INSTALLATION AND OPERATING MANUAL

Transcription

1 INSTALLATION AND OPERATING MANUAL Réf.: REV A NPM32GB

2 GAS DETECTION We are delighed ha you have chosen an INDUSTRIAL SCIENTIFIC insrumen and would like o hank you for your choice. We have aken all he necessary measures o ensure ha your insrumen provides oal saisfacion. Now i is imporan o read his documen carefully. E X T E N T O F R E S P O N S I B I L I T Y * INDUSTRIAL SCIENTIFIC declines is responsibiliy owards any person for maerial damage, physical injury or deah resuling wholly or parly from inappropriae use, insallaion or sorage of is equipmen resuling from failure o observe insrucions and warnings and/or sandards and regulaions in force. * INDUSTRIAL SCIENTIFIC neiher suppors nor auhorises any company, physical or moral person o assume responsibiliy on behalf of INDUSTRIAL SCIENTIFIC, even if i is involved in he sale of INDUSTRIAL SCIENTIFIC producs. * INDUSTRIAL SCIENTIFIC canno be held responsible for direc or indirec damage or be required o pay direc or indirec compensaion resuling from he sale or use of any of is producs IF THESE PRODUCTS HAVE NOT BEEN DEFINED AND CHOSEN BY INDUSTRIAL SCIENTIFIC FOR THEIR SPECIFIC USE. C L A U S E S C O N C E R N I N G P R O P E R T Y * Drawings, plans, specificaions and informaion included in his documen conain confidenial informaion ha is he propery of INDUSTRIAL SCIENTIFIC * None of his informaion may be reproduced, copied, divulged or ranslaed, by physical, elecronic or any oher means, nor used as he basis for he manufacure or sale of INDUSTRIAL SCIENTIFIC equipmen or for any oher reasons wihou prior consen from INDUSTRIAL SCIENTIFIC W A R N I N G S * This documen is no conracually binding. In he ineress of is cusomers, INDUSTRIAL SCIENTIFIC reserves o modify he echnical specificaions of is equipmen wihou noice, in order o improve is performance. * READ THIS MANUAL CAREFULLY BEFORE FIRST USE OF THE EQUIPMENT: his manual mus be read by any person who is or will be responsible for using, mainaining or repairing his equipmen. * This equipmen will only provide he announced performance levels if i is used, mainained and repaired according o INDUSTRIAL SCIENTIFIC direcives, by INDUSTRIAL SCIENTIFIC personnel or by personnel approved by INDUSTRIAL SCIENTIFIC G U A R A N T E E 2 years guaranee in normal condiions of use on pars and echnical labour, reurn in our workshops, excluding consumables (sensors, filers, ec.) 3

3 Warnings This manual mus be read carefully before insalling and saring up and, in paricular, care mus be aken o observe he poins concerning he safey of he equipmen for inermediae or end users. Insallaion mus be performed and elecrical connecions made by qualified personnel in accordance wih he manufacurer's insrucions and wih he sandards specified by he relevan auhoriies. Failure o comply wih insrucions can have serious consequences for he safey of personnel. An absoluely rigorous approach is required, especially as concerns elecriciy and fiing (connecions and connecion o he power nework). Any modificaion of he equipmen or he use of pars no specified as original manufacurer's pars could lead o he cancellaion of any form of warrany. The daa logger is inended o be used for one or more applicaions specified in he echnical characerisics. The values indicaed mus no be exceeded in any circumsances. This is no a conracually binding documen. In he ineres of is cusomers, INDUSTRIAL SCIENTIFIC reserves he righ o make any changes, wihou noice, o he echnical characerisics of is equipmen in order o improve performance levels. Warning signs Proecive earh erminal Cauion: risk of elecric shocks Cauion (See accompanying documens) 4

