L19300A This Issue covers the following changes All previously issued certification was rationalised into a single certificate Issue 1 Issue 0 referenced above is only intended to reflect the history of the previous certification and has not been issued as a document in this format The introduction of Variation 1 15 September 2010 R22124A 00 The introduction of Variation 2 SPECIAL CONDITIONS FOR SAFE USE denoted by X after the certificate number The Range 9000 Enclosure shall not be used as a Safety Related Device in accordance with Directive 94 9 EC ESSENTIAL HEALTH AND SAFETY REQUIREMENTS OF ANNEX II EHSRs The relevant EHSRs that are not addressed by the standards listed in this certificate have been identified and individually assessed in the reports listed in Section 14 2 This certificate and its schedules may only be BTE Sira Certification Service Lane Eccleston Chester CH4 SJN England Tel 44 0 1244 670900 Page 2 of 3 Fax 4 44 0 1244 681330 ee Emal
6. looking after the air YOU breathe Analox 9000 F1 Flammable Sensor User Manual IECEx Certificate of Conformity Cantica Nu 08 af 602 1216 Page 3 4 Schedule EQUIPMENT Egulirant and zysfems Mil are tht The Cas Sensor is designed to montar Tammanie gases in ar 11 n shape and has two part aaneiructon compismg amp fram ard ar end Cap not of which from Tha ond screws into fe main body and has 250 um sinbar fused into its wals This crier the mu nmcunding atmosphens eter the derea Eat the presence of fammable gas can be detecled darling elemenis within ihe main body The pami hak power dissipation 2 48 WW The rear end of the body imn filed with setting compound amp irough which The equipment wiring passes H Blac male M20 x 1 5 Thrasd Feem allow tha Gas Senac 20 ba filed To an assoctateci enclosure CONDITIONS OF YES shown below Wher installed tha FT Gas Sansor shal eleciricaly bonded t gant Mechanical and explosion prodeciion shai povided for ine fing foods of the F Gas Sensor ALOX looking after the air YOU breathe Document Ref GDS 860 07 December 2010
7. 2007 1 06 Dale o Epua 2005 12 10 Page 1 4 GOS Technelegies Limited Fusion Point Lane Leeds LS25 2654 United Kingdom Elactreal Apperatua F1 Gas Senger Gronn acon Type of Protection Flameproof and Dust Marking Ex d lic T Ex tD IPOX 5 20 C to 25 C for aun on behalf af fe D amp Stuboings Cartrlicatinn Born Prior Certification Manager Signelure Hor ponted version Data 1 THis Cerificate ard schedule may on be reproduced in 2 This certificate transferable ana remains the property of the body 3 Tha Status and authendicity af thie may be by wating ihe Official IECEx Waharla Lac mud Dy Gertihaabion Senoce Lane ener SI ra CM SUN Unised Kingdam CERTIFICATION Document Ref GDS 860 01 December 2010 ANALOX Page 23 looking after the air YOU breathe Analox 9000 F1 Flammable Sensor User Manual Certificate of Conformity C rthzata Ac ECEx SIR DE Date of lotus 208 12 10 1 Page 2 of 4 Marcfaciumr GBS Technoeloglas Limited Ash Lara Mar aciurig This canrfi cae Ra up mat sample i reprae we ot prodaczno waa RRA Tasa and found te campy with the LEC balow aevi hab iha Quality wyssem nea
8. bursts of 8 10 and 80 methane in air produce no ill effects Prolonged exposure can result in zero drift which may be reversed by operating for a short period in clean air Exposure to 4096 concentration for longer periods will begin to destroy the detector surface altering the Zero point and reducing the sensitivity Whenever a sensor is exposed to high concentrations of combustible gas the calibration should be rechecked as soon as possible 2 The performance of the sensors may be temporarily impaired by operation in the presence of certain volatile substances containing halogens or sulphur The sensors may recover after a short period of operation in clean air Whenever the substance produces a permanent effect on the catalyst resulting in a large reduction in sensitivity the sensor is said to be Poisoned Typical substances which can cause poisoning are silicon oils and grease anti knock petrol additives and phosphate esters Activated carbon filters will provide adequate protection from poisoning in most cases Notwithstanding the above comments the combustible gas sensors have an inherently long life Although the sensors respond to most combustible gases the signals produced vary in magnitude depending on the actual gas to which the sensor is exposed The sensors should normally be calibrated using 50 LEL methane i e 2 5 methane in air NOTE When the sensors are used to detect a different gas than that used for calibration th
