Memmert SV 29, SV 45 User Manual

Operating Instuctions

Shaking device
SV 14 / 22
SV 29 / 45

page 1

General notes, safety notes, notes on electrical equipment

Safety note
If the shaking device has to remain in a waterbath that is switched on, it has to remain switched on as
well! The shaking speed can be set to a standstill! When being switched off, the overpressure steam
blockage is out of action and condensate may pass into the housing of the shaking device!

and electromagnetic compatibility, as well as

notes on maintenance of the unit are to be found in the

Operating Instructions for the waterbath.

Brief technical description

The shaking device permits controlled shaking of beakers or test tubes in a waterbath.
The shaking device performs a reversing linear movement with a frequency of approx. 35 to 160 strokes
per minute. The shaking speed is controlled electronically and can be adjusted in 10 speed steps. The stroke
is approx. 15 mm.
The ambient conditions for its operation are the same as for the basic units.

Inserting and removing

The bath can be operated without shaking device if required. After the shaking device and the support
basket has been removed, the side panel supplied should be secured to the gable cover by means of the
two screws in orded to ensure optimum sealing of the cover. Fitting the shaking device has to take place
in the reverse order.

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Starting up

Fault:

overload/

blockage

SET key

Shaking device
ready for operation

Shaking
speed

Max. level

Min. level

35
50

145
160

120
130

90

105

65
80

Bar dark approx.:

Bar bright approx.:

Unit is switched on.

Unit is switched off.

After the shaking device has been switched on, the setpoint for
the shaking speed is always set to 0 strokes per minute.
The shaking speed is selected by rotating the push/turn control
while holding down the SET key.

strokes per minute

push/turn
control

Mains supply

The mains cable must be arranged so that it can not come anywhere into contact with hot surfaces of the unit.
Filling the waterbath

In order to protect the stainless steel shaking
device it is necessary to use deionised water as
the thermofluid. The bath must be filled so that
the liquid level is between the two level marks on
the right inside the tank (with the shaking device
carrying its load)!

Note!
Depending on the loading of the shaking device and the shaking speed selected, it is possible
for the bath liquid or the (possibly noxious) shaken liquid to slop over. In that case the
shaking speed or the liquid level have to be suitably adjusted but without going below the

minimum liquid level.

Switching on and setting the shaking speed

The unit is switched on by pressing the push/turn control. The
for operation.

symbol indicates that the unit is ready

Quick stop on overload

The unit incorporates a quick stop on overload as a safety device.
Operation of this safety device can be recognised by the symbol

lighting up.
In this case it is necessary to check whether there is any overloading or whether some object has been
trapped in the system.
After the overload has been removed, the shaking device can be restarted by briefly pressing the SET key
and setting the shaking speed again.

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