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BOD Measurement System OxiDirect
Source URL: http://www.web4water.com/products/view_entry.asp?id=4176
The OxiDirect from Lovibond Tintometer provides accurate and direct display of BOD (Biochemical Oxygen Demand) values in mg/l for a user selectable measuring period from 1 to 28 days. The easy-to-handle, Mercury-free, environmentally-friendly instrument is being used internationally to determine the effects of domestic and industrial waste water on sewage plants and outflow points. The Lovibond sensor system OxiDirect is a 6 sample system that allows precise measurements of BOD based on the manometric principle. Manometric respirometers relate oxygen update to the change in pressure caused by oxygen consumption while maintaining a constant volume. Thanks to the modern integral pressure sensors, it is no longer necessary to use mercury for pressure measurements.
Measuring ranges and sample volumes
The BOD level of a sample depends on the quantity of organic matter present, which can vary considerably. The Lovibond® BOD measuring system OxiDirect is therefore calibrated for the various sample volumes and the corresponding measuring ranges listed in the table below. The overall measuring range of the system is 0 – 4000 mg/l.
For all measuring ranges, BOD is shown directly in mg/l.
Features
Direct sample selection
Accurate and direct display of BOD values in mg/l
User-friendly handling
User-selectable measuring period from 1 to 28 days (BOD5, BOD7, OECD…)
Automatic storage of BOD values
Measuring ranges from 0-40 mg/l to 0-4000 mg/l BOD / sample volume related
Automatic start function following temperature equalisation of the samples
Mercury-free, environmentally-friendly BOD determination
Inductive stirring system with automatic re-centering of stirring rods
Interface RS 232
Complete Measurement System
In addition to the BOD unit for measurement and storage of BOD levels, the Lovibond® OxiDirect BOD measuring system includes sample bottles, measuring sensors, non-wearing inductive stirring system, overflow measuring flasks for metering of sample volumes, nitrification inhibitor and potassium hydroxide as an absorbent.
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Lovibond/Tintometer
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