9. gt ZANALO looking after the air YOU breathe Analox 9000 F1 Flammable Sensor User Manual Analox Sensor Technology Ltd 15 Ellerbeck Court Stokesley Business Park North Yorkshire TS9 5PT UK T 44 0 1642 711400 F 44 0 1642 713900 W www analox net E info analox net 9000 F1 Flammable Sensor User Manual List of Contents gt Document Ref 605 860 071 December 2010 BU MUR CN 6 miele fei 7 E 9 Sensor Signal TR T 10 1118 ae ee perd partu 11 Sensor Physical Detalls 12 Do 13 Sensor NStala a 14 Hazardous Area Installation 15 Replacing the Sensor 16 nee eee eee eee EUMDEM En 18 55012 215 19 MMC THEN E E E AE E ET ETN 20 ete stem 30 EES E S E 31 looking after the air YOU breathe Page 4 ANALOX Analox
10. intoffsiracertificalion com Document Ref GDS 860 01 December 2010 Web ve giracertification com Page 28 ANALOX looking after the air YOU breathe Analox 9000 F1 Flammable Sensor User Manual sira CERTIFICATION SCHEDULE EC TYPE EXAMINATION CERTIFICATE Sira O3ATEX1168X Issue 2 17 CONDITIONS OF CERTIFICATION 17 1 The use of this certificate is subject to the Regulations Applicable to Holders of Sira Certificates 17 2 Holders of EC type examination certificates are required to comply with the production control requirements defined Article 8 of directive 94 8 EC 17 3 Range 9000 Enclosure covered by this certificate incorporate previously certified devices it is therefore the responsibility of the manufacturer to continually monitor the status of the certification associated with these devices and the manufacturer shall inform Sira of any modifications of the devices that may impinge upon the explosion safety design of the Range 9000 Enclosure This certificate and its schedules may only reproduced in its entirety and without change Si ra Ce rtification Service Rake Lane Eccleston Chester amp JN England Tel 44 D 1244 670900 Page 3 of 3 3 Fax 44 0 1244 881330 Email infaisiracertification com Web iit acer con Document Ref GDS 860 07 December 2010 ANALOX Page 29 looking after the air YOU breathe 9000 F1 Flammable Sensor U
11. limits These levels are known as the Lower Explosive L E L and the Upper Explosive Limit U E L Typical L E L figures for some common explosive gases are as follows Methane Natural Gas 5 95 Hydrogen 4 96 Air Ammonia 16 84 Air Ethylene 3 97 Air Butane 1 9 98 1 Air Propane 2 1 97 9 Air 3 2 Ifthe gas concentration is below the L E L then combustion cannot take place due to insufficient gas and if above U E L level there will be insufficient Oxygen present to sustain combustion Document Ref GDS 860 07 December 2010 AN ALOX Page 9 looking after the air YOU breathe 4 4 1 4 2 4 3 Document Ref GDS 860 07 December 2010 Analox 9000 F1 Flammable Sensor User Manual Sensor Signal Cables All the Analox flammable gas sensors require a three core cable between the sensor and the measuring instrument Because of the relatively heavy current demands of the pellistor type of sensors the connecting cables must be chosen with care For example Pellistors of the CAT300 type require an operating potential at the Sensor of 2 00 volts DC at a current of 300 milliamps When a current of this magnitude is passed along signal cables any significant resistance in the cables will result in a drop in voltage along the cables As an example Assume a cable run of 100 metres is required between the monitoring instrument and the sensor and the cross sectional area of the cable chos
