Hach BOD System Mode D'emploi page 30

GB
7 Inductive stirring system
Figure 22, stirrer drive, mains adapter, Y-cable
7.1 Device description and functional description
The inductive stirring system is designed for the stirring of liquids in special BOD bottles. It comprises
a super-fl ate stirrer drive with 6 stirring positions and the mains adapter. The inductive stirrer drive
does not have a motor and is thus wear-free. It is especially well-suited for stirring during continuous
operation in thermocabinets. It is completely protected from dripping water due to its hermetically
sealed encapsulation. It can be used in harsh environmental conditions.
The wide recess between the stirring positions also ensures greater ventilation of the containers in
the thermocabinet. The stirrer drive is supplied with power via the mains adapter and has integrated
control electronics. When switched on, a soft-start at reduced speed assures an even start-up and
centring of the magnetic stir bars.
The electronically controlled automatic monitoring unit reduces the speed about every 40 seconds. In
the process, each magnetic stir bar is re-centred in the bottle for a few seconds. Therefore, you can
easily exchange individual bottles while the unit is switched on.
Due to the synchronous operation, mutual interference of the magnetic stir bars can be practically
ruled out altogether.
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1 Mains adapter
2 DC connection cable
3 Stirrer drive
4 Stirring position
5 Y-cable
BOD Direct plus_BMU_2 03/2016