4 Table of conens. PRESENTATION 7 2. TECHNICAL SPECIFICATIONS 8 2. Characerisics 8 3. INSTALLING THE CONTROL UNIT 9 3. Fixing he conrol uni Conrol uni elecrical connecions Proecive earh Power supply Common defec relay Measuremen channels (deecors) 4. INSTRUCTIONS FOR USE 4 4. Power on indicaions Momenarily display of a measuremen channel Cyclic display of he wo measuremen channels No measuremens displayed following a manual display No measuremen display afer a cyclic display Menus Displaying menus To validae a menu To exi from he menu (ESCAPE) To use he programming menu Iniializaion (INI) menu Calibraion menu (Access) Code menu Buzzer menu Cleaning Mainenance and servicing of he conrol uni Replacing fuses and references SCRAPPING OF MX SPARE PARTS CABLING EXAMPLES 39 5

5 8. SPECIAL SPECIFICATIONS FOR USE IN POTENTIALLY EXPLOSIVE ATMOSPHERES IN ACCORDANCE WITH EUROPEAN DIRECTIVE ATEX 94/9/EC. 4 Specificaions for mechanical and elecrical insallaion in Classified Areas. 4 Merological Specificaions 4 Connecing deecors oher han INDUSTRIAL SCIENTIFIC deecors o he MX32 device 43 Device ransfer curves in 0% o 00% LEL configuraion 43 Device ransfer curves in 0% o 30.0% OXYGEN configuraion 45 Power supply and load resisance characerisics 45 MARKING DECLARATION OF CONFORMITY 46 6

6 . Presenaion The MX32 conrol uni was designed for small unis for which i is no necessary o insall an elecrical cabine. The MX32 measuremen and alarm conrol uni can measure one or wo independen channels. Each channel is conneced o one or several sensors insalled on he premises o be moniored. The measuremen oupu from he sensor is displayed on he MX32 conrol uni and is compared wih alarm hresholds. If hresholds are exceeded, he conrol uni acivaes relays ha may be used o conrol exernal devices. The MX32 conrol uni is composed of he following elemens (see Figure ): power supply card (analog), display card (microprocessor), wall mouned box. Terminal block cover Analog card Microcompuer card Fron panel Cover Figure 7

7 2. Technical specificaions 2. Characerisics Meal wall mouned box Dimensions: Cable inles/oules: Proecion: Elecriciy power supply Power: Usage condiions Sorage emperaure : Ambien emperaure: Humidiy: 240 * 205 * 20 mm 6 grommes ype PG9, PG and PG3.5 IP65 5 or 230 V (programmed in facory) 24 V 30 VA -0 o -55 C -0 o +45 C 5% o 95% non condensing Audio power alarm = 50 cm : 72 o 74 db Audio power alarm = 00 cm : 66 o 68db Measuremen channels Number: or 2 Type: Wheasone bridge ype explosion meer, 4/20 ma wih 2 or 3 wires cable lengh: Wheasone bridge: 300 m max. per channel (.5 mm²) 4 / 20 ma: 2000 m max. per channel (.5 mm²) Measuremen: simulaneous measuremen of channels Measuremen ranges Type: independenly programmable for each channel Number of measuremen poins: coninuously programmable from 0 o 9999 Display Type: Unis name: Gas name: liquid crysal screen four 7-segmen digis, hree 4-segmen characers, picograms fixed or scrolling on each channel 4 ligh emiing diodes per channel definable for each channel 3 characers, modifiable by he user definable for each channel 3 characers, modifiable by he user 8

8 Alarms Type: Relay Type: Breaking capaciy 2 independen hresholds per channel definable by he user manual or auomaic clearing increasing or decreasing by programming display by red ligh relay oule per channel (alarm and 2) 2 independen alarm relays per channel common faul relay programmable posiive or negaive safey by he manufacurer on alarm relay posiive safey on faul de-energized or energized conac configurable on all relays using a jumper (example page 2 fig. 3 mark 7) 2 A 250 Vols 3. Insalling he conrol uni Please ensure you read he paragraph: Special Specificaions for use in Poenially Explosive Amospheres in Accordance wih European Direcive ATEX 94/9/EC Swich he elecriciy power supply off before saring o insall he conrol uni. 3. Fixing he conrol uni The MX32 conrol uni can be insalled in any room in which here is no explosive amosphere. I shall preferably be placed in a moniored locaion (securiy guard pos, conrol room, insrumenaion room, ec.). The conrol uni is designed o be used in pars of insallaions corresponding o overvolage caegory II and he degree of polluion. Allow room for he conrol uni cover o roae 90 owards he lef, so ha i can open compleely. The dimensions for he wall aachmen of he box are shown a he back of he box. Aachmen by 3 M 4 screws 9

