SLE3600 INOSYS
Contents
1. SVBACK NOE 1 ns on QLOCK OSCILLATCR BATIERY LEDOSCILLATOR E Inst 2 FER vou 8 10 mae D Pr zam z m ct 100K 5 L1 R21 XT 1N4148 5 ov LCDBACKLIGHT 45 MAINS ee M a 55 100k BACKLIGHT CONTROL AUCH 014 m n2. I 2 3 4 5 6 7 8 9 10 PRE PRODUCTION REF 676 115435 USED ON SLE3600 amp 3601 WARNING LCD BAR CREAR VIEW SK13 g BACK o LIGHT fg FRONT PANEL MEMBRANE eee MAYA e rr 4 lt mam lt 464 2 Le X SK14 SK12 SK13 Sons J13 FAN E 1 1 9VMAINS 1013 ON e a DIOXIDE TIRE EE us c SENSOR SRE TEMPERATURE SENSOR 0 TOP VIEW m a LJ T INTERNAL PRINTER 79 1 a MAIN CUNTROL PCE I iZ 2 m NITRIC 551153940 2 D OXIDE xl 2 SENSOR GZ 2 lt 1 1 Ola pe 3 m a 2 5 m 2 3 L SU PCB IE 5 s 25 w w w CS115398 5 uj TP4 1 m 1 1 E AG Je4 9 18 mil rola VIEWED FROM UNDER SIDE DF Jit Jee Jel Je3 Jes CH SK11 SKee SK21 SK23 SK2S EXTERNAL EXTERNAL cp 7 di PRINTER RS232 L gt gt ol lt elv la lt Is SR SIR EARTH a E 8 m E d m r F fa i d 1 SPEI 3 PI B DIN VALVE PUMP VALVE DIN C CHART RECORDER VENTILLATUR o D ALARM MAINS INLET REAR VIEW LEAD AC
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4. 3 BATTERY DISABLE COMPARITOR INTERNAL PRINTER I ma S Dip M 1 420 aus PN E 2 520 2208 Ga EJ Cose 4 420 Leer 220 RNS VBATT ki vie ss Te 104 5 een Dm BVREF LMC8084 220 0v 0 en 292 435 217 4 15 D 4 EHEADA 40 420 1616 x ovisoL 2 D 4 48 PHEADB P ezo 74 220 4 14 RNA J20 55 SS iso AMBIENT TEMPERATURE SENSE 8 10 IL 74 ad EXTERNAL PRINTER INTERFACE H AMBTEMP E taa N E 21 75 T OUTPUTS E iM cess 1020 a 00 IL 74 113 M Res 46 RN12 Lo 8 2 5 06 118 i A Sen E 38 iH X 185R 1A a 4 7 D LIO 185R 1A pa LSU Rust aa as T saa BR Y sa 4 PUMP PIP inv x 1858 1A p 224 or RAS 11D 03 2 1 2 RA 221 4 15RA 15 224 24 lt Ree 4 221 N N ps x ovisoL 1N4148 5 221 a 14 224 AUTOFEED 324 SELECT INPUT 11 RNIB amor x 12 1621 E 74 RNR 10 ANA ER In SRM a 7 5 4 522 1622 D17 1074 GAS VALVE mer 1 T RPD
5. SLE3600 Page 83 Page 84 SLE3600 sre Ce mms musveosvoss wmrammanr 7 s tsme es um 1 res mke cs sov 3 5 rome ms s Ce res wa x 16 csk screw 6 7 wem wwe a Ce rome wen E s remus AE 10 H3093 1 Fu remm wee eo 6 rema wwe 2 ewe 1 1 5 reses funswsses russes 2 ur ses rose nan spacer mm 18 N4115 M75 0280 44m PAKLMONTINEN 1 19 N4115 M75 281 MOUNTUNEN 1 20 n9002 4115 92 012 1 21 n9006 N4115 M92 016 ee 115 632 23 15394 N4115 394 24 51549 5 445 BATTERY_BRACKET 25 suse Nens 4se 1 26 susez N4115 670 1 s sues comme a suse weisse sn 31 N4115 542 se sussss N4115 553 N4122 32 i SNAP PANEL VENTS FEET LABEL PATIENT INPUT DUTPUT ASSY E 5 TUBE SIL 3 26 40 250900 34 15567 N4115 567 SV_ISOLATOR_ASSEMBLY N4115 568 POWER CABLE ASSEMBLY 00 se BATTER OE ASSLT s sms muss EAT i susora mausvsra
6. Printer Port Signal Name Purpose Pin 1 STROBE Pin 2 DO Data Bit 0 Pin 3 D1 Data Bit 1 Pin 4 D2 Data Bit 2 Pin 5 D3 Data Bit 3 Pin 6 D4 Data Bit 4 Pin 7 D5 Data Bit 5 Pin 8 D6 Data Bit 6 Pin 9 D7 Data Bit 7 Pin 10 ACK Acknowledge Pin 11 BUSY Pin 12 PAPER END Out of paper Pin 13 SELECT Pin 14 n c AUTOFEED Pin 15 ERROR Pin 16 INITIALISE Pin 17 n c SELECT INPUT Pin 18 OVISOL 0 volt isolated signal ground Pin 19 OVISOL 0 volt isolated signal ground Pin 20 OVISOL 0 volt isolated signal ground Pin 21 OVISOL 0 volt isolated signal ground Pin 22 OVISOL 0 volt isolated signal ground Pin 23 OVISOL 0 volt isolated signal ground Pin 24 OVISOL 0 volt isolated signal ground Pin 25 OVISOL 0 volt isolated signal ground CASE CHASSIS Connector Housing SLE3600 Page 53 SLE 9 2 4 Alarm Control Signal This is a 180 3 pin panel mounting DIN connector Allowing the external interface cable to be screened as well as locking into position and thus preventing accidental removal This cable connects internally with J25 See INOSYS Wiring schematic on page 67 Alarm Signal Signal Name Purpose Pin 1 RX2 Alarm signal input Pin 2 OVISOL 0 volt isolated signal ground Pin 3 n c Not connected 9 2 5 Chart Recorder Outputs This is a 240 5 pin panel mounting DIN connector Allowing the external interface cable to be screened as well as locking into position an
7. 2 ses eraser amu __ eos 1 or ezezenm sens x nasa al e MIO x tease ossen ems se noun mme sssovsmw sr 2 ummene som sr sas _ ore ei zoomen amem er jason veon men ar Ce fans wa r arwexwrrrrw en mosso orx 9 Ce sens onen 5 Amos wor r even 2 mme seven sse nues fv ae fa See A3 version on page 85 Page 69 SLE3600 SLE SLE Part No P0494 36 0779 01 4117 25 H3094 01 N4115 M36 010 N4115 M55 225 N4115 M55 226 N4115 05 N4115 06 N4117 26 N4115 M92 012 N4115 394 N4115 398 N4115 535 N4115 01 N4115 536 N4117 02 N4115 542 N4115 557 N4115 558 N4115 560 N4115 566 N4115 567 N4115 568 N4115 569 N4115 569 N4115 573 Page 70 15 INOSYS Spares Description Mains inlet filter 315mA Time delay fuse Lead Acid Battery Crinkle washer Berylliumcu m3 Restrictor Hinged support Edge Holder Low Range Flowmeter High Range Flowmeter Sealing Washer Side Panel 0 5HE No Handle Mount Main Con
8. CE INT 26 SLE3600 SLE Press the Zero button left Zero span Et The unit will display Purge System Flush with air for 3 minutes ADO Press the Start button left The unit will display Zeroing sian me TO O e tis possible to abort by pressing abort before the unit displays Zeroing Done Press the Continue button left The unit will ask if the user Cie wishes to save the settings or not yO O Press the Yes button left The unit will then ask if the user wishes to restore the Low NO d O Alarm limit as this may be adjusted to avoid sounding alarms Restore NO Lim Tess J Choose No button centre if calibration procedure is to OTTO e Ee 4 Choose Yes button left if calibration procedure is complete Turn off and disconnect the supply of medical grade air Zero Calibration is now complete SLE3600 Page 27 SLE 4 3 2 Nitric Oxide Calibration Usea certified NO Nitrogen mixture of concentration between 20 and 30ppm NO in pure No Agitate or roll the cylinder for at least 5 minutes before use to ensure that the gas is well mixed Connect NO Nitrogen mixture turn on the gas cylinder and adjust the flow rate to 1 5L PM read on the plastic flow meter Wait 1 minute for the instrument NO reading to stabilise Note During NO calibration the NO reading will fluctuate Ignore th
9. Checking Tube Press the Span button centre Zero Sm Din Press the NO button left NO Noz NEO O Use the Up left and Down centre buttons to enter the concentration of the calibration gas A OO Press the Exit button right Up Dow Ext DO on Press the Start button left The unit will display Calibrating NO and then Span Done Or if incorrect gas is used the ACA O unit will display Cal out of range 22 SLE3600 Press the Continue button left The unit will ask if the user wishes to save the settings or not PEO Press the Yes button left The unit will then ask if the user m wishes to restore the High NO Alarm limit as this may be ODO adjusted to avoid sounding alarms 00 Restore NO Lim Choose Yes button left or No button centre uua yu Yes is recommended Close the NO supply on the bottle Once the tubing has de pressurised fully close the pressure regulator and disconnect the NO bottle The Nitric Oxide is now calibrated SLE3600 Page 23 SLE 4 2 3 Nitrogen Dioxide Calibration Flush the unit with air See Zero Calibration on page 20 e Use a certified NO Air mixture of concentration between 5 and 15ppm in Air Agitate or roll the cylinder for at least 5 minutes before use to ensure that the gas is well mixed e Connec
10. ISLDRYT Rat R47 2 6 2 lt 8VBACK I SWi 7 be 2 220R 1074 a ve V m 2 48 e pee Tis 1 5 14 um WS s rime nip PEN Ti x 3 nis me Ya ol a E Frag 5 SUPPLYPOWER DONN gl z 2 13 TS a sov CRDWITHSTANDBY BUTTON y Rio axe P 217 5 52 AS BACK 8 ETT m 6 1 4 P pis caa gt gt E o H ta DR 7 STANDBY 802128 at Di R81 02 61 8 sp E 1k R42 aus HRS ABACK 22 1074 os H INTERFACE rn IBAT DIS zw R20 14 4 iE AE G E i EOS TAKE S HELL TO CHASSIS ov Sub g 3 b 1N4148 MW mao 14148 C58 TAH C14 bi VCHARGE Li 100uF 100nF E 511501 VMAINS e 23 E 4m 3 838 BC2128 sae acte VBAT 10k E WARN LED WLEDSUP1 MM sex ii R43 1 11 R49 7 208 Yon 2e ISOLATED EE WLEDSUP2 our 5 sos AK ax WARNINGLEDS 0501 _ 0502 N E 2 DEAD LED i a XL2 Ener ov SOL 10 104 L 5VISOL il R50 REALTINE CLOCK 8 D Y E w AVBACK NOTE 1 2 REFECOST 36 MANS ISSUE RASED us 4 4 3 8 2 3 8 6 6 2 2 2 4 8 N A ict 1 2 1 4 15 Ice 112 1613 Re 1 2 4 g
11. Restore Lim Choose No button centre if calibration procedure is to continue Choose Yes button left if calibration procedure is complete Press the Exit button right zero Span Ext Note If a printer is attached the calibration information will be printed after completion of each calibration Close the supply on the bottle Once the tubing has de pressurised fully close the pressure regulator and disconnect the bottle The Nitrogen Dioxide is now calibrated Connect the supply of medical grade air regulated to give a flow of 1 5LPM to the patient input and flush the unit with air Disconnect air supply The unit is now ready for use Page 30 SLE3600 SLE Maintenance SLE3600 Page 31 SLE 5 Maintenance 5 1 Electrical Interference Note All these tests should be carried out by a qualified engineer If the INOSYS is adversely affected by equipment emitting electromagnetic interference then that equipment should be switched off or removed from the vicinity of the INOSYS Conversely if the INOSYS is the source of the interference to other neighbouring equipment it should be turned off or taken to another location Use of mobile phones or other high frequency sources in the vicinity of the INOSYS is not recommended Care should be taken to ensure that cables leading to the INOSYS are not mixed with other equipment cabling 5 2 Ventilator Alarm Checks Please refer to
