Imbalance Detection; Volume Flow; External Temperature Control - Hermle Sieva-3 Instruction Manual

Filtration centrifuge

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OPERATION

4.6 Imbalance Detection

With fast filling of the basket in the acceleration phase, an imbalance can occur. In this case, the

centrifuge switches off the drive immediately and the basked decelerates to standstill.

The display "time" (A-3) will show the word "error" (M11) and the number "01" appears.

When inside the display "time" (A-3), the word "error" along with the number "02" appear, (see

Figure 23) the cause may be as follows. -> The imbalance switch is defective.

Figure 23

The volume flow of the medium to be analysed may be max. 3.5 l/min. When the flow rate is higher,

the temperature of the drive increases until it is switched off automatically for safety reasons.

The Sieva-3, with the preparation for external temperature equalization, is equipped with a copper

pipe winding around the centrifuge chamber. On the side of the housing there are screw connections

with an internal thread of ¼''. Hence, nipples of various sized can be used.

The tempering liquid may have a max. temperature of 90°C. The liquid may be pumped through the

cooper pipe winding with a max. pressure of 5 bar.

Sieva-3_V1.18_dt

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