BOD Measurement System, Lovibond, Germany ( Model : BOD OxiDirect -2444406)

Specifications : The Lovibond® OxiDirect is a Manometric, respirometric BOD measurement system Manometric respirometers relate oxygen uptake to the change in pressure caused by oxygen consumption while maintaining a constant volume. The unit is a 6 sample system that allows precise measurements of BOD from 1 to 28 days Data is stored in the individual sensor heads, so it is possible to remove and reposition the bottles without losing vital data. By using different volumes of sample, the OxiDirect is capable of measuring from 0 to 4000 mg/ l without the need to dilute the sample. An inductive stirring unit is also supplied to provide constant mixing of the sample over the analysis period. Package include : Lovibond® OxiDirect unit 6 x sensor heads 3 x batteries, alkaline-manganese, type C Inductive stirring unit with power supply 6 x Sample bottles 6 x Rubber gaskets 6 x Magnetic stirring rods Overflow flask, 157ml Overflow flask, 428ml 1 x bottle, 50ml potassium hydoxide solution 1 x bottle, 50ml nitrification inhibitor solution Instruction manual Specifications : Measurement principle : Manometric; mercury-free; electronic pressure sensor " Result display : BOD [ mg/ l] ; 4 - digits; 7 - segment LED" Range : 0-40, 0-80, 0-200, 0-400, 0-800, 0-2000, 0-4000 mg/ L O2 Accuracy : 0.5% full scale at 20° C Measurement parameter display : BOD-range, volume, duration, time of measurement Measurement period : User-selectable, between 1 and 28 days Auto result storage : Up to 28 results, depending on measurement period Storage interval : - hourly ( 1 day) ; - every 2 hours ( 2 days) ; - daily ( 3-28 days) Automatic start function : After temperature equalisation of samples; - Can be switched off Power supply : 3 alkaline-manganese batteries ( " Baby" cells/ size " C" ) Battery life : 1 year ( normal use as BOD5 meter - max. one reading a day) ; early warning before battery fails Interface : RS 232 for printer or PC connection Clock : Real Time Clock Dimensions : 375 x 195 x 230 mm ( L x W x H) including stirring unit Weight : 3850 g, unit with bottles 5750 g, complete with stirring unit