BREWER MKII Spectrophotometer Operator's Manual BREWER MKIV SPECTROPHOTOMETER OPERATOR'S MANUAL OM-BA-C231 REV B, August 15, 1999 SCI-TEC Instruments Inc. 1503 Fletcher Road Saskatoon, Sask. , Canada S7M 5S5 Phone 306-934-0101 Fax 306-978-2339 Email: [email protected] Web site: www.sci-tec.com BREWER MKII Spectrophotometer Operator's Manual This Page is Intentionally left Blank TABLE OF CONTENTS 1 SYSTEM OVERVIEW..................................................................................................................................1 2 SYSTEM DESCRIPTION .............................................................................................................................3 2.1 SPECTROPHOTOMETER ......................................................................................................................4 2.2 SOLAR TRACKING..............................................................................................................................16 2.3 COMPUTER EQUIPMENT ...................................................................................................................17 3 BREWER SYSTEM SETUP........................................................................................................................19 3.1 SPECTROPHOTOMETER UNPACKING AND SETUP........................................................................21 3.2 TRIPOD UNPACKING AND SETUP ....................................................................................................21 3.3 AZIMUTH TRACKER UNPACKING AND SETUP..............................................................................21 3.4 MOUNTING THE BREWER.................................................................................................................22 3.5 BREWER OPERATING SOFTWARE....................................................................................................23 3.6 COMPUTER SETUP .............................................................................................................................24 3.7 BREWER / COMPUTER INTEGRATION.............................................................................................25 3.8 MAIN MENU COMPUTER DISPLAY ..................................................................................................27 3.9 INITIAL TESTS ....................................................................................................................................27 3.10 FINAL INSTALLATION.......................................................................................................................28 4 BREWER COMMANDS .............................................................................................................................31 4.1 RESERVED KEYS: HOME, DEL, CTRL+BREAK, ...................................................................................31 4.2 BREWER COMMAND SUMMARY .....................................................................................................32 5 ROUTINE OPERATIONS AND MINOR MAINTENANCE....................................................................49 5.1 DAILY TASKS......................................................................................................................................49 5.2 WEEKLY TASKS .................................................................................................................................53 5.3 INFREQUENT TASKS..........................................................................................................................53 5.4 MINOR MAINTENANCE .....................................................................................................................53 6 UV STABILITY CHECK - QS...................................................................................................................57 7 SOLAR AND LUNAR SITING - SI, SIM ...................................................................................................61 8 BREWER SCHEDULES - SE, SKC, SK.....................................................................................................63 9 APPENDIX A BREWER DATA FILES................................................................................................65 9.1 AVERAGE FILES: ???AVG.NNN AND OZOAVGYY.NNN..........................................................................65 9.2 B FILES: BJJJYY.NNN .............................................................................................................................71 9.3 CZ FILES: CZJJJYY.NNN ........................................................................................................................75 9.4 D FILES: DJJJYY.NNN.............................................................................................................................75 9.5 DUVJJJYY.NNN: DAILY DUV FILE.........................................................................................................75 9.6 DUVJJJYY.NNN: PRODUCED FROM UV SCANS BY AB_UVDAT.EXE) ....................................................75 9.7 LAMP_LLL.NNN - LAMP FILE...............................................................................................................76 9.8 PUX, PUF, PUV, PUA: PROCESSED UV FILES ........................................................................................76 9.9 PXL: PROCESSED LAMP FILES..................................................................................................................76 9.10 S FILES: SJJJYY.NNN..............................................................................................................................76 9.11 UMKEHR FILES: UJJJYY.NNN..................................................................................................................76 9.12 UV FILES UVJJJYY.NNN ........................................................................................................................77 9.13 UVBJJJYY.NNN - PRODUCED FROM UV SCANS BY AB_UVDAT.EXE.....................................................77 9.14 XLJJJYY.NNN - EXTENDED LAMP SCAN ................................................................................................77 9.15 A/D VALUES: .........................................................................................................................................79 10 APPENDIX B CONFIGURATION FILES.........................................................................................81 10.1 DCFJJJ.NNN - DISPERSION CONSTANTS..................................................................................................81 10.2 ICFJJJYY.NNN - INSTRUMENT CONSTANTS............................................................................................82 10.3 LAMPLLL.IRX - LAMP IRRADIANCE FILE ............................................................................................83 ii 10.4 OP_ST.NNN - OPERATING STATE FILE .....................................................................................................83 10.5 UMKSETUP.NNN - UMKEHR SETUP FILE ...............................................................................................84 10.6 UVRJJJYY.NNN .....................................................................................................................................84 10.7 ZSFJJJYY.NNN (ZSFVAL)- ZENITH SKY CONSTANTS ...........................................................................84 10.8 PO VALUES: ...........................................................................................................................................85 11 APPENDIX C UV PROCESSING ...........................................................................................................87 11.1 LAMP DATA ANALYSIS......................................................................................................................87 11.2 UV DATA ANALYSIS PROGRAMS .....................................................................................................89 12 APPENDIX D NOBREWER................................................................................................................91 13 APPENDIX E UMKEHR PROCESSING ..........................................................................................92 14 APPENDIX F FACTORY TESTS ......................................................................................................95 14.1 SETUP AND CALIBRATION TESTS..............................................................................................................95 15 APPENDIX G PRELIMINARY DATA REDUCTION....................................................................111 15.1 CONVERTING RAW COUNTS TO LIGHT INTENSITY...................................................................................111 15.2 CONVERTING RAW DATA TO COUNT RATES...........................................................................................111 15.3 COMPENSATING FOR DEADTIME.............................................................................................................112 15.4 COMPENSATING FOR TEMPERATURE ......................................................................................................112 15.5 COMPENSATING FOR RAYLEIGH SCATTERING (DS ONLY)........................................................................112 15.6 COMPUTING SINGLE AND DOUBLE RATIOS .............................................................................................113 15.7 DETERMINING O3 AND SO2 FROM DIRECT-SUN DATA .............................................................................113