Oxitop model WTW

BOD Self-check Measurement

OxiTop® and OxiTop® Control OxiTop® IS 6, IS 12 
5-day automatic storage of measured values

Complete packages for 6 or 12 simultaneous measurements
Measurement using OxiTop® is based on pressure measurement in a closed system: 
microorganisms in the sample consume the oxygen and form CO2; 
the CO2 is absorbed by NaOH, creating a vacuum that can be measured as a mg/l BOD value. 
The sample volume used regulates the amount of oxygen available for a complete BOD. 
Measurement ranges of up to 4,000 mg/l can be measured using different volumes. 
The OxiTop® heads (green and yellow for inflow/outflow differentiation) have an AutoTemp function: 
if the sample temperature is too cold, the start of measurement is automatically delayed by at least 1 hour 
until a constant temperature has been reached. Apart from the automatic storage of 5 measured values (1 value per day), 
further measured values can be read at all times during or after the period of 5 days, 
which permits the tracking of check values or measurements over longer periods.
BOD Self-check Measurement for a larger number of samples

Simultaneous measurement of up to 100 samples
Statistical evaluation
Automatic sample ID

Complete package for 6 or 12 simultaneous measurements 
OxiTop® Control system uses software-controlled functions 
and infrared interface to communicate with the powerful OC 100 controller. 
This connection enables the simultaneous, group start, management, storage and tracking of 100 measuring heads, 
and tracks results on a large graphic display. 
Data can be transferred to the PC for evaluation and documentation via the AK-540/B cable (order no. 902 842) 
and the communication program Achat OC (order no. 208 990). 
The OC 110 controller, in combination with the OxiTop® Control S6 / S12, is ideal when other applications in addition to BOD are required.
Controller OC 100/OC 110
Simultaneous sample management with option of grouping up to 100 OxiTop®-C measuring heads.
Data call-up of one parallel sample with statistical evaluation and as individual data.
Automatic calculation and graphical display of BOD value.
Data transfer even through glass doors.
Protocol and documentation of data via Achat OC communication program in combination with a PC
GLP and AQS with inspection intervals for calibration with the OxiTop® PM calibration tablets