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Summary of Contents for Biobase COD-100
- Page 1 COD Analyzer COD-100 User Manual BIOBASE GROUP Version 2020.08...
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Page 2: Preface
Preface Thanks for choosing BIOBASE product! Please read this manual carefully when you first use the COD meter or when you haven’t used it for a long time. It will give you great help in use. User must send the meter to meteorological department for re-inspection after a year. It can be... -
Page 3: Table Of Contents
4.7 After measurement ......................14 5. Maintenance ..........................15 6. Complete set of meter .......................15 7. Appendix ..........................16 Appendix 1 ........................... 16 Appendix 2 ........................... 16 Appendix 3: ..........................16 Appendix 4 ........................... 16 COD-100 COD Analyzer Packing List .................17... -
Page 4: Overview
) method while Japan adopts potassium permanganate method wildly. COD-100 COD Meter is used in laboratory adopting new LED testing technique instead of optical system to measure COD. It is equipped with COD Reactor and can do heating and refluxing for 21 samples. -
Page 5: Specifications
2. Specifications Measuring range Accuracy Repeatability Stability (in 20 minutes) Output The change of COD value is (0~1500)mg/L smaller than 6mg/L Normal working conditions: Environment temperature: (0～40)℃; b. Corresponding humidity: <=85％; Power supply：AC (220±22)V (50±0.5)Hz d. No performance-affected vibrations nearby; No corrosive gases in ambient air;... -
Page 6: Keypad
Keypad The meter has 15 keys. They are ‘Output/1’ key, ‘▼╱2’ key, ‘Pg Dn╱3’ key, ’ ╱4’ key, ’Setup/5’key, ’ ╱6’key, ’View╱7’key, ’▲╱8’ key, ’Pg Up╱9’ key,’Measure╱0’ key, ’ Save╱.’ key, ’Delete╱-‘ key, ’Enter’ key, ‘Cancel’ key and ‘Clear’ key. Apart from ‘Enter’... -
Page 7: Operation
Turn on/off the meter To connect the meter with power line and turn it on; The meter will display ‘COD-100 Meter’. After several seconds, the meter will enter into initial state and user can use it now. After using it, you should switch it off. - Page 8 Press ‘▼╱2’key and ‘▲╱8’ key to move menu item; Press ‘Enter’ key to select corresponding function module; Press ‘Cancel’ key to exit from setting menu. ‘Set System Time’: to modify system time in this module; ‘Set Operator No’: to set operator No in this module;...
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Page 9: View
4.3.2 Set up operator No The meter can set up a No as part of GLP practice. The setting range is 0~200. Press ‘Setup’ key to select ‘Set Operator No’ item in the initial state; Input operator No in an input window popped out. Note: The record data of all measurement and calibration is contained operator No. -
Page 10: Measurement
A. To connect USB line with computer which has data software; B. To run the data software on the computer; C. To click Record/Collect item and the meter will automatically send the stored data to computer. (The detailed operation procedure can be referred to software manual.) ... - Page 11 4.5.1 Preparation before measurement Pretreatment of digestion tube and cell A. Pretreatment of digestion tube Soak the digestion tube and tube cap in Chromium Acid liquid for 24h; Note: The tube cap must be equipped with seal ring and diaphragm Pour the Chromium Acid liquid away after 24 h;...
- Page 12 C. Preparing Chromium Acid liquid: Put 20g K2Cr2O7 to 20ml double-distilled water; Add 400ml Concentrated Sulfuric Acid(1.84g/ml) into it slowly. Note: The Concentrated Sulfuric Acid is strongly corrosive. To avoid anything. Preparing sample and standard solution Take the clean and dry digestion tube out and add 2ml sample in it. ...
- Page 13 Reduce sample amount and add double-distilled water to 2ml. Method 2: The sample can be diluted with double-distilled water until COD concentration is below 1500mg/L. Then take 2ml sample and calculate the result according to dilute multiples. Digesting Digest prepared sample or standard solution with COD Reactor; ...
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Page 14: Zero Calibration
accurate measurement, we recommend you doing full scale and zero calibration before each measurement. Press ‘Cancel’ key to exit from measuring state after measurement. 4.5.3 Calibrating standard solution Calibration includes zero calibration and full scale calibration. Actual LED light source is affected by environment, equipment and heat source, and it may cause drifting phenomenon. -
Page 15: After Measurement
To treat the waste liquid with hydroxide coprecipitation and sulfide coprecipitation; To separate the waste from liquid by filtering method or decantation method; To check if the filtering liquid contains heavy metal. If not, discharge it. After measurement To rinse the digestion tube and tube cap with deionized water after measurement;... -
Page 16: Maintenance
5.6 To rinse the digestion tube and tube cap with deionized water after use; 5.7 To put digestion tube and tube cap in the drying oven at 110℃ 6. Complete set of meter COD-100 COD Meter 1 unit COD-100-1 COD Reactor 1 unit ... -
Page 17: Appendix
7. Appendix Appendix 1 The preparation of COD standard solution(1500mg/L) To weigh up 1.2754g HOOCC COOK which has been dried at 105～110℃ for 2 hours; To dissolve in double-distilled water; To pour it into 1000ml volumetric flask; To dilute it to mark line with double-distilled water. The COD concentration of this solution is 1500mg/L. -
Page 18: Cod-100 Cod Analyzer Packing List
COD-100 COD Analyzer Packing List Product Name and specifications Quantity COD-100 COD Meter 721Cell Universal power line USB Communication Line Operation manual... - Page 19 BIOBASE GROUP 2# building, No.9 Gangxing Road, High-tech Zone, Jinan City, Shandong Province, China Tel: +86-531-81219803/01 Fax: +86-531-81219804 Inquiry: export@biobase.com Complaints: customer_support@biobase.cc After-sales service: service_sd@biobase.cc; service_ivd@biobase.cc Web: www.biobase.cc/www.meihuatrade.com / www.biobase.com...
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