SCIENTECH 725 (01) PDF Document

Unpack the SCIENTECH 725 and check for any damage that may have occurred during transit. Any damage should be reported to the responsible carrier, railway, or postal authority, and a request for a damage report should be made.

1. Position the magnetic stirrer on a level surface in an area where drafts and rapidly changing ambient conditions are not present.

2. Leave at least 200mm clearance all around the unit to allow for proper ventilation and access.

The display will illuminate as soon as the unit is plugged in. Place the vessel containing the liquid to be stirred on top of the magnetic stirrer. NOTE: The vessel must be non-magnetic. Drop the stirrer bar into the vessel.

Adjust the speed control knob until the desired speed is reached. Turning the knob clockwise will increase the speed of the stirrer bar.

The SCIENTECH 725 has two options for controlling the temperature. The default method is via the built-in plate sensor. The other method is via the external plug-in sensor which can be placed directly into the liquid.

To select which temperature sensor to use, press and hold the “SET” key. The letters “Lc-” will display; this is a prompt to unlock the parameter settings.

Use the up arrow key to show a value of “9” and then press the “SET” key.

The letters “EnS” will display. Use the up and down key to change the value from “0” or “2”.

Where “0” is the plate sensor (default) and “2” is the external sensor.

Press and release the SET key to exit.

Press and release the “SET” key and the temperature display digits will start flashing. Use the up or down arrow keys to change the value. Press the shift arrow key to move to the next digit and so on. When you are finished changing the value, press and release the SET key.

SET KEY: Enters setting modes.

SHIFT ARROW KEY: Moves to the next digit when setting values.

DOWN ARROW KEY: Decreases the value of the flashing digit.

UP ARROW – BACKLIGHT: Increases the value of the flashing digit.

READ ALL INSTRUCTIONS BEFORE USE. FAILURE TO FOLLOW THESE PRECAUTIONS COULD RESULT IN INJURY TO YOURSELF AND OTHERS.

Burn Hazard: Do not touch hot, liquid or heating surfaces while equipment is heating or operating. Hot surfaces and liquid can burn skin. Allow the hot surfaces to cool before handling.

Electric Shock Hazard: Keep water and other liquids from entering the inside of the equipment. Liquid inside the equipment could cause an electrical shock. Do not spray water or cleaning products. Liquid could contact the electrical components and cause a short circuit or an electrical shock. Do not use equipment if power cord is damaged or has been modified.

1. Use the Magnetic Stirrer on an individual 15A mains outlet only. DO NOT OVERLOAD THE CIRCUIT.

2. Ensure that the equipment and the power supply cord does not come into contact with hot surfaces.

3. This unit is only to be used by properly trained laboratory staff.

4. If the supply cord is damaged, it must be replaced with a new cord assembly available from the suppliers agent.

5. Use only earthed outlets matching the serial plate voltage.

6. Have equipment installed by a qualified personnel in accordance with local codes and ordinances.

7. Use equipment in a flat level position.

8. The equipment may be hot, even though the pilot light is not on.

9. Do not operate if equipment has been damaged or is malfunctioning in any way.

10. These units are designed to run only on alternating current (A.C.). DO NOT CONNECT TO DIRECT CURRENT (D.C).

1. Always ensure that the unit is disconnected from the main power supply before cleaning.

2. This unit should not be cleaned with a water jet or immersed in water. Use only a damp cloth or sponge dipped in soapy water.

3. Wipe off the unit with a dry cloth and wait at least a half an hour before re-connecting to the main power outlet.

Yes. When using the following chemicals, limit the time to a maximum of four hours and then clean surfaces immediately. Always work in a well-ventilated area and wear the correct protective clothing.

• ALUMINIUM CHLORIDE

• BARIUM CHLORIDE

• CALCIUM CHLORIDE

