Instruction Manual/Gebrauchsanleitung S 50 05/2019 V 2.7
Page / Seite 7 / 18
8.
Operation
The shaker S 50 can hold up to 8 Erlenmeyer flasks of up to 500 ml. The opto-electronically controlled motor
guarantees even and intensive shaking frequency between 100 – 800 rpm.
The unit is turned on by the use of the power switch.
The timer can be used to control the length of shaking time. The unit will automatically turn off after the set time
has elapsed.
The centre on/off switch has 3 positions:
a)
Turning the switch upwards is for continuous use without the timer.
b)
The middle position is for „OFF“
c)
Turning the switch downwards allows the timer to be used.
The timer may be set so that the unit will turn off automatically after the set period has elapsed. The timer may be set
for a period of 1 to 60 minutes.
When the timer is set, both yellow lights will be on and the unit will begin the shaking operation. When the set time
has elapsed both lights will turn off and the unit will stop the shaking operation.
The shaking frequency is regulated by the speed knob. Always make sure that the shaking frequency is not set too high
as it may cause damage to the instrument or the flasks by hitting the surroundings. Always start the speed at the lowest
possible shaking frequency (100 rpm).
9.
Maintenance
All joints of this unit are of ball bearings; this means that no special maintenance is required. The drive motor is a DC
motor with carbon brushes. The life of the carbon brushes depends on the frequency of use of the unit. Should the
carbon brushes need to be exchanged, they should be done so by a knowledgeable service repairman. Replacement
brushes may be obtained by your distributor or the manufacturer.
Before doing any repair work, disconnect the mains first!
10.
Cleaning
The housing is acid-resistance covered for long lasting use and easy cleaning.
For periodic cleaning, the unit may be cleaned with warm water and dishwashing liquid.
To remove crust or lime build-up and water rings use a regular household cleaner. Remove excess cleaner with a damp
cloth or sponge.
Do not use steel wool or a similar scratching sponge to clean the unit.
