WTW - a xylem brand

- Respirometric BOD secure, easy, convenient


Respirometric OxiTop measuring system for BOD self check measurement with undiluted samples – measuring ranges up to 4,000 mg/l BOD possible.

  • No need to convert data – direct input of sample volume
  • Most reliable results - display of the curve at the head
  • Full information - interim values always available

The OxiTop®-i continues the success story of the OxiTop® system with a great new user interface and direct reading of the BOD from the graphic display.

The BOD measurement with OxiTop® is based on pressure measurement in a closed system: The micro-organisms in the sample consume the oxygen and generate CO2 in the process. This is absorbed with NaOH. This will cause a vacuum pressure, which can be determined as a measured value in mg/l BOD.

The sample volume used regulates how much oxygen is available in order for full BOD to run. With different volumes, measuring ranges up to 4,000 mg/l BOD can be measured.

The new menu controlled OxiTop®-I heads allow the input of the sample volume for direct BOD calculation. Besides the colored head in grey and blue which clearly define the difference between inlet and outlet samples the assignment of individual ID numbers give an additional possibility of identification.
New is also that the measured period can be set between 1 and 7 days. For easy monitoring the curve of the measured data can be reviewed at the display. Interim values can be called up at any time. The AutoTemp function makes sure that the samples with a starting temperature in a range between 15 ° and 21 °C are correctly measured.

A small flashing LED is signalizing the current status of the sample and indicates also when the measurement is ready. 

The OxiTop-i IS 6 and 12 are ready for use including stirring platforms, heads, and accessories, as we will always supply you with product sets including accessories.

Technical Data

  • Measuring range: 0 ... 40 / 80 / 200 / 400 / 800 / 2000 / 4000 mg/l BOD
  • Sample volume 22.7 ml, 43.5 ml, 97 ml, 164 ml, 250 ml, 365 ml, 432 ml
  • Units mg/l, hPa, ΔhPa, digits
  • Graphic LCD with power off
  • LED (RGB)
  • Battery: 1 x CR 2450

Customer reviews

No reviews were found for OxiTop®-i - Respirometric BOD secure, easy, convenient. Be the first to review!