12. Mains Interface IEC 320 Style connector PC connection RS232 connection The RS232 9600 baud 8 data bits 1 stop bit no parity Internal Printer Optional Series Thermal printer Page 48 SLE3600 External Printer use SLE Hewlett Packard Deskjet or compatible printer PCL 2 Dimensions W260mm x D250mm x H180mm Operating Conditions Temperature 18 to 30 C Humidity 20 to 8096 non condensing Atmospheric pressure 800 to 1200hPa Transport and Storage conditions Temperature 20 to 50 C not gt 2 5 months Humidity 15 to 90 non condensing not gt 2 5 months Atmospheric pressure 500 to 1060hPa not gt 2 5 months Instrument housing Material type ABS UL 94 HB Instrument Weight 6 8kg EMC This unit complies with EN601 1 2 1993 As per BSI Report No 228 000102 BS5724 Pt 1 1989 IEC 601 1 1988 and EN60601 1 1990 BS EN601 1 2 BS5724 1 2 1993 Electromagnetic compatibility SLE3600 Page 49 When viewed from the input side of the connector SLE3600 Page 50 Din Connections Alarm Signal Signal Name Purpose Pin 1 RX2 TTL compatible Active Low Pin 2 OVISOL 0 Volt isolated signal ground Pin 3 n c Not connected Chart Recorder Signal Name purpose Outputs Pin 1 NO NO Analogue Output 120mV to 5V dc for 0 to 200ppm Pin 2 OVISOL 0 volt isolated signal ground Pin 3
13. vumwc sucisoaccs a s sm susmmaur 1 Cao 7 OIEA ES sus 975 6 recrean a susses wans emor coran secano suss wens cmors comer 2 Cas wens cmwos ome seras 3 Car sus wans cmors ROWE SRP ems 4115 99 015 N4122 32 N4115 607 8 iii 8 SIL 3 21 6 40 25 46 GASKET RFI EXP METAL 40MM SQ 6 35 320 4115 635 _ SPECIAL TAPPED SPACER MI8 x 10 THIN NUT NYLON PILLAR x 38mm CONNECTOR COVER GROMMET STRIP x 270mm LABEL LEFT PANEL LABEL PAT INPUT DUTPUT N4112 16 4115 55 229 4115 486 4115 003 4115 651 N4115 632 4115 556 SEE DETAIL ABOVE SS INOSYS exploded view 5 Page 85 Page 86 O SLE Service Information and Technical Bulletins SLE3600 Page 87 SLE 16 Service Information Letters and Technical Bulletin Index Service Letter 2 Si980701 Si980702 Si980707 Si980708 Si980911 Si990304 Si000301 NO shut off valve replacement Serial N affected 060101 to 060125 Replacement of faulty side panels Serial N affected All Replacement procedure for gas stop valve Serial N affected All Replacement procedure for faulty side panels Serial N affected 060101 to 060125 Instalment procedure of optional printer For machine
14. 41 PLE patoraw P3 2 5 42 eut na JPDN INT 4 JPDN INT cas ij ca com CHARGE 1 BC1828 3 pa 33mA MAXIMUM 44 PL8 gt 4 VMAINS as 40 Pis 55 ov La F5 BOR 9W TEM 1 25A VDGRAW N 5 m SOS uso non 416 LER 2 PL2 BATTERY I t nt _ 22 630 PER 2 com br v ka al svisoL 244 m ou T 7 2 PLI INTERFACE WITH Ria Ras 99 Sonne 2 PLI MAIN NOX 220R 44 2 PCR cu azur inp 7 Tii28 224F 400nF 27m A MAXIMUM I bd 2 a 4 ATF De BOR 8W 628 R26 Dv ator 30 BATTERY CHARGE CIRCUIT En R24 Bota 184 2 1 1M 324 2VBREF oV ee SAWTOOTH 1 N 6 ISOLATED BV GENERATOR CE 3 VDE CHRO VDGRAW R30 ter 2 300k SET e VGHARGE VMAING SWITCHED MODE REGULATOR SMR m m m FOR 5V BATTERY OR MAINS 2 4 cia In 70142 out am 3 mus 2207 100nF ARA MAXIMUM T ov ov 12V GENERATOR BOR 8W 2 zar Tinon 4 di 4 DECOUPLING 5VINT BOR SW e a 4 I
15. E enn E 62 SLE3600 Page 3 SLE A CIFGHIEIBOEA ITIS srt odor loli Ep gui Uer de 64 14 1 Main Control PCB circuit diagram Sheet 1 of 2 64 14 2 Main Control PCB circuit diagram Sheet 2 012 65 14 3 INOSYS PSU PCB circuit 66 14 4 INOSYS Wiring Schematic a DIR ee Ero a Spree dE THEE 67 14 5 Printer Driver PCB circuit diagram 2 2 0 20 He 68 14 6 INOSYS Exploded view 69 15 INOS YS c toos ida di ida 70 16 Service Information Letters and Technical Bulletin Index 88 17 Issue Revision Record Page 4 SLE3600 SLE Introduction SLE3600 Page 5 SLE 1 Introduction 1 1 References and Related Documents Although this manual has been designed to include all information necessary to maintain optimum performance of INOSYS it does not attempt to cover all of the operating procedures contained in the User Manual A good working knowledge of the operation of the INOSYS is essential in attempting to carry out maintenance or repair work In addition all warnings and cautions in the User Manual also apply for the service manual The User Manual should therefore be considered a reference document for the Service Manual 1 2 Terms and Abbreviations The following terms and abbreviations are used in this document PSU Power Supply
16. E D c2 can 5 is BATIERY STATUS Hl Re Re No ox 3 M 7 3728MHz 10k 10k R87 40 3 id 10K ove A0 jJ bis pour uk AD 10 AL E POUT2 ws cso d AL rece 2 1 m a 45 2o Do E EN 11 802128 PE Po AD y o E m Pe cious D 15 mou bites ic10 AS 5 At 02 15 03 3 pul 1 m 03 03 1 e cor gt SV ROB airs man Ls D E 1 pa ap NITROGEN Te an 106 2052 05 a 1 15 dup P5 0 CCM 0 9 24 DOXIDE m L g O Ao 5 SENSOR NO2 SENS jx 2 CRE Hi Au sp ses 1 ar AS 12 nh E iG Fans mum pu A 2 1p Ps arcana Pomo SV MAINS 3 10005 pet an A15 Paes del i 1 Vicens ms mon HE D 2 s PN Pus RD ju rain cz psen MIR m pasm s5VBACK Ara mam en i pena riso 0 50 us 1 E WATCHDOG OUT 100K x SoD ato CONTRGLSIGNAL AUX 5 DEAD LED ZO moo ses 2 t L Lu BER niue e T en Me 1 3 5 e CHARGE ra BAT mim e HE VAS iss mem Qe mua x Lp TRTE z SOL CURZI ne a ATC PUMP CUR
17. 14 icis gu icio 1027 TE 3H mo THRDANGLE PROJECTON 55 DRN APP 74408 85 MATE 7410573 2052 Pa THON THCM THCM WHCN Pa CHECKED DATE MATERIAL toa Luli 3697 ANGULAR 12489 APPROVED DATE 7 7 8 4 10 4 5 8 10 10 0 7 4 zim Sen TME VISOL Sur NOXSYSTEMMAINCCNIROLPCB oF GRCUTDIAGRAM 28 8 DRGNOAY 66 0158 55 3 SLE3600 Page 75 Page 76 SLE3600 SLE 2 Main control PCB circuit diagram Sheet 2 of BVMAINS
18. Limited E m e PROPTER WITHAUT WRITTEN permission O 0 119439 C USED ODN SLE3601 R3 RS 180k 10k pLi la PTACHO he TVS Di e 45V Re Q1 1N4148 9 ae X N BDe43A p PM x 1 Eu c GB ca DES PLile RG PRINT T 100uF 47nF 47nF 4700uF 10K MECH PES Y i i PL3 4 DA PL3 5 R 5V B PHI eae PHEADI vus 8 PH2 EIE R4 CONTROL PHEADO 10 12 7 PL2 HR CABLE ASSY PHEAD3 IS Pure ipso RENS PHEARS INS mo pua lt PLE ws PHOME PL1 10 5 PLe UDN2543B Los HEAD 47nF CU EE PHEADS JIN 4 nutie iuc 4 PLe 12 PHEADS 10 ine PH6 PHEAD7 essen gute 3 PL2 PL1 13 PDRIVE e 1 NE eae e PLe 1 14 aura 2 PCOM UDN2543B 1 J PM fos gum 0k L EME PL1 16 LAT R7 1k DV D 5V 11 IC UDN2543B 4 5 12 13 MATERIAL TOLERANCES SCALE TITLE u DTHERWISE STATED NTS PRINTER DRIVER PCB STOCK CODE No XXX APR D CIRCUI JAGRAM 232 SELSDON ROAD FINISH CHK D DRAWING NUMBER EE SOUTH CROYDON DIMENSIONS IN CN0473 1 17 02 98 MA SURRE De MOD 155 DATE APPD CR2 6PL 2 0181 681 1414 Remove All Burrs amp Sharp Edges PROJECTION lt DATE 17 02 98 MODIFICATION CONTRI 3601 Pis 3
19. Unit LCD Liquid Crystal Display LED Light Emitting Diode EPROM Erasable Programmable Read Only Memory DPST Dual Pole Single Throw ADC Analogue to Digital Converter PWM Pulse Width Modulated NO Nitric Oxide NO Nitrogen Dioxide Page 6 SLE3600 En SLE INOSYS control description SLE3600 Page 7 SLE 2 Controls 2 1 Front Panel Description 1 500 0 100 ml min ml min 1 Standby switch 6 Right Control Key 2 Standby LED 7 LCD Display 3 Power LED 8 Alarm Light Bar 4 Left Control Key 9 Flow control coarse 0 to 500ml min 5 Centre Control Key 10 Flow control fine 0 to 100ml min Keys 4 5 and 6 have multiple functions the function of the key is displayed above the key on the LCD display For the rest of this manual these keys will be referred to by their function and their position LEFT CENTRE and RIGHT Page 8 SLE3600 2 2 Rear Panel Description 1 Exhaust 6 Mains Connection 2 Printer Port j 7 Analogue Output j 3 RS 232 Connector j 8 Power Switch 4 NO Input 1bar 9 Fuse Holder 5 Ambient Air sampling port 10 Alarm Control Signal from SLE Ventilator N Inosys should only be connected to equipment that complies with IEC 601 1 or IEC 950 configured to comply with IEC 601 1 1 SLE3600 Page 9 gt m This page is intentionally blank Page 10 SLE3600 SLE Access to internal componen
20. YES NO YES limit goes above limit No user OFF after set High ON YES YES YES intervention delay above limit Mute key OFF after set NO High OFF after YES NO YES pressed delay delay above limit Reset key OFF after set None OFF YES NO YES pressed delay NO falls back below Already reset ON None OFF NO NO NO high limit NO falls back below NOT reset OFF after set NO High OFF YES NO YES high limit delay NO returns above low NOT reset ON NO High NO YES NO YES limit NO Already above high No user OFF after se High YES YES YES YES limit then goes intervention delay Message above limit overrides NO Already above high Reset key OFF after se NO High YES YES YES YES limit then goes pressed delay Message above limit NO and both above Reset key OFF after se None NO YES NO YES high limit NO already pressed delay reset Ventilator Low Flow Display error Shut Off On VENTILATOR YES NO YES YES Alarm until key Error ALARM pressed Page 44 SLE3600 SLE Alarm Current Shut off valve Message Audible Limit Error Warning Bar Condition Displayed Warning Flash Printout NO Sensor calibration Display error Unaffected NO Calib Due NO NO YES NO due until key pressed Sensor calibration Display error Unaffected Calib NO N
