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MAiNTENANCE AND SERVICE MANUAL

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1. meme or vreine 7 1 atu er SIGNAL INPUT A te COMPONENT SIDE HOTES ENSURE THE TURNS L3 00 NOT COME IN CONTACT WITH EACH OTHER 09 CONTACT THE PCS 2 ASSEMBLE CONNECTOR MEM 23 AND AS SHOWN TRIM PINS TO PROIRUGE 030 ON COMPONENT SIDE BOARD AND SOLDER IN PLACE THE NUTS ARE TEMPORARY ONLY AND WILL BE REMOVED WHEN IMSTALLEG THE ASSEMBLY LEVEL 3 JEST FINISHED ASSEMBLY AS PER FOLLOWING APPLY 0 gt IV 2MH7 PULSE TO SIGNAL INPUT SIGNAL COAX 58 gt ADJUST Ri 3C 1 SEE 2MHz CLEAN SIGNAL 30 GATE INHIBIT INPUT 16Msec WIDE REPEATS EVERY 130Msec 500 SQUARE WAVE BF CURRENT ORAIN 5 120 20 8 50 3 4 54 8 PLACE TESTED ASSEMBLY iM ANTISTATIC BAG AND LABEL HIGH SPEED AMP AS TESTEO BA P23 PROCEDURE BOARD ASSY GCHORCD GLA 225 Figure 7 64 8 DOCUMENT NO 65 23 FEET TF 1 CHOKES 11 L2 14 15 16 ANO RESISTOR R7 NOI INSTALLED see LT ___ 273 1 GES joar j ESCHEC eee i see 2 CHOKES 11 L2 L4 15 L6 HAVE BEEN REMOVED AND REPLACED fo MOS na Saree oes Se BY CONNECTING TRACK HIGH SPEED AMP BOARD SCHEMATIC CO
2. HSTRUUCIS INC RENS LAMP WIRING HARNESS ASSY 5 BAG AND LABLL WITH CURRENT ORAWING HUMBER AND REV AS PER THIS GOCUMENT COMPUTER BAWI 50 mm OER MR wt accesses CASLE THRU STRAIN RELIEF AS SHOWN 2 IDC WREMOUNT SOCKET TAKA PART NO DCSCRIPTION ___ j SCALE 1 1 NEXT ASSY PSCHE 61996 Whey rot de be DIMENSIONS IN m aber coping os fer IF DUAL DMS inches 230 220 8 BA C231 A C230 BA C230 B BA C231 C230 8 LOOP CABLE THRU STRAIN RELIEF AS SHOWN BA W7E DOCUMENT NO BLACK STRIPE NOTES 1 ON DECONNECTOR END GROUND WIRE AND USE PINS 2 TO 16 2 LABEL PART NUMBER ON GROUND SIDE OF CABLE WITH PERMANENT MARKER 3 AND LABEL WITH THE CURRENT DWG NO AND REVISION AS SHOWN ON THIS DOCUMENT 4 DURING INSPECTION USE CABLE TESTER AND TEST 100 OF CABLES INSTRUMENTS INC SX C vere MOTOR CONNECTORS CABLE ASSY DTE TRACWOMS 4 1 32 COMPUTER CENCRATED DRAWING FILENAME BA W76 DWG 40 PART 17611 X 8A W77 A 117 BA C23
3. design en sag bes ie with ite y 3 8 F Series haus amp where mustard of se high vaitamqe fe mondered by 8 ine sppexdna Gefesen Cupid gin 9 owes Signal Grand pen 5 informations is an applicata apte AP ERES 98 wees o Chassis Mount meta parkuna amo 81 fay BSE vibration serias 85 BREWER MKIII Spectrophotometer Maintenance and Service Manual oae e ELSES REPRE 5 RRS 59 Figure 7 4 5 BREWER Spectrophotometer Maintenance and Service Manual BREWER MKIII Spectrophotometer Maintenance and Service Manual 61 BREWER Spectrophotometer Maintenance and Service Manual BREWER REFERENCE DOCUIVENTATION Section 7 Section 7 6 Optics 76 1 Instrument Optics 764 1 7 6 2 Foreoptics FOI 7621 LampF96 7622 IRIS Actuator F106 7623 Zenith Die F114 7624 763 Spectrometer 5120 7631 Slitrresk Motor Wiring diagram 7632 Spectrometer Dispersing half 7633 Mcrometer motor wiring diagram 7 634 Spedrometer Assembly Car biring half 7635 Mer
4. ERNE 2 8 84 0210 NOME INCLUCCS OPERATIC SOFTWARE COMPUTER OFSPLAY PRINTER CABLES 2 DUNT ACCEPTANCE MANUAL ati SA C05 09 east et we wen 15 MCLUOED GETON A REFERENCE ONLY 5 PARI OF OPNO 14065 CISSONT LAMPS USES IRONS 10065 SPRES 1808 mnes ORDAT MM is Ae ALPS POWER SUPPLY BA C222 CASE Er z we Laue conis v fe 2 NEM 7 LIEN Tee io won se ENEI ILLI LAE NW CDD MI IFO TRANSIT paco CASE MLS HIT QUISDE OS Fs escas as ar ema s ADD 1208 VERSION OF 1005 GA C204 8 DOCUMENT RO 85 01000 5 1 SYSTEM COMPONENTS SPEOFIEO NOMODELY 81 THER NUMBERS SHOWN IN LOWER LH CORNER OF EACH BOX OPTION COMPONENTS BREWER SPECIROPHOLMITERS WUST ALSO HAM OPE RING VOLTAGE 13 Pen tal des And PLEO Qv 4 38 SHOWN BEL COMPUTER SYS 10 SPEOTED OF ORDER oe
5. E eri TRACKER ar MET pap MC 17 YD 609 55 10 X MOUNTS HALLS Bel VES no ewer ape ph SEE WEG NTE ist eee eee ee pate ee 5 PLS ee ae 3 k z 3 E Ke A Ln Eat some e CK yaki niv SECTION 2 ONL Cag oe SCE YEU TOS Eth aE T ORME PLATE E POSING 1505 eee ETL mecum necs SEC SUCTION 8 Tn Fon SOO MTR o Owe 6 5 S Y SENEE OTY ricas POTE TR e mal I H k Giai P PAER V3 To QUA dr quos He ENT PME AE ts Gees Woe alas ML terns uso bdo srs cer canis te ae oe eR Gee 5 OR 0025 tM enema aae t
6. Options 952 809 Other Options D Cold Temp Kit E Camputer F Manuals H Electrical Spares Kit J Externat Lamp Complete 51128 BAF IR Brewer Serial Configuration Control Diagram Brewer Spectrophotometer MKIII Customer Number Date Manutactured Revision Date Delivered __________________________ SCI TEC Instruments Inc Date Figure 7 1 1 1 19 BREWER MKIII Spectrophotometer Maintenance and Service Manual BREWER SYSTEM COMPONENTS STANDARD AVAILABLE OPTIONS SPECTROPHOTOMETER OPTION 8 TRACKER 209 ADD OPTION C we OPTION COLD TEMPERALR SENKE OPTION E COMPUTER SYSTEM OPTION F OPTION 6 BASS SPARES OPTION H GECTRONES SPORES KIT OPTION we UMP assy sPECAL TEMS Figure 7 1 2 1 ATM PTH TRACKER 91 5 we in 8084 COLO TEMPERATURE SERACE COUPER SYSTEM CustowZeD w OFERTAS AMD MANTENANCE MANUAL B 0 STAN SPARES BOA WB ISSY 84 6126 Lug REFERENCE ONLY OF WEATHER COMER fon CR uv 152 COD MAHER COMER COLD
7. A UE e EA eK NO LUBE 00 NO Me OFT 0 10 SEC e OCHRE DF MRR sen 4 DEDI CARE ACC Qt uxor 29 5 3 ns 54 im le can in rr pm x E M SPECTROMETER MECH AIAG A00 RAT OI 1 ASST DISPERSING BREWER FINS 41 SA IC THO TURNS wae Figure 7 6 3 3 12 SEHE MANE E anon ES TAL SPECTROMET ONL 4554 OISPCPSING HALF GREER Figure 7 6 3 4 70 BREWER MKIII Spectrophotometer Maintenance and Service Manual M 55 te rtt Sones ed eec va ES Sots SORE Yi 4 S1 Do wer gef X ent rot 6 26 10 CE OF A oeste sot oom wor AW SEOE 1 6 OCN SE Val CRON
8. 42 SI 4 ECAA ANO TEST ACCME FX ett ADS Dun LABEL IN MALI ADM OME SHOWN 16 OTHER Half ON THE DOE Sau PRIOR SHORING RA 16 04 100 OF CONTRO AMAL IOUR POSTON USAG 10 30 SPARES KT CTEM 0 ME PACKED BREWER PRO 10 SAPPIG AG NENS 21 23 24 30 I PAOX TO 7 ACE SECTION ort NOL SHON Figure 7 1 3 2 BREWER MKIII Spectrophotometer Maintenance and Service Manual BA C231 BREWER DBL SPECTR Item no Part No Description Qty 1 05 BREWER FINAL TEST MANUAL 1 00 2 112 8 STD SPARES KIT NEW ELCTR 1 00 3 BA C208 SHIPPING CRATE 1 00 4 BA C194 WEATHERPROOF COVER ASSY 1 00 5 BA C221 BASE ASSY NEW ELECT III 1 00 6 191 8 DBL ELEC OPTICAL ASY NEW 1 00 7 BA C84 UVB KIT 1 00 8 BA E116 BREWER OPERATING SAV 1 00 9 BA E124 ELEC PCB BRCKT ASSY BREW 1 00 10 BA E71 B MAIN POWER SUPPLY KIT 1 00 11 114 ZENITH DRIVE ASSY 1 00 12 BA W76 A CABLE ASY MAIN TO MTR 29 3 00 13 BA W76 B CABLE ASY MAIN TO MTR 27 4 00 14 BA W77 A CABLE ASY MAIN TO LMP 11 1 00 15 BA W77 B CABLE ASSY MAIN TO HV 16 1 00 16 BA W7
9. Figure 7 1 8 31 BREWER MKIII Spectrophotometer Maintenance and Service Manual BREWER REFERENCE DOCUMENTATION Section 72 Power Supply and Hamess Main Power Connect Cable Assembly 72 1 Main power Interconnect Assembly 72 2 Main Power Supply Assembly 72 21 Power Supply data sheet 72 22 BREWER Spectrophotometer Maintenance and Service Manual i nu zu Do eus 80 DOCUMENT NO SHEILD DRAIN WIRE ESSCHEC ut DENS Copied used lor INSTRUMENTS INC Sect eure NOTES pn R 1 STRIP CABEL JACKET 7 AND CUT BRAID AND DRAIN WIRE BACK MAIN POWER CONNECT 2 BAG AND LABEL WITH THE CURRENT DWG NO AND REVISION AS SHOWN ON THIS DOCUMENT CABLE ASSY COMPUTER GENERATED DRAWING FILENAME BA WBO DWG 0 2 INCHES TX SCRIPTO NOTES KEYING WASHER PART OF ITEM 5 PRIOR THREADING BOOT ITEM 9 ONTO SWITCH LABEL CONNECTORS P amp P4 ONLY AS SHOWN 5 as BARE TERMINALS WIH RTV TEM 32 omina m 4 BAG EM 12 ANO ATTACH TO FISHED ASSY 5 PLACE FINISHEO ASSY IM CLEAN PLASTIC 846 AND PRIMARY A C INTERCONMECT HARNESS LABEL WITH GWG amp REV naar sine sm Figure 7 2 2 33 BREWER MKIII Spectrophotometer Maintenance and Service Manual 0 Pe ma
10. BREWER MkIll Spectrophotometer Maintenance and Service Manual DOCUMENT ND 85 699 R201 47k 9215 214 426 NA 50 202 20 MOTOR WIRING TO P201 SCE Ba wig CONTROL CABLE 4201 25 320 DAP 15 10 P205 Stt 85 09 85855558888 828555858 P C B SCHEMATIC AZIMUTH TRACKER 4 2 neus Figure 7 7 1 3 4 A00 2 X 0 46 CLARK Y GOTIOM MEW OF BLOCK amp SIN STEPPER MOTOR 2 CE LENGTH 16 NOTES 1 LOCK ALL UNLOCKED SCREWS WITH 15 CU WHITE AND BLACK WIRES TO 6 SOLOER 4DOIDONAL WIRES AS SHOWN COVER SOLDER JOINT HEATSHRINK 20 a APPLY RIV WEM 16 TO BARE LEADS MAKING SURE 0065 Ir FTU PUE EE lt VATIC OVERLAP THE TOP OF IHE SENSOR je ten 221252 mc 4 TEST SENSORS USING BA W33 PAO1 BA W20 ADAPTER MOTOR WIRING AZIMUTH TRACKER DRAG 108 Figure 7 7 1 4 78 BREWER MKIII Spectrophotometer Maintenance and Service Manual ioe as THAT FEATURES 3 Wait Power Supply Single Guat and Triple Accor DOIDC Models dos Lew DU Peer Rate YPG Lind Protection Ut Recognize SPEGIFICATIQNS At Output Ioh TOR Mis
11. 44 10 0 Y CORE MM Om t ail ne os 1 IOS OL OF ge 6 08 OF A SRY mas vt ane COD Figure 7 6 4 2 72 BREWER MKIII Spectrophotometer Maintenance and Service Manual 1 PHOTOMULTIPLIER HOUSING ASSY Item No Part No Description Qty 1 2 Photomultiplier Tube Assy 2 46 Ultraviolet Filter 3 2 Photomultiplier Tube Assy 1 00 4 5 6 7 16 Lens Retainer amp Light Trac 1 00 8 BM P17 Filter Retainer 1 00 9 85 10 790 Sealant Contr Volatility 0 10 10 11 83 10 620 O ring 8020 7 8x1x1 16 12 83 10 628 O ring 028 1 38x1 1 2 1 16 N B R 2 00 13 85 41 115 Label Adhesive 3 8 x1 1 4 1 00 14 15 70 10 012 Dessicant 2164 Minipax T 1 56gm 900 gal 2 00 16 83 95 748 Washer 4 Split Lock SS Med Pat 316 3 00 17 83 87 161 Screw Mach 4 40x1 4 FH HX SC 82D SS 3 00 18 83 51 762 Screw 4 40x5 16 Button HD HX Soc SS 3 00 19 83 56 143 Screw Set 6 32x1 4 Cup SS HX Soc 1 00 20 10 10 020 Lens BYCX G1 FSD QTZ 38 1 mm D 38 1 mm FL 1 00 21 85 80 385 Adhes Transfer Tape 0 75 3 00 73 BREWER MKIII Spectrophotometer Maintenance and Service Manual nen e 8508 00 299
12. CA m fet DOCUMENT RO NOTES 1 ITEMS 2 6 9 AND 11 NOT INSTALLED IN 271 8 ASSEMBLY A LABEL CURRENT OWG MO ANO REMSICH AS THIS DOCUMENT 1 LOCATION SHOWN POWER SUPPLY ASSEMBLY jus T BA E103 B Power Supply Assembly Item No Part No Description Qty 1 102 Mounting Bracket Power Supply 1 00 2 3 89 90 220 Mounting Clip Axial Lead Resistor 4 87 50 098 Power Supply SOW O P Switch 15V 5 87 50 099 Power Supply 80W O P Switch 12V 1 00 6 83 51 752 Screw 82 56 x 1 4 Lg Hd Hex SS 7 83 79 068 Screw 16 32 3 8 Lg Skt Hd SS 4 00 8 83 85 724 Screw 6 32 x 5 8 Lg Fit Hd 100Deg SS 4 00 9 83 40 219 Nut 42 56 x 3 16 Hex SS 10 83 40 261 Nut 46 32 x 5 16 Hex SS 4 00 11 83 95 603 Washer 2 Intemal Tooth Lock SS 12 83 95 605 Washer 6 intemal Tooth Lock SS 8 00 13 83 09 210 Spacer Threaded 6 32 x 1 4 Lg Hex 4 00 BREWER MKIII Spectrophotometer Maintenance and Service Manual libre 138 pek st he SEA te opegde Pom are ine snitch or eating The REPOS Se Operating Temperature and COufput Power Range ee put Ihe soif exceed 18755 asd igi distet are to Hadr Be eres oe BV
13. gece p andae de Tae Tet MAS IE oe GLAS 81 Figure 7 7 2 1 BREWER MKIII Spectrophotometer Maintenance and Service Manual ur HEATER F AN MOUNTING KIT BREWER Spectrophotometer Maintenance and Service Manual Section 7 8 Main Giectronics Configuration Loading procedures This procedure is used to upload new firmware for the New Brewer Electronics or to update the configuration files stored in flash memory The only time this procedure is required is if the firmware has been corrupted due to electrical surges or the memory had been replaced or if the configuration has changed due to some physical changes to the sensor settings or position stops Restore Back to COSMAC Mode In certain circumstances where the signal line is placed in a permanent Break signal condition the Brewer will continually try to reset but eventually it has determined that there is a problem and it will halt trying to reset and go into Loacimode This fault can happen when the RS422 cable has been incorrectly wired or has shorted together to simulate a break condition To confirm that the processor is actually in loadmode remove the weather proof cover of the Brewer and look down into the Main electronics board between the cover plate and the microprocessor board You should see a flashing LED light and if it is in loadmode it w
