Contents 
III 
5.1  Preparation .......................................................................................................... 5-1 
5.2  Daily Maintenance ............................................................................................... 5-2 
5.2.1  Checking Remaining Deionized Water................................................. 5-2 
5.2.2  Emptying Waste Tank........................................................................... 5-3 
5.2.3  Checking Connection of Deionized Water............................................5-3 
5.2.4  Checking Connection of Wastewater ................................................... 5-4 
5.2.5  Checking Syringe ................................................................................. 5-5 
5.2.6  Checking Probe.................................................................................... 5-6 
5.2.7  Checking Mixing Bar ............................................................................ 5-7 
5.3  Weekly Maintenance ........................................................................................... 5-7 
5.3.1  Cleaning Probe..................................................................................... 5-7 
5.3.2  Cleaning Mixing Bar ............................................................................. 5-8 
5.3.3  Washing Deionized Water Tank ...........................................................5-9 
5.3.4  Washing Waste Tank ..........................................................................5-10 
5.3.5  Cleaning Sample/Reagent Compartment .......................................... 5-11 
5.3.6  Cleaning Panel of Analyzing Unit ....................................................... 5-11 
5.4  Monthly Maintenance ........................................................................................ 5-12 
5.4.1  Cleaning Wash Well of Probe.............................................................5-12 
5.4.2  Cleaning Wash Well of Mixing Bar .....................................................5-12 
5.5  Maintenance Every Six Months .........................................................................5-12 
5.6  Irregular Maintenance........................................................................................ 5-13 
5.6.1  Unclogging Probe...............................................................................5-13 
5.6.2  Replacing Probe.................................................................................5-16 
5.6.3  Replacing Mixing Bar .........................................................................5-17 
5.6.4  Replacing Plunger Assembly of Syringe ............................................ 5-18 
5.6.5  Replacing Lamp .................................................................................5-20 
5.7  Maintenance Log ...............................................................................................5-22 
6  Troubleshooting................................................................................................................6-1 
7  Calculation Methods......................................................................................................... 7-1 
7.1  Analytical Methods ..............................................................................................7-1 
7.1.1  Endpoint ............................................................................................... 7-1 
7.1.2  Fixed-Time............................................................................................7-2 
7.1.3  Kinetic................................................................................................... 7-3 
7.2  Calculation Process............................................................................................. 7-5 
7.2.1  Absorbance .......................................................................................... 7-5 
7.2.2  Response ............................................................................................. 7-6 
7.2.3  Calibration Parameters......................................................................... 7-9 
7.2.4  Concentration ..................................................................................... 7-12 
7.2.5  QC rules ............................................................................................. 7-14 
Appendix A  Specifications............................................................................................ A-1 
A.1  Technical Specifications.......................................................................................A-1 
A.2  Power Requirements ...........................................................................................A-1 
A.3  Environmental Requirements ..............................................................................A-2 
A.3.1  Storage Requirements..........................................................................A-2 
A.3.2  Operation Requirements ......................................................................A-2 
A.4  Dimension and Weight ........................................................................................A-2 
A.5  Other Specifications.............................................................................................A-2 
A.6  Input/Output Devices ...........................................................................................A-2 
A.7  Interface...............................................................................................................A-3 
Appendix B  Supplies ..................................................................................................... B-1 
Appendix C  Index........................................................................................................... C-1