21. by applying the sniffer tube to the patient input and Sniff every joint on the regulator for at least 10 seconds Any reading of NO concentration above ambient level indicates a leak that must be investigated and rectified Close cylinder tap Put the blocked end of the hose out of a window and remove the blocking cap Once the gas has escaped remove the regulator from the cylinder Close the regulator Turn off the INOSYS and remove the sniffer tube SLE3600 SLE Troubleshooting chart SLE3600 Page 41 SLE 6 INOSYS Trouble Shooting Symptom Possible cause Action INOSYS does not switch on Power cable not plugged in Rear panel power switch not on Front panel stand by switch not on Battery flat Power supply module faulty Plug cable into power inlet at rear of unit Switch to ON position Press stand by switch Replace or recharge battery Replace power supply module Stand by LED not flashing Battery flat Replace or recharge battery LCD screen blank Internal power cable not connected Internal data cable not connected Faulty main control PCB Check power cable and rectify Check data cable and rectify Replace main control PCB No response to keypad commands Internal cable not connected Faulty main control PCB Check cable and rectify Replace main control PCB Internal printer not responding Internal cable not conn
22. it no longer carries the last calibration date for the sensors To restart the cycle the unit has to be told that the sensors have been replaced To do this use the following procedure From the main menu press the Print button right Press and hold the unmarked right button for 5 seconds MITT Press the Setup left button Press the Sensor left button Press the NO left or NO centre buttons to select the required sensor cell Press the Replaced left to indicate a new sensor cell has been fitted Press Yes left to confirm NO centre abort setting Press Exit right to return to the main menu SLE3600 Page 35 SLE Step 5 The unit now has to be left in stand by mode for 4 days after sensor replacement to allow the sensors to stabilize Step 6 The sensor cells must then be re calibrated See Calibration Procedure on page 18 for details Page 36 SLE3600 SLE 5 9 Replacement of Sensor Cells Step 1 Remove the top cover Refer to Accessing the internal components of the INOSYS on page 12 The NO and NO sensor cells are located on the left of the PCB and are clearly labelled Disconnect the silicone tubing from each sensor Undo the two outer screws A holding the polarising plate The cells can be lifted clear W A The fixing screws for the NO and NO sensor cells Step 2 Turn the sensor cells over and remove the three screws B that sec
23. ok In the Port Settings menu enter the settings as above set Flow control to Hardware Click ok Data will automatically be collected Once you have finished collecting save the data to a file Click File Save as and enter a file name Data is saved as ASCII text delimited by tab characters ASCII code 8 and terminated by a carriage return and line feed ASCII codes 13 and 10 The data can be read by most of the popular spreadsheet packages e g Microsoft Excel etc Page 62 SLE3600 SLE Circuit diagrams SLE3600 Page 63 SLE 14 Circuit Diagrams 14 1 Main Control PCB circuit diagram Sheet 1 of 2 hi EN RRRSRERRERERRESRERS 222 25 22 25 TJ EE e lc la ARA ORDERED 4 i ii MM if A siai sisi ea 3 TEA T i dope SNP N 224 EE mms i i 5 ul wi E poma jir a of MR y M ert wm ndi iki See version on page 75 Page 64 En L KE T A1 La A 24 2 a AA E TRE DRANOA ENS HT mig re Hit 1 Eh E if in B 8 ha E 4 af SLE3600 14 2 Main Control PCB circuit diagram Sh
24. 1 A mm 2 a 11D 03 1022 1574 2 222 RP2 4 RPD2 522 E ES N ovisoL RSS E 2 SOL CURI 4 os IR 104108 Tour E BVIBOL gt 1223 1 4 ov IL 74 RN17 45 1 RN25 RNB RNG asv SZ 220R ov 2 887485432 R70 1622 LRN17 25 ms IL 74 m L 824 22 m 44 4 RN2 amp is gis Dia RN22 RN 36 ov 2 sav CHANGE OVER VALVE al on 5VISOL M 11D 03 E a mundi 42 1028 100k oR 4 223 74 10 24 ACK RN20 40 Rev SOL OURZ x 2 mE 11 324 BUSY 10k ov 18 ta 136R 1A 20 5 i RES ET 12 224 PAPEND INPUTS 1034 42 da SEL gt PA 13 224 SEL os 1574 all 22 AR RN21 4 7 TAH AROR y T 15 J24 ERROR 1 ppt 4358 HA 3 ov Roe s 2 17 100k JM 4 1624 424 ov ov 1 074 RN22 4 RN3D 324 w D 424 324 J24 135R 1A wvisoL P Ng TAKE SHELL TO CHASSIS SVBACK 2 REF I amp 6UE RAISED DECOUPLING cis cis c17 621 C28 c28 628 630 cas caz 633 634 C35 cas cas cas can 4 ENHANCEMENT mo azuF 100nF 100nF 100nF 100nF 100nF 100nF 100nF 100nF 10DnF 100nF 100nF 100nF 10DnF 22uF 100nF 100nF 100nF 22uF 22uF 100nF ISSUE RAISED DRAWN DA
25. 4 1 4 Paper Width mm 57 58 Operating Voltage 5 volts Printing Speed line s 0 8 The printer head is driven via two protected quad power drivers IC1 and IC2 UDN2543B These devices are over current protected at currents above 1 Amp Page 60 SLE3600 12 The PSU PCB 5115398 issue 3 Reference should be made to INOSYS PSU on page 66 SLE The PSU PCB converts raw mains A C voltage into the D C voltage levels required by the Main Control PCB in order to function It also allows the operation of the unit purely from a battery supply during transportation or in the event of mains failure Note when operating from the battery supply certain power rails are disabled to reduce current drain The following table details the voltage levels provided by this PCB Signal Name Function 5VMAINS 5 volt rail only present when Mains is supplied switchable via the stand by button 5V 5 volt rail supplied by battery or Mains switchable via the stand by button 5VISOL 5 volt isolated rail supplied by battery or Mains switchable via the stand by button 5VBACK 5 volt rail supplied by battery or Mains non switchable 12V 12 volt rail supplied by battery or Mains switchable via the stand by button VCHARGE Derived from VDC CHRG this potted down signal is used to measure battery charge voltage VBATT Derived from BATT this pott
26. E ventilator In the event of the ventilator sending an alarm signal Active high 12 volts the second receive channel of the MAX232 relays this information to the micro controller in order for it to take the appropriate action In instances where an external connection to the ventilator is not provided the MAX232 chip internally pulls this input high via a 400kQ resistor 10 1 6 Audible Alarm A miniature buzzer is incorporated in the circuit interfacing via Q3 to the micro controller An active low signal will activate the alarm buzzer 10 1 7 Warning Bar A schmitt oscillator circuit IC4 with a frequency of approximately 1 Hz is ANDed with the signal DEAD LED from the processor to drive two high intensity Red LEDs which make up the warning bar at the front of the unit 10 1 8 Hardware Power Down This mode of operation is activated by the Stand by button momentary action which when depressed assuming the unit was previously active will shut down all supply rails apart from 5VBACK This supply rail is used to power all components relating to the gas sensor sense circuitry IC2 3 5 6 D10 as leaving the sensors unpowered can incur long start up times In order to prevent possible current drains both the ADC IC5 and the micro controller IC6 are put into a sleep mode via their power down pins With the circuit in this mode of reduced activity the circuit draws approximately 1mA of current The circuit is awoken from this sleep mo
27. ID BATTERY G FINISH MATERIAL TOLERANCES SCALE TITLE DIMENSIONS IN 4 RW ATED gt NTS UNLESS OTHERWISE STATED INOSYS MAIN APR D Remove AU Burrs amp Sharp Edges XX PROJECTION amp lt WIRING DIAGRAM e 232 SELSDUN ROAD SPEC STOCK CODE No TAX 4 THIS DOCUMENT AND THE INFORMATION CHK D DRAWING NUMBER SHEET SOUTH CROYDON CONTAINED HERE IN IS THE PROPERTY OF CN0473 1 1602 98 SURREY Specialised Laboratory Equipment Limited DRN PB No 1 6PL COPYING IN WHOLE OR IN PART IS MOD ISS DATE APP D CD L 3600 1 0181 681 1414 PROHIBITED WITHOUT WRITTEN PERMISSION DATE 16 02 98 MODIFICATION CONTROL DF 1 SLE3600 Page 81 Page 82 SLE Printer Driver PCB CD L3601 1 E 3 4 5 6 7 8 CONTAINED HEREIN 15 THE PROPERTY Gr PRE PRODUCTION REF Specialised Laboratory Equipment
28. IVW 4Av dO aasnnn SNIVW YO 304 ans Sen SNIVWAS 804 UNS bb y 9995N sol sol tol y MS 308 ANIAS 9Nranooaa SER I 2 In T E TE u D ANIOS HLOOLMVS ZHISZ SAVM S HLOOLMVS TVNYSLNI 4 auo szwisz Ag IVNYSLNI P I m Fat See A3 version on page 79 SLE3600 Page 66 14 4 INOSYS Wiring Schematic
29. NO gt NO Analogue Output 120mV to 5V dc for 0 to 50ppm Pin 4 OVISOL 0 Volt isolated signal ground Pin 5 n c Not connected SLE 9 Hardware Overview 9 1 Functional Design Breakdown The hardware has been broken down into three main sub modules consisting of a total of three printed circuit boards PCBs the power module the control module and the printer module Printer Module Printer Mechanism Printer PCB lt gt RS232 Mains Power Main Control PCB PCB 4 User Interface Battery Peripheral Interfaces Power Control Module Module 9 1 1 The Main Control Module The Control PCB is the central hub of the unit containing the micro controller running the embedded software the Real Time Clock RS232 interface circuits LCD and keypad interface internal and external printer interfaces Warning LED oscillator circuits Pump and Solenoid drive circuits along with the Nitric Oxide and Nitrogen Dioxide Gas sensors and their associated amplifiers and analogue to digital converter 9 1 2 Power Module The power module converts either mains or the lead acid battery supply into switchable DC voltages It also incorporates a fused battery charger and isolated 5 volt rail This module consists of the PSU PCB a DPST line switch fuse mains inlet module incorporating a dual voltage selector and associated metal frame work 9 1 3 Printer Module This consists of the P
