Metrohm 855 Robotic Titrosampler - Manual (Page 53)

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855 Robotic Titrosampler ￭￭￭￭￭￭￭￭ 45
Assigment Pin No. Assigment Pin No.
Input 7 12 Output 7 2
0 volts / GND 14 Output 8 6
+5 volts 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 of –15 to +15.
The approximate rotational speed can be calculated with the following for-
mula:
Rotational speed/min (r/min) = 125 · stirring rate
Example:
Stirring rate set: 8
Rotational speed in rpm = 125 · 8 = 1000
2000
1500
1000
500
-15 -10 -5 0 5 10 15
r/min
Figure 36 Rotational speed depending on stirring rate