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The BOD meter OxiDirect is a device that is designed to determine the biochemical oxygen demand, called B.O.D. By means of the BOD meter the samples can be taken without further ado, and the BOD values are displayed in real-time speed, precisely in mg/l. Each BOD meter features, depending on the edition, six or twelve sample containers. The handling of the BOD meter is very comfortable and the measurement period is selectable for a period of 1 to 28 days. The amount of oxygen expended for the catabolism of organic substance in water samples is called the biochemical oxygen demand. By measuring the BOD, biodegradable substances in water can be determined as well. Therefore the BOD is an important factor to determine the effect of industrial waste and that from private household on the water quality in sewage treatment plants and their receiving waters. The BOD meter OxiDirect allows an exact and comfortable determination of the BOD, following the respirometric principle. Therefore the amount of oxygen that is already metabolized, can be calculated by recording the pressure reduction inside the sealed BOD meter. Due to the fact that the BOD value of the sample correlates with its pollution by organic substances, and by that the value might vary, the BOD meter is customized for the sample volumes listed below, depending on their measurement range. This  results in a total measurement range of 0 ... 4,000 mg/l. The BOD meter can be applied on sewage, for determining biological activity rates, on clarification plants, analytic laboratories, in research and development.

BOD Oxygen Meter OxiDirect

  • General Technical Specifications of the BOD meter OxiDirect Tintometer
    Measurement principle respirometric, quicksilver-free, electronic pressure sensor
    Measurement ranges (mg/l O2] 0 ... 40, 0 ... 80, 0 ... 200, 0 ... 400, 0 ... 800, 
    0 ...2000, 0 ... 4000
    Accuracy 0.5 % of final value from measurement range at 20°
    Application BOD5, BOD7, OECD 301 F...
    Display BOD [mg/l], 4-digit, 7-segment LED
    Parameters BOD measurement range, volume, period, time of measurement
    Measurement interval  eligible between 1 and 28 days
    Autom. data storage up to 28 measurement values, depending on measurement interval
    Memory interval - hourly (1day)
    - every two hours (2 days)
    - daily (3-28 days)
    Automatic start - after tempering the samples
    - can be turned-off
    Power Supply 3 alkaline batteries
    Battery lifetime 1 year, if common use of BOD5 meter (maximum of one read-out per day), early warning in case the battery is down
    Interface RS232 for printer or computer connection
    Clock Real-time clock
    IP Code IP54
    Diameters 375 x 195 x 230 mm (incl. mixing unit)
    Weight Device with bottles: approx. 3850 g
    Completely incl. mixing unit: approx. 5750 g
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