Pre-Selection; Pre-Selection Of Speed / Rcf-Value - Hermle Z 446 K User Manual

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OPERATION

2.3 Pre-Selection

Selecting the key, "rpm/rcf" (4), pre-selection is activated. By pressing the key once, the word "rpm"

(M5) flashes. By pressing the key again, the pre-selection of the centrifugal forces can be chosen.

The flashing word, "rcf" (M6), will appear. The desired values can be selected, with the adjustable

knob (1). In the display (A-1), the regulated value is shown permanently: before, during and after the

run.

For all number marked text, please refer to Figure 18.

Figure 18

As long as no rotor is inserted, the speed is adjustable between 200 rpm and the maximum

revolution of the centrifuge.

If there is a rotor in the centrifuge, the speed can only be pre-selected up to the maximum

permissible revolution of that rotor. It is the same with the pre-selection of the RCF-Value. The

setting range is between 20 xg and the maximum permissible centrifugal force of the rotor.

See Table 4: "Max. Speed and RCF-Values for Permissible Rotor", (see APPENDIX P. VII). All

important values are listed on this table.

ATTENTION:

Please check the maximum permissible revolutions of your test tubes! (Producer Indication).

Z446K_V1.22_eng

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