Hach BODTrak II Manometric BOD Apparatus 2952400 HACH BOD TRAK II

BODTrak II Apparatus includes power cords, auto-switching power supply, six bottles, six magnetic stir bars, six seal cups, spatula scoop, BOD Nutrient Buffer Pillows, and potassium hydroxide pellets. Specifications Capacity: Six 492 mL bottles Dimensions: Depth: (10.3 in.) Dimensions: Height: 9.8 cm (3.9 in.) Dimensions: Width: (11.4 in.) Drift: lt; 3 mg/L BOD in 5 days Footnote: *The BODTrak II method is not approved by the USEPA for NPDES reporting purposes. Input Voltage: 110 - 240 V, 50/60 Hz Interface: RS232 Output Voltage: 24V, UL CSA, and TUV approved Range: 0 - 700 mg/L Selectable: 0 - 35, 0 - 70, 0 - 350, or 0 - 700 mg/L BOD (Biochemical Oxygen Demand) The BODTrak II Apparatus measures BOD using the respirometric method. Each sample bottle is connected to a pressure sensor in a closed system. As bacteria consume oxygen in the sample, the pressure in the bottle headspace drops. This pressure change correlates directly to BOD. By measuring pressure changes instead of dissolved oxygen levels, the need for probes and titrations is eliminated. he Hach BODTrak II Apparatus is easy to set up and allows for quick sample preparation for BOD (Biochemical Oxygen Demand) analysis. Simply pour a measured sample of wastewater and nutrient buffer into each of six BODTrak II bottles. Connect the bottles to the instrument #39;s pressure sensors, select a measurement range, and incubate. User calibration of the instrument is not necessary. Faster than Dilution Method Constant stirring in the bottles supplies additional oxygen to the sample and provides bacteria with greater exposure to food. This results in more rapid respiration and consumption of oxygen.