14. OF RE 1 ELE 35 B eqs Serta ex UN em PORE atu 3 0 epe Pulido CREAR OF use wr Bx wos wn EID sommes 2 gS Rt A QU OKT WOES LUBA 100 OFT RLS TG FUL cor OF Heron n SUR 0 COME ORES DAE LE SCHTEC EE DT SARI KC LOR 27 LEO SPECTROMETER NECH ASSY QV ASS 2 4 AFTER LH 39 HALF BREWER beu rm to mrt T SPECTROULTER MECH 557 RE COMBINING HALF BROWER 3 Figure 76 36 71 BREWER Spectrophotometer Maintenance and Service Manual IT EMEN CT 4 SED IUC 780 a9 POS NOTE E77 17 an 222272 TS ATTACH LABEL WITH PMT SERIAL NUMBER NOLES 1 ON COMPLETION OF ASSY STORE IN CLEAN PLAGIIC BAG SEAL AND LABEL
15. Screw 6 32 x 3 8 Lg Skt Hd Cap SS Screw 6 32 110 Skt Hd SS Screw 6 32 x 3 4 Lg Skt Hd Cap SS Screw 8 32 x 3 8 Lg Skt Hd Cap SS Screw 10 32 x 1 2 Lg Skt Hd SS Screw 6 32 x 1 1 4 Lg Skt Hd Cap SS Screw 10 32 x 5 8 Lg Skt Hd Cap SS Screw 8 32x1 2 Lg Flt Hd 55 Screw 4 40 x 1 2 Lg Fit Hd Hex SS Screw 6 32 x 5 8 Lg Fit Hd Hex SS Screw 6 32 x 3 4 Lg Fit Hd Hex SS Screw 10 32 1 2 Lg Fit Hd Hex SS Screw 10 32 x 5 8 Lg Hd Hex SS Screw 10 32 x 11 0 Fit Hd Hex SS Screw 1 4 28 x 5 8 Lg Fit Hd Hex SS Nut 6 32 x 5 16 Hex Steel Plated Nut 1 4 28 x 7 16 Hex Steel Plated Nut 8 32 x 1 4 x 3 32 Thk Hex SS Nut 6 32 Self Locking Hex SS Nut 8 32 Std Hex Pattem SS Jamb Nut Altered 3 8 24 Hex Washer 8 Intemal Tooth Lock SS Washer 4 Extemal Tooth Lock SS Washer 84 Intemal Tooth Lock 55 Washer 46 Intemal Tooth Lock SS Washer 1 4 Extemal Tooth Lock Washer 6 Split Lock SS Washer 10 Split Lock SS Washer 88 Split Lock SS Washer 86 Flat SS Washer 8 Flat SS Washer 1 4 Flat SS Terminal Female Disc Red Filter Interference Power Line EMI Ferrite Split EMI Suppression Label CE Approval EMC Directives Azimuth Tracker Paint Masking Procedure Azimuth Tracker Ass y Adjustment and Test Procedure 120V Qty 230 Qty 1 00 1 00 5 00 18 00 1 00 3 40 2 00 2 25 2 00 4 00 2 00 1 00 1 00 5 00 5
16. and has a more stable current in the range of 10 to 30 degrees 45 Description of Standard Lamp Failure The standard lamp is the lamp most used in all of the tests called up by Software Without it it is impossible to ensure calibration and proper operation of the Brewer Ozone Spectrophotometer Therefore an extemal UVB lamp can be very useful in two areas 1 Asareference to monitor any changes in the standard lamp itself 2 In the event that the intemal standard lamp stops operating the extemal standard lamp can be used as the reference The software for the standard has been designed to give an error message in the event of a failure The message is Lamp not on test terminated This may nct necessarily be the case There are other factors which can cause a standard lamp failure even though the lamp remains on These areas include performance filterwheel position Zenith prism position and photon counting electronics as well as electronics used to tum the lamp on and off BREWER MKIII Spectrophotometer Maintenance and Service Manual 46 Trouble shooting Procedures for Standard Lamp Test Failure a Error message Lamp not on test terminated b Retry the test andif the light is on it should be seen through the viewing ports to ensure zenith prism is in the proper position Perform an AP A D voltages printout test and compare results with previous tests paying particular attention to standard lamp cur
17. baud on port 1 tracing is off Go into by typing ogmoda 9600 Trying Operating mode at 9600 baud is displayed until the display will display using operating mode at 9600 baud on port 1 tracing is off Send the configuration file to the microprocessor by typing putcfg Lbrewnnn cfg nnn is the instrument number Wait approximately one minute to transfer Type readLog i to clear the log buffer Type useconfig motors should now reset When complete zeadlog to see if errors were encountered Contact SCI TEC if the log displays a problem BREWER MKIII Spectrophotometer Maintenance and Service Manual Type save i number should appear This tell you how many configuration writes you have left If the number is 1 then the next time a configuration is sent the top firmware must be written to Flash memory the configuration area is Cleared to allow another 4 blocks of configuration files Go to Load mode by typing Loadmode i Waiting for mode change to complete and Trying load mode at 9600 baudis displayed until the display will display using load mode at 9600 baud on port 1 tracing is off Go into Cosmacrmode by typing cosmacmode 278 Reading Cosmac mode reset message Waiting for mode change to camplete Trying Cosmac mode at 1200 baud Motors Initializing These are some of the messages seen while going into the Cosmac mode Motors should reset and it is ready to run the brewer oper
18. 3 SPECIAL NELS 10 BE ORDERED SEPARATELY 4 SEE SHI 2 FOR CENERAL ARRANGE MENA QIUENSIONS OF WAN COMPONENTS 5 1005 COMES SUNDARO WIH we ASSY 64 55 LEKCIHS OVER SMU SPONSELTY OF THE CUSTOMER CP SPECIAL ORDER ANG NOTED s E ON THE INSOLE SALES ORDER COMPLETE BREWER SYSTEM DESCRIPTION EXAMPLE esa 220 WOOEL OF SELECT ADOITIONAL p gts M ORDER 852 BARK E 05 503 85 OK SALCIA BA WARK N 0 50 0 SELECT REO OPERATING VOLTAGE 110 prn PART HE SCITEC ET DIS INSTRUMENTS INC Sixt DERE RON BREWER Spectrophotometer Maintenance and Service Manual 27 257 0 69 18 257 0 46m vn 10 NOT WSIALLCO SEE B punt pon PANT CK 13 5 34 3cm 1 BROWER SPEC MKIL MKIV AT 119m ATMAN DAME CABLE ACCESSORY FONTA wm Fon TESTING 52 Qum AC POWER CABLE 1 52 POWER CABLE DAN CABLE HOES 16 ST 1 508 COUPCARMT OPTIONS CHART METHOD OF SYSTEM SPECEKATIQN t DENDO HOM FOR REFERENCE PURPOSES ONLY OPTIONS D 1 NOt PEFEA TO DAG 0 SHOWN AT
19. C ur 5 824 Chie sty Cri BREWER Specirophotometer Maintenance and Service Manual 2 20 31116 1 7817 4818 Lathan Jus tty 45 BREWER Spectrophotometer Maintenance and Service Manual 1 P 1 J1 0 BREWER MKIII Spectrophotometer Maintenance and Service Manual 2145 TEED G 182 GD IGION 4207560 C Sx 939 47 BREWER MKIII Spectrophotometer Maintenance and Service Manual PONO 6000 2239 0292 AINI IMI 1182 CJ zn zb LISEZ Gene D Ne ET BREWER Spectrophotometer Maintenance and Service Manual R31 C332 E 5 22 741 t a gi sano Tux CR2E CH27 CH28 m o a D 5 E 5 4 L3 z c 3 E 3 0 00 gt 0 1 8 8 2 5 3 49 BREWER MKIII Spectrophotometer Maintenance and Service Manual 0932 EHO 8580 THD 9883 SENS PENO
20. EACH FOR FURTHER IMF ORUATION ALL NECESSARY D CUMEIAXTION SOFTWARE AND MANUALS HCLUOCO QOTON BAPER SPECTROPHOTOUEICA COMPUTER FRLCHANC BSC 208080 Figure 7 1 2 2 M 21 nt uer 530 SPARES OF OFTON 100 Tw OPTION Cast MANUALS ONSOC 30 sarong 2209 versen OF 1005 204 8 MKI MKIV 8 5 21 5cm CHC QPTOM B B C85 84 03 CMG OPTION M STANDARD IT MAKE PARI OF 400 005 1 161 6254 3203 12 rv azonos n es 2 2 scio j m bae oe es E os 1 2 BREWER SPECTROPHOTOMETER OPTION 4 AZIMUTH TRACKER OPTION B REFER DWC 0113 FOR INSTALLATION INSTRUCTIONS 5m TNT OREN BS C 1000 BREWER MkIll Spectrophotometer Maintenance and Service Manual mes 160 10 Ow 84 171 8 FOR CES OF DORER SLORY 15 10 OME GA F114 FOR ASSEMBLY PURS OF TENTH a45 Cu 19 2 CABLES MEN 19 14 18 17 amp 20 NO SHON TOR CLARET Nest no ag water DuC etti as cast iss AS PER
21. MARKER BAG AND LABEL WITH THE CURRENT OWG NO AND REVISION AS SHOWN ON THIS DOCUMENT USE THE 3M SCOTCH FLEX NOTCHER SCRIBE TO REMOVE COMPUTER GENERATED DRAWING FILENAME BA WB4 OWC pis J115 0 P215 SEE 83 01 YEL 22 87 AZ MOTOR 2116 1715 00 2215 SEE BA w19 NOTES AN 6 OVER CABLE ASSEMBLY FOLLOWING COMPLETION OF CABLE 2 GAG AND LABEL CURRENT ORAWING NUMBER AND REV AS PER THIS DOCUMLMI Figure 7 3 2 50 mm meer mwee fee DOCUMENT NO 84 BLACK STRIPE LOOP CABLE THRU STRAIN RELIEF AS SHOWN 221 jose PSSCLTE 1995 The document i1 m te DIMENSIONS IN QUAL DIMS mm inches INSTRUMENTS INC SONE mermere COMPU COMMUNICATION CABLE ASSY DESCRIP MH BSE 200 7 OG 0085 19 21 ER WEE OUT 220 FERRE CORE 10 5550 SENI EM RE el hn e 12451 E DUAL Dem cem Crete HASTEUMENIS INC 80825225 577 INTERNAL AZIMUTH ORIVE DATA CABLE es 81 41 pee M BREWER MKIII Spectrophotometer Maintenance and Service Manual POWER UPOLA qtu NDIES USE TIE W
22. Types firm S orent VARS ingest BETAN pipi ee Bex qe Rap Fade 100 at plea or BE 557 sermon Sor BOSE to SOUL SUD 3098 ei venio mue m Lond change Aly pending tres 3o cde 8080 Bare Pinte Futl Logd 90000 E Pee Ag Fut Load erate O 0 0 lemperstuee toatficiont GSC Sinne Teuue T E C H N 0 L 0 UY VT 50 5 Sci TEc 87 50 088 VTGO HH Ry x Ehock d Resigned commercii ad ARRET REESE bed fae HBO 195 Bi e pots how RON Figure 7 7 1 5 BREWER Spectrophotometer Maintenance and Service Manual VT 50 VX 50 TERMINATION OPTIONS 8150 088 V So 41 09 fora core page udine for 22 BREWER MKIII Spectrophotometer Maintenance and Service Manual Cr exi WN IDET S 7 25 E FORE ROP aor Arai 48 CX HENNE wie den wur
23. WITH DWG NO amp ISSUE 2 FOR ASSEMBLY PROCEDURES SEE APOT BA PO 3 COAT THREADS GF PMT COVER 4 WITH TEFLON SPRAY TYGADURE SPRAY mu DESCR PUN RIV 22 ARCUNO THE 9 PIN CONNECTOR FLANGE TO PROVIDE SEAL EL 5 me jw INSTRUMENTS me HEY PHOTOMULTIPLIER HOUSING ASSY COMPYITR CENERATED 202118 POI DUC 4 Figure 7 6 4 1 ma cns TC MOX SY PAR 10016 2 4 oan 1 BC 0 HI ls 00 OQ NL oF RK tat 804 War 30 13 00 we CO E TI fh OF vae APS Ta SALIB samc KT 70 CHORE 6 SOCII BOLE Dam 30 DE N 4 4 20 944 Eso AO enge Sees Wt T V3 Ta SNL COE SOLCON 10 SIN 10 VITE SER i WAGE VA me 3606 Ur pa wnn yg rea ai Une MC PEIS
24. after ensuring all connections have been made and Brewer power is on f3 If there is still no operation there may be a firmware problem where an error has caused the microprocessor board to go into a different operating state The next section will go into the troubleshooting of the Electronics board 9 If there was no reset of the motors there is an indication that a failure has occurred within the Brewer itself now the functionality of the Main Electronics board can be tested BREWER Spectrophotometer Maintenance and Service Manual h Look at the LED light located near the bottom left hand side of the board it shouid be flashing slowly in Cosmacmode Refer to the following table for the different modes of operation LED Mode indication 22 bse ee Cosmacmode with configuration missing Loadrmode waiting for code to be downloaded nee with bad flash with configuration off present i If the motors are observed not to reset and the Brewer message has not been received then the correct voltages should be confirmed for the power supply on the Main Blectronics board i1 If no flashing fed is displayed and the motors did not reset confirm the power supply values on J23 with the following chart e e SE i2 If the voltages are similar to the above values or the values in the final test record then continue to determine the mode of operation and to change bac
25. eventually display using load mode at 9600 baud on port 1 tracing is off 1 Go into Casmacmode by typing cosmacmode A number of messages will appear and eventually the motors should initialize and it is ready to nun the brewer operating program and display using cosmac mode 1200 baud port 1 tracing is off 1 type quit to get out of Brewornd To run the Brewer operating program type BREWER 87
26. have retumed to the dos prompt Run the Brewer operating program and then ensure the time and date is correct New Configuration Upload If hardware changes have been made such as removing the zenith drive gear or adjusting the micrometer drive sensor mask then correct values for zero offset and other parameters must be uploaded to the instrument for it to operate correctly The procedure to upload the new configuration file is listed below The configuration file that describes the characteristics of the instrument is named BREWhinn cig The nnn will be the instrument number This file is an ASCII text file that describes all the technical parameters of this particular instrument This very same file should be uploaded to any replacement Brewer Main Electronics board following the physical installation of the board A spare Brewer Main Electronics board will normally be sent with the latest configuration file stored at SCI TEC If the custamer has changed any parameters in the field it will not be configured into that board and the customer will have to upload the latest file as described below Change to the directory cAbdatannn by typing the command cd WodataWnn vsj Brewom exe by typing remem using cosmacmode at 1200 baud on port 1 tracing is off shouldbe displayed Type Loadmode to change modes Waiting for the mode change to camplete and when compete the display will display using load mode at 1200