9 3.2 Conrol uni elecrical connecions The elecrical connecion mus be made by a specialis and i shall saisfy regulaions in force. I shall comply wih sandard NF C Check he naure of he nework power and volage (he nework volage shall be equal o he volage marked on he conrol uni name plae. The volage is configured in he facory Proecive earh The conrol uni shall be conneced o a funcional earh. The erminal is marked by he following symbol: (See Fig. 2, mark 5) The minimum cross-secion of he wire o be used shall be,5 mm 2 and maximum 2,5 mm² Power supply 5 OR 230 VOLTS POWER SUPPLY (BY PROGRAMMING) The conrol uni shall be proeced on he inle side by a wo-pole differenial circui breaker. The response curve shall be ype D. Power supply volage 5 V~ 230 V~ Raing 2X2 A 2X A The mains power supply shall be wired on he wo poins marked N and P on he 2-pin erminal block on he power supply card There are wo ransformer opions available for he MX32 power supply: ) ransformer wih casing (sandard by defaul) 2) ring ransformer (For connecion of special deecors so as flame deecors, ec ) A 24 vol power supply may be conneced o he poins marked 0 (black) and +24 V (orange) on he 2-pin erminal block on he power supply card. The minimum cross-secion of he wire used shall be,5 mm 2 and maximum 2,5 mm² 0

10 3.2.3 Common defec relay (Fig. 2, mark ) The common defec relay may be conneced o poins marked DEF on he 2-pin erminal block on he power supply card. The MX32 conrol uni has a «Defec» alarm for each measuremen channel (visual and audio), bu only one «Defec» relay ha is common o he wo channels. Voie Voie 2 Rep FIGURE Measuremen channels (deecors) The MX32 conrol uni may be equipped wih one or wo measuremen channels ha can be modulaed and mixed (see FIG. 2) Three opions are proposed wih he purchase: - MX32 wih 2 measuremen channels (mixed) - MX32 wih measuremen channel (mixed) - exension card (for a conrol uni wih oupu channel) The MX32 conrol uni will auomaically recognize he number of measuremen channels insalled (display)

11 Deecors Deecors have o be conneced o poins C, C2 and C3 on he 2-pin connecor on each channel card. 3 acive-wire "Wheasone bridge" ype "explo"sensor: : mid-poin 2 : deecor filamen 3 : compensaor filamen 4/20 ma 2-acive-wire sensor : signal (ground reurn) 2 : no conneced 3 : posiive power supply (24 Vols) 4/20 ma 3-acive-wire sensor : signal (ground reurn) 2 : negaive power supply (0 Vols) 3 : posiive power supply (24 Vols) For each family of sensors, on he circuis of he measuremen channels : - programming shall be done by INDUSTRIAL SCIENTIFIC (pins) and a suppor shall be used (figure 3, mark 6) Alarm relays Each channel is provided wih wo alarm relays corresponding o insananeous alarm hresholds and 2 (see Figure 3, mark 2). The relay corresponding o alarm is conneced o he RL erminals (green) on he 2-pin connecor on each channel card. The relay corresponding o alarm 2 is conneced o he RL2 erminals (gray) on he 2-pin connecor on each channel card 2

12 Rep C REP. 7 Rep. 2 REP.2 Rep.6 Rep B Fuse «24VDC» Rep A Fuses Alernaive secor Figure 3 3

13 4. Insrucions for use 4. Power on indicaions On he display: r 30ver Curren sofware version + buzzer es 000 Menu access code (currenly programmed) 20 Exising AL hreshold displayed for channel, while he AL and faul ligh for channel ligh up. 40 Exising AL2 hreshold displayed for channel, while he AL2 and faul ligh for channel ligh up Exising AL hreshold displayed for channel 2, while he AL and faul ligh for channel 2 ligh up Exising AL2 hreshold displayed for channel 2, while he AL2 and faul ligh for channel 2 ligh up. 4

