Phau Ntawv Qhia

1. Introduction

MSL 8 is able to stir up to 8L. Due to the new brushless motor, the stirrer stays cold even after several days of continuous operation. This

feature makes it particularly appreciated in microbiology and biochemistry. Epoxy painted metal structure, with stainless steel cover, is

studied and tested in order to give to the instrument an excellent resistance to the attack of chemical agents and to corrosion in general.

The stirring speed can be set within a range of 40 – 1500 rpm using the knob on the front panel.

NOTE: it’s important to choose the most suitable magnetic stirring bar related to the quantity and the liquid to be stirred as well as to the

type of the beaker.

2. Assembly and installation

• Unpacking

➢ Check the integrity of the unit after unpacking.

• The box includes

➢ MSL 8 magnetic stirrer

➢ Instruction manual

➢ Plug for power supply

➢ Switching VELP 100-240V/12V without plug

• First installation

➢ Place the unit on non-flammable surface at least 30 cm from the wall.

➢ Make sure that the rating value of the instrument corresponds to the one of the power supply

➢ Ensure that the socket provided and the relative cut-off device are compliant with the current safety norms and easy to

reach. Use only the power supply provided with the instrument.

➢ Place the flasks containing the sample and a suitable magnetic stirring bar on the stirring plate.

3. Working

Commissioning

➢ Rotate the speed control knob to zero position. Insert the transformer into the socket.

➢ Place the flasks containing the sample and a suitable magnetic stirring bar on the stirring plate.

Stirring

➢ Adjust speed set point by turning the speed control knob.

➢ Speed increases until set point is achieved.

➢ A microprocessor ensures constant speed (counter-reaction).

➢ Switch off the stirring by turning the knob to zero position.

4. Maintenance

Maintenance

➢ No routine or extraordinary maintenance is necessary;

➢ Repairs must be carried out by authorized Velp personnel only;

➢ Instrument must be transported in its original packaging 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.

Cleaning

➢ Disconnect the unit from the power supply and use a cloth dampened with a non-flammable non-aggressive

detergent.