12. the above installation the 1 15 volt drop across the cable could be compensated by adjusting the monitoring instrument drive voltage to 3 15 volts It is not necessary to carry out all of these calculations every time an installation is done correct operation of the sensor can be achieved by measuring the voltage AT THE SENSOR JUNCTION BOX TERMINALS A further point which is often overlooked is that the resistance of copper cable has a temperature co efficient The effect of this variation in resistance due to temperature changes can be significant on very long cable runs particularly if the cable has a small cross sectional area and is subject to large variations in temperature The measuring instrument is unable to distinguish between a change in cable resistance and a genuine gas signal Copper cable resistance 15 normally quoted at 20 C and will vary by approximately 0 4 per degree C as the temperature changes above and below this value Using the above cable installation as an example the total loop resistance was calculated to be 3 82 Ohms at 20 C If the temperature of the cable drops to 0 C then the resistance will change to 3 80 Ohms At first sight this may not seem significant but could result in drift of the ZERO reading on the monitoring instrument Page 10 ANALOX looking after the air YOU breathe 9000 F1 Flammable Sensor User Manual 5 Instrument Calibration 5 1 There is some confusion over what is me
13. 9000 F1 Flammable Sensor User Manual Document Ref GDS 860 07 December 2010 AN ALOX Page 5 looking after the air YOU breathe 9000 F1 Flammable Sensor User Manual 1 Introduction The ANALOX 9000 F1 Range of sensors are designed to detect Flammable gas mainly methane CH4 in ambient air monitoring applications The model is listed below Model 9000 F1 which is of the Explosion proof type The Model 9000 F1 consists of a 316 stainless steel sensor unit certified EExd T6 II2GD mounted in a glass reinforced polyester fire retardant junction box which 15 certified EExe T6 12 0 The Model 9000 F1 unit junction box includes 1 x 20mm threaded cable gland entry A Certified blanking plug is supplied with the unit The Pellistor inserts used in the 9000 sensors are of the poison resistant variety The sensor can be supplied with either CAT300 CAT170 and CAT335 type Pellistor inserts Operating currents are 300 mA 2 0 volts 170 mA 2 0 volts and 335mA 2 5 volts respectively CAT300 have a larger active element and is slightly more resistant to poisoning than the CAT 170 but if the area to be monitored is unlikely to contain poisoning substances then other considerations may determine which Pellistors are chosen Document Ref GDS 860 01 December 2010 Page 6 ANALOX looking after the air YOU breathe 9000 F1 Flammable Sensor User Manual 2 Principle of Operation 2 1 The elemen
14. D SAFETY REQUIREMENTS OF ANNEX II EHSRs The relevant EHSRs that are not addressed by the standards listed in this certificate have been identified and individually assessed in the reports lisbed in Sectian 14 2 CONDITIONS OF CERTIFICATION The use of this certificate is subject ta the Regulations Applicable to Holders of Sira Certificates Holders of EC type examination certificates are required to comply with the production control requirements defined Article 8 of directive 94 9 EC The manufacturer shall substitute on the approved label affixed to the apparatus the new name and address for the old name and address This certificate and its schedules may only be reproduced in its entirety and without change Sira Gertification Service Rake Lana Eccleston Chester SJH England 44 0 1244 670900 Fas Page 3 of 3 Fax 44 0 1244 631330 ous Email cam Document Ref GDS 860 01 December 2010 Page 22 Wal en looking after the air YOU breathe Analox 9000 F1 Flammable Sensor User Manual IECEx Certificate of Conformity INTERNATIONAL ELECTROTECHNICAL COMMISSION IEC Certification Scheme for Explosive Atmospheres for rules deials of fie IEGEXx ven www ico com Cartifinate IECEx SIR OB COH EX issue 1 Certificate Issue 1 2000 12 V 10 Status Currant zaia O
