The "Stop" Key; Imbalance Detection - Hermle Z 287 A Operating Manual

2.7.2 The "STOP" KEY

With the "stop" key (10), the run time can be interrupted, at any time, (see Figure 22). After pressing
the key, the centrifuge decelerates with the respective pre-selected intensity, down to a standstill.
After the centrifugation is finished, the LED lights with green color.
Figure 22

2.8 Imbalance Detection

In case the rotor is not equally loaded, the drive will turn off, during acceleration. The rotor decelerates
to a standstill.
When in the display "time" (A-3), the word "error" (M11) along with the number "01" appears, the
weight difference of the samples are too large. Weigh out the samples exactly!
Load the rotor as described in Chapters: 2.1.2 and 2.1.3.
When inside the display "time" (A-3), the word "error" along with the number "02" appears, (see Figure
23). Potential reason for this error can be: The imbalance switch is defective. If an error code occurs,
the LED is flashing rapidly with red color.
Figure 23
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Z287A_V1.19
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OPERATING
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