27. in the Brewer Main Electronics Board Reconnect the cabling to the instrument and continue to the next test An alternative test is that each line can then be measured paint to point with a ohmmoeter It should then be repaired or replaced if there is a problem The resistance through the surge arrestor is 10 ohms so that a typical resistance could be 12 ohms from the RS422 adapter to the IDC connector at the Brewer Main Electronics board f Does the Brewer reset f1 If the reset of the motors is heard and seen but there is no message sent to the PC then there is a possibility that even though the cables between the PC and the Brewer are connected there may be problem with the line driver chip on the Main Electronics board Ensure the power is tumed off and remove the Main Electronics cover plate and replace the IC U11 which is on a socket to allow replacement Make sure you ground yourself to one of the metal brackets on the instrument before touching the electronics board Leave the cover plate off and tum on the instrument The motors should be observed to reset and if your computer was left in the serial communications program you should see the Brewer reset message displayed on the screen of the serial communications program The problem is now solved and you can exit the communications program and run the Brewer operating program Check for correct operation using the normal commands 12 A software reset should be attempted
28. installed NOTE 1 SOFTWARE RESET is used to indicate that the reset instruction RE should be issued to the Brewer microprocessor from the control computer This instruction causes a hardware reset to be generated a very long break on the line NOTE 2 The Brewer PC RS422 Communication is set to 1200 Baud soon after the program 15 run BREWER MKIII Spectrophotometer Maintenance and Service Manual a It has been established at this point that there is absolutely no communication between the PC and the Brewer b A software reset should be attempted after the message Brewer Failed to Respond appears on the PC monitor This is done by pressing RETURN key on the PC If this fails to establish communications the PC should be re booted by tuming the power off and on C If there is still no response the cables should be inspected to ensure that a connector has not been inadvertently removed or accidently pulled out of place The Data cable to the Brewer from the PC as well as the power cable to the Brewer should be checked cables involving the linking of peripherals should be checked to ensure they are plugged in as well After this has been done another software reset can be done as indicated on the PC d You can check to ensure that the computer serial port is operating correctly by running a serial communications program such as Telix or Procomm Remove the RS422 adapter from the back of the computer and connect pins 2
29. lamp test is not operational then it can be assumed that either there is an optical failure or a PMT failure If the mercury lamp test is normal while the standard lamp has failed this usually indicates a problem with the lamp and the circuitry that controls the lamp 9 The high voltage should be measured using a voltmeter and looking at test point E16 on the Main Electronics board There should be a voltage between 2 5 volts and 5 volts which has been factory set see final test record for the setting and should not be adjusted This voltage is equal to the actual high voltage divided by 409 There may be a variation of a volt or two of the high voltage but the voltage at testpoint should be identical to the final test record value If they are significantly different or rrissing altogether the high voltage circuit may have failed This will require a skilled technician for repair or SCI TEC should be contacted h If the high voltage appears to be present from the monitor testpoints described in item g there is a possibility that something has failed in the Light Detection System reference Section 4 7 44 Description of Standard Larrp Circuit The standard larrp current regulator is the same as the Mercury lamp circuit except the resistance wire is chosen to regulate the supply current with less variation than the mercury lamp The circuit keeps the operating current within milliamps over a range of 20 to 40 degrees Celsius
30. power supply provides stepped voltages to the photomultiplier through a resistor divider circuit at the base of the tube Because differential thermal expansion between the photomultiplier glass and the Teflon base may cause tube breakage under extreme temperature conditions it is recommended that the photomultiplier housing never be subjected to temperatures of less than 50C or greater than 60 The pulse board is located directly behind the base of the photomultiplier tube This circuitry accepts the photon pulse signal from the photomultiplier amplifies the signal discriminates the signal level from current leakage divides the amplified photon pulses by four and finally outputs the signal on a line driver because the circuitry is extremely sensitive to feedback and HE noise it is located in dose proximity to the photomultiplier 412 Description of Rabemeter Temperature monitor amp High voltage Circuits a See section 4 2 for description of Mercury lamp circuit b See section 4 5 for description of Standard lamp circuit High voltage dircuity The high voltage 1000 2000 volts for the photomultiplier PMT is provided by a DC DC converter high voltage control circuit board d Ratemeter The ratemeter circuit provides a voltage output of the photon count rate It consists of two parts the transistor charge on the high speed amp board and the integrator ampiifier on the Main Electronics b
31. then you can test the cabling up to the Main Electronics board Reconnect the cable to the 85422 adapter and connect it back to the computer Ai the communications cable connecting to the surge arrestor box mounted below the Tracker remove the connection and connect a wire jumper from C to B Test it sirrilar to and then move the to to J and test it again If this section passes the test reconnect the cable and disconnect the communications cable at the Brewer Again using wire jumpers connect pins C to and later Switching to to J using the procedure in If the test passes reconnect the cable to the Brewer and open the cover of the Brewer Tum the power off at this time and disconnect the IDC connector J7 and again use smali wire jumper to connect pins 2 to 8 and later connect pins 4 to 6 The pins begin from 1 at the triangle stamped on the side of the connector and increment in odd numbers on the same row 1 3 5 7 9 on the first row and 2 4 6 8 10 on the nex row in the same direction BREWER Spectrophotometer Maintenance and Service Manual Confirm correct operation with the serial communications program similar to d If the test failed at any point of this cable test procedure the faulty connection should be repaired before proceding to the next test Isolate the location of the break or incorrect wiring using an ohmeter If all of these procedures have been tested positive then the problem lies
32. 0 Option fg 28 SCHEMATIC DIAGRAM SCHEMATIC DIAGRAM GESOLET 130 BA w12 2209 REFERENCE ONLY EX NOTES 1 REMOVE THE RUBBER INSULATOR FROM THE INSIDE CF TEM 6 DISCARO AFTER THE WIRES ARE SOLDEREO TO THE CONNECTOR USE 15 ANO SEAL AROUND ALL THE SOLDER CUPS THEN INSTALL THE PLASTIC SHELL OVER MARK CABLE WITH PART WHERE SHOWN eC 50504 Tt POWER CABLE ASSY BREWER COMPUTER CIMRTEO a w1 CCN MEKE Lw ap EIT t CHE LOS MAS FOP NIM SET 55 nay BA W68 ey Sen 27 25 amp TN IDENTIFY EACH LEAD WITH PROPER DESIGHATION AS PER SCHEMATIC NOTES 1 ASSEMBLE CONNECTOR 1 TO CABLE ITEM 5 AS FOLLOWS SUP GACKSHELL CLAMP ONTO CABLE THEN NYLON SHELL amp RUBBER TELESCOPING BUSHINGS ITEMS 3 4 AND STRIP WIRES OELETE THE RUBBER GLAND AND SOLOTR TO PINS NOTE TWIST SHIELD amp DRAIN WIRE TOGETHER ANO SOLOER TO A 1 PIECE WIRE ITEM 7 AND SOLOER PN BEFORE OFFERING UP CABLE CLAMP HANG CABLE WITH CONNECTOR DOWNWARD AROUND WEES RIV 3145 70 PREVENT MOISTURE FROM GETING INTO CONNECTOR WHEN RIY HAS SKBIHED OVER OFFER UP
33. 0 8A C230 0 84 C231 BA W77 8 167 BA C230 BA C230 8 8A C231 BREWER MKIII Spectrophotometer Maintenance and Service Manual e EB INITIAL RELEASE DOCUMENT NO PAN BLACK STRIPE NOTES 1 LABEL PART NUMBER ON GROUND SIDE CABLE WITH PERMANENT BAG AND LABEL WITH THE CURRENT DWG NO AND REVISION AS SHOWN ON THIS DOCUMENT DURING INSPECTION USE CABLE TESTER AND TEST 100 OF CABLES COMPUTER GENERATEO ORAMNG PLENAME GA 927 06 LOOP CABLE THRU STRAIN RELIEF AS SHOWN Fin crat DESCRIPTION SCALE EE eus 61995 Shane n Piena mens lief EE QUAL DIMS mm inches INSTRUMENTS INC S E ceo TME perm MAIN TO LAMP amp HV dam CABLE ASSEMBLIES FRACTIONS 1 32 2 INCHES INITIAL RELEASE BLACK STRIPE LOOP CABLE THRU STRAIN RELIEF AS SHOWN NOTES 1 ON OECONNECTOR END GROUND WIRE AND USE PINS 2 TO 9 LABEL PART NUMBER ON GROUND SIDE OF CABLE WITH PERMANENT MARKER BAG AND LABEL WITH THE CURRENT DWG AND REVISION AS SHOWN ON THIS DOCUMENT DURING INSPECTION USE CABLE TESTER AND TEST 100 OF CABLES COMPUTER GENERATED DRAWING FILENAME BA W78 0WG LOOP CABLE THRU STRAIN RELIEF AS SHOWN IDC WREMCUNT SOCKET 9 PIN OECONHECTOR 99 12 050 RIGBON CABLE aes ee
34. 00 1 00 2 00 3 00 12 00 4 00 7 00 2 00 2 00 FIRST ISSUE BREWER MKII Spectrophotometer Maintenance and Service Manual ZPCCYPGPHROTQUETER OA BeOS 3 REFER 10 PARTS 160 GA C13 TOR MEUS USTED ABONE OR ei WES NOTES TEMS 10 BL ABE FOR RIMERENCL PLEASES ONLY AND PART OF B BAC 2 REFER 10 AQCEPTANCE MANUAL 05 POR TO Y BOSTON SPECTRGPHOTOMETER TO TRACKER AS SHOWN SECURE UING SCREWS THAT DE SPECIPOPHOTORDLR 15 POSTIOKQ SUCH DAT DM SIE HPs INE QUAM WOO COLS TO THE SIX Or ME AZRA TH TRACKER ONLY ONE 2 67 24819 4 CONNECT ALL CABLES TRACKER AND SPECTROPHOTOMETER AS SHOWN Figure 7 1 4 3 4 40 SCREWS 6 PL PART OF COVER ASSY SECTION FIGURE 1 UNO DOME INSTALLATION SCAL 1 1 NOTES NEUS SOWN FOR ACTEM PURROSES CALY AMD ARE PANT OF WG NO Ba 2 1 mifi 6091 DOwt t3 ic n 504386 Gt CIE AWE OMG P N 10 38 Geo RA OF 1 3 207 HALS Jiu se SPOT CSTE ILAT b 06 49 es REFERED 10 25 SCREWS SANIEN NY ETUS USED COEP I5 OF UNT HOWTO TOP A
35. 2 Dessicant Cartridge 1 00 2 70 10 013 Dessicant Humidity Indica 2 00 3 70 10 015 Dessicant 4 Unit Bag 3 00 4 93 70 401 Lamp Tungsten Halogen 20W 2 00 5 93 70 406 Lamp HG Germicidal GTL3 2 00 6 83 79 116 Scrw 10 32 X 5 8 HSC SS 4 00 7 91 15 217 Fuse 5A 250V FB FAST BLOW 2 00 8 91 15 220 Fuse 1A 250V FB 5X20MM 2 00 9 91 15 280 Fuse 4A 125V SB 5X20MM 2 00 10 92 22 050 Tool Ins Extr D Con Pin 1 00 11 92 90 002 Tool Hex Key 0 035 1 00 12 92 90 020 Tool Hex Key Kit Ball Pt 1 00 BREWER Spectrophotometer Maintenance and Service Manual TIE DOWN PLATE REMOVE amp REPLACE WASHER WITH TIE DOWN PLATE UE HOOK DO rms m 5 IN WALL OF STANO BASE AN 4 6 75 HOOK CUSTOMER SUPPLIED EYEGOLT OR CUSTOMER SUPPLIED OR RECOMMENDED MOUNTING SURFACE EQUIVALENT EMBEOUED IN CONCRETE 2 78 150 MIN e 100 47 THK CONCRETE PAD EQUIVALENT EMBEDDED IN CONCRETE RECOMMENDED MOUNTING SURFACE 7 7 50 MIN v 100 47 THK CONCRETE PAD STANDARD CONFIGURATION ALTERNATE CONFIGURATION T NOTE oat screens awe rv f Dua mm eee INSTALLATION DRAWING TRACKER TIE DOWN KIT 1 ALL EMS LISTED ABOVE ARE SHOWN FOR INSTALLATION PURPOSES ONLY AND ARE PART KIT 2 1030 135 COMPUTER CLACPAIED E
36. 3 B v lt apa BREWER MKIII Spectrophotometer Maintenance and Service Manual 11111 1111111 A act owe ave kk c BREWER Spectrophotometer Maintenance and Service Manual te 5 vum C mech 3 EDS ESUN ons C sa Figure 7 4 2 BREWER MKIII Spectrophotometer Maintenance and Service Manual LLLLELLTIATITITITT 4 HIGH TAGS FILANE 7 207 5 57 BREWER Mkill Spectrophotometer Maintenance and Service Manual BES VOLTAGE TOWER SUPPLY ACCESSORY 2 Ripe C E 2 BAI ARA BALE BALA 7 53 gie SEV Ae gk ander This tast poit has wn a gn Sees Higi Fawet Buggie dia to see REE SERGE output SHATT SHATT lt BNO RATE SOWATT Thesen pins can ine OBrien tor usa input Sates Oval 5 d Xemperstons of Far Bp ADRs a factor gunk 3 BAD