15. Page 25 Analox 9000 F1 Flammable Sensor User Manual Certificate of Conformity Mic 06 DOORX Crane of Ipsug 12 10 1 Page 4 of 4 DETAILS OF CERTIFICATE CHANGES Far muss 1 and above 1 fig laga the folowing change 1 1 DIBCOZC me pw ching GOS Tecteomgies DG Tecnnacogies Lied Talingan Lane Fusion Poort Sv dinge Lane Garforth 2525 aii UK 1826 20 Document Ref GDS 860 01 December 2010 Page 26 looking after the air YOU breathe Analox 9000 F1 Flammable Sensor User Manual sira CERTIFICATION 1 TYPE EXAMINATION CERTIFICATE 2 Equipment intended for use in Potentially Explosive Atmospheres Directive 94 9 3 Certificate Number Sira 1168 Issue 2 4 Equipment Range 9000 Enclosure 5 Applicant GDS Technologies Limited 6 Address Fusion Point Ash Lane Garforth Leeds L525 2 UK 7 This equipment and any acceptable variation thereto is specified in the schedule to this certificate and the documents therein referred to 8 Sira Certification Service notified body number 0518 in accordance with Article 9 of Directive 94 9 EC of 23 March 1994 certifies that this equipment has been found to comply with the Essential Health and Safety Requirements relating to the design and construction of equi
16. SJN England Page 1 of 3 Form 9400 Issue 1 Tei 45 0 1244 570900 Fax 44 0 1244 681330 Email jnfoffsiracerlification com Web Document Ref GDS 860 01 December 2010 Page 27 looking after the air YOU breathe 13 14 14 1 14 2 15 15 1 16 Issue Date Report no Comment Analox 9000 F1 Flammable Sensor User Manual sira CERTIFICATION SCHEDULE EC TYPE EXAMINATION CERTIFICATE Sira 1168 Issue 2 DESCRIPTION OF EQUIPMENT The Range 9000 Enclosure comprises an F1 Gas Sensor mounted via a cable entry point to a Range 9000 increased safety junction box manufactured by Flameproof Electrical Enclosures Ltd The Range 9000 junction box comprises a glass reinforced polyester enclosure with a hinged lid secured by four M5 x 22 socket head cap screws They are fitted with either an M6 internal external earth assembly manufactured from brass or an internal earth continuity plate Variation 1 This variation introduced the following change i The change of the Applicant s address from Swillington Lane Swillington Leeds 526 6BZ to Fusion Point Ash Lane Garforth Leeds 1525 2GA Variation 2 This variation introduced the following change i Following appropriate re assessment to demonstrate compliance with the requirements of the later standards the documents originally listed in section 9 EM 50014 1997 Amendments Ai amp A2 EN 50018 2000 Amendment A1
17. ant by the sensitivity of instruments used to measure the concentrations of combustible gas Ideally all units employing catalytic combustion as the measuring principle should be calibrated in terms of percentage of potential combustibility where 100 scale reading represents an ignitable mixture for a particular Gas Air mixture 5 2 Itis unfortunate that the sensing elements are not equally responsive to all combustible gas air mixtures and although the sensitivity to a wide range of gases is similar to within a few percent of L E L and for all practical purposes the inaccuracies may be ignored it may be desirable in certain cases to make allowances for these variations 5 3 Itis therefore common practice to calibrate units of this type over the range 0 100 L E L where 10096 scale is equal to the actual percent concentration of the calibration gas at the Lower Explosive Limit For example an instrument calibrated 0 100 L E L methane would indicate 10096 scale at 5 0 gas concentration and one calibrated for Butane would indicate 10096 scale at 1 9 gas concentration Document Ref GDS 860 01 December 2010 ANALOX Page 11 looking after the air YOU breathe Analox 9000 F1 Flammable Sensor User Manual 6 Sensor Physical Details 15700 Analox 9000 F1 Series Flammable Gas Sensor Document Ref GDS 860 07 December 2010 Page 12 ANALOX looking after the air YOU breathe Analox 9000 F1 Flammable Sensor User Manua
18. at the presence of the flammable gas can be detected by various sensing elements contained within the main body The sensor has a maximum power dissipation of 2 48 W The rear end of the main body is filled with a setting compound through which the equipment wiring passes it also has a male 20 1 5 thread form that allows the Fl Gas Sensor to be fitted to an associated enclosure Variation 1 This variation introduced the following change The introductlon af minor dimensional changes relating to the gas sensor extended body Variation 2 This variation introduced the folowing change The change of the Applicant s address from Swillington Lane Swillington Leeds L526 6BZ Fusion Point Ash Lane Garforth Leeds 1525 ZGA Variation 3 This variation introduced the following change Following appropriate re assessment to demonstrate compliance with the requirements of the EN 80079 series of standards the documents originally listed in section 9 EN 50014 1997 amendments 1 and 2 EN 50018 2000 and EN 50281 1 1 1998 were replaced by those currently listed the markings in section 12 were updated accordingly Variation 4 This variation introduced the following change i The recognition of previously assessed updated drawings 14 DESCRIPTIVE DOCUMENTS 141 Drawings Refer to Certiflcate Annexe 14 2 Associated Sira Reports and Certificate History Isue Date o 24 October 7003 _ 251882694 The release of the prime certificate
19. ective apply to the manufacture and supply of Chis equipment 12 The marking of the equipment shall include the following 260 Ex d IC T6 Gb 20 CsTas4 35 C Ex th Db IPEX 4 T5 Gb 20 lt lt 50 Ex T100 C Db IP6X Ex d T4 Gb 20 CsTas 85 C Ex tb T135 C Db T3 Gb 20 CsTas120 C Ex tb T200 C Do Project Number 20978 C Index 14 This certificate and Es schedules may aniy be reproduced im Its entirety and without change Page 1 of 3 Form 9400 Issue 1 Document Ref GDS 860 01 December 2010 Page 20 Stubbings BA MIET Certification Manager Sira Certification Service Rake Lama Eoclesion Chester CHS SJM England Tal 0 1244 670900 Faki 44 0 1244 881330 Email iMod Web wwa sirgccrilicalion com ANALOX looking after the air YOU breathe Analox 9000 F1 Flammable Sensor User Manual sira CERTIFICATION SCHEDULE EC TYPE EXAMINATION CERTIFICATE Sira Q3ATEX1176X Issue 4 13 DESCRIPTION OF EQUIPMENT The Gas Sensor is designed Lo monitor flammable gases in air It is cylindrical in shape and has two part construction comprising a main body and end cap both of which are manufactured from Stainless steel The end cap screws into the main body and has a 250 um sinter fused Into its walls This sinter allows the surrounding atmosphere to enter the sensor so th
20. en a correction factor should be applied to the readings obtained A table showing conversion factors for various gases is shown in Appendix A of this manual See also Instrument Calibration section WARNING When a pellistor type sensor is exposed to concentrations of flammable gas greater than 10096 LEL 5 methane in air there eventually comes a point at Document Ref GDS 860 01 December 2010 ANALOX Page 7 looking after the air YOU breathe Document Ref GDS 860 07 December 2010 Page 8 Analox 9000 F1 Flammable Sensor User Manual which the signal output from the sensor DECREASES as a result of an INCREASING concentration of the gas This is caused by the flammable gas displacing oxygen in the sample and gradually inhibiting the normal oxidation process at the detecting element Most monitoring instruments provide an OVER RANGE indication to inform the user of this condition See also L E L and U E L section ANALOX looking after the air YOU breathe 9000 F1 Flammable Sensor User Manual 3 L E L and U EL 3 1 The above principle of operation is only valid where the gas mixture to be sensed contains oxygen It is therefore suitable for detection of leakages of gases atmospheric surroundings where it is important to know the level of concentration well before a hazardous situation arises Flammable gas mixtures are only ignitable between certain fairly clear but experimentally defined
21. en is 1 00mm2 Most manufacturers quote the resistance of this cable to be 19 1 Ohms per kilometre therefore in this case a 100 metre length will have a resistance of 19 1 10 1 91 Ohms Bearing in mind that as far as the loop current is concerned the actual conductor length is 200 metres 100m to the sensor and 100m back again the total cable resistance in this case is 3 82 Ohms Using Ohm s law to calculate the voltage drop across the entire cable Voltage Drop Current x Resistance Where Voltage is in Volts Currentis in Amps amp Resistance is in Ohms Voltage Drop 0 3 x 3 82 1 15 Volts This means that if the monitoring instrument supplies a drive voltage of 2 00 volts then the sensor will only have 0 85 Volts applied to it 2 00v 1 15v 0 85v The pellistor sensor will NOT