YSI 95 - Manual (Page 3)

i
CONTENTS CONTENTS CONTENTS CONTENTS
SECTION 1 INTRODUCTION .........................................................................................................................................1
SECTION 2 PREPARING THE METER ........................................................................................................................2
2.1 U NPACKING .................................................................................................................................................................2
2.2 W ARRANTY C ARD ......................................................................................................................................................2
2.3 B ATTERIES ..................................................................................................................................................................2
2.4 C ALIBRATION /S TORAGE C HAMBER ............................................................................................................................3
2.5 H AND S TRAP ...............................................................................................................................................................3
2.6 T HE M ETER C ASE .......................................................................................................................................................3
SECTION 3 PREPARING THE PROBE .........................................................................................................................4
3.1 C HOOSING THE R IGHT M EMBRANE C AP .....................................................................................................................4
3.2 M EMBRANE C AP I NSTALLATION .................................................................................................................................4
SECTION 4 OPERATION .................................................................................................................................................6
4.1 T URNING T HE I NSTRUMENT O N .................................................................................................................................7
4.2 C ALIBRATION ..............................................................................................................................................................7
4.3 M AKING M EASUREMENTS ..........................................................................................................................................8
4.4 S TIRRING .....................................................................................................................................................................9
4.5 S AVING D ATA ..............................................................................................................................................................9
4.6 R ECALLING S TORED D ATA ..........................................................................................................................................9
4.7 E RASING S TORED D ATA ............................................................................................................................................10
4.8 T OGGLING BETWEEN %- AIR S ATURATION AND MG /L...............................................................................................11
4.9 D ISSOLVED O XYGEN F ILTER .....................................................................................................................................11
4.10 D ISPLAY B ACKLIGHT ..............................................................................................................................................11
SECTION 5 PRINCIPLES OF OPERATION .............................................................................................................12
5.1 MEA C LARK O XYGEN S ENSOR ................................................................................................................................12
5.2 DO R EADINGS FROM THE C ATHODE R EDUCTION .....................................................................................................13
5.3 F ORMATION OF A G C L AT THE A NODE ......................................................................................................................13
5.4 F UNCTION OF THE E LECTROLYTE .............................................................................................................................13
SECTION 6 MAINTENANCE OF THE MEA SENSOR...........................................................................................14
6.1 A NODE S ERVICE ........................................................................................................................................................14
6.2 C ATHODE S ERVICE ....................................................................................................................................................14
6.3 D ISSOLVED O XYGEN P ROBE P RECAUTIONS .............................................................................................................15
6.4 P ROBE S TORAGE .......................................................................................................................................................15
SECTION 7 DISCUSSION OF MEASUREMENT ERRORS...................................................................................16
SECTION 8 TROUBLESHOOTING............................................................................................................................17
SECTION 9 WARRANTY AND REPAIR ...................................................................................................................19
APPENDIX A - GENERAL SPECIFICATIONS ..........................................................................................................24
APPENDIX B - REQUIRED NOTICE ...........................................................................................................................26
APPENDIX C - ACCESSORIES AND REPLACEMENT PARTS ............................................................................27
APPENDIX D - UNIT CONVERSION ...........................................................................................................................28
APPENDIX E - OXYGEN SOLUBILITY TABLE .......................................................................................................29
APPENDIX F - CALIBRATION VALUES TABLE .....................................................................................................31