Control And Display Elements; Symbols On The Control Panel; Keys And Setting Options; Setting The Brake Step - Hettich MIKRO 120 Bedienungsanleitung

12

Control and display elements

See figure on page 2.
Fig. 1: Display and control panel
12.1

Symbols on the control panel

Rotation indicator. The rotation indicator lights up and rotates anticlockwise while the rotor is turning.
When the rotor is stationary, the status of the lid is displayed by symbols in the rotation indicator:
Symbol : Lid open
Symbol : Lid closed
Operator errors and occurring faults are indicated on the display (see Chapter "Faults").
12.2

Keys and setting options

• Speed
RPM x 100
A numeric value of 500 RPM up to the maximum rotor speed can be set. For maximum rotor speed,
see chapter "Anhang/Appendix, Rotor und Zubehör/Rotor and accessories". Preset in steps of 100
(RPM = displayed value x 100).
If the key
• Display the brake step.
• Running time
t
- Preset from 1 - 99 minutes, in 1 minute steps
- Continuous operation "--"
• Braking steps 0 or 1. Step 1 = short run-down time, Step 0 = long run-down time.
If the key
• Start centrifugation run.
START
• End centrifugation run.
STOP
The rotor runs down with the preselected brake step.
• Save the brake step.
• Short-time centrifugation.
The centrifugation run occurs while the key
• Display the brake step.
• Unlock the lid.
13

Setting the brake step

•
Switch off the mains switch.
•
Keep the key beneath the speed indicator and the key
•
Switch on the mains switch and release the keys again.
The speed indicator shows the machine version and the time indicator shows the set brake step: e.g.:
RPM x 100 t
If the machine version and brake step are not displayed, press the
displayed.
The machine version is set by the manufacturer and cannot be changed.
•
Set the desired brake step with the keys
Step 1 = short run-down time, Step 0 = long run-down time.
For run-down times, see chapter "Anhang/Appendix, Rotor und Zubehör/Rotor and accessories".
•
Press the key to save the setting.
STOP
or is kept pressed, the value changes with increasing speed.
or is kept pressed, the value changes with increasing speed.
START
RPM x 100
STOP
beneath the time indicator.
is kept pressed.
pressed simultaneously.
START
t
STOP
key under the speed indicator until they are
EN
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