Lid Lock; Pre-Selection; Pre-Selection Of Speed And Rcf-Value - Hermle Z 207 M User Manual

Table of Contents

2.3.2 Lid Lock

The lid must only be closed slightly. After closing the lid, the word "open" (M2) will no longer be

displayed. As a sign that the centrifuge is ready for starting, appearing in the display, "rpm/rcf"(A-1),

the word "close" (M1). Simultaneously, the word "rotor" (M3) appears, as well as the code number of

the rotor, which is in the centrifuge, "221.57" (11) along with all rotor specific data, for example: max.

speed, acceleration etc., are available.

please refer to Figure 13.

ATTENTION:

Before closing the lid, please check if the rotor is tightened.

By 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 control field (1). In the display (A-1), the regulated

value is shown permanently: before, during and after the run.

This pre-selected value will be stored, as long as a new pre-selection is made.

For all number marked text, please refer to Figure 14.

Figure 14

As long as the centrifuge lidis opened, the speed is adjustable between 200 rpm and the maximum

revolution of the centrifuge.

If the centrifuge lid is closed, the speed can only be pre-selected up to the maximum permissible

revolution of the selected rotor type. 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 3: Max. Speed and RCF-Values for Permissible Rotors, (see APPENDIX P. IV). All

important values are listed on this table.

ATTENTION:

Please notice the maximum permissible revolutions of the test tubes (Producer Indication)!