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Hach BODTrak II, User Manual

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DOC022.53.80363

BODTrak II

™

11/2020, Edition 3

User Manual

Summary of Contents for BODTrak II

Page 1: ...DOC022 53 80363 BODTrak II 11 2020 Edition 3 User Manual...

Page 2: ......

Page 3: ...tions 5 3 2 Connect the RS232 interface 6 3 3 Bottle connections 6 Section 4 User interface 6 4 1 Channel selection keys 7 4 2 Arrow keys 7 4 3 ON key 7 4 4 OFF key 7 Section 5 Startup 7 5 1 Turn the...

Page 4: ...10 4 Toxic materials 16 10 5 Chlorine 16 10 6 pH effect 16 10 7 Supersaturation 16 Section 11 Maintenance 17 11 1 Cleaning 17 11 2 Storage 17 Section 12 Troubleshooting 17 12 1 Incorrect BOD curves 17...

Page 5: ...rd 150 mg L each of glucose and glutamic acid Number of samples 44 Number of analysts 1 Number of BodTrak II instruments 6 Results Mean of 235 mg L BOD Distribution 11 mg L or range of 224 to 246 mg L...

Page 6: ...references the instruction manual for operation and or safety information Electrical equipment marked with this symbol may not be disposed of in European domestic or public disposal systems Return ol...

Page 7: ...es is monitored Bacteria in the sample use oxygen when they consume organic matter This oxygen consumption causes the pressure in the bottle head space to drop The pressure drop correlates directly to...

Page 8: ...s if the device cannot continuously receive at 9600 baud Note The use of the specified cable or an equivalent shielded cable is necessary to meet radio frequency emissions requirements 3 3 Bottle conn...

Page 9: ...test length and range 4 3 ON key To go to the range selection menu push ON from a channel display screen Then push and hold ON to start the test for the selected channel 4 4 OFF key When a test is in...

Page 10: ...zard select Delimited as the file type the start row in the spreadsheet and Windows ANSI as the file origin Click NEXT 4 Click the check boxes for Space delimiter and Treat consecutive delimiters as o...

Page 11: ...propriate to the chemicals that are handled Refer to the current safety data sheets MSDS SDS for safety protocols C A U T I O N Chemical exposure hazard Dispose of chemicals and wastes in accordance w...

Page 12: ...level the 0 to 35 mg L BOD range is decreased to 0 to 25 mg L BOD Adjustment is not necessary for other test ranges Refer to Special considerations on page 15 for special considerations including samp...

Page 13: ...e size If samples are seeded prepare a seed blank before a sample is prepared Treat the seed blank the same as any other sample and omit step 5 Use Hach BOD Standard Solution Ampules for Manometric Me...

Page 14: ...eded use a tensette pipet to add the correct quantity of seed to the graduated cylinder Table 5 6 If necessary add more nutrient or buffer Do not add more than a total volume of 50 mL seed nutrient bu...

Page 15: ...s are rotating If not lift the bottle up then set it down again 7 Push and hold the LEFT and RIGHT arrows at the same time to go to the instrument setup menu Note Set the time and date if necessary Se...

Page 16: ...s and the seed blank bottle and GGA bottle when applicable The results are shown Note Treat the seed blank the same as all other samples If the sample was pre diluted apply a dilution factor to the in...

Page 17: ...r to the expanded version of the manual for information about specific procedures Figure 3 shows typical curves through a 10 day test period For incorrect curves refer to Figure 4 on page 18 Figure 3...

Page 18: ...4 Toxic materials Industrial and chlorinated samples often contain toxic substances and require special considerations when running BOD tests Toxic materials in the sample will cause decreased BOD va...

Page 19: ...onized or distilled water Clean the sample bottles Clean the sample bottles and caps with a brush water and a mild detergent Flush the sample bottles with fresh water followed by a distilled water rin...

Page 20: ...fluent is in the 0 70 mg L range while influent is in the 0 700 mg L range when the BOD of the sample is more than 700 mg L prepare a sample dilution Refer to the Sample dilution section in the expand...

Page 21: ...leak makes the system unresponsive If such a condition occurs examine the seal cup and bottle cap for contamination or damage Section 13 Replacement parts and accessories 13 1 Replacement parts Descr...

Page 22: ...size 2 1 68700 Buret straight stopcock 25 mL 1 1405940 Clamp buret double 1 32800 Cylinder graduated 10 mL 1 50838 Cylinder graduated 25 mL 1 50840 Cylinder graduated 50 mL 1 50841 Cylinder graduated...

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Page 24: ...h com www hach com HACH LANGE GMBH Willst tterstra e 11 D 40549 D sseldorf Germany Tel 49 0 2 11 52 88 320 Fax 49 0 2 11 52 88 210 info de hach com www de hach com HACH LANGE S rl 6 route de Compois 1...

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