Introduction; Assembly And Installation; Electrical Connection; Operating Controls - Velp Scientifica ESP Manual De Instrucciones

1. Introduction

The magnetic stirrer without motor ESP is used for chemical, biotechnological, pharmaceutical, microbiological, medical
applications, for example for growing microorganisms, dissolving nutrients and solids, avoiding settling of suspended matter
or during titrations. The power of magnetic field allows to stir liquids in vessels with different shapes up to 5 liters.
Ultra-thin magnetic stirrer without moving mechanical components, not requiring maintenance. The stirring system is
composed by coils inducing a rotating magnetic field which is controlled by a microprocessor; speed range 50 ÷ 1.100 rpm.
By the rotation of the knob completely clockwise the maximum stirring speed (1.100 rpm) will be obtained.
By a counter clockwise rotation a lower of speed will be obtained up to a complete stop. Minimum speed is 50 rpm.
A slow start allows an optimal progression of stirring speed. The modern and ergonomic structure is fabricated from
materials with an high resistance.

2. Assembly and installation

Upon receipt and after having removed the packaging, please check the integrity of the instrument. The box includes:
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Magnetic stirrer ESP
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Plug for power supply

2.1 Electrical connection

After having unpacked the instrument, place the unit on the laboratory bench.
Before connecting the instrument to the power supply, make sure that the values on the rating plate correspond to those of
the power supply. Connect the unit to the power supply using the transformer supplied.
Ensure that the socket and the relative cut-off device conform to current safety norms and easy to reach.
2.2 Start-up
Rotate the speed knob completely to the left. Place the flasks containing the sample and a suitable magnetic stirring bar on
the stirring plate. Then, set the speed by turning the speed knob.

3. Operating controls

It is possible to select speeds between 50 and 1100 rpm by rotating the knob.

4. Maintenance

No routine or extraordinary maintenance is necessary apart from periodically cleaning the unit as described in this manual.
In compliance with the product guarantee law, repairs to our units must be carried out in our factory, unless previously
agreed otherwise with local distributors. The instrument must be transported in its original packaging and any indications
present on the original packaging must be followed (e.g. palletized).
It is the responsibility of the user, to properly decontaminate the unit in case of hazardous substances remaining on the
surface or interior of the device. If in doubt about the compatibility of a cleaning or decontamination product, contact the
manufacturer or distributor.
4.1 Cleaning
Disconnect the unit from the power supply and use a cloth dampened with an non-inflammable non-aggressive detergent.
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Switching VELP 100-240V/12V without plug
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Instruction manual
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