6.4 Stirring rate
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
50
￭￭￭￭￭￭￭￭
855 Robotic Titrosampler
Assignment Pin no. Assignment Pin no.
Input 6 24 Output 6 1
Input 7 12 Output 7 2
0 volts / GND 14 Output 8 6
+5 volt 15 Output 9 7
0 volts / GND 25 Output 10 8
Output 11 13
Output 12 19
Output 13 20
6.4 Stirring rate
The stirring rate can be adjusted in steps from –15 to +15.
The approximate rotational speed for the internal magnetic stirrer
(depends on the product version) can be calculated with the following for-
mula:
Rotational speed/min (r/min) = 125 · Stirring rate
Example:
Configured stirring rate: 8
Rotational speed in revolutions per minutes = 125 · 8 = 1,000
2000
1500
1000
500
-15 -10 -5 0 5 10 15
r/min
Figure 35
Rotational speed depending on the stirring rate
The information on the separately connectable 802 propeller stirrer can be
found in the "802 Stirrer" manual.
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