14 0.52MIN Coun down (in seconds), from he ime for he measuremen channel o sabilize During his period, he 2 yellow faul led s are swiched on 0 % LEL + Then cyclic display of measuremen channel (if used) The display of alernaive measuremen: for example: ** % LEL 0CH4 ** CH4 4.. Momenarily display of a measuremen channel 0 TEST OR Manually display channel or 2 0CH4 Display he channel measuremen concerned OR 2 0CH4 One minue laer wihou pressing any keys - or + reurn o cyclic display of he 2 measuremen channels (if used) his ime is programmable in he facory 5

15 4..2 Cyclic display of he wo measuremen channels 0 TEST AND 0 % LEL 0 % LEL 2 press hese 2 keys simulaneously Alernaing display of he 2 measuremen channels 4..3 No measuremens displayed following a manual display 0 % LEL - and + press hese wo keys simulaneously OK wih no measuremen display 6

16 4..4 No measuremen display afer a cyclic display 0 % LEL 0 % LEL 0 TEST AND + press hese wo keys simulaneously OK wihou measuremen display 7

17 4.2 Menus Reminder: he following menus can only be used by qualified and rained personnel, for securiy reasons Displaying menus MENU If you press he «menu» key 0000COD You asked o inpu he access code (he uni reurns o normal mode if you do no reply wihin one minue) () s digi is flashing () 0 + AND MENU validae each DIGIT o form your CODE - : o change he DIGIT + To increase he DIGIT figure : o validae he figure 000 Final display of he access CODE Validae your code PRG PRG (flashing) PROGRAMMING 8

18 + cal CAL (flashing) = CALIBRATION + INI INI (flashing) = INITIALIZATION + COD COD (flashing) = access CODE + 9

19 BUZ BUZ (flashing) = BUZZER 0 TEST To display he previous menus To validae a menu Display he required menu using procedure described above. MENU o validae he menu o be used To exi from he menu (ESCAPE) You can always exi while using a menu by proceeding as follows: 0 AND + Press on hese 2 keys simulaneously EnrG NO flashing 0 + AND Display YES or NO 20

20 Validae your choice OK Reurn o normal mode (wih or wihou display) To use he programming menu Used o program he parameers of a measuremen channel. PRG PRG: flashing MARK MENU PRG To validae his menu (mark ) «channel» picogram flashing + 2 PRG MARK 2 (mark 2): «channel 2» picogram flashing 2

21 0 OR + choose he channel o be programmed On validae he channel o be programmed ON: flashing (mark ) The mainenance key appears (mark 2) The yellow ligh for he corresponding channel flashes (inhibiion of he channel relays) MARK MARK 2 OFF (mark ) off picogram flashing MARK 0 + OR Choose «ON» or «OFF» On CH4 Validae wheher or no o use he channel (mark ): CH4 picogram flashing (gas symbol o be chosen) 22

22 - OR + o scroll he differen symbols validae he deeced gas symbol On LEL mark : flashing picogram (measuremen uni o be chosen) - + OR o scroll he differen unis 00LEL validae he chosen measuremen uni measuremen scale + AND ener modify he measuremen scale (digi by digi) ener Validae he required measuremen scale 23

23 (2) (3) Exising alarm hreshold () for channel (2) = 20% of he lower explosiviy limi / (3) and in manual clearance (4) and he red ligh for 20MAN he corresponding alarm lighs up () 0 + (4) ener 0 + OR Modify he hreshold if necessary () 20MAN Validae hreshold AL for channel Picogram () flashing 0 + OR Choose alarm for channel : Increasing or Decreasing Validae he alarm ype 24