30. O YES NO due until key Due pressed NO Sensor Replacement Display error Unaffected Replace NO NO NO YES NO due until key SEN pressed Sensor Display error Unaffected Replace NO gt NO NO YES NO Replacement due until key Sen pressed Non volatile memory Display error Unaffected Checksum NO NO YES NO corrupt until key Failed pressed Battery Volts below Display error Unaffected Battery Low YES NO NO YES Battery Low threshold until key pressed Battery Volts below Display error Unaffected Charge Batt NO NO NO NO Battery Dead threshold until key pressed NOW or after 30 seconds unit goes to standby Internal Printer fault i e Display error Unaffected Int Prn Fault NO NO NO NO paper jam until key pressed External Printer fault Display error Unaffected Ext Prn Fault NO NO NO NO until key pressed ADC Failed Display error Unaffected ADC Failed NO NO YES NO until key pressed Clock stopped or dead Display error Unaffected Clock Dead NO NO YES NO until key pressed Time fields outside range Display error Unaffected Time Date NO NO YES NO until key pressed Corrupt Shutoff valve failed Display error Unaffected Stop Valve NO NO YES NO until key pressed Fault PRN No Mains Display error Unaffected PRN mains NO NO YES NO until key pressed needed Ambient Valve Failed Display error Unaffected Amb Valve NO NO YES NO until key pressed Fault Pump Dead Display error Unaffected Pump Failure NO NO YES NO until key pressed Cali
31. TE D 4 27407 THIRD ANGLE PROJECTION 155 MODIFICATION DRN CKD APP CHECKED DATE MATERIAL m OVIBOL 3 8 27 ERI APPROVED DATE me 2 8 07 TITLE mum NOX SYSTEM MAIN CONTROL PCB CIRCUIT DIAGRAM DRG NO A1 676 115893 ISS 3 Page 77 Page 78 2 SLE SLE3600 PSU PCB circuit diagram RY 4 122 3 a BV INT 150R m Mies es e 2 com m MRAW EW Ane 8 4300mA MAXIMUM voon rea 2 7 _ 620 tone ps 2 kir Da SVINT 11D 03 1060uF DORF 2 INTERNAL R2 MAINS INTERFACE UNREGULATED DC VOLTAGE t 57 Fa 10 E VDGRAW BATORAW RT 14A 1N4004 1N4004 i00nF 220R cas cas pu out PULSE OK CARE m 1oonF 2200uF 2200uF ione Toon VEATCH Sr iet T8555CN 14A 1N4001 4 THI INTERNAL SAWTOOTH S UARE WAVE i RE GENERATOR ov INTERFACE WITH E c MAIN NOX 8Y8 4 4 Poe SAWIDOTH 2VSREF Rae 25KHz SAWTOOTH a Le JL poem M DONF Ans a 4 Dv ov SW ITCHED MODE REGULATOR SMR D vs E 5 PL3 FOR 5VMAINS N Ld SEMAINE s y 2 VRAW 8W BOR 9W Tibi 5 IBAT DIS ru Raz PDN NT 44 PDOWN ol eid
32. a Zug TROVIT 20 IS 5 ules me 5 Et 2 Y A0 Shp Hd HE et td e mE Aus SHd qv3H So gersanan B s gt 170 N oT FO AGREE T ON eI Iva TM assy og ED ne ent 8 1119 7081N09 WED 4 A m D HOT 4noozv 89007 AD 98 m 3 eJ AU 2 av a AS ut raa 2 1096415 No 0350 e NOISSIWA3d G3lIISIHUSd 2 SE 7S1I 9 9 SI L va NT ls NTAS suaudib3 dorou0qv pashobeds ux SAS EASTER 9 5 T See A3 version on page 83 Page 68 14 6 INOSYS Exploded view C 0 O 209 Q ex r60 n 29 s 9G GE 9 OO E amp 3AD8V 71 130 335 9SS SITHN 123NN02 S 0271278 CI mas wen au DES mar ara re meer usen mens or _ erozoeazenm 1 snewauszuruee eoe suw 3 erozan zus sr 2 wera merino sexus or c oser sens er
33. ay Note The cables are attached to the rear of the PCB mounting plate and have to be released prior to complete removal of the PCB Page 14 SLE3600 16 With the PCB removed you now have access to the following components Battery 15 Restrictor 16 Fan 17 Valve 1 18 Valve 2 19 Pump 20 Power supply 21 LCD Display 22 SLE3600 Page 15 gt m This page is intentionally blank Page 16 SLE3600 SLE Calibration SLE3600 Page 17 SLE 4 Calibration To calibrate the INOSYS the following equipment and gases are required A supply of medical grade air regulated to give a flow of 1 5 Lpm plus 1 Agas oylinder with pressure regulator containing a certified NO Nitrogen mixture of concentration between 20 and 30ppm nominal 25ppm in pure No A gas cylinder with pressure regulator containing a certified NO Air mixture of concentration between 5 and 15ppm nominal 10ppm in pure Air Connection tubing T Piece for connection tubing Plastic bodied flowmeter Scavenger m DIN These items are available in the form of SLE INOSYS calibration kit part N N4116 SLE also supply a disposable calibration kit part N N4123 The disposable calibration kit contains the following components 1 Adisposable gas cylinder with a fixed flow regulator containing a certified NO Nitrogen mixture of concentration between 20 and 30ppm in pure No 2 disposable gas cylinder with a
34. bration outside limits Display error Unaffected Cal out of NO NO YES NO until key pressed range External printer out of Display error Unaffected Ext PRN No NO NO YES NO paper until key pressed Paper SLE3600 Page 45 gt m This page is intentionally blank Page 46 SLE3600 SLE Technical specification SLE3600 Page 47 SLE 8 Specification Accuracy 4 of the reading or 1ppm whichever is greater To this must be added 196 per fortnight for sensor drift correctable via calibration lt 25 cross sensitivity of to E g 0 25 ppm for an level of 1ppm Precision 296 CV or 0 5ppm SD whichever is greater NO Sensor 0 200ppm Resolution 0 1 ppm for NO 100ppm Range 1 ppm for NO gt 100ppm NO Sensor 0 50ppm Resolution 0 1ppm Range Input Voltage Range s 230V AC and 110V AC Power 38VA Internal Battery 5hrs battery use on a full charge for a fully operational battery Bat 1 YUASA Type NP4 12 12V 4Ah Sealed Lead Acid Input Frequency Range 47 63Hz IEC Safety Category Class Fuses 110 230V Live amp Neutral Fusing Type 315mA T 250V Protection against electric shock Class 1 Degree of protection against electric Type B shock Degree of protection against ingress of IPXO fluids Degree of protection against flammable anaesthetic mixtures with air Oo or NO Not protected Mode of operation Continuous
35. c6 Ice NE666 LM393 LM324 1 4 11 ov ics 40 LM 324 ics 12 ov UNUSED VDERAW R34 ov VOLTAGE MONITORS APPROVED DATE 8 597 REF ECO 574 006 ISSUE RAISED 2 REFECOATA 001 BAZ I amp 6UE RAISED 2 11 97 4 DESIGN ENHANCEMENT BAZ RAISED eser DRAWN DATE BA THIRD ANGLE PROJECTION 155 MODIFICATION DRN CKD APP CHECKED DATE MATERIAL BA 8 5 27 NOX SYS PSU PCB CIRCUIT DIAGRAM DRG NO A1 76 115699 ISS 4 Page 79 Page 80 SLE Wiring schematic CD L3600
36. d 9 e elle M3INIMd TUNSZLNI a SS 5 BI amp E i 8 E BN N AT qe o BUSN3S 2 gt lt ASH 5 341 019 Suis S 3 N35D8LIN air NS SNIVWAG mI EIC Cac pie 2195 2145 6 6 8 El 5 gt 2 E 22 gt EE NVSENZN E Li AND 4 Y MATA avd 221 NINA 109 0096315 ND 4350 2 11 9 9 138 NOILINODdd 38d IT 01 6 8 9 I 5 E I I See A3 version on page 81 Page 67 SLE3600 t diagram SLE3600 14 5 Printer Driver PCB c 140 NE 05 1 5 NDBILVOIJIGUN g6 20 1 31vd S26p3 duvus Suang ny v 171 182 1810 N 1095 1 19 3ivd ssi am Eo Na AJA 86 20 71 T JEZPOND gt S 2 10 v 133HS M38AON ONIAVAG HSINIJ Uu ree HE Ue NVSOvVvIG 1115419 1 49 2015 X dd amp 31 1 SIN 131915 3SIAS3HIU 553730 31111 37925 S3ONva3 101 VISA LUN 3 TOI TT a E Ze Es St t
37. d thus preventing accidental removal This output internally connects to J11 See INOSYS Wiring schematic on page 67 Chart Recorder Outputs Signal Name Purpose Pin 1 NO No Analogue Output Pin 2 OVISOL 0 volt isolated signal ground Pin 3 NO2 NO2 Analogue Output Pin 4 OVISOL 0 volt isolated signal ground Pin 5 n c Not connected Page 54 SLE3600 SLE 9 2 6 Keypad Interface The keypad forms part of the front panel membrane incorporating four buttons and two LEDs namely Battery Status and Mains Power ON It interfaces via a flexi strip with J15n See INOSYS Wiring schematic on page 67 Front Panel Membrane Signal Name Purpose Pin 1 POWERLED A C Power LED Pin 2 STANDBY Stand by Button Pin 3 SW1 Menu Select Pin 4 SW2 Menu Select Pin 5 SW3 Menu Select Pin 6 OV Ground Pin 7 BATLED Battery Status LED Pin 8 n c Not Connected 9 3 Internal Interfaces There are fifteen internal interface cables For the pin out and interconnection of these cables please see INOSYS wiring schematic on page 67 SLE3600 Page 55 SLE 10 The Main Control 5115395 issue 2 10 1 Functional Circuit Blocks This sections breaks the circuit down into functional blocks detailing their purpose 10 1 1 Input Signal Conditioning The Main Control PCB hosts both the Nitric Oxide and the Nitrogen Dioxide sensors These are mounted on the PCB via gold pin sockets and are
38. de by depressing the stand by button again The amber LED on the front panel flashes when the unit is in stand by sleep mode Page 58 SLE3600 SLE 10 1 9 The Fan Interfacing with the Main Control PCB via connector J16 the 5 volt low noise fan 8 21dBA is used to provide ventilation It is powered only when mains is applied to the unit as a majority of power and therefore heat is dissipated in driving the peripherals energised during mains operation e g LCD backlight internal printer battery charging etc 10 1 10 Chart Recorder Outputs The micro controller under software control converts the input voltages from each of the gas sensors into Pulse Width Modulated PWM signals These signals are optically isolated IC9 and then smoothed before passing through a unity gain amplifier to connector J11 Refer to Chart Recorder Outputs on page 54 The effective chart recorder range is 0 gt 5 volts 10 1 11 Battery LED oscillator circuit During instances when the unit is in a stand by sleep mode Refer to Hardware Power Down on page 58 an amber LED flashes on the front panel of the unit in order to indicate to the user the condition of the battery If the LED fails to flash the user will know that the sensors are no longer receiving power and as such long stability times may be incurred upon resubmitting power 10 1 12 Pump Drive Circuit An active low signal to the base of Q10 activates this transistor and thereby the
39. e LCDPINOUT 100nF C52 10K 390R PWM CON LCD CONTRAST Re ns seo y 1 2 2 22 ___sanep 10k 10k 12 73728MHz 2 751 FEET 1 ob oz da m Li fi gt All MET bev ien i 4 C54 cs S e 22pF oF y v Ue H 4 ur RSS BC2128 E 4 En ms w ti D 22 v ki Uco 12k L R35 Ice 5 NTRC OXIDE m zor ris 00 1 7 3 se No SENS un 6 w ov t 1 Le mo w m wa vor N e TM NO AUXIARY 2 mo 2 A5 BACK 2 8 Lore cens en wF Tie 12 NO2SENSE 3 ADC CH2 SCLK NOZAUXIARY 4 w 0 80 SOL C49 CH3 0 ADC IN R31 R32 Ed ES AMBTE MP 5 cha oo 2 OUT 100k 100k an dn 15 E ws 2 ADCCS CHARTRECCFDER ws Pus PUIS 7 a 65 conv 1 VMANS o om o wv 22 WLEDSUP1 m ak cH eoc w WARN LED WARNINGLEDS ar E m se2 2 NO aux 9 M P 4 5 m 5 WLEDSUP2 s A o ty LX RS v 5 i pr Ro Us 06 R57 n OP291GP J R s EN 25 Ld AM VREF EN lt 10A 15RA POWER 2 wxo vaer FE ur LED 13 18 STANDBY J15 A2 AGND uF 100nF 100nF 22uF 100nF 100nF w gt m w 0 50 E J15 KEYPAD ses 5 y No2 CNT re w wv
40. ected Paper not loaded Faulty printer unit Check cable and rectify Load paper Replace printer unit Fan not operating Internal cable not Check cable and rectify connected Faulty fan Replace fan Clock Dead Battery flat See section 5 8 on page 35 Page 42 SLE3600 7 Alarm Messages SLE Alarms are warning signals displayed to the operator to indicate either that the NO or NO levels have crossed programmable limits or that there is a problem with the unit The audible alarm may be temporarily silenced with the alarm mute button however visual alarms may not If the NO or NO high alarm is activated then the NO supply solenoid will cut off the NO supply to the circuit once the gas concentration has been returned to within the chosen parameters the user must press the alarm reset button to return to normal operation The software will prevent the user from setting illogical alarm threshold values On powering up from Stand by limits will be reset to their defaults In addition to an audio visual indication of an alarm being triggered the limit for the actual alarm triggered will flash on the LCD Fault condition Fixed alarms Warning Action Low battery LCD and Audio Charge Unit System malfunction Flashing Light Bar Consult SLE or Distributor Corruption of data held in non volatile memory LCD Checksum failed The User can choose to enter
41. ed down signal is used to measure battery voltage when power is being supplied by the battery VMAINS Derived from VDCRAW this potted down signal is used to indicate the presence of Mains voltage SLE3600 Page 61 SLE 13 RS232 Interface Note In order for the INOSYS RS232 interface to operate correctly firmware version 2 00 release 2 must be installed An RS232 connector is provided at the rear of the unit for connection to a PC The serial port is set to communicate at 9600 baud 8 data bits 1 start bit 1 stop bit no parity The unit will output filtered time stamped Patient NO Patient NOs Ambient NO and Ambient NO as well as ADC raw data readings to the serial port every trend interval The trend interval for serial output will be as defined for the printer trend interval however the serial output will continue regardless of whether the printer output is enabled or not Unavailable results i e results obtained during the settling period of the sensor will not be sent 13 0 1 Data Collection Connect the INOSYS to a PC running Windows 95 98 with a standard PC serial cable and start your Windows communications package The example below describes data collection using Hyperterminal which is supplied as standard with Windows 95 98 Start Hyperterminal enter a session name and click ok In the Phone Number box click on the down arrow for Connect using and select Direct to COM1 Click
42. eet 2 of 2 O SLE COMPARITOR BATTERY DISABLE EXTERNAL PRINTER INTERFACE LI AMBIENT TEMPERATURE SENSE See A3 version on page 77 SLE3600 Page 65 L 14 3 INOSYS PSU ircuit diagram 660311 1828 v ON OUG Lindo 424 054769 asomo ssi ve IT OE avon cu SYOLINOM S5 v L 10A He dives TOS itive oui LINOYIO ZOVVHO cw Epl wawo meiden Five DOTE Hiro EON to a 17 jl 222 HOVLIOA aaLyIneaann OVAYZLNI SN
43. fixed flow regulator containing a certified mixture of concentration between 5 and 15ppm in pure Air 3 Calibration connection tubing When using the SLE INOSYS calibration kit refer to the instructions with the kit It is recommended that calibration should be carried out in a well ventilated room and that the exhaust gas is fed into a scavenging system If using a SLE calibration kit N4116 use the calibration procedure on page 20 If using a SLE calibration kit N4123 use the calibration procedure on page 26 Regardless of which kit is being used the INOSYS should have its flow through confirmed to be 300ml minute See Flow Checking on page 19 If you get lost at any time during calibration switch the unit off and start again Page 18 SLE3600 Ca SLE 4 1 Flow Checking Before calibration the flow through the Inosys should be checked to be 300ml minute Note Either disconnect the delivery regulator or open the regulator fully to allow flow before attempting the 300ml minute check Connect the NO OUTPUT to the PATIENT INPUT with the supplied tube SIDE VIEW Patient input Flow Checkina tube in Calibration kit Fully close the fine flow control on the front of the unit Clockwise Fully open the coarse flow control on the front of the unit Anticlockwise 0 500 ml min Switch on the Inosys and observe the flow rate on the coarse flow gauge It will be necessary to reset the low ala
44. is Flow Checking Tube Patlent Input Top View of Inosys Press the Span button centre f 4 NO Gas Supply Press the NO button left Use the Up left and Down centre buttons to enter the concentration of the calibration gas Concentration of gas indicated on gas cylinder Press the Exit button right Up Down Exit NUI CE Turn on the gas cylinder using the fixed flow regulator preset at 1 5 LPM Wait 1 minute for the instrument NO reading to stabilise Press the Start button left The unit will display Calibrating NO and then Span Done Or if incorrect gas is used the unit will display Cal out of range Mur Any O Page 28 SLE3600 Press the Continue button left The unit will ask if the user wishes to save the settings or not SO O Press the Yes button left The unit will then ask if the user mo wishes to restore the High NO Alarm limit as this may be SEC CJ adjusted to avoid sounding alarms 400 _ Restore NO Lim METETE Choose No button centre if calibration procedure is to ECT continue i Choose Yes button left if calibration procedure is complete Close the NO supply on the bottle The Nitric Oxide is now calibrated 4 3 3 Nitrogen Dioxide Calibration Flush the unit with air Connect the supply of medical grade air regulated to give a fl
45. minutes SLE Zero Span Exit O Press the Start button left The unit will display Zeroing Start Abort NIIT O It is possible to abort by pressing abort before the unit displays Zeroing Done Press the Continue button left The unit will ask if the user wishes to save the settings or not PET D Press the Yes button left The unit will then ask if the user wishes to restore the Low NO O O Alarm limit as this may be adjusted to avoid sounding alarms ODO Restore NO Lim Um eco Choose Yes button left or No button centre pue Yes is recommended Close the air supply Once the tubing has de pressurised fully close the pressure regulator and disconnect supply Zero Calibration is now complete SLE3600 Page 21 SLE 4 2 2 Nitric Oxide Calibration Use a certified NO Nitrogen mixture of concentration between 20 and 30ppm NO in pure No Agitate or roll the cylinder for at least 5 minutes before use to ensure that the gas is well mixed Connect NO Nitrogen mixture turn on the gas cylinder and adjust the flow rate to 1 5LPM read on the plastic flow meter Wait 1 minute for the instrument NO reading to stabilise Note During NO calibration the NO reading will fluctuate Ignore this Flow Meter Tee Piece Scavenger al 4 NO gas supply Patient Input