37. 8 CABLE ASSY HV BRD TO PMT 4 00 17 BA W79 THERMISTOR TEMP PROBE ASY 1 00 18 BA W82 DC MAIN LMP INTRCNCT HARN 1 00 19 BA W83 LAMP WIRING HARNESS ASSY 1 00 20 BM C105 NAMEPLATE ALTERED 1 00 21 BM C202 SHIPPING FOAM CNTRL PANEL 1 00 22 212 LABEL CE APPROVAL EMC DIR 1 00 23 BM C218 MODFD SCREW EXT TMP SNSR 1 00 24 BM C82 CONTROL PANEL MACH 1 00 25 BREWERQC QUALITY CHECK LIST 1 00 26 IT BA C231 NEW BREW MKIII INITL TEST 1 00 27 12103081 DECAL SCI TEC LOGO 1 00 28 12501365 2 DESICANT HLDR CARTRDG ASY 1 00 29 85 80 440 CABLE TIE MOUNT 3 4 SQ 3 00 30 83 30 450 BUMPER RUBBR 1 8 HOLE 3 4 00 31 83 40 485 NUT 4 40 SL RG HX THIN 55 2 00 32 83 51 752 SCRW 2 56 X 1 4 BUTTON HD 2 00 33 83 51 762 SCRW 4 40 X 5 16 BUTTON H 2 00 34 83 51 804 SCREW 8 3X2 X 12 BUTTON 3 00 35 83 56 143 SCREW SET 6 32 X 1 4 CUP 3 00 36 83 79 049 SCRW 4 40 X 348 HSC SS 3 00 37 83 79 152 SCRW 1 4 28 X 1 2 HSC SS 3 00 38 83 95 008 WASHER 4 FLAT NYLON 1 00 39 83 95 609 WASHER 1 4 LOCK INT TH 5 3 00 40 83 95 786 WASHER 88 SCREW 3 8 OD X 3 00 41 83 95 604 WASHER 4 LOCK INT SS 2 00 42 85 10 145 ADHESIVE SEALANT LOCTITE 0 50 43 85 10 150 ADHESIVE SEALANT RTV 0 50 23 f BREWER MKIII Spectrophotometer Maintenance and Service Manual Eel nim ne
38. BREWER MKIII Spectrophotometer Maintenance and Service Manual BREWER MKill SPECTROPHOTOMETER DOUBLE SPECTROMETER MAINTENANCE AND SERVICE MANUAL 8 0231 REV A Oct 30 1998 SCI TEC Instruments Inc 1503 Fletcher Road Saskatoon Sask Canada 57 555 Phone 306 934 0101 Fax 306 978 2339 Email info sci tec com BREWER MKIII Spectrophotometer Maintenance and Service Manual a Vue ee Dem c BREWER Spectrophotometer Maintenance and Service Manual TABLE OF CONTENTS PREFACE 1 0 PURPOSE AND APPLICATION 20 ECUIPIVENT REQUIRED FAILURES 31 No Cheration Condition No Power Indication 32 Troudie Shading Sequence for No Gperatian Condition 40 OPERATING TEST FAILURES 4 1 Prdimirary Irforretion 4 2 Description df Mercury Lamp 4 3 Trouble shooting Procedures for Meroury Larp 4 3 1 Mercury Lanp Redlacement 4 4 Description of Standard Lamp 4 5 Description of Standerd Larrp Failure 4 6 Trouple shocting Procedures for Standard Lanp Test Failure 4 6 1 Standard 47 Description df Lignt Detection System Rate Failure 4 8 Procedures of Light Detedian System 4 9 Description of Sitvesk Stepping Mhor 4 10 Desaripion of Photon Counter 4 11 Description of High Speed Board 4 12 Description of Faterreter Terrperature Monitor amp High Voltage Circuits 4 13 Description of Real Tim
39. DS TOP OF FRANT USING CUT PECES 3 LOCATED 45 SHOWN ns FFT wage 19 51 THEN MOM WES NIN Mo LENS 580040 PE THE 06 MINI 06 CONCAVE 4 AA AUCH COTS 45 Re Bio AIDAN PROCEDURES 5 PEGON METHAI TEST PPOCUDUECS PER 1 83 3120 LOCE PITANCE TES recor 10 WARS ABT LOOK AAN a sme OF X 10 COS OF 30 Cura 105 104 501 NO DSU DA STR DOES NOT DE SEC DA 2 TEM ta 10 MOUNTING BOCK USNE ADES TEN 36 b 4 TET DE em Lud FRONT VEW OF DISPERSING wan wae SRL I aem APA Lue Cert 70 ROA 10 SURE Eel e Fea umm zT I Ems BS turc aon 312078 OY col ASSY BREWER 2 Figure 7 6 3 2 68 5 Qo wh 5120 8 5110 5112 BASTIS A BA STISB BM S42 BM S47 BM
40. ECHO 19259211 3 S4 47 fsa C BREWER Spectrophotometer Maintenance and Service Manual TATE I TTITTTWTTTITITT C Sio 25844 C an so 02 16 vag Sex 2534 51 BREWER MKIII Spectrophotometer Maintenance and Service Manual 50059 Sore ere eer 3 M N C 420 9755 C 00 117285 vas aro TE 203 CC 2 9 27174 gt eno 9 38 yeu BREWER MKIII Spectrophotometer Maintenance and Service Manual AN Dive span A C pr A MV E 5514 D gt gt TUR A Oras evra C omn me me aux ANT Sei gt AAA AUS ue ana o 5 gt 1 E3 A 5 i ANT ERT CS 2 6 3 5 s s ax e xa 4S4 420 2 m a A Tel BREWER MKIII Spectrophotometer Maintenance and Service Manual dass DuC C oct sn C 43879 Sne gna ae d Ree e m En 19 2
41. LEADS TO KEEP THEM FROM SHORTING SIDE VIEW ES NOT SHDWN 5 INSTALL CAPACITORS CI TO C4 INSTALL THE SIGNAL CABLE 30 ENSURE THAT THE CABLE IS PROPERLY GROUNOED AND WILL NOT SHORT 7 INSTALL THE HIGH VGLTAGE CABLE 29 ENSURE THAT THE CABLE 15 PROPERLY GROUNDEO AND WILL NOT SHORT B CARRY QUT A VISUAL INSPECTION OF THE ASSEMBLY TO CHECK ALL THE SOLOER JOINTS AND COMPONENT LEADS 9 INSPECT THE SOCKET CONNECTIONS FOR CORROSION AND SQUEEZE EACH ONE SLIGHTLY TO PROVIDE BETTER CONNECTION FOR THE PHOTOMULTIPLIER TUBE 5 PART NO CESCRIPTION REMARKS ea BSCHEC E pana INSTRUMENTS INC irons pr EI INCHES JF DUAL MUS mm finches pe cw GG eene menn WILE nor ag OMENSONS BCS mm cnn HOUSING ASSY Basa 1 SOURED Taft 040 BREWER MKIII Spectrophotometer Maintenance and Service Manual BREWER REFERENCE DOCUMENTATION Section 7 7 Brewer Options 7 71 Option B Azimuth Pointing System Azimuth Tracker and Stand 774 Azimuth Tracker Unit Schematic 7 71 2 Azimuth Tracker Board Schematic 7713 Azimuth Motor Wiring W20 7714 Amh Power Supply Specifications 7743 5 Reference Acceptance Manal Sec 21 thru 25 for setup and maintenance irf 772 Option C UVB 77 21 Reference Fig 7 1 5 of this manual fo
42. LED lights Refer to section 7 8 for a more detailed procedure If the mode is cosmacmode type 1oadimode e the display should retum indicating it is in loadmode Now type opmode and within few seconds it will be in opmode Now that it is in opmode we have some tools to determine if there are any faults leading up to the problem readlog to display past error history each line displayed will be a possible clue to the problem that caused the failure 1 motor failures have occurred the status will tell you which motor and what the failure is Usually it is a sensor problem or a wiring problem that prevents the motor from resetting If no problems are displayed then the system can be placed back into cosmacmode for further testing In order to retum to cosmacmade the system must be placed in loadmode by typing loadmode ve following the status prompt that it is in loadmode type cosmacmode er The motors will reset and within a minute the system wil display the status that it is in cosmacrmode Quit the Brewomd program by typing quit I Fun the Brewer operating program by typing to check the correct operation of the instrument m Select certain routines that you are farriliar with and ensure that all functions and data appear normal n If no communications retum when running then there is fault that cannot be repaired by the Brewer operator Replace the Main Electronics board wi
43. M NEW ASSY 1 00 12 81 90 620 LOCK CONN SLIDE LOCK POS 300 13 83 9072 SCREW 6 32 X 5 8 HSC SS 1 00 14 83 79070 SCREW 6 32 X 1 2 HSC SS 2 00 15 8379 114 SCREW 10 32 X 1 2 LG SKT HD CAP SS 200 16 83 79119 SCREW 10 32 1 LG 5 55 4 00 BREWER Spectrophotometer Maintenance and Service Manual RA oret ine of ving a tag deret eri fom one Ma 2 cort n Y tet mewe 0 Luo M Rm y nes che conten P en 4 Daam Ty xS teneri 244 8 Part ere ie o iix vd ihe en hne Figure 7 6 2 1 PISCRPTION DE 12 RELEASE 10 LATE 18 Qux See Ee eus PARTIAL SECTION PART OF SOME HARDWARE NOT SHOWN FOR CLARITY HOTS A LENS CORE WU SOE FLUSH BOTTOM OC CURED SURFACE OF Mit D E aC LOGUN EED UING bac gU TUE ON 10A OF THC CUNEO SUPTACC ON MEM AND T SET SCREW te POSS EM 13 AMD LOCOMA
44. MPUTER GENERATED onn MENA 85 94 Figure 7 6 4 4 74 BREWER CAPACITOR WIRING REF PIN 13 lt 1 gt GND LUG PIN 4 lt C2 gt GND LUG PIN lt C GND LUG PIN 5 C4 GND LUG FRONT VIEW CAPACITORS NOT SHOWN CARL NOTES 1 ASSEMBLE THE NECESSARY PARTS TOOLS ETC 2 NOTES ON RESISTORS RESISTORS ARE 10 MOUNTED TO PROVIDE CLEARANCE FOR THE GLASS PROTRUSION ON THE BOTTOM OF THE PHOTOMULTIPLIER SOLOER CONNECTIONS MUST BE INSPECTED TO INSURE THAT NO COLO SOLOER JOINTS EXIST 3 CARRY OUT THE ASSEMBLY SEQUENCE AS DESCRIBEO OM 5 25 2 COMPUTER GENERATED DRAWING FILENAME 25 NOTES ASSEMBLE AS PER AP BA P42 PERFORM ACCEPTANCE TEST PROCEOURE PER 1 8 42 ATTACH AM ADHESIVE LABEL INDICATING ASSY PART NO ISSUE ASSY SERIAL N AND SERIAL WHERE SHOWN 4 SUITABLY COVER OPEN END OF ASSY 10 PROTECT AND SECURE O RING 5 PLACE FINISHED ASSEMBLY IN CLEAN PLASTIC AMD LABEL MTH PART AND ISSUE 4 Figure 7 6 4 6 75 scat wis uox assy 2 Dan 891117 mensions Spectrophotometer Maintenance and Service Manual 50 mm omm d 1 831442 cw RA FIRST ISSUE DCh 351 2 REVISE NOTE ADO TEST PROC RELCCATE R15 5810211 Cw 3 Ass PROCEDURES 964023 cr DOCUMENT NO 3 NOTES QN CAPACITORS TEFLON TUBING SHOULO BE PLACED OVER THE CAPACITOR
45. NSOR OP SW SLOT 0 003 APR SLEEVING HEAT SHRNK 0 093 SLEEVING HEAT SHRNK 0 046 TIE CABLE 4 1 8X0 1 NYL 18 SCREW 4 40 X 8 BUTTON H SCRW 4 40 X 1 2 BUTTON HD SCRW 2 56 X 3 8 BUTTON HD SLITMASK SENSOR MNTG NUT MKIII SLITMASK SENSOR MNTG BLK SPECTR MECH ASSY RE COMBINING SHUTTER STOP WASHER 4 FLAT SS SCREW MACH 6 32 X 1 2 HX HUT 6 32 HX HYLON 69 100 100 100 200 200 100 100 200 100 1 00 200 200 200 100 100 400 1 00 2 00 1 00 400 1700 100 400 100 100 500 18 00 900 200 200 0 10 2 00 400 1 00 1 00 0 13 120 40 100 100 100 100 1 00 1 00 100 100 1 00 1 00 BREWER MKIII Spectrophotometer Maintenance and Service Manual ms Went yer 1 as CO 12 FW wet ROUTE Pw Vil NAL 2 12 X DAME 9 10 HE SONAM IME OF MOUE SPORT OF Alu 8 TO 19 5 10 Crubl lie um uio Jun OF 1 BR HC aE SEPE 5 FoU Diete gi m com eren ouo ems 7 a 6 mul pL ro donem
46. NY REASON gt 9 ENO OF 6050 a iet DOME 6 SAAC SEALE PLATE USED TO FI SEUL 196 EM TQ THE UD CM 3 05849 COSTING ARORA USED 10 MOUNT THE QUARTI WRAP 2 QOL WE 40 98 SISI FOP USE 4 WB IUS TALL T REFER 10 FIGURE 2 STALL UME ASW LAC MEUS 5 AND 16 Figure 7 1 5 1 27 ADAFIER 3 TO TROU CH CG RENOVE DC 2 204 SURGE SUPP s mee cornea er cam fear 4 PL ACCESSORY at Laun TESTING ETC ac 199 DATA CLE 15m Computed WSIRUMENTS INC OPTION 8 KIT INSTALLATION COMPUTER GENERATED BA C113 086 0314 esame Fey Biss DOCU NO ASSY PART OF Ba COt 01 8 COVER ASSY PART OF 01 OR 85 1 FIGURE 2 UVB PRISM INSTALLATION SCALE 1 7 16729 LSCHEC EE acm utei TEESE WE OPTION C KIT INSTALLATION UVB BREWER MKIII Spectrophotometer Maintenance and Service Manual 113 Option E Kit installation No PartNo Description Qty 5 1 BA C91 Azimut
47. QUARTZ DOME AND EXTERIOR QUARTZ WINDOW Spray with window cleaner and wipe clean with a soft doth LAMPS Dampen a soft doth with methyl or ethy alcohol and wipe gently POLARIZING FILTER Use only a soft dry cloth or tissue to remove dirt and finger marks The filter should always be wiped gently to avoid marring the finish DIFFRACTION GRATINGS Do NOT touch or attempt to dean mA BREWER MKIII Spectrophotometer Maintenance and Service Manual 7 0 BREWER REFERENCE DOCUVENTATION Section 7 1 Overall Aeserrbly and Cables Configuration Contra Diagrams 7 1 1 Brewer Systems Drawing BS C1000 7 1 2 Brewer Asserrbly BA C231 7 1 3 Option B Kit C91 Azimuth Tracker 7 1 4 Option C Kit UVB Installation C84 7 1 5 Power Cable Extemal W12 7 1 6 Data Cable Extemal W68 7 1 7 Basic Spares Kit C112 Hectronics Spares Kit C222 Tracker Stand Tie Down Kit Installation 7 1 8 Section Overview Fig 7 1 1 Configuration Control Diagrams Family Tree for the complete MKIII BREWER systems including all possible purchase options Fig 7 1 3 Basic Brewer Assy BA C231 Fig 7 1 4 Option B Kit Azimuth Tracker For futher information see Sec 7 7 1 Fig 7 1 5 Option C Kit UVB Fig 7 1 6 AC Power cord BA W12 A 120V North American 18 BREWER MKIII Spectrophotometer Maintenance and Service Manual Brower 139527
48. RAP S ITEMS 10 AS REQUIRED 3 BAS LABEL WITH CURRENT DRAWING NUMBER AND 45 PER THIS DOCUMENT Figure 7 33 ELO CET ASST 8 02 07 531 ae 5 X em E e WHEE _ pc 1 INTERCONNECT HARNESS Peewee _ 7 y OCSCRP KOH RELEASE Baci NOTES LXcoar ALL UNUSED TERMINALS WITH RIV ITEM 71 REMOVE DISCARD KEYING WASHER PART OF 4 FROM FINGER TIGHIEH BOOT 3 ONTO 5 SMICH WITH PROPER OLSIGHATIONS AS SHOWN FOR Ba w45 ASSY 16 NOT VSCO FOR BA WS5 e ASSY EMIS 5 AND 10 NOT USED 6 GAG ANO LABIL WIH DRAWING NUMBER AND CURRENT REY 5 THIS DOCUMENT aah eee ta FURNALE Figure 7 34 39 SORPTION 455 7 Fa rogas D Ebor usune we ETE FTE ave wen ITE CONTROL SWITCH CABLE ASSY nee IRE BA wss BREWER Spectrophotometer Maintenance and Service Manual 41 NOTES A MAKE TWISTED PAIRS OF BLK REO amp WHI GRH AS SHOWN enm no esere me 2 USE TIE WRAP S MEMS 6 APPROXIMATELY EVERY 7753 BESCHEC m poemen ACT owe 9 CUAL