24 20MAN Picogram () «MAN» or «AUT» flashing 0 + OU Choose o clear alarm on channel by MAN: manual mode (a) or AUT: auomaic mode (b) Validae he clear mode a) If he gas conen drops below he pre-se alarm hreshold again: his alarm mus be cleared manually by pressing on he + key (clear) b) If he gas conen drops below he pre-se alarm hreshold again: he alarm will be auomaically cleared MIN Timeou (in minues) for he alarm relay rip ime Alarm rip block diagram Threshold exceeded Alarm and Buzzer LED Timeou (minue) AL relay rip 0 OR + Program he imeou ime DIGIT by DIGIT (0 min = insananeous alarm) validae he imeou ime 25

25 Pon 2 20MAN hen man program alarm 2 for channel as described above for alarm Pon: flashing (sensor ype) Scroll he differen ypes of sensor Pon: in Bridge (filamens) EHP: EXPLO (4/20mA explo.) InC: fire (ionic, opical, ec.) Au: ohers (flame, ec.) Pon MAN Validae he sensor ype - «MAN» is flashing - Tes - To display «MAN» OR + - To display «AUT» MAN : no visualisaion (yellow led is flashing) of he calibraionon a he deecor level (mainenance swich in he deecor). AUT : Visualisaion (yellow led is flashing) of he calibraion a he deecor level. () EnrG NO NO (): flashing 26

26 0 OR + Display «NO» or «YES» in reply o he quesion do you wan o save his programming? Validae NO (c) or YES (d) OK Reurn o normal display mode (wih or wihou display) Repea he same procedure o program channel 2 if necessary. (c) If you validae «NO»: he old programming will be saved. (d) If you validae «YES»: he new programming will be saved Iniializaion (INI) menu This menu is used essenially o auomaically INITIALIZE he measuremen curve managed by he microprocessor as a funcion of which sensor is conneced o he channel concerned. I is used in he following cases: - by INDUSTRIAL SCIENTIFIC when shipping new equipmen - he firs ime ha he uni is insalled - when a cell or sensor is replaced INI INI : flashing (iniializaion menu) 27

27 Picogram or 2 flashing 0 + Choose he channel o be iniialized Validae your choice EnrG NO Enr = save NO: flashing + Display he answer YES or NO Validae your choice 2 0ch4 Reurn o normal mode: measuremen display alernaing wih 0LEL 28

28 IMPORTANT: Afer making his adjusmen, calibrae he same measuremen channel using he ZERO and SENSITIVITY poeniomeers; Calibraion menu The only way of verifying he deecion capabiliy of he sensor(s) conneced o he MX32 is calibraion using a sandard gas. Gas deecion insrumens are poenial life-saving devices. Recognizing his fac, Indusrial Scienific Corporaion recommends ha a funcional bump es be performed on every fixed gas-monioring insrumens as par of a regular mainenance program. A funcional es is defined as a brief exposure of he deecor o a concenraion of gas(es) in excess of he lowes alarm se-poin for each sensor for he purpose of verifying sensor and alarm operaion and is no inended o be a measure of he accuracy of he insrumen. Indusrial scienific furher recommends ha a full insrumen calibraion be performed using a cerified concenraion(s) of calibraion gas(es) quarerly, every 3 monhs.* Calibraions may be necessary more or less frequenly based, for example, on applicaion, field condiions, exposure o gas, sensor echnology, and environmenal condiions. The frequency of calibraion is bes deermined by company policy or local regulaory agencies. If an insrumen fails o operae properly during any funcional bump es, a full insrumen calibraion should be performed successfully prior o use. These recommendaions are based on safe work procedures, indusry bes pracises, and regulaory sandards o ensure worker safey. Indusrial scienific is no responsible for seing safey pracices and policies. * For new insallaions i may be pruden o carry ou bump ess frequenly a firs (perhaps weekly), increasing he ime inervals (o, perhaps, monhly or more) as confidence grows wih experience in he insallaion concerned, on he basis of he mainenance record. Reminder: he following menus can only be used by qualified and rained personnel, for securiy reasons. The CALIBRATION menu can be used o check and make he zero adjusmen in clean air and he sensiiviy adjusmen in sandard gas. IMPORTANT: here are wo ways of making a CALIBRATION: ) following an INITIALIZATION (see INITIALIZATION menu) 2) in prevenive mainenance (minimum and regular mainenance) 29