46. nd negate the need for bi polar devices The capacitors C50 and C51 offer a degree of protection against noise spikes transients 10 1 1 4 The Analogue to Digital Conversion The voltage signals from the Sense and the Auxiliary sense circuits for each of the gas sensors are fed into the differential inputs of an ADC12138 105 The ADC12138 is 12 bit successive approximation Analogue to Digital converter with serial l O and configurable 8 channel input multiplexor The ADC has a conversion clock of 7 3728MHz giving a conversion time of approximately 6ms The ADC also receives signals from the each of the sense circuit reference voltages 3 5 1 3 and 1 volt along with the output from the ambient temperature sensor sense circuit AMBTEMP 10 1 1 5 The Battery Temperature Sensor This is a precision centigrade temperature sensor LM35DZ which outputs a linear voltage with respect to temperature of 10mv C The output signal is fed into a non inverting amplifier IC3 LMC6064 which has a gain of 5 7 The output of this amplifier is then fed into the ADC IC5 This gives an effective reading range of 0 gt 87 C The temperature sensor is currently used to measure the battery temperature 10 1 2 The Micro controller and its peripherals The micro controller is clocked at a frequency of 7 3728MHz The 8 bit data bus is also configured to act as the least significant 8 bits of the address bus The chip interfaces via its address and data buses
47. new values or use defaults Calibration overdue after a warning This will not prevent instrument operation LCD on startup Calib Due Calibrate sensors See Calibration on page 18 Sensor replacement overdue after a warning This will not prevent instrument operation LCD on startup Replace Sen Replace sensor Qualified suitably trained personnel only If an internal printer is present and selected alarm events will be printed and date and time stamped SLE3600 Page 43 Q SLE 7 1 Alarm State Table Alarm Current Shut off Message Audible Limit Flash Error Warning Bar Condition valve Displayed Warning Printout NO goes above limit No user OFF after set NO High ON YES YES YES intervention delay NO above limit Mute key OFF after set NO High OFF after YES NO YES pressed delay delay NO above limit Reset key OFF after set None OFF YES NO YES pressed delay NO falls back below high Already reset ON None OFF NO NO NO limit NO falls back below high NOT reset OFF after set NO High OFF YES NO YES limit delay NO Below low limit No user ON NO High YES YES YES YES intervention NO Below low limit Reset key ON None NO YES NO NO pressed NO returns above low Already reset ON None NO NO NO NO limit NO returns above low NOT reset ON NO High NO
48. oLE 3600 INOS YS Service manual Inhaled Nitric Oxide System SLE When the smallest thing matters SLE Contact Information SLE Limited Twin Bridges Business Park 232 Selsdon Road South Croydon Surrey CR2 6PL Telephone 44 0 20 8681 1414 Fax 44 0 20 8649 8570 E mail admin sle co uk E mail s should be addressed to the Service Manager Web site www sle co uk All rights reserved No part of this publication may be reproduced stored in any retrieval system or transmitted in any form or by any means electronic mechanical photocopy recording or otherwise without prior permission of SLE Copyright SLE 1 02 2010 Manual SM0012 Issue Page 2 SLE3600 Contents ds ona o rn nA 6 1 1 References and Related Documents iii 6 1 2 Terms and 5 6 Prologo 8 2 1 Front Panel Description oat orte pon qoe nn nr dun 8 Rear Panel Descerpl n ac a aan 9 Accessing the internal components of the INOSYS 12 rer en ee otra RE D 18 4 1 RIOW Check eines a lates natal te 19 4 2 Calibration procedure for SLE kit 116 20 4 3 Calibration procedure for SLE kit 123 26 5 Maintenance 32 5 1 Elec
49. ow of 1 5LPM to the patient input See Zero Calibration on page 26 Use a certified NO Air mixture of concentration between 5 and 15ppm in Air Agitate or roll the cylinder for at least 5 minutes before use to ensure that the gas is well mixed Connect NO Air mixture and adjust the flow with the pressure regulator to 1 5LPM read on the plastic flow meter Because of the absorption characteristics of NOs wait minutes for the instrument reading to stabilise Note During NO calibration the NO readings will fluctuate Ignore this ff 4 Gas Supply Flow Checking Tube Patfent Input Top View of Inosys SLE3600 Page 29 SLE Press the Span button centre DIO Press the NO button centre NO Ci O Use the Up left and Down centre buttons to enter the concentration of the calibration gas i LEO Press the Exit button right Up Dom Ext O O SE Press the Start button left The unit will display Calibrating Star ne NO and then Span Done Or if incorrect gas is used the O O unit will display Cal out of range CARDO Press the Continue button left The unit will ask if the user wishes to save the settings or not YO O Press the Yes button left les The unit will then ask if the user wishes to restore the O O Alarm limit as this may be adjusted to avoid sounding alarms
50. pump The pump drive voltage is 4 6 volts 10 1 13 Solenoid Drive circuits There are two duplicate solenoid drive circuits present one to drive the Gas Stop Valve and one to drive the Patient Ambient Change over valve Each is activated by applying an active low signal to the base of Q11 or Q12 The valves are energised at 4 6 volts Measuring the solenoid current gives the facility to determine whether a given solenoid is fitted and whether the electronics have successfully activated it 10 1 14 External Printer Driver Attached to the micro controller data bus are the latches IC17 18 and 19 which make up part of the optically isolated external printer port 10 1 15 Internal printer The Main Control PCB interfaces with the Printer PCB 5114641 via connector J20 The Printer PCB is driven from 5VMAINS and cannot be driven when the unit is powered purely from battery Information is latched to the printer head via IC16 SLE3600 Page 59 SLE 11 The Internal Printer PCB 8114641 issue 1 Refer to Printer Driver PCB on page 68 and section 3 1 15 internal printer on page 59 This PCB incorporates the MTP 201 series Seiko thermal character printer The printer has the following specification Principle Heat sensitive serial dot system Printing Direction Left to right with automatic end of line paper feed Home position detection Mechanical switch used to generate the signal PHOME Character size 2
51. ral passive components This circuit is designed to operate the sensor in a biased mode of operation The Sense and Auxiliary electrodes are held at 300mV above the Reference electrode To reduce long start up times the Op Amp is supplied via 5VBACK a supply which remains on even when the unit has been disconnected from Mains as long as the battery is in an operational state See The PSU PCB 5115398 issue 3 on page 61 The Op Amp is configured to act as a current to voltage converter with the sensor acting as a current sink The gain of the conversion is effectively controlled by the resistors R15 for the Sense electrode and R16 for the Auxiliary electrode The capacitors C42 and C49 offer a degree of filtering against noise spikes The LMC6064 has an extremely low supply current 76mA for all four amplifiers coupled with extremely low input offset voltage 100mV and low input bias current 0 010pA Page 56 SLE3600 SLE 10 1 1 3 The Nitrogen Dioxide Sensor The Inosys uses the MND 1 sensor the specification for which may be found in the accompanying Appendices The Sense Circuitry This is a similar circuit to the Nitric Oxide sense circuit described above utilising the same type of Op Amp IC2 3 powered 5VBACK The Op Amp is configured to act as a current to voltage converter with the sensor acting as a current source The Op Amps negative input is biased with 3 5 volts in order for the output signal to remain positive a
52. rinter PCB and support structure The Printer PCB has all the necessary power drivers and voltage regulation to drive the PCB mounted 7 head thermal printer module The actual signal driving however is controlled by the micro controller on the Main Control PCB SLE3600 Page 51 SLE 9 2 External Interfaces The unit has five external electrical interfaces two pneumatic and four push buttons 9 2 1 Mains Inlet Module This is a standard IEC 3 pin A C mains inlet module protected by 2 x 315mA fuses This integrated module incorporates a 230 115 volt voltage selector DPST switch dual pole fusing as well as a medical mains filter 9 2 2 RS232 Connector This 9 way male D connector J18 See INOSYS Wiring schematic on page 67 allows the instrument to be connected to another device e g PC via a standard RS232 cable RS232 Signal Name Purpose Pin 1 n c Not connected Pin 2 RXD RS232 input serial data Pin 3 TXD RS232 output serial data Pin 4 n c Not connected Pin 5 GND OV isolated signal ground Pin 6 n c Not connected Pin 7 n c Not connected Pin 8 RTS Ready To Send Tx2 Pin 9 n c Not connected CASE CHASSIS connector casing Page 52 SLE3600 9 2 3 Printer Port SLE This is a standard 25 way female D connector J24 See Main Control PCB on page 64 allowing the unit to interface with any printer supporting PCL3 protocol