49. S130 BM S88 592 594 5129 5127 5121 1014 010 50 10 033 8146 124 83 79 067 83 51 802 83 79 047 83 78 046 83 79 027 83 79 051 83 79 068 83 79 070 83 87 179 8387 211 83 95 747 83 95 748 83 95 749 83 95 830 85 10 905 85 10 145 85 10 150 98 10 010 88 08 122 89 70 030 99 20 028 99 20 25 85 80 450 83 51 763 83 51 765 83 51 754 5132 5131 51128 BM S83 83 95 011 83 79 044 83 40 257 BREWER MKIII Spectrophotometer Maintenance and Service Manual DOUBLE SPECTROMETER ASSEMBLY Description SPECTR MECH ASSY DISPERSG SPECTRMECH ASSY RE COMBINING GRATING SUPPT ASSY DISPERSING GRATING SUPPT ASSY RE COMBINING CORRECTION LENS SPHERICAL MIRROR SLITMASK MOTOR MOUNT LENS RETANER MIRROR MOUNT PLANO CONCAVE QUARTZ LENS EXIT SLITMASK SLITMASK MOTOR MOUNTING BLOCK WASHER CORRECTION LENS FLAT MIRROR 1 5 x 1 5 3mm MOTOR STEPPER 12448 STEP CONN D 15 CIRM CRIMP B SCREW 6 32 X 5 16 HX SCREW8 32 X 3 8 BUTTON SCREW 4 40 X 1 4 HSC SS SCREW MACH 6 32x3 4 HX SCREW 2 56 X 1 4 HSC SS SCREW 440 X 1256 55 SCREW 6 32 X 38 HSC 55 SCREW 6 32 1 2 5 SS SCREW 6 32X1 2 FL HD HS SS SCREW MACH 10 32X58 FHH WASHER 2 SPLIT LOCK 55 WASHER 4 SPLIT LOCK SS WASHER 6 SPLIT LOCK SS WASHER SPECIAL 7 81D X1 ANTISEIZE LUBRICANT ADHESIVE SEALANT LOCTITE 242 ADHESIVE SEALANT RTV 3145 SHEET CLOSED CELL NEOPRENE 1 16 RES 100 K 1 4 W 5 CARBON SE
50. SHER 11 reatie ftu 24 PROF 10 SO hel 05 FLENI PERPCHOCULAR Une SY BY SECURE e LINO HI QE 23 APPLY AV FROM CALIBRATION or rouse LAMP ASSY 6 CONC LENS LAOS 10 fe 21 AME IPIE OF rion SS ALCO 0 65 RDNA F96 BREWER MKIII Spectrophotometer Maintenance and Service Manual 1 FORE OPTICS ASSY Item No Part No Description Qty 1 2 04 Front Optics Tube Assy 1 00 3 BA F06 Rear Optics Tube Assy 1 00 4 BA F08 Filter Wheel Housing Assy 5 Filter Wheel Housing Assy 1 00 6 BA F96 Calibration Lamp Assy 1 00 7 BA F106 Iris Actuator Assy 8 106 Iris Actuator Assy New 1 00 9 81 90 630 Lock Conn SI Ret 2 00 10 50 10 030 Motor Stepper PPS 0 380 1 2 00 11 88 85 653 Gear 24T 48 1 8F 1 8B NY 2 00 12 81 46 124 Conn D 15 Cir M Crimp B 2 00 13 14 15 83 79 048 Screw Mach 4 40 x 5 16 HX 4 00 16 83 05 748 Washer 84 Split Lock SS 4 00 17 83 79 047 Screw 4 40 x 1 4 HSC SS 4 00 18 83 51 786 Serw 6 32 x 5 8 Button HD 2 00 19 20 83 95 604 Washer 84 Intemal Tooth Lock 55 4 00 21 83 95 605 Washer 6 Intemal Tooth Lock SS 2 00 BREWER MKIII Spectrophotometer Maintenance and Serv
51. Se COMPUTER PRODUCTS TAT Sawin 9 GETEY Brae BBS BREWER MKIII Spectrophotometer Maintenance and Service Manual PIII nd ped anckcling the monti fee near TN E eis e om T ipd seine pan be mad nde 726 Wie 527 Mit 2 ra supply gna He PS placita ig ie gt ig te COMPUTER PRODUCTS y Mew x oh Eun x Sess Figure 7 2 2 3 36 P BREWER Spectrophotometer Maintenance and Service Manual BREWER REFERENCE DOCUMENTATION Section 73 Internal Cabling Data Cable Azimuth Cable DC main amp lamp Interconnect Hamess Control Switch cable assembly Lamp Wiring Hamess assembly Motor Connectors Cable assembly Main Lamp and HV Cable assembly Hv board to PMT Cable assembly 73 1 7 3 2 7 3 3 734 73 5 7 3 6 7 3 7 7 3 8 BREWER MKIII Spectrophotometer Maintenance and Service Manual oum 2 6 wo uw 10 REMOVE THE SHIELD ON THE FLAT CABLE INSTALL HEATSHRINK OVER THE GROUND WIRE ON THE FLAT CABLE AND CONNECT TO PIN A ALONG WITH BRAIDED GROUND CABLE INSTALL STRESS RELIEF CONNECTOR LABEL PART NUMBER ON GROUND SIDE OF CABLE WITH PERMANENT
52. THE TELESCOPING BUSHINGS amp NYLON SHELL AND SCREW THE TIGHILY 70 THE CONNECTOR BY HOLDING THE SHELL IN PLACE WITH A MATING CONNECTOR SHELL TIGHTEN CABLE CLAMP MUST OVER CABLE JACKET END A MIN 1257 ZAN IMST SHIELD AND DRAIN WIRE TOGETHER SOLDER TO A 36 PIECE OF WIRE vis 5 HEATSHRINK REM 1 216 8 COVER 17 PIECE HEATSHRINK 10 nx ET SHRINK A 2257 PIECE HEATSHRINK ITEM 9 OVER EACH TWISTED PAIR AND COVER 1536 09 04 e Seas ee one END OF CABLE JACKET WITH 5Q PIECE OF HEATSHRINK 17 owe FY frees INSTRUMENTS INC SEIR TT 54 eee teem ohare onl DATA CABLE ASSY RS422 COMPUTES opero Duane Figure 7 1 7 29 BREWER Spectrophotometer Maintenance and Service Manual BA C222 Brewer Electronics Spares Kit No PartNo Description Qty 1 12501365 2 Dessicant Cartridge 1 00 2 70 10 015 Dessicant Bag 1 00 6 99 Azimuth Tracker PCB Assy 1 00 7 103 Power Supply Assy 1 00 8 BA P23 High Speed Amp PCB Assy 1 00 9 BA E124 Elec PCB Brckt Assy Brew 1 00 12 93 70 401 Standard Lamp 3 00 13 93 70 406 Lamp HG Germicidal 3 00 14 87 50 088 Power Supply Switching 5VDC 10A 1 00 112 Brewer Standard Spares Kit Item No Part No Description Qty 1 12501365
53. and of the computer serial port together running the communications program in full Duplex mode you should see characters echo back on the keys you just typed Now disconnect the connection to pins 2 to 3 and continue typing you should not see any characters echo back on the computer screen You have just confirmed that the computer serial port is operating correctly If the computer did not echo the characters the computer serial port is at fault and you must get the computer repaired before any further tests are done Make sure the serial communications program is on the correct baud rate of 1200 baud and that you are selecting the correct serial port Refer to the communications program manual for correct operation e You can now test the functionality of the RS422 adapter at the computer by removing the cable from the RS422 adapter and connecting pin 1 to 3 then typing keys similar to d and switching connections to pin 2 to 4 and testing again Disconnect the wires and you should see characters echoing back The RS422 adapter is operating correctly if the previous tests are the same as observed in d If not then either tne RS422 adapter or the power adapter is at fault Using a voltmeter check the output of the power adapter There should be approximately 9 volts measured by the voltmeter If the voltage is normal then replace the present unit with another RS422 adapter and test again If the tests have passed to this point
54. approximately equal to 17 volts the lamp should be replaced 431 Mercury Lamp Heplacerment c2 Before starting disassembly ensure that the larrp is definitely open circuited with an ohmmeter across pins 6 and 9 of J111 lamp connector ensure P111 is disconnected To replace bulb loosen the two thumb screws item 6 Fig 7 6 2 2 and carefully withdraw the lamp holder Inspect the lamp and replace if defective or has blackened in color The SL lamp should also be checked at this time for blackening Which could reduce the amount of light from passing through to the fore optics Do not touch the lamp with bare hands use a tissue or soft cloth Ensure the lamp is tight in its socket and cleaned with alcohol after assembly Re asserrble the lamp by reversing above steps and test the lamp with B1 and HG commands If there is no voltage across the lamp in the initial measurement the next step is to monitor the test point while using the Brewer software from the status ST menu d Remove top cover and spectrometer cover and check to see micrometer has not shifted refer to final test record for the calibrated setting or the sheet attached to cover A manual check to ensure micrometer setting is in the correct position is to set filters to position 0 0 filters out position Connect a voltmeter to the ratemeter test point E23 on the Main Electronics board and manually scan the micrometer from mmto 10mm Assuming the slitmask is in HG positio
55. ate Replace the bulb with a new one ensuring new bulb is not touched with fingers use a tissue or soft doth and dean with alcohd after installation if the bulb is blackend it should be replaced regardiess if it is operational or not Re asserrble and install connector and test the lamp with the B2 command BO tums the larrp After this another standard lamp test should be tried If there is no success there is a possibility of circuit failure on the Lamp Control board or the Main Blectronics board Send the command to tum the Standard Larrp circuit on e Measure the next testpoint U14 pin 15 The testpoint should switch from 5 volts to O volts as this circuit is turned on and off 1 If this point does not change the Main Electronics board should be replaced if there is a spare unit available Otherwise SCI TEC should be consulted 2 After the board has been replaced another Standard Lamp test should be done 10 BREWER MKIII Spectrophotometer Maintenance and Service Manual e3 If this test is successful the system should be operating 64 If lamp does not come on following the replacement of the Main Electronics board then SCI TEC should be consulted f If there was no indication of a voltage swing at the lamp control board there is a possibility that either tne cable which connects of the Main Electronics board to Lamp Control board is disconnected or has become defective It s
56. ating program type quitia to get out of Brewcmd To run the Brewer operating program type BREWER i Uploading new Firmware and configuration files As SCI TEC develops new firmware and features it is now possible for the customer to upgrade the fimmware without having to open the cover to the Brewer The New Electronics has incorporated Flash electrically erasable program memory and the system is capable of being updated from the PC The procedure below will provide a step by step process to upload the fimmware and also upload the configuration file which is erased when the new firmware is loaded This disk is supplied with the instrument when first delivered or will be sent out to the customer when firmware updates are done Copy the newtop bin or topviirit bin file received from SCI TEC to the c Nbdata mn subdirectory Change to the directory c odatalnnn by typing the command bdata onn Run Brewomd exe by typing brewome Eventually the following statement is displayed 85 BREWER MKIII Spectrophotometer Maintenance and Service Manual using cosmac mode at 1200 baud on port 1 tracing is eff should be displayed If the command helper is entered a list of available commands will be displayed Type Loadmode s to change modes Eventually the following statement is displayed using loadmode at 1200 baud con port 1 tracing is off 1 Type loacmode 4800 Eventually the following statement is d
57. b2 If the test is normal the system is probably operating correctly C Check optics and slitmask is the slitmask operating correctly C1 If there is no operation the covers should be removed from the Brewer and the spectrometer and the micrometer inspected It should be set as listed on the final test records The optics should be given a visual inspection and the slitmask position should be exarrined It can be moved by hand and there should be a tug as it moves from one position to the next If the slitmask moves freely from one position to the next without any indication of a holding current the cable from the slitmask motor to the slitmask driver circuitry should be inspected and the continuity of this cable should be checked reference Section 7 9 If it is normal the motor control micro or the motor driver IC on the Main Electronics board may be faulty If a Main Electronics board is available it should be inserted in place of the did one and another test attempted c2 If the ditmask does pull into position on each alternate position of the slits and appears to be aligned to the slits and there is still no indication of counting after attempting another standard lamp test a failure in the or board or faulty components in the foreoptics or photon counter board is possible d Remove the cover from the Main Electronics board 41 Another standard larnp test should be atternpted Ensure
58. e 1996 E ers aret INSTRUMENTS INC BRD TO PMT CABLE ASSY 2a 035 2 CHES 41 Oe BREWER MkIll Spectrophotometer Maintenance and Service Manual BREWER REFERENCE DOCUMENTATION Section 7 4 Electronics Schematics Main Electronics Board Schematics Lamp Control Electronics board Schematic High Voltage Module Schematic High Voltage supply Data Sheet Humidity Sensor Data Sheet 42 74 1 74 2 743 7 4 4 7 4 5 BREWER Spectrophotometer Maintenance and Service Manual 19050521 EE TEENIE e TAH irsuamm ct AMOI qucm NO ART UR ale KIT 1002 EE RTT MM Tanna 7170214 11 5 4 aed Cet LES D I aro L m 2 9 tur ic Ha AC ant 57121 FITS ae KASIN mI 551 Ha 152 353 Z zen ata My p29 421 E pr 22 o riz at 382 1022 ase p dr at vi 220 ter 49 UU MIUT 29404 Figure 7 4 1 BREWER Spectrophotometer Maintenance and Service Manual