29 ) Following an INITIALIZATION CAL CAL: flashing (CALIBRATION menu) CAL Validae menu Picogram or 2 flashing 0 OR + Choose he channel o be calibraed Validae he channel o be calibraed The corresponding yellow LED flashes 0xo Display he curren value (±0) X0 = Zero adjusmen 30

30 reminder: make sure ha he insrumen is in clean air, oherwise injec air o he sensor (wih calibraion ki) a a flow of 60 l/h, hen wai unil he signal has sabilized. If necessary (display no equal o ZERO), adjus he measuremen ZERO by adjusing he ZERO poeniomeer corresponding o he channel concerned (mark, Figure 4) Channel 2 «sensiiviy» poeniomeer (mark 2) Channel 2 «zero» poeniomeer (mark ) Channel «zero» poeniomeer (mark) Channel «sensiiviy» poeniomeer (mark 2) FIGURE 4 3

31 Validae he ZERO Now injec sandard gas (60l/h) a he sensor and wai unil he signal sabilizes. 30XF XF flashing (Sensiiviy adjusmen) Validae he fac you wan o adjus sensiiviy EnrG no If necessary (display oher han he value of he sandard gas), adjus he sensiiviy by adjusing he «Sensiiviy» poeniomeer corresponding o he channel concerned (mark 2, Fig. 4) Validae he sensiiviy Warning: never validae wihou injecing gas and making he adjusmen, oherwise you may rigger a faul Reques calibraion validaion flashing 0 OR + Display your choice YES or NO 32

32 EnrG YES YES or NO flashing using he keys 2 Validae YES (c) or NO (f) 0LEL Reurn o normal mode 2) in prevenive mainenance Repea he same procedure as above unil he zero is adjused 0XO Display he curren value X0 : zero adjusmen If necessary (display no equal o zero), adjus he measuremen ZERO, his ime using he and + keys. ener Validae he zero 2 If you validae «YES»: he calibraion is confirmed. If you validae«no»: he calibraion is no validaed and he old parameers will be kep. 33

33 Injec he sandard gas as described above If necessary, adjus he sensiiviy his ime using he and + keys. XF FLASHING : sensiiviy adjusmen 30XF Validae he sensiiviy Then erminae he procedure as above (Access) Code menu This menu modifies he access code o he differen menus COD flashing 000COD Validae he CODE menu Display he curren code 0 AND + Display your new code 34

34 Validae your new code EnrG NO flashing + Use his key o display NO or YES Validae your choice () Reurn o he normal display () If you validae YES: you keep your new code If you validae NO: you keep your old code Buzzer menu buz BUZ: flashing 35

35 Validae he menu flashing On buz Buzzer used? 0 + AND Display ON or OFF ON = buzzer acive OFF = buzzer off Validae your choice flashing EnrG NO Save? + Display YES or NO ener Validae your choice Reurn o display 36

36 4.3 Cleaning Do no use alcohol or ammonia based liquids o clean he conrol uni. If necessary, clean he ouside of he box wih a damp cloh. 4.4 Mainenance and servicing of he conrol uni The conrol uni does no require any special servicing. If one of he sensors needs o be readjused, his operaion mus only be done by qualified personnel. In his case, he conrol uni cover mus be opened. REFER TO CHAPTER 4.2. DISPLAYING MENUS Readjusing he zero: CHANNEL P3 CHANNEL 2 P5 (SEE FIGURE 4) Readjusing he sensiiviy: CHANNEL P4 CHANNEL 2 P6 (SEE FIGURE 4) 4.5 Replacing fuses and references Fuses mus only be replaced by qualified personnel. Lis and ype of fuses used in he MX32 conrol uni All fuses used mus comply wih IEC 27, and mus be imed and have a low breaking capaciy, volage 250 V. Power supply card (See 3, page 5) Power supply volage 5 V 230 V F8 F9 (rep A) 35 ma T 250 V ref ma T 250 V ref F7 (rep B).25 A T 250 V ref F F3 (rep C) 400 ma T 250 V 37