53. rm value of the NO to zero The flow gauge should read approximately 300ml If the flow gauge reads below 280ml or above 330ml adjust the internal flow valve located on the battery housing beneath the PCB See Accessing the internal components of the INOSYS on page 12 300ml SLE3600 Page 19 SLE 4 2 Calibration procedure for SLE kit N N4116 4 2 1 Zero Calibration With the unit switched off connect the medical grade air supply to the Patient Input via the flowmeter and the tee piece Flow Meter Tee Piece Scavenger N al Medical Air Supply Patient Input 2 Top View of Inosys Turn on the medical air supply and adjust the wall pressure regulator until the flow is 1 5LPM as read on the flowmeter Connect the INOSYS to a suitably grounded power source Switch on the unit at the rear and then press the standby switch on the front See Front Panel Description on page 8 After 30 seconds the Connect Ventilator Alarm alarm will sound when it does press Continue left and then Yes centre The NO Low Alarm will then sound press Reset left Press the Setup button centre were seu Press the More button right Press and hold the unmarked centre button for 5 seconds Lco m IPS Page 20 SLE3600 Press the Zero button left The unit will display Purge System Flush with air for 3
54. rom the mains supply Also disconnect the NO supply and any attached ventilator DO NOT use any strong solvent cleaners CUATION Do not allow moisture to enter the inside of the unit Electronic malfunction may result DO NOT wash or immerse in water or other liquids 5 6 Sensors SLE recommend that the sensors are calibrated prior to each use or every 28 days the unit will advise the user when this is necessary on the LCD start up screen See Calibration Procedure for details on page 18 for details The NO and NO sensor cells must be replaced once a year The unit will advise the user when this is necessary SLE3600 Page 33 EA SLE 5 7 Setting Time date This feature allows for the setting of the battery backed up real time clock This clock is necessary for the unit to trace time since the last calibration and sensor change To access the Time Date menu Follow the following sequence From the main menu press the Print button right Press and hold the unmarked right button for 5 seconds Press the Setup left button Press the Time button The menu displays the current time and date in the format hh mm dd mmm yy hh hour between 0 and 23 mm minute between 0 and 59 dd day between 1 and 31 mmm month between Jan and Dec yy year between 97 and 50 Values between 0 and 50 indicate 2000 to 2050 Press the Next left button to step through the time and date The elemen
55. s with no printer Replacement procedure for NO and NO sensors Serial N affected All Side wall strengthening Serial N affected All Technical Bulletin N9 TB980303 Software release version V2 00 r2 Serial N affected 060101 to 060126 excluding Serial N 060118 All of these information letters and technical bulletins are available by contacting the SLE Service Department Page 88 SLE3600 Oa SLE 17 Issue Revision Record Issue 1 Initial issue Issue 2 CN 760 Issue 3 1418 SLE3600 Page 89 gt m This page is intentionally blank Page 90 SLE3600 SLE SLE reserves the right to make changes without prior notice in equipment publications and prices as may be deemed necessary or desirable SLE3600 Page 91 SLE CEo120 SLE Limited Twin Bridges Business Park 232 Selsdon Road South Croydon Surrey CR2 6PL UK FR 44 0 20 8681 1414 A service sle co uk 3 44 0 20 8681 4517 O www sle co uk
56. t NO Air mixture and adjust the flow with the pressure regulator to 1 5LPM read on the plastic flow meter Because of the absorption characteristics of NO wait 3 minutes for the instrument reading to stabilise Note During calibration the NO readings will fluctuate Ignore this Flow Meter Tee Piece Scavenger 4 NO gas supply Patient Input Flow Checking Tube Top View of Inosys Press the Span button centre Zero Sp DIO Press the NO button centre NO __ Exi Ci dE Use the Up left and Down centre buttons to enter the Ga Stee concentration of the calibration gas Suge ECHT Press the Exit button right Up Dow Ext O On Page 24 SLE3600 Press the Start button left The unit will display Calibrating me NO and then Span Done Or if incorrect gas is used the debt unit will display Cal out of range ARO Press the Continue button left The unit will ask if the user paeem wishes to save the settings or not Eo O Press the Yes button left The unit will then ask if the user wishes to restore the NO gt O O Alarm limit as this may be adjusted to avoid sounding alarms APODO Restore NO Lim Gam J Choose Yes button left or No button centre epe Yes is recommended Press the Exit button right Zoo Span O Din Note If a prin
57. t selected for change flashes Use the UP button to increase the selected value When the desired value is reached use the Next button to select the next element to change When the desired values are set press the Exit button to leave the Time menu If an invalid time or date has been entered the Invalid Time Date menu will be displayed Press continue to re enter the time and date The Confirm Time menu will now be displayed Pressing the Reject will return you to the Time menu where any further changes can be made Pressing the Accept button will program the clock with the new time and date settings Press the Exit right button Page 34 SLE3600 SLE 5 8 Clock Dead If the internal battery has been allowed to become flat when the unit is turned on a alarm message Clock Dead will appear This means the unit has no record of the current time or date This also affects the calibration cycle of the unit and will cause the unit to prompt re calibration of the sensors To clear the clock dead alarm use the following procedure Step 1 Connect the unit to a suitably grounded power supply and leave the unit in stand by mode for 5 hours to recharge the battery Step 2 Turn on the unit and disable the VN alarm so you reach the main menu Step 3 Carry out the Time Date setting procedure already described in section 5 7 on page 34 Step 4 The unit will now display calibrate NO and NO sensors as
58. ter is attached the calibration information will be printed after completion of each calibration Close the supply on the bottle Once the tubing has de pressurised fully close the pressure regulator and disconnect the bottle The Nitrogen Dioxide is now calibrated Connect the supply of medical grade air regulated to give a flow of 1 5LPM to the patient input and flush the unit with air Disconnect air supply The unit is now ready for use SLE3600 Page 25 C A e SLE 4 3 Calibration procedure for SLE kit N N4123 4 3 1 Zero Calibration With the unit switched off connect the medical air supply to the patient input via the flow checking tube 1 Medical Air Supply Flow Checking Tube Patlent Input Top View of Inosys Open the supply of medical grade air regulated to give a flow of 1 5 LPM to the patient input Connect the INOSYS to a suitably grounded power source Switch on the unit at the rear and then press the standby switch on the front See Front Panel Description on page 8 e After 30 seconds the Connect Ventilator Alarm alarm will sound when it does press Continue left and then Yes centre The NO Low Alarm will then sound press Reset left Press the Setup button centre Mode Soup QU CAE Press the More button right Cum ean DO Press and hold the unmarked centre button for 5 seconds Lc
59. the regulator is fully off turned fully anti clockwise and the gas cylinder is NO gas with a pressure of 100 200 bar nominal concentration 1000ppm NO Connect regulator to gas cylinder hand tighten and then apply a quarter turn more with a spanner to ensure a good seal Step 2 Connect to INOSYS and switch the unit on SET low NO alarm to zero see User Manual and connect Patient Input to NO output with calibration kit tube Step 3 Vent the exhaust out of a window SLE3600 Page 39 SLE Step 4 Step 5 Step 6 Step 7 Step 8 Step 9 Step 10 Step 11 Step 12 Step 13 Page 40 Open the gas cylinder tap If there is a leak close the tap Ensure the white seal is fitted tighten the connection and open the tap again Increase the output pressure to 14 psi maintaining a flow of 300 ml with the coarse flow regulator on the front of the INOSYS Increase the output pressure and record the maximum This should be no more than 3 bar if the regulator fails then replace Close the gas cylinder tap Once the tubing has de pressurised fully close the pressure regulator and disconnect from the INOSYS Remove calibration kit tube Block the end of the hose that would normally connect the back of the INOSYS with the blocking cap Open gas cylinder tap If there is a leak close tap tighten connection and open the tap again Set output pressure of regulator to 1 bar Use the INOSYS as a Sniffer
60. the service manual for your ventilator 5 3 Other Checks All cables tubes and fittings should be checked periodically If they appear damaged or faulty they should be replaced The hydrophobic filter should be checked periodically and changed or emptied if required When the warning Calibration Overdue is displayed the sensor s must be re calibrated See Calibration procedure on page 18 When the warning Replace Sensor is displayed the sensor s must be replaced Note That this warning will be displayed at 12 monthly intervals and must be adhered to In the event of a low NO alarm the cause e g water in patient sampling tube stuck patient ambient valve blocked or kinked patient input tube should be investigated prior to increasing the NO flowmeters to ensure that the concentrations of NO delivered to the patient is no higher than thought administered The flow meters on the front panel of the INOSYS can be inaccurate if they are not vertical or subject to acceleration Page 32 SLE3600 SLE 5 4 Replacement of Fuses Switch of the unit and remove the power cord Insert a suitable screw driver in the slot provided and gently ease the fuse holder out Replace the fuse with those of the same type and rating Push the fuse holder back in position ensuring it is orientated for the correct voltage setting 230V ac or 115V ac 5 5 Cleaning Before cleaning the exterior of the unit the power cord should be disconnected f
