The new Lovibond® BOD-OxiDirect sensor system permits exact and convenient measurement of the Biochemical Oxygen Demand (BOD) based on the respirometric principle. All results are shown in a big display directly in mg/l BOD without the need for time-consuming conversion using factors. In addition, the measuring period can be user-selected between 1 and 28 days.

The unit measures BOD levels via the pressure drop in the closed system during a defined period of time. Following measurement, the results are stored and can be called up to the display at any time. The inductive stirrer system not only mixes the sample but also ensures optimum gas exchange between sample and gas space in the sample flask.

Alongside the BOD unit to determine BOD levels, a BOD system contains sample flasks, a non-wearing inductive stirrer system, overflow measuring flask to measure the sample volume, nitrification inhibitor and potassium hydroxide as an absorbent.

Technical Data:
Measuring principle:Respirometric; mercury-free; electronic pressure sensor
Measuring ranges [mg/l O2]:0 - 40, 0 - 80, 0 - 200, 0 - 400, 0 - 800, 0 - 2000, 0 – 4000 mg/l
Applications:BOD5, BOD7, OECD 301 F ...
Result display:BOD [mg/l]; 4 digit; 7-segment LED
Measuring parameter display:BOD, volume, duration, measuring time
Measuring duration:Selectable, between 1 and 28 days
Automatic result memory:Up to 28 results, depending on measuring duration
Storage interval:Hourly to daily, depending on measuring duration
Autostart:on/off switching facility, measure-ment begins after pressure drops, or maximum waiting period
Current result:Can be called up at any time
Power supply:3 alkaline manganese batteries
Battery life:1 year based on normal use as BOD5 measuring unit (max. one reading daily); early warning at end of battery life
Clock:Real-time clock
Protection class (sensor head):IP54
Housing:ABS
Approval certificate:CE