37 5. Scrapping of mx32 Concerning he conservaion, of he proecion and he improvemen of he qualiy of he environmen, as well as for he proecion of he healh of he persons and he careful and raional use of naural resources, MX32 has o be he objec of a selecive collecion for he elecronic equipmens and canno be scrapped wih he normal domesic wase. The user hus has he obligaion o separae he MX32 of he oher wase so as o guaranee ha i is recycled in a sure way a he environmenal level. For more deails of he exising sies of collecion, conac he local adminisraion or he disribuor of his produc. 6. Spare pars 2 channel analog card channel analog card Channel exension card Microprocessor card (display)

38 7. cabling examples EXAMPLES OF INSTALLING THE MX32 CONTROL UNIT - explosimeric deecor on channel - explosimeric bi deecors insalling on channel 2 Alernaing mains Neural Conacs alarm 2 Channel2 Earh Deecor Conacs alarm channel2 Channel Fuse Telephone dialer To a phone nework line Deecor A Gas valve closed Swich off* Inerconnecion box Deecor B Common faul display IMPORTANT : The AL and AL2 relays may be programmed in posiive or negaive securiy (programming menu). The "Faul" relay is in posiive securiy. The relay's conacs are available on he erminal in "NO" (normally opened) or "NF" (normally closed) following he jumper's posiion, locaed beside each relay. * Breaking capaciy of raing relays swich conac : 20 VA or 30 W (use an exernal power relay if necessary) 39

39 EXAMPLES OF INSTALLING THE MX32 CONTROL UNIT - explosimeric deecor on channel - 5 "CO" parking ype deecors on channel 2 (5 deecors max. in loop) Alernaing mains Neural Channel Conacs alarm 2 Channel2 Earh Deecor Conacs alarm channel2 Channel Fuse Telephone dialer Deecor To a phone nework line Deecor 2 Deecor 3 Common faul display ligh Gas valve closed Swich off* Deecor 4 Deecor 5 IMPORTANT : The AL and AL2 relays may be programmed in posiive or negaive securiy (programming menu). The "Faul" relay is in posiive securiy. The relay's conacs are available on he erminal in "NO" (normally opened) or "NF" (normally closed) following he jumper's posiion, locaed beside each relay. * Breaking capaciy of raing relays swich conac : 20 VA or 30 W (use an exernal power relay if necessary) 40

40 8. Special Specificaions for use in Poenially Explosive Amospheres in accordance wih European Direcive ATEX 94/9/EC. The MX32 deecion device designed o measure explosive gasses and oxygen complies wih he requiremens of European Direcive ATEX 94/9/EC on poenially explosive amospheres. As a resul of is merological performance, as esed by he research and esing organisaion INERIS, he MX32 device, is classified as a safey device when used wih INDUSTRIAL SCIENTIFIC CEX300 and OLC/OLCT 20, 40, 50 and 60 series deecors. The device may herefore conribue o limiing he risk of explosion as a consequence of he daa i supplies o exernal unis. The informaion conained in he following paragraphs should be adoped and complied wih by he person responsible for he sie on which he equipmen is insalled. Please refer o he provisions of European Direcive ATEX 999/92/EC on improving healh and safey condiions for workers exposed o poenially explosive amospheres. Specificaions for mechanical and elecrical insallaion in Classified Areas. Insallaion will comply wih all applicable sandards, and paricularly wih EN , EN and EN The MX32 device mus no be subjec o inense mechanical vibraion and mus be insalled in a safe area away from poenially explosive amospheres. I is essenial o refer o he user and insallaion manuals for he gas deecors referred o above, paricularly he paragraph eniled Special Specificaions for use in Poenially Explosive Amospheres in Accordance wih European Direcive ATEX 94/9/EC Where inrinsic safey insallaions are concerned, i should be borne in mind ha he person responsible for IS insallaion (he Sysem Designer ) mus draw up a sysem documen demonsraing ha every aspec of he Power Cable Deecor sysem complies wih inrinsic safey. Please refer o EN for group II and EN for group I when drafing his documen. Merological Specificaions The device complies wih he following European sandards: Wih explosive gas deecors: - European sandards EN and EN for Mehane (calibraion gas), Propane and Hydrogen (gasses following response curves) where he device is used wih CEX300 and OLC/OLCT 20, 40, 50 and 60 series gas deecors. Where he device is used wih oher ypes of sensor producing an oupu measuremen curren of 4/20 ma, hese mus comply wih paragraph.5 of Appendix II of he ATEX 94/9/EC Direcive and be compaible wih heir characerisics (cf. device ransfer curve). 4