61. then clamped in place via a polarising plate The polarising plate prevents the two sensors which share pin configurations from being wrongly located in the PCB 10 1 1 1 The Gas Sensors The simplest form of the sensor operating on electrochemical principles has two electrodes Sensing and Counter separated by a thin layer of electrolyte and connected by a low resistance external circuit Gas diffusing into the sensor is reacted at the surface of the Sensing electrode by oxidation or reduction causing a current to flow between the electrodes through the external circuit The current is proportional to the concentration of gas this in turn causes a change in the potential of the Counter electrode polarisation The INOSYS utilises a four electrode sensor This has two additional electrodes namely the Reference and the Auxiliary The Reference overcomes non linearity effects caused by the Sensing electrode s bias voltage being effected by high concentrations of gas and thus high current flow Where as the Auxiliary electrode overcomes temperature variations The Auxiliary electrode is in effect in the same environment as the Sensing electrode As it does not respond to gas any drift seen is due primarily to temperature 10 1 1 2 The Nitric Oxide Sensor The Inosys uses the MNO 1 sensor the specification for which may be found in the accompanying Appendices The Sense Circuitry This consists of an LMC6064 Quad Op Amp IC2 and its periphe
62. to 64K 8 of EPROM and up to 32K 8 of volatile RAM 8K 8 fitted as standard Further static memory requirements are fulfilled in the 64 8 Timekeeper SRAM IC7 MK41T56 which interfaces with the micro controller via a two wire serial bus I2C A constant power supply to the Timekeeper is provided in the form of 5VBACK in the event of removal of this supply the contents of the SRAM will be kept for a few minutes via the charge stored on the capacitor C7 This device is clocked by a built in oscillator requiring a 32 768KHz crystal XL2 The micro controller may be forced into reset by depressing the reset switch SW1 accessible at the rear of the unit SLE3600 Page 57 SLE 10 1 3 Serial Communications The micro controller is able to communicate with a host computer via its optically isolated RS232 port Baud rates up to 19 2K Baud are possible in the format of 8 bits no parity and 1 stop bit This is achieved via the MAX232 chip IC14 10 1 4 The LCD The LCD module 128 64 dots interfaces with the Main Control PCB via connector J13 A PWM signal from the micro controller PWM CON allows the LCD s contrast to be controlled via the key pad The back light is only lit during mains operation in order to reduce power consumption when the unit is operated in battery mode The OP AMP IC27 ensures that the supply to the back light is stable 10 1 5 The Ventilator Alarm signal The MAX232 chip IC14 interfaces via J25 to an external SL
63. to a suitable earthed hospital grade mains power supply and switched on at the rear for at least 5 hours every 2 3 months However SLE strongly recommend that the unit is left in stand by mode and connected to the mains supply when in use and when stored If the battery is not charged on a regular basis SLE recommend the battery be changed once a year 5 11 Replacement of battery Remove the top cover using the special key provided Remove the exhaust tubing and the dual barb connector Remove the tubing to the C sensor Unclip the PCB assembly and lift it away Undo the 4 screws holding the bracket marked BAT1 and remove the bracket Disconnect the battery and install the replacement Connect the battery and restore bracket marked BAT1 Re seat PCB assembly ensuring it is held in place Connect NO tubing Fit the dual bard connector and connect the exhaust tubing Note After battery replacement or if the battery is allowed to become discharged the unit must be left in stand by mode and connected to the mains supply for 4 days to allow the sensors to stabilize Before use the unit must be re calibrated See Calibration Procedure for details on page 18 for details 5 12 Service It is recommended that the following checks are carried out once a year in accordance with BS EN 601 1 1990 Insulation Resistance protective Earth continuity Earth leakage current Enclosure leakage current 5 12 1 Regulator Test Procedure Step 1 Ensuring that
64. trical 32 5 2 Ventilator Alarm 32 5 3 Other Checks 0 2 0200020 0 6006 enn 32 5 4 Replacement of FUSES 33 BS GCICANING NS 33 5 6 SENSOrS s eeu A not 33 5 7 Selling TIIme LAN ol on rds ta iactu ii dass rede 34 5 8 Clock Dead eere hern 35 5 9 Replacement of Sensor 37 A ane 39 5 11 Replacement of battery erinnere 39 AS A EE nh A 39 6 INOSYS Trouble ee 42 Messages aaa 43 7 1 Alarm State 44 POC ION ee re 48 9 Hardware Overview 2 51 9 1 Functional Design Breakdown nac Ai mu 51 9 2 External Interfaces a a dauan 52 9 3 Internal Interfaces ii iiiiiiereeereeeecerecereneeneeecereenee 55 10 The Main Control PCB 8115395 issue 2 56 10 1 Functional Circuit 00000 56 11 The Internal Printer PCB 5114641 issue 1 60 12 The PSU PCB S115398 issue een 61 13 RS232 Interface
65. trol PCB Power Supply PCB Assembly NO Sensor Assembly NO Sensor NO Sensor Assembly Sensor Upper Unit assembly PL25 to 3 way DIN socket Cable assembly N 4 PL11 to 5 way DIN socket Cable Assembly N 5 PL23 to 3 way valve Cable Assembly N 7 PL25 PL11 PL23 PL21 to pump Cable Assembly N 8 PL10 to PL1 5V isolator Cable Assembly N 9 PL9 to PL3 power cable Cable Assembly N 10 PL2 to battery cable Cable Assembly N 11 PL19 to temp sensor cable Cable Assembly N 12 PL13 to LCD miniature fan cable Cable Assembly N 15 SLE3600 N4115 556 N4115 670 N4105 01 N4105 11 N4105 21 N4105 31 T2149 N4112 16 N4117 11 SLE3600 SLE Earthing cable Cable Assembly N 3 Front Panel Assembly BS 14 regulator ptfe washer Din 1 regulator ptfe washer Din 8 regulator ptfe washer Din 14 regulator ptfe washer Special tapped spacer Hexagon nut M18 x 10 Cover release key green Page 71 gt m This page is intentionally blank Page 72 SLE3600 Ez SLE A3 circuit Diagram Appendix SLE3600 Page 73 gt m This page is intentionally blank Page 74 SLE3600 SLE Main control PCB circuit diagram Sheet 1 of 2
66. ts SLE3600 Page 11 SLE 3 Accessing the internal components of the INOSYS 1 Disconnectall gas and electrical supplies to y the INOSYS gt 2 Place the unit on clean and level surface 3 To remove the top cover a key has be inserted into slots to release the internal clips 4 Insert the key into the indicated slots View Right hand side 5 Asthe key is inserted apply gentle upward pressure on the case to separate the two halves Page 12 SLE3600 6 Insert the key into the indicated slots View Left hand side 7 If the unit is fitted with a printer disconnect the printer ribbon cable before the cover is removed 8 To remove the sensor cells see section 5 9 on page 37 for details 9 Toremove the PCB first disconnect the inlet 1 and outlet 2 tubing to the sensor cells 10 Disconnect the connectors mounted in the following locations A B and C SLE3600 Page 13 SLE 11 Disconnect the connectors at J14 1 J15 2 J12 3 J13 4 J16 5 J19 6 See 14 4 INOSYS Wiring Schematic on page 67 for further details 12 Disconnect the connectors at J10 7 J9 8 See 14 4 INOSYS Wiring Schematic on page 67 for further details 13 Remove the chassis earth strap 9 14 Disconnect the connectors at J25 10 J23 11 J21 12 J22 13 J11 14 See 14 4 INOSYS Wiring Schematic on page 67 for further details 15 The PCB can now be lifted aw
67. ures the cells to the manifold Step 3 Discard the sensor and refit the new sensor cell to the manifold Note new sensors may have a link spring fitted between two of the electrical contacts This link has to be removed as it will damage the sensor if it remains in place and the unit is powered up Step 4 Reconnect the silicone tubing to the sensors cells Refit the cells to the PCB and reconnect the outlet and inlet connections Replace the top cover SLE3600 Page 37 SLE Step 5 The INOSYS unit now has to be told that new sensor cells have been fitted To do this use the following procedure From the main menu press the Print button right Press and hold the unmarked right button for 5 seconds Press the Setup left button Press the Sensor left button Press the NO left or NO centre buttons to select the required sensor cell Press the Replaced left to indicate a new sensor cell has been fitted Press Yes left to confirm NO right abort setting Press Exit right to return to the main menu Step 6 Do not use the unit for 4 days after sensor replacement to allow the sensors to stabilize During this period the unit must be connected to the mains supply and left in stand by mode The unit must then be re calibrated See Calibration Procedure on page 18 for details Page 38 SLE3600 SLE 5 10 Battery 5 10 1 Charging The unit should be connected
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