operate correctly in this condition NOTE Although the ANALOX 9000 F1 sensors use a 3 wire connecting cable only two of the wires carry the sensor excitation current The third wire is connected to the centre tap of the Bridge configuration It only carries a signal voltage at very low current and may therefore be ignored as far as resistance effects are concerned Most monitoring instruments designed to operate with flammable gas detectors of the pellistor type have the facility for compensating within limits for this voltage drop The ANALOX range of monitors GDS 404 allow the drive voltage to be adjusted up to about 3 8 volts So in the case of
22. l 7 Electrical Connections SENSOR 3 WIRE Gas Detector Detector Head Control Unit mV ipelisigrs or 3 wire CV Analox 9000 F1 Series Flammable Sensor Document Ref GDS 860 01 December 2010 ANALOX Page 13 looking after the air YOU breathe 8 8 1 8 2 8 3 8 4 Analox 9000 F1 Flammable Sensor User Manual Sensor Installation Care should be exercised during installation not to damage the sintered element on the front surface of the device IT IS PARTICULARLY IMPORTANT THAT THEY ARE NOT EXPOSED TO SILICON BASED SUBSTANCES OR HALOGENS either during installation or in their normal operating condition This could lead to the sensors being poisoned as described above in section 2 of this manual The type of gas to be detected determines in general the physical location of the sensor Whereas a gas that is heavier than air will require a low sensor mounting position a lighter than air gas will necessitate an elevated mounting point Consideration should be given to those areas where it is anticipated that leakage may occur For example in the vicinity of valves pipe flanges compressors etc and also to the possibility of pockets of gas collecting in the event of a leak In this respect heavier than air gases for example propane or butane may tend to accumulate in floor ducts pits etc and ventilation should be provided for these areas as a normal precaution Lighter than air gases e g methane or hydrogen wi
23. ling to Ex prodocis by this oartricaia was and found comply with the IECEx fequremeni This granted io the conditions sat nut in Rules IECEx 02 and Cpanasonal Document z amp amended STAND ARS The any amp cephabla vanaebas apache in fe ol Sha and Fe erie dacumarnis was Tound to wits ma falkewing IEC BOOTB D 2004 apparatus tor gas ateospharas lt Paci tT Genaral mquremen Edgar 4o IEC 60075 4 2003 Eisarcs apparatus Past 1 Fiareepeno encieaune cf 1241 0 2004 Sor use te presence of combushbbis dust 0 General 1 81241 2004 Eladnca for in Th prirsunca of dui Edson 1 ancisunas fn Caio dons mar ex cam COMA m choca and naerforzamog amor mang fosg inciudad im fa Sinecards abo TEST amp AS SPSSAEFNT REPORTS sampler af Joe equa hes successfully met fo and ipsi requis as mcordpd 7 Teal Fieri CA SR Ex TRO MEAN GaSe DEOR Document Ref GDS 860 01 December 2010 Page 24
24. ll tend to accumulate between ceiling joists in roof spaces etc and similar consideration should be given to adequate ventilation Additionally the effects of any ventilation must be considered in the siting of gas sensors and it may be prudent to mount sensors in air extraction ducts However excessive velocities can affect the sensors and it may be necessary to provide a degree of draught protection TABLE 1 below shows examples of molecular weights of some common flammable gases and groups them in categories according to their weight relative to air Lighter than Air Heavier than Air Hydrogen 2 0 Methane 16 0 Ethane 30 1 Hydrogen Sulphide Ammonia 17 0 Carbon Monoxide 28 0 Butane 58 1 Propane Ethylene 28 0 Acetylene 26 0 Pentane 72 2 Toluene Hexane 86 2 Heptane TABLE 1 Relative Molecular weight of common gases NOTE AIR 29 The flammable sensors should be mounted with the sinter facing downward whether it is mounted high or low Document Ref GDS 860 07 December 2010 Page 14 ANALOX looking after the air YOU breathe 34 0 44 1 92 1 100 2 5 9001 Analox 9000 F1 Flammable Sensor User Manual 9 Hazardous Area Installation Op ATEX NOTIFIED GDS Technologies Ltd Fusion Point Ash Lane DS Garforth Leeds LS25 2GA Tel 44 0 113 286 0166 Fax 44 0 113 287 8178 www gds technologies co uk F1 GAS DETECTOR HAZARDOUS AREA Product Information CONDITIONS FOR SAFE USE 1
25. or the user to decide whether the sensor is replaced automatically at a pre determined interval or if it is left until a time when it is no longer possible to calibrate This will depend on the nature of the application 10 1 Sensor Insert Replacement Procedure 1 Isolate the sensor from its power supply and wait 3 minutes before proceeding to allow any power stored in the sensor to dissipate 2 Remove the sensor head grub screw using a 1 5mm Allen key 4 Remove the white sensor mount from the sensor insert and then remove the sensor insert by gently pulling it from the housing Document Ref GDS 860 01 December 2010 Page 16 ANALOX looking after the air YOU breathe Analox 9000 F1 Flammable Sensor User Manual 5 Fit the new sensor insert into the housing Note the orientation of the sensor connector pins and housing connector sockets the cell can only be fitted in the _correct orientation Sensor Pins Housing Sockets 6 Refit the white sensor mount 7 Refit the sensor head cap 8 Refit the sensor head grub screw 9 Re apply power to the sensor Allow approximately one hour for the new sensor to settle and then carry out the calibration procedure 10 2 Disposal of Discarded Sensor When the life of the sensor has expired or otherwise damaged it must be disposed of safely in accordance with local regulations According to WEEE regulation this electronic product can not be placed in household
26. pment intended for use in potentially explosive atmospheres given in Annex II to the Directive The examination and test results are recorded in the confidential reports listed in Section 14 7 9 Compliance with the Essential Health and Safety Requirements with the exception of those listed in the schedule to this certificate has been assured by compliance with the following documents B UO0 79 0 2006 EN 60079 1 2007 EN 60079 7 2003 51741 D 200n 51241 1 2004 10 If the sign X is placed after the certificate number it indicates that the equipment is subject to special conditions for safe use specified in the schedule to this certificate 11 This type examination certificate relates only to the design and construction of the specified equipment If applicable further requirements of this Directive apply to the manufacture and supply of this equipment 12 The marking of the equipment shall include the following 1260 Ex d e HC T5 Ex d e IIC T de 4 tD A21 85 Ex A21 T100 C IP6X tD A21 T135 C tD A21 T200 C IP6x 20 lt Ta 35 20 lt 50 20 Ta 85 20 s Ta 120 C Project Number 22124 C Ellaby Index 14 Certification Officer This certificate and its schedules may only be reproduced its entirety and without change Sira Certification Service Rake Lane Eccleston Chester GH4
27. se Potentially Explosive Atmospheres Directive 94 9 EC 3 Certificate Number 11768 4 Equipment 1 Gas Sensor 5 Applicant GDS Technologies Limited 6 Address Fusian Point Ash Lane Garforth Leeds 1525 2GA Uk This equipment and any acceptable variation thereto is specified the schedule to this certificate and the documents therein referred to Sira Certification Service notified body number 0518 in accordance with Article 9 of Directive O4 9 EC of 23 March 1994 certifies that this equipment has been found to camply with the Essential Health and Safety Requirements relating to the design and construction of equipment intended for use in potentially explosive atmospheres given in Annex II to the Directive The examination and test results are recorded in the confidential reports listed in Section 14 2 5 Compliance with the Essential Health and Safety Requirements with the exception of those listed in the schedule to this certificate has been assured by compliance with the following documents EN amp D079 0 2008 60079 1 2007 61241 1 2004 10 If the sign X is placed after the certificate number it Indicates that the equipment Is subject ta special conditions for safe use specified in the schedule to this certificate 11 This type examination certificate relates only to the design and construction of the specified equipment If applicable further requirements of this Dir
28. ser Manual 14 Disposal According to WEEE regulation this electronic product can not be placed in household waste bins Please check local regulations for information on the disposal of electronic products in your area Document Ref GDS 860 07 December 2010 Page 30 ANALOX looking after the air YOU breathe 9000 F1 Flammable Sensor User Manual 15 Appendix A feature of the pellistor combustible gas detectors is the almost universal response to LEL of hydrocarbons Almost all detectable gases produce a similar output at LEL This table lists the theoretical factors by which the signal with a Calibration gas should be multiplied to give the equivalent signal for other gases LEL CENELEC Relative Response with Gain Gas Vapour Standards respect to Methane Adjustment Acetic Acid 5 40 0 2 5 Acetone 2 60 0 35 2 86 Ammonia 15 0 65 1 54 Butyl Acetate 1 40 0 3 3 33 Cyclo hexane 1 30 0 45 2 22 Cyclo pentane 1 40 0 5 2 Decane 0 75 0 2 5 Dioxane 2 00 0 5 2 Ethane 3 00 0 85 1 18 Ethanol 3 30 0 45 2 22 Ethyl Acetate 2 20 0 35 2 86 Ethylene 2 10 0 65 1 54 Hydrogen 4 00 0 95 1 05 Iso Butane 1 80 0 55 1 82 Iso butyl Alcohol 1 70 0 3 3 33 Iso Octane 0 9596 0 35 2 86 Iso Pentane 1 40 0 45 2 22 Iso Propyl Alcahol IPA 2 20 0 35 2 86 Methane 5 1 1 Methanol 6 70 0 7 1 43 Methyl Ethyl Ketone MEK 1 90 0 35 2 86 n Butane 1 80 0 55 1 82 n Heptane 1 05 0 4 2 5 1 02 0 45 2 22
29. ts used in these sensors are of the Catalytic Pellistor type and are sensitive to most common combustible gases and vapours 2 2 single sensor assembly may therefore be used to detect a wide range of these gases The devices are made from two coils of very fine platinum wire which are embedded in separate beads of alumina One device is the detector and the other is a temperature compensating element The detecting element is treated with a catalyst which promotes oxidation of the gas and the compensating element is treated with an oxidation inhibiting agent 2 3 The two elements are connected to the Instrument in a Half Bridge configuration and the excitation current passing through them raises their temperature to about 550 Deg C At this temperature the gas oxidises on the detector element and raises the temperature of the bead even further This alters the resistance of the detector bead and this change in resistance is measured by the monitor instrument and converted to produce a reading of the gas concentration on the Instrument display 2 4 The output of the device is essentially linear for most gases up to high concentrations typically 100 LEL and the response time to 25 LEL is about 2 or 3 seconds Any pre filtering of the gas before it reaches the sensor may lengthen the response time If the sensors are required to operate in high gas concentrations for short periods it has been found that for periods up to about 2 minutes 10 second
30. waste bins Please check local regulations for information on the disposal of electronic products in your area Document Ref GDS 860 07 December 2010 ANALOX Page 17 looking after the air YOU breathe 9000 F1 Flammable Sensor User Manual 11 Specifications Classification Certified flameproof ATEX IECEx Gb CSA US Class 1 Groups A B C D High temperature versions 33mm 12 pth LockScrew 3mm immkey Housing Components Body ref 001 002 End cap ref 001 003 Ingress Protection IP63 water shield IP65 Approved sensor junction Type 9000 EExe II T6 boxes Material GRP IP66 Document Ref GDS 860 01 December 2010 18 ANALOX looking after the air YOU breathe 9000 F1 Flammable Sensor User Manual 12 Spares The following Replacement Sensor Inserts Accessories are available for the Analox 9000 F1 series of sensors Replacement Sensor Inserts Part Number 9100 1300 F1 CAT 300A Sensor Insert 300mA 9100 1170 F1 CAT 170A Sensor Insert 170mA 9100 1410 F1 CAT 335A Sensor Insert 335mA Accessories Part Number 6000 0048 F1 Sensor Flow Adaptor Document Ref GDS 860 01 December 2010 AN ALOX Page 19 looking after the air YOU breathe Analox 9000 F1 Flammable Sensor User Manual 13 Certification sira CERTIFICATION 4 1 TYPE EXAMINATION CERTIFICATE 2 Equipment intended for u
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