41 - European Sandard EN

42 Oxygen deecors: - European Sandard EN 5004 where he device is used wih OLCT 20, 40, 50 and 60 gas deecors. Where he device is used wih oher ypes of sensor producing an oupu measuremen curren of 4/20 ma, hey mus comply wih paragraph.5 of Appendix II of he ATEX 94/9/EC Direcive and be compaible wih heir characerisics (cf. device ransfer curve). - European Sandard EN 5027 Connecing deecors oher han INDUSTRIAL SCIENTIFIC deecors o he MX32 device As previously explained, users wishing o connec deecors oher han hose manufacured by INDUSTRIAL SCIENTIFIC, mus ensure heir compaibiliy wih he device in order ha he resuling combinaion may be considered as a safey device. Device ransfer curves in 0% o 00% LEL configuraion The following curve shows he response of he device in erms of value measured, and faul processing as a funcion of he inpu curren value supplied by he deecor. Where he user connecs a brand of deecor oher han INDUSTRIAL SCIENTIFIC o he MX32 device, he mus check carefully ha he ransfer curve is fully compaible wih he device inpu characerisics, o ensure ha he daa generaed by he deecor is correcly inerpreed. Equally, he device mus supply a suiable power supply volage, allowing for cable volage losses. Display in % LEL SUP 00% LEL Faul 0% LEL -20% LEL 0.8 ma 4 ma Faul 20 ma Signal supplied by he deecor in ma Please noe: When he value measured is >= 00% LEL, he measuring device memorises he fac ha he value has exceeded he scale and he channels swich o alarm and faul mode. Reseing hese sauses is a manual operaion o be performed by he user, who mus follow he safey 43

43 regulaions specific o he sie. The rese is checked eiher by urning he device on and off or by a mainenance inspecion. 44

44 Device ransfer curves in 0% o 30.0% OXYGEN configuraion The following curve shows he response of he device in erms of value measured, and faul processing as a funcion of he inpu curren value supplied by he deecor. Where he user connecs a brand of deecor oher han INDUSTRIAL SCIENTIFIC o he MX32 device, he mus check carefully ha he ransfer curve is fully compaible wih he device inpu characerisics, o ensure ha he daa generaed by he deecor is correcly inerpreed. Equally, he device mus supply a suiable power supply volage, allowing for cable volage losses. Display in % O2 by volume 36.0% Faul 30.0% 0.0 % -6.0% Faul 0.8 ma 4 ma 20 ma 23.2 ma Signal supplied by he deecor in ma Power supply and load resisance characerisics Maximum curren available beween erminals 2 and 3: 250 ma a 9 V. Maximum no-load volage beween erminals 2 and 3: 30 V Load resisance (ouside he IS barrier) beween erminals and 2: 47 ohms N.B.: This daa applies only where deecors oher han INDUSTRIAL SCIENTIFIC are used. Where differen ypes are mixed, please conac INDUSTRIAL SCIENTIFIC o esablish he feasibiliy of he combinaion. MARKING OLDHAM Arras 0080 II () (2) G INERIS 04ATEX

45 9. Declaraion of conformiy 46

46 47 Ex-Ox-Tox Gasdeecie Weserdreef 5V 252 CS Nieuw-Vennep Telefoon: Websie