59. e 43 ma Seo mee tose en Crane Manes DE P SUCI OF LE APE OTOH mta OS cum 105 EE UK REESE pe 2 BE NA TT ef oot CHASSIS CHO 85 91 907 SIE SECTION SHT 1 FOR POTONG OF DANE MOUNTING 231 L1 Dick eas m mead M erre AN per TRONY VIEW COMER REMEDI Figure 7 1 42 24 i No 91 Part Number 100 BS C91 BM C92 BM C93 BM C94 BM C95 BA W67 BA C97 BA C98 BA C99 BA W18 BA W19 BA W21 BA W22 BA W23 BA W24 BA W30 A D2 1030 002 2 1030 005 2 1030 006 2 1030 007 2 1030 008 2 1030 015 BM C88 8 2 1030 019 2 1030 028 2 1030 029 D1 1030 045 C1 1030 080 A C1 1030 081 A C1 1030 084 BM C88 83 09 220 BA W58 BA W30 B B2 1030 101 166 BA C166 B BM C174 113 188 150 85 80 440 82 20 383 88 99 780 76 99 445 83 10 651 82 10 470 87 50 088 82 10 450 83 09 413 82 20 356 83 08 100 85 10 150 85 10 149 85 10 145 BREWER MKIII Spectrophotometer Maintenance and Service Manual Descripti
60. e Clock amp canverter Crouts 10 10 11 12 13 13 14 14 15 BREWER Specirophotometer Maintenance and Service Manual 50 TEST RESULTS CUT OF SPECIFICATION 60 CPTICSCAHE ANDCLEANING 61 Optics Care 62 Opics Ceanng 7 0 BREWER REFERENCE DOCUMENTATION Section 7 1 Overall Asserrily and External Cables Configuration Contrd Diagrams Systems Drawing BS C1000 Brewer BA C231 Onion B Kit C91 Azimuth Tracker C Kit UVB Installation C114 Power Eternal V12 Data Cable 8 Section 7 3 Cabling Communication Cable asserty 16 17 17 A 555588884 880888 28858833 882 884866 49888 BREWER MKIII Spectrophotometer Maintenance and Service Manual 7 63 Spectorreter S120 Motor 5128 7 6 4 Fhotomultiplier Tube Assembty Hgh Speed Amp P23 Speed Amp Board Schematic Crain PS Photomuttigiier Housing Assy P42 Section 7 7 Brewer Options 7 7 1 Adimuth Painting System Aamuth Tracker and Sand Aamuth Tracker Unit Scherretic Adinnuth Tracker Board Schematic Azimuth Motor Wiring W20 Armuth Power Supply Spedifications 7 72 C UVBFB1 7 7 3 Heater Option C223 Sedicn 7 8 Mein Blectrarics Configuration procedures gaa ty R BREWER MKIII Sp
61. e aigna purchaser and may not be transferred without direct witten consent Should an extended warranty be purchased then the aforementioned in its entirety is applicable for the entire period of time covered by said edended waranty PREFACE BREWER MKIII Spectrophotometer Maintenance and Service Manual This document has been developed to aid an operator when a Brewer Spectrophotometer stops operating or has changed in operating specifications after leaving SCI TEC Instruments Inc SCI TEC It has been developed from the experience of SCI TEC and present users The most likely electronic failures and ones which can be repaired in the field have been documented in this manual Any suggestions on improvements to this manual would be appreciated by SCI TEC 1 0 PURPOSE AND APPLICATION The purpose of this manual is to help the operator diagnose problems with a Brewer Spectrophotometer down to an asserrbly level though not necessarily to a component level The reason is that some components in the assemblies will affect the calibration done at SCI TEC and replacement of these may require instrument realignment or re calibration The information in this manual may be applied by reading the procedures and referring to the corresponding drawing located in the back half of this document There should be no potentiometers adjusted or set screws removed without completely defining the problem area If the information in thi
62. ealant RTV 3145 Adhesive Sealant RTV 738 Adhesive Sealant Loctite 242 120V 1 00 1 00 3 00 4 00 1 00 1 00 1 00 1 00 1 00 1 00 1 00 1 00 1 00 230 1 00 1 00 3 00 4 00 1 00 1 00 1 00 8 88888888 Item No 8998828982889 Part Number 81 15 154 85 10 147 82 10 484 83 25 890 99 31 483 99 31 482 99 31 484 99 31 481 83 51 752 83 51 763 83 51 762 83 51 765 83 79 152 83 79 051 83 79 068 83 79 075 83 79 073 83 79 082 83 79 114 83 79 077 83 79 116 83 87 194 83 87 165 83 87 181 83 87 182 83 87 209 83 87 211 83 87 214 83 87 233 83 40 261 83 40 326 83 40 278 83 40 486 83 40 283 BM C121 83 95 606 83 95 626 83 95 604 83 95 605 83 95 631 83 95 749 83 95 752 83 95 750 83 95 013 83 95 019 83 95 028 83 25 996 76 05 005 88 99 224 212 AP BA C91 TP BA C91 BREWER MKIII Spectrophotometer Maintenance and Service Manual Description amp Chain For 18 Receptacle Adhesive Sealant Pipe Thread Jumper Terminal Block Term Ring Tongue 18 22AWG 6 Insul Wire Hookup 18AWG IRR PVC Red Wire Hookup 18AWG IRR PVC Black Wire Hookup 18AWG IRR PVC Green Wire Hookup 18AWG IRR PVC White Screw 2 56 1 4 Lg Bin Hd Hex SS Screw 4 40 3 8 Lg Bin Hd Hex SS Screw 4 40 5 16 0 Bin Hd Hex SS Screw 4 40 x 1 2 Lg Bin Hd Hex SS Screw 1 4 28 x 1 2 Lg Skt Hd Cap SS Screw 4 40 x 1 2 Lg Skt Hd Cap SS
63. ectrophotometer Maintenance and Service Manual MANUFACTURERS GUARANTEE WARRANTY CERTIFICATE NEW PRODUCT WARRANTY AND LIMITATION CF LIABILITY SCHTEC instruments Inc hereby warrants to its products to be free from defects in material and workmanship for a period of one year from date of purchase SO TECs obligation under this warranty is strictly and exclusively lirrited to repairing or replacing at SCl TECs discretion any such equipment and ar parts thereof which have failed under normal use and service Expressly this warranty does na apply to any equipment or parts which have installed been sujed to abuse neglect and The foregaing wanartyis in lieu of any dher warranties expressed or implied inducing without limitation any imped warranty of merchantability or fitness for a particular purpose and d any dher obligations of liabilities whetsoever in any event for payment of any incidental or consequential damages inducing without imitation damages or injury to a person or property An authorization must be chiained from prior to the rium of any equipment or parts thereof Retumed materia is to be tumed to the factory or other location as may be directed by SOQ TEC freight prepaid and will be retumed freight prepaid not responside for any transportation insurance demunage brokerage duties or coundior charges etc This waranty is given to th
64. h Tracker Assy 1 00 3 83 79 116 Screw 10 32 x 5 8 Lg Skt Hd Cap SS 4 00 BA C84 Option C Kit UVB PartNo Description Qty 1 BA F81 UVB Prism Assy 1 00 2 BM C175 UVB Dome Cap 1 00 3 BM C37 UVB Adaptor 1 00 4 BM C38 UVB Dome Light Diffuser Holder 1 00 5 BM C39 UVB Retaining Ring 1 00 6 BM C40 UVB Diffuser 1 00 l 10 10 15 101 Quartz Hemisphere 50mm MTD 1 00 12 83 10 739 O Ring 2 1 4 ID x 2 1 2 OD x 1 8 8228 1 00 1 13 83 10 737 O Ring 210 x 2 1 4 OD 1 8 8226 1 00 14 83 51 834 Screw 10 32 1 2 Lg Bin Hd Hex SS 3 00 15 83 79 052 Screw 4 40 x 9 16 Lg Skt Hd SS 4 00 17 83 95 787 Washer 10 Sealing 3 00 18 83 95 748 Washer 4 Split Lock SS 4 00 19 83 95 023 Washer 10 Flat SS 3 00 20 114 Option C Kit Installation BA C114 Option C Kit UVB Installation 2 ltem PartNo Description Qty 1 BA F81 UVB Prism Assy 1 00 2 175 UVB Dome Cap 1 00 3 BM C37 UVB Adaptor 1 00 4 BMC38 UVB Dome Light Diffuser Holder 1 00 5 BM C39 UVB Retaining Ring 1 00 6 BM C40 UVB Diffuser 1 00 10 10 15 01 Quartz Hemisphere 50mm MTD 1 00 12 83 10 739 O Ring 2 1 4 10 x 2 1 2 OD x 1 8 228 1 00 13 83 10 737 O Ring 210 x 2 1 4 OD x 1 8 226 1 00 14 83 51 834 Screw 10 32 x 1 2 Lg Bin Hd Hex SS 3 00 15 83 79 052 Screw 4 40 x 9 16 Lg Skt Hd Cap SS 4 00 17 83 95 787 Washer 10 Sealing 3 00 18 83 95 748 Washer 4 Split Lock SS 4 00 19 83 95 023 Washer 810 Flat SS 3 00 2
65. hese units and finally the Main electronics board which houses the photon counting circuits Without this section being operational no testing or measuring can be done 4 1 Preliminary Infomation There are a few points to rernerrber in the event there is a major failure somewhere in the system whether it is the Mercury Lamp Standard Lamp or Light Detection System The error message Lamp not on test terminated is an indication of a failure either in the lamps or in the Light Detection System b Changes in dark count may be symptomatic of a number of problems which may occur in the Brewer If it begins to increase or becomes erratic the slitmask may be causing the fault Note the dark count increases with terrperature It may also indicate motor power problems It can also be used as a monitor for PMT performance If the dark count changes there may be a changing optical condition in the Lignt Detection System A higher dark count can also be the result of a poor ground somewhere in the system or high humidity inside the instrument Grounding connections should be checked especially between the PMT housing to the Main Electronics ground and change the desiccant for high humidity locations more often These items are more applicable in the next section 5 0 but they may be useful in this instance as well 42 Description of Mercury Lamp Circuit See Figure 7 4 2 for the schematic The Mercury lamp circuitry is a constant curre
66. hould be checked for continuity using a ohmmeter If it is good the lamp Control board should be tested for correct operation or SCI TEC should be consulted The lamp control for the standard lamp is very simple pin 2 supplies power to the current regulator VR2 Measure pin 2 when the standard lamp is commanded it should be at 17 volts when on VRZ pin 2 should be at 12 volts if it is not at the 12 volt level then the current regulator circuitry is faulty and must be replaced or the complete board must be replaced Refer to the lamp control board schematic Fig 7 4 2 9 Power can be reapplied and the Standard Lamp test can be re attempted 91 If the test is again terminated and the voltage at VR2 did change on command then the user should test the lamp cable for continuity h If the test was successful the system should be operating correctly 47 Description of Light Detection System Rate Failure A Light Detection System failure can show up in all of the tests that can be done by the user In all cases it will be shown on the terminal as a Not On Test Tenminated message However there will be no error indicated if a direct sun is attempted even though the Light Detection System has failed The system will continue as though there were no problem The Light Detection System is the main section of the Brewer and is made up of foreoptics spectrometer including the high speed amp and the sli
67. ice Manual Vost OF MOTOR SCHEMATIC OPEN NOTES A PASS SENSOR WIRES THRU HOLES IN SPACER BAR AS SHOWN PRIOR ASSEMBLING TO CONNECTOR ANO TIE WRAPPING WIRES AFTER ASSEMBLY SEAL CONNECTOR LEADS USING TEM 14 COMPAR CLNERAIEO OP im Ta wA BA 1088 04 IRIS ACTUATOR ASSEMBLY Figure 7 6 2 3 OUS Ana 0 To J1 ars emi sens 1 OME 0 Ab PER TINS TO A auo m LOE A BE MIT EON A Atu D cun Ve LR OF TAE Come ANE a vam SAE N uerus or ME ASV Var 30 PIMA LACES ETO But at es zom ete is gotu 4 ren pe FUIL LETE MT onte n4 TD Figure 7 6 24 67 BREWER MKIII Spectrophotometer Maintenance and Service Manual 2 A seou p maces 2 aes ark n 7 cs BOO AT SHOWN WOL X YOMAP
68. ill be flashing quickly in 1 4 second intervals The procedure to restore the system back to the Cosmacmode of operation is as follows Exit out of the Brewer operating program to Dos Take the supplied configuration disk and put it into the computer used to reconfigure the Brewer Copy the files from the floppy disk a bdata nnn to the bdata nnn subdirectory using the command copy bdata nm Change to the directory cAbdatannn by typing the command bdata nnn i Aun the program Brewomd exe by typing brewemd This program is a utility to allow the user to communicate to the Brewer Microprocessor and change operating modes or upload files If all the connections are correct the display will reply that Brewer responded and at what baud rate it is communicating using load moda at 9600 baud on port 1 tracing is off It is expected that it will be in Loadmode but it could be in as well To retum it to its normal operating mode type cosmacmode ina The instrument will reset itself by resetting all of its motors and the display will display the following with other status information Motors Initializing When the instrument has completed resetting all of the motors the display will now respond to low level commands BREWER MKIII Spectrophotometer Maintenance and Service Manual Exit out of the Brewcmd program by typing quit and the computer vill
69. ion of the problem there may be a ground somewhere which has become resistive and it should be checked f The High voltage test can be done and the results compared to those in the Final Test Records 9 In hurrid or wet environments the top cover should be removed periodically to check desiccant condition The base and spectrometer desiccants can be removed and dried ovemight at approximately 60 degrees Cif necessary h If these fail SCI TEC should be consulted as to further investigation 16 BREWER Spectrophotometer Maintenance and Service Manual 60 OPTICS CARE AND CLEANING Refer to Rg 761 1 61 Optics Care Never touch the polished surface of optics Hold an optic only by its edges Reduce the need for cleaning optics as much as possible Always use latex gloves when handling or deaning optics Do net reuse cleaning materials SPECTROMETER MIRRORS ND FILTERS QUARTZ PRISMS AND LENSES In the event of dust blow off with rubber hand pump avoid using your breath or use bottled dry nitrogen to remove particles In the event of grease or fingerprints dampen a very soft cloth with methyi ethyl alcohol and wipe gently NOTE Wipe marks will almost certainly remain To remove the wipe marks dampen a soft tissue with a mixture of ether and isopropyl alcohol and wipe gently The tissue should be dampened to the extent that while wiping the mixture evaporates one to two millimeters behind the tissue
70. isplayed fusing loadmode at 4800 baud on port 1 tracing off load top bin or Wait until this task is completed this will take a few minutes The display will display some messages below Erasing Flash memory Writing file top bin to flash The display will show 112 moving dots to show its progress Exit from the program by typing esit Turn off the power of the instrument for approximately 10 seconds and tum it back on Run the Brewomd program by typing into by typing opmode 9600 e Waiting for mode change to complete is displayed and eventually the fan tums on if the heater option is ordered and the display will eventually display using opmode at 9600 baud on port 1 tracing is off Type readlog to display any errors encountered Send the configuration file to the microprocessor by typing putcfg Lbrewnnn cfg inte Wait a 1 5 minutes to transfer Type readlog v to clear the log buffer and see if any errors occurred during the configuration installation Type useconfig motors should now initialize When complete readilog 10 confirm everything is ok Type save i number should appear This tell you how many configuration writes you have left BREWER Spectrophotometer Maintenance and Service Manual The number is 4 should be displayed Go to Load mode by typing 1oadmode The display will
71. k to the Cosmacmode 1 If the power supply values have changed or missing altogether the power connections should be checked If they look as though they are BREWER Spectrophotometer Maintenance and Service Manual normal and the voltages are still not at proper levels replacement should be considered However there may a short circuit in one of the assemblies causing the power supply to be loaded Shut the power off and disconnect the power connector J1 from the Main Electronics board and from the J4 Lamp control board Repeat the voltage measurements at the connector and see if all the voltages are present If the voltages are correct then determine which assembly is at fault by installing the connectors one at a time Replace the main power supply if necessary and ensure when first tumed on that the assemblies are disconnected to allow setup of voltages to correct values The main 5 volts monitored at the main board should be set to 5 0 volts with the single potentiometer on the main power supply If the flashing LED on the Main Blectronics board indicates that it is nct in the cosmac mode then the procedure to change it back to cosmac mode is described below Exit the serial communications program and change to the subdirectory c bdata nnn Type v and confirm that the instrument has responded and observe what mode it has come up in The program will display the same mode as the mode observed with the
72. l the photon counter cable should be inspected to see that all connectors are in property and there are no broken interconnecting wires Finally if an oscilloscope is available it can be used to monitor testpoint on the high speed amp board and then pins 1 2 3 4 and 12 13 14 and 15 of the SN75114N If these signals are normal consult SCI TEC before proceeding further e2 If any of the signals are missing or are not dean square waves replace this board f If all of these tests fail there is a probable optics fault in the system and consult SCI TEC before proceeding 49 Description of Slitmask Stepping motor control The stepping motor control circuitry provides for the control of each stepping motor through individual motor microprocessors and stepping motor driver integrated circuit This type of motor control allows the system to move the motors simultaneously and to monitor the sensors more efficiently such that resetting of the motors can be done much more Brewer electronics All of the motor are controlled by the main processor through a serial called Each motor is optimized for speed and taylored to the each function in the Brewer The configuration file is induded with the control software to allow changes and updates to the system The procedure is included in the disk which contains thoses files The configuration file is optimized for each instrument and normally does not require operator modificatio
73. n O HG the lamp is on and zenith prism is pointing to the lamps then the voltmeter should indicate peaking counts at 3 positions which are the mercury lines The micrometer should be left in the position of the second largest peak from the Omm end of the micrometer This is the proper position to start a HG test for Qzone SO2 measurements and which should have a successful conclusion e At this time another complete mercury lamp test should be atternpted If this test is successful the problem has been located and test results should be accurate not there is still a possibility of a failure slitmask failure or optics failure BREWER MkIll Spectrophotometer Maintenance and Service Manual f Attempt a standard lamp test The standard lamp has a much higher intensity and does not depend on the position of the rricrometer and slitmask as much as the mercury lamp test f1 If tne standard lamp test operates correctly the printout should be examined carefully to see if any characteristics have changed If the dark court has increased significantly this may be an indication that the alignment has changed and may require a miror adjustment Check to see if any of the intensities or ratios have changed which may indicate that the optics have deteriorated or the PMT performance or counting has degraded If the standard lamp test appears to be normal it is advised the user contact SCI TEC before proceeding 12 If the standard
74. ns unless recommended by SCI TEC 410 Description of Photon Counter Circuitry A schematic diagram of the photon counter circuitry is given in section 7 4 1 page 52 The photomultiplier signal which has been amplified divided and driven by a line driver on the photomultiplier and pulse amplifier board is received by a line receiver on the Main Electronics board This signal is fed to a pair of redundant binary counters The counters are each connected to output ports which are in tum connected to the data bus of the system microprocessor The main gate is generated by an electronic circuit that provides a very precise gating signal to enable counting for a specific width of time The microprocessor decides when the pulse counting circuitry is initiated and the circuitry then triggers the gate to allow counting of the photons _ BREWER Spectrophotometer Maintenance and Service Manual 411 Description of High Speed Amp Board The photomultiplier and pulse amplifier board are enclosed inside the photomultiplier subassembly The sub assembly is designed to allow access to the pulse amplifying circuitry without upsetting the alignment of the PMT or the optics The photomultiplier is an 9789 type It is endosed with a magnetic shield that is at the high voltage potential of the photo cathode area on the shield is open to aliow light to fall on the cathode A High voltage
75. nt source designed to keep the current constant the temperature range of the instrument A voltage regulator connected to a specially selected resistance wire regulates the lamp current with minimal circuitry while improving on the performance of the previous design In this way the lamp circuit is regulated BREWER MKIII Spectrophotometer Maintenance and Service Manual 43 Trouble shootingProcedures for Mercury Lamp Circuit a The Mercury lamp test Fails and software responds with lamp not on test terminated b Retry the test and look through each viewing tube to see if the larnp is on Ensure the zenith prism and the filter wheels are in the correct position Coserve temperature of instrument If Brewer temperature is less than 20 degrees Celsius the lamp may be too cold and may not Start illuminating All that may be required is to tum on the Standard Lamp which will warm the Mercury lamp in extremely cold environments C If the lamp is on check filter wheel positions 1 0 c1 If the lamp is not on there is a possibility of a lamp failure The first step is to perform an AP A D voltages printout test and compare the results with previous tests Pay particular attention to power supply and HV voltage The second step is to measure the voltage across the lamp at pins 6 and 9 P111 Reference Section 7 6 2 2 The voltage should be approximately volts with the lamp off and 13 volts with the lamp on If the voltage is
76. oard transistor is connected as a current pump and driven by one of the outputs of the J K flip flop on the high speed amplifier board The pulses from the flip flop are integrated by an RC network then scaled by an op Temperature monitor The temperature monitor is a temperature sensitive bridge using YSI linearized thenristors The bridge output is amplified to produce suitable scale for the A D convertor There are six thermistor circuits available one of which is located in a hale drilled in the side of the front flange of the PMT housing Of the other five they are used to measure points around the instrument as status information One of the sensors is used to measure the outside temperature BREWER MKIII Spectrophotometer Maintenance and Service Manual 4 13 Description of the Real time Clock and A D convertor The real time clock circuit is a battery backed up dock with integral static random acces memory A lithium battery is used to keep the clock operating when there is no power applied to the Brewer The clock also supports the day date and year and is year 2000 compatible The A D converter has a 10 bit conversion resolution and is built into the microprocessor Analog multiplexers are utilized to select the channel to monitor The AP routine is the main routine that accesses the data and displays the information on the PC monitor o
77. ometer motor wiring dagram 7636 7 6 4 Photomultiplier 7644 Tube Assembly 7642 Hgh Speed P23 7643 Hgh Speed Board Schematic 7644 Dynode Chain P25 7645 Photomultiplier Housing Assy P42 7646 62 BREWER MKIII Spectrophotometer Maintenance and Service Manual SECTION sons assy 6 SECURE PACE RN 26 rea 4 MUST DE ROTATED IBO 1D AVOID INTER SUPEOET POST USE 1 FLAT WASHER OHLY MDI BOATENG CABLE CONNECTORS 10 MOUNTS BRAC KTS US PROOF 10 APPLY ANTE SHOE LUBRICANT TO 3 4 OF THEA IN SCREW AMD wet OFT EXCESS LUBRICANT 00 NOI WPL OFF THREADS PISTALL 10 41 En wo TM COMPLETE OPTICAL ASSY BREWER Fareoplics Spectrometer BREWER MkIli Spectrophotometer Maintenance and Service Manual BA C191 B Brewer Complete Optical Assy Item No Part No Description Qty 1 BAC192 MAIN FRAME ASSY 100 2 196 LIGHT COVER ASSY 100 3 1 FORE OPTICS ASSY 4 PHOTOMULTPLY HOUSING ASSY 100 5 6 BA S120 DOUBLE SPECTROMETER ASSY MKIII 7 10 FORE OPTICS ASSY 1 00 8 52 THERMISTOR ASSEMBLY 9 BM C70 OPTIONS CONN BRACKET 1 00 10 79 THERMISTOR TEMP PROBE 55 100 11 51298 DBL SPCTR
78. on Nameplate Altered Azimuth Tracker Azimuth Tracker Unit Wiring Diagram Azimuth Tracker Enclosure Adjusting Screw Angle Bracket Counter Bracket RS232 Lightning Protector Assy Drive Shaft Assy Drive Motor Assy PCB Assy Power Connector Assy Control Cable Assy Safety Switch Assy Power Switch Assy Power Indicator Assy Fuse Holder Assy Power Cable Azimuth Tracker 110V Azimuth Spindle Bearing Housing External Bearing Housing internal Plate Mounting Hub Drive Plate Spacer Ring Short Terminal Block Shield 2 1 4 Lg Drive Bearing Stop Bottom Mounting Bar PCB Top Mounting Bar PCB Tracker Stand Assy Short Tension Arm Assy Azimuth Drive Long Tension Am Assy Azimuth Drive Cover Assy Terminal Block Shield 5 1 4 Lg Spacer Hex 6 32 x 3 4 Lg Accessory Power Cable Assy Power Cable Azimuth Tracker 220V Bearing Altered Foam Disc 2 1 2 Dia x 1 Thk MOV Assy 110V MOV Assy 220V Fuse 4A 125V Slow Blow Azimuth Tracker Ground Strap Option Kit Installation Azimuth Tracker Terminal Shield Azimuth Tracker P S Shipping Crate Mount Cable Tie Adhesive Back Clamp 1 2 x 1 2 x 10 Retaining Ring Intemal Spiral Snap Hose Clamp 2 1 2 OD O Ring 8 ID 9 16 OD x 3 32 Tenminal Strip 4 Contact Power Supply Switching SVDC 10A Terminal Strip 12 Contact Spacer 1 4 OD x 1 8 ID x 1 8 LG AL Clamp 1 4 x 1 2 x 13 32 Bushing Strain Relief Liq Tite Adhesive S
79. r further information on Option C CAUTION Quartz Hemisphere UVB Dome is fragile Ensure UVB Dome is removed and packed separately when the Brewer is transported 7 7 3 Heater Option 7 7 31 76 POWER SUPPLY TRACKER POWER ON OFF SWITCH LIGHTNING PROTECTOR BOX NORTH POSITION De GROUND STRAP PART OF TRACKER ASSY INSTALL 3 3 8 BOLTS FOR STAND LEGS mco dis 97 as Feu BREWER Spectrophotometer Maintenance and Service Manual ban Fe 127 DANE GAIA CME 10 Gace Figure 7 7 1 2 TO P100 POWER CABLE PARI Of BA W30 82 000 220 ATSY 1 _ AC POWER IN Se AZIMUTH TRACKER COMTROL CABLE INSTALLATION REF OMY 4 10 32 SCREWS FOR SECURING BREWER TO TRACKER 3 3 8 SCREWS FOR LEVELLING BREWER OPTICS SAFETY SWITCH amp STEEL CABLE LED SENSORS AND BRASS BLOCKER FUSE HOLDER 2A TIME DELAY INSTALL 3 3 8 BOLTS ACCESSORY AC POWER TO EARTH GROUND SUPPLIED BY CUSTOMER DATA CABLE TO COMPUTER Ll win vent ste seas tv nt mcm eem praise CONTPOL CABLE 200 JUMPERS AEM 61 wie 2 POWERLINE A 927 EM FILTER TO J200 POWER IN PART OF Ga wi8 COMPLI GENERATED 85 C Dai Lr UNIT SCHEMATIC AZIMUTH TRACKER
80. r saves it to a file or prints it on the printer 15 peu oa BREWER MKIII Spectrophotometer Maintenance and Service Manual 50 TEST RESULTS OUT OF SPECIHCATION Whenever any tests are out of specification HG DT RS Standard Larrp the following should be done or considered If the deactime has increased or decreased significantly the slitmask may have become misaligned or a ground in the instrument wiring may have become resistive In either case both items should be carefully inspected Also hign hurridity inside the instrument may cause abnormal deactime results b Lamp output may have deteriorated and the lamps may require replacement They can be inspected as mentioned in the previous sections and replaced if a spare asserrbly is available The optical surfaces within the zenith prism may have become smudged with a fingerprint or may have become dusty over a period of time It should be cleaned refering to section 6 2 d The micrometer may be sticking and net in its exact location after a Mercury Lamp test It should be inspected and the driving gears may have to be carefully cleaned with tissue and a little Dark court is a very good characteristic to monitor which is printed out in most tests When the dark count of an instrument changes or becomes erratic a slitmask Run Stop test should be done to see if there are any changes in the slitmask circuitry if this does not give any indicat
81. rent and voltage The current channel 14 will go to zero of very dose to zero and voltage channel 15 will go higher than 14 volts if the lamp is unplugged bumt out C Check to see if the lamp is on Try the B2 command which tums the lamp on manually and check if the filtenwheels and the iris are in the proper position They should be similar to the positions indicated on the computer display Retry the test c1 If the test is terminated again Try a mercury lamp test If the mercury lamp test operates correctly then the user will know that the Light Detection System is probably operating correctly If not a mercury lamp calibration should be done and the Standard Lamp test should be repeated C3 If the mercury lamp test is normal the spectrometer cover should be removed and another standard lamp test done while observing the slitmask If the standard lamp fails again while the slitmask is operating correctly SCI TEC should be consulted 04 If the mercury larnp test is not normal there is probably a failure in the counting electronics and section 4 7 of this manual should be consulted 46 1 Standard Larp Replacerrent Before starting disassembly measure that the lamp is definitely open circuit with an ohmmeter across pins 1 and 5 of J111 lamp connector Reference fig 7 6 2 2 the Standard Lamp is located above the mercury lamp attached to a removable plate Remove the 4 40 flathead screw item 16 and withdraw pl
82. s document is not sufficient it is recommended that the user contact before dismantling of any main and sub assemblies 2 0 BQUIPMENT REQUIRED 1 Voltmeter either analog or digital capable of measuring from 1 millivolt to 2000 valts DC 2 Ohmmeter primarily used for checking continuity of cables 3 A dip on or irdine current meter 4 A digital VOM with in line current capabilities of 2 amps is sufficient rather than items 1 2 and e g The DVM supplied with an extemal UVB Lamp is good and can be used 5 An oscilloscope may be required 1 millivolt 20 megahertz bandwidth 6 An extemal UVB lamp is very useful when the intemal standard lamp appears at fault 7 A second computer is handy to have available in case the control computer is suspect 8 Atenminal communications program such as Telix Procomm Xtalk or Windows Terminal BREWER MKIII Spectrophotometer Maintenance and Service Manual 3 0 MAJOR EQUIPMENT FAILURES A major equipment failure is defined as being a condition where the operator finds there is no communication between the Brewer Spectrophotometer and the extemal IBM compatible personal corrputer commands will go to the Brewer and no information is received by the PC This can be defined as a no operation condition 3 1 No Operation Condition No Power indication It is assumed the BREWER has power as indicated by the GREEN LED light on the instrument If the light is no
83. t illuminated check that AC power connections to the BREWER reference Sections 7 1 and 7 2 are correct If there is still a no power condition then remove the BREWER top cover and check if MAIN power supply cover is warmer than ambient If the cover is not warmer than the instrument then perhaps the fuse requires replacement reference fig 7 2 2 Check the two visible fuses next to the power supply cover and item 21 from figure 7 1 3 1 Ensure the AC power is disconnected If any of the fuses need changing exchange with the appropriate replacement To check the fuse inside the power supply first disconnect AC power to the Brewer and then remove the MAIN power supply cover four 6 32 screws and measure or visually inspect the fuse and replace if necessary When re installing the cover ensure the connectors P1 and P3 remain connected If the power supply appears to be normal then perhaps the LED is defective or a connection is faulty The main power supply voltages are best checked at testpoints on the Main Electronics board J23 reference chart Pg 5 When the control computer is given a RESET RE command then the Brewer should respond with the following message to the PC or printer BREWER OZONE SPECTROPHOICMETER Horm AES SCI IEC CANADA VERSICN 1 Jan O1 1998 If the instrument does not reset the problem is normally in the Brewer However the PC software can get corrupted so it may be necessary to check that the proper software is
84. th a spare board Ensure all cables removed are reconnected to the original connectors Normally the spare Main Electronics board is preloaded with the same parameters as the one in the instrument Therefore no reprogramming or uploading of the configuration parameters are needed If the configuration parameters have changed then refer to the procedure to upload new firmware and configuration data to the board section 7 8 BREWER MKIII Spectrophotometer Maintenance and Service Manual n If communications to the PC are restored but problems still experienced for lamp output or highvoltage or pulse counting go to section 4 0 to further check for problems 40 CPERATING TEST FAILURES In the Brewer Spectrophotormeter most of the operating tests are done using either the mercury lamp or the standard lamp If any of the other tests fail the user should proceed immediately to a mercury lamo test a standard lamp test SL A mercury lamp test failure or a standard lamp test failure are two major failures which can occur In both cases calibration of the instrument may be affected For the purpose of troubleshooting these two sections have been separated from the main part of the instrument The Light Detection System is made up of the zenith prism foreoptics spectrometer slitmask and slitmask electronics PMT High Voltage Circuitry High Speed Amp considered to be part of the PMT interconnecting hamesses between t
85. the spectrometer cover has been replaced d2 If this test is successful measure the high voltage test point E16 and adjust RA to the value given on the Final Test Record Also monitor high voltage values from an AP test d3 If this test is unsuccessful and the test points are still wrong there rray be a short in the high voltage line somewhere between the HV module and the actual PMT dynode chain Care should be taken when inspecting this area because there can be as much as 1800 volts at the connection points Check the cable for continuity The cover can be removed from the PMT and measure the actual high voltage at the BREWER Spectrophotometer Maintenance and Service Manual connector intemal to the cover and next to the high speed amp board This measurement must be done with a voltmeter rated for 2000 volts or use a highvoltage divider probe d4 If the high voltage is still not as indicated on the final test records contact SCI TEC if the high voltage is operating correctly there may be a failure in the high speed amp board TP1 on the high speed amp board should read 30 millivolts or the value recorded in the Final Manual using the HV connector shield as ground If it does not have the correct value an adjustment of the on board potentiometer can be attempted If this test fails replace the board if a spare is available e1 If this test point is norma
86. tmask and micrometer Adjustments of any of these assemblies should not be attempted unless they are specified in this section Instrument calibration may be affected if they are replaced or readjusted BREWER Spectrophotometer Maintenance and Service Manual 48 Troubleshooting Procedures of Light Detection System If all the tests fail and the message of Lamp nct on test terminated is displayed the user should issue a B2 command to tum the standard lamp With the lamp on inspect the zenith prism filterwheels iris and look through the viewing tube to ensure the lamp is on b If the lamp is on a complete Standard Lamp test should be done b1 If the test fails there is a possibility of photon counter circuitry failure Select the Teletype mode Trive in the Brewer program Remove the cover from the Brewer and the counting circuitry tested by tuming off the power Remove the cable that connects from the high voltage module to the PMT assembly and connect it to the last connector on the Main Electronics Board J22 Tum on the power and enter the command R 0 7 20 0 ws All the counts should be approximately 2280140 counts J22 is a prt simulator and outputs a constant frequency output of 1 megahertz Tum off the power and replace the cable back to the PIVIT assembly Tum on the power to the instrument and then when all the motors have reset exit out of TT by pressing the Home Key

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