Hach BODTrak II User Manual
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Hach BODTrak II User Manual

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DOC022.53.80363
™
BODTrak II
11/2020, Edition 3
User Manual

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Summary of Contents for Hach BODTrak II

  • Page 1 DOC022.53.80363 ™ BODTrak II 11/2020, Edition 3 User Manual...

  • Page 3: Table Of Contents

    6.2 Import data ....................................8 6.3 Data format ....................................8 6.4 Print test results ..................................9 ™ Section 7 BODTrak II procedures ..........................9 7.1 Procedure notes ..................................9 7.2 Simplified procedure ................................. 10 7.3 Hach Standard Method procedure ............................11...
  • Page 4 7.4 Completion steps for all procedures ............................12 Section 8 Determination of results ..........................14 8.1 Simplified sample results ................................14 8.2 Hach Standard Method results ..............................14 Section 9 Typical curves ............................... 15 Section 10 Special considerations ..........................15 10.1 Sample dilution ..................................

  • Page 5: Section 1 Specifications

    5 to 40 ºC (41 to 104 ºF) • Number of samples: 44 temperature • Number of analysts: 1 Altitude limit 2000 m (6500 ft) • Number of BodTrak II instruments: 6 Pollution degree Results: Installation • Mean of 235 mg/L BOD category •...

  • Page 6: Use Of Hazard Information

    appropriate mechanisms to protect processes during a possible This symbol, if noted on the instrument, references the equipment malfunction. instruction manual for operation and/or safety information. Please read this entire manual before unpacking, setting up or operating this equipment. Pay attention to all danger and caution statements. Failure to do so could result in serious injury to the operator or damage Electrical equipment marked with this symbol may not be to the equipment.

  • Page 7: Product Overview

    • Power supply, auto-switching between 115 V and 230 V 5. Try combinations of the above. • Seal cups (6x) • BODTrak II amber sample bottles (6x) 2.2 Product overview • BODTrak II magnetic stir bars (6x) • Spatula scoop...

  • Page 8: Connect The Rs232 Interface

    stop bit. The computer or printer will not receive complete transmissions Figure 1 External connections 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 connections Each bottle position/channel has the applicable tube numbered with a plastic sleeve.

  • Page 9: Channel Selection Keys

    4.1 Channel selection keys 4.4 OFF key Push the related channel selection key to show data for one of the six When a test is in DELAY or RUN modes, push and hold OFF to bottles. The channel selection keys are also used in the instrument setup manually end the test.

  • Page 10: Section 6 Standard Operation

    The spreadsheet data cannot be edited or formatted in 2. In the Connection Description window, type in a name for the HyperTerminal or with the BODTrak II. connection and select an icon to represent the connection. Click OK. 3. In the Connect To window, use the drop-down menu to select the 6.3 Data format...

  • Page 11: Print Test Results

    There are two procedure variations. Select the procedure that meets the application requirements. The BODTrak II is applicable to use with the Citizen PD-24 printer. • The Simplified procedure is recommended when sample seeding, 1. Connect the printer cable to the serial I/O port on the instrument. Use extra nutrients or buffers are not necessary.

  • Page 12: Simplified Procedure

    3. Select the correct sample to 19 to sample in a blender sample volume for Use only BODTrak II stir bars and bottles. These items are made 21 ºC. if it contains large the BOD range specifically to be used with the BODTrak II.

  • Page 13: Hach Standard Method Procedure

    Treat the seed blank the same as any other sample and graduated cylinder. a BODTrak II bottle. omit step 5. Continue to Use Hach BOD Standard Solution Ampules for Manometric Method Completion steps for (3000 mg/L Glucose, 3000 mg/L Glutamic Acid) for GGA. all procedures on page 12. Repeat...

  • Page 14: Completion Steps For All Procedures

    19 to sample in a blender GGA or sample water bottle BODTrak II bottle. 21 ºC (66 to 70 ºF). if it contains large volume for the BOD (Table Continue to settleable or...
  • Page 15 7). channels. 4. Put the bottles on 5. Put the 6. Plug in and the BODTrak II instrument in the power on the 10. To start the test, 11. Push ON. The 12. Use the arrows chassis.

  • Page 16: Section 8 Determination Of Results

    • B = 120 mg/L BOD 8.1 Simplified sample results • SA = 20 mL The simplified procedure results are shown on the BODTrak II display. • SB = 110 mL Push the applicable channel selection key to show the results.

  • Page 17: Section 9 Typical Curves

    • B = corrected BOD of the seed blank Figure 3 Typical curves • SA = volume of seed in seeded GGA • SC = final volume of seeded GGA (160 mL) Example: • C = 250 mg/L BOD • B = 120 mg/L BOD •...

  • Page 18: Sample Seeding

    0 to 700 mg/L range of the remove the chlorine. selected procedure. Multiply the instrument reading result by 2. If the Hach Standard Method procedure is used, continue with the rest of the 1. In a 250-mL Erlenmeyer flask, add 100 mL of sample. calculations.

  • Page 19: Section 11 Maintenance

    1. Heat or cool the sample to approximately 20 ºC. 11.2 Storage 2. Half fill a sample bottle with sample. The bottle fences prevent tipping of the bottles and provide tubing 3. Shake for 2 minutes or aerate with filtered compressed air for management in storage.

  • Page 20: High Oxygen Demand

    20 ºC or supersaturated Hach Nitrification Inhibitor. Dispense the inhibitor powder into an empty with oxygen sample bottle and then add the sample. With the Hach Dispenser cap, 2 Nitrification 5 Bottle leak dispense 6 shots (approximately 0.48 grams) into the empty bottle. Refer Optional reagents on page 19.

  • Page 21: Excessive Time Lag

    Bacteria acclimation also causes conditions that can cause curve 3. This sometimes occurs with standards and added seed. Add more seed or Spatula scoop 1225700 select a different seed source. Stir bar, magnetic, BODTrak II 2959400 12.5 Sample temperature 13.2 Required reagents Refer to Figure 4 on page 18.

  • Page 22: Accessories

    13.3 Optional reagents (continued) 13.4 Accessories (continued) Item Description Quantity Item no. Description Quantity number Starch indicator solution, dropping Cylinder, graduated, 250-mL 50846 1000 mL MDB 34932 bottle Cylinder, graduated, 500-mL 50849 Sulfuric acid, ACS 500 mL 97949 Cylinder, graduated, 1000-mL 50853 Sulfuric acid, 0.02 N standard 1000 mL...
  • Page 24 Tel. +49 (0) 2 11 52 88-320 SWITZERLAND Fax (970) 669-2932 Fax +49 (0) 2 11 52 88-210 Tel. +41 22 594 6400 orders@hach.com info-de@hach.com Fax +41 22 594 6499 www.hach.com www.de.hach.com © Hach Company/Hach Lange GmbH, 2013, 2019–2020. All rights reserved. *DOC022.53.80363*...

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