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110
You can control the metering rate with the black key of the manual controller (Fig. 41).
a) A single depression of the key will cause a step up to the first level. Depending on the size of the
interchangeable unit, this corresponds to 0.0003 ml (WA 05), 0. 0005 ml (WA 10), 0. 001 ml (WA 20)
and 0.0025 ml (WA 50). The increment step can be set.
b) If one keeps the black key depressed on the first level, titration will be continued at a low rate.
c) If you press the black key fully down (2
The rate of the second level can be set in five stages using the <↓↑> arrow keys.
These stages can also be changed during manual titration (Fig. 42).
Fig. 42
Stage 5 corresponds to maximum titration speed. Speed is reduced by 50% each time.
Example:
WA 20 interchangeable unit
Stage 5
100 %
Stage 4
50 %
Stage 3
25 %
Stage 2
12.5 %
Stage 1
6.8 %
Even if the titration is completed, press <STOP> or approx. for 1 sec. the grey key of the manual controller.
The titration result will be calculated and displayed (Fig. 43).
Fig. 43
<ESC> will take you back to the start menu way to start the next titration immediately.
Filling of the interchangeable unit occurs automatically.
nd
level) titration will proceed at a higher rate.
40 ml/min
20 ml/min
10 ml/min
5 ml/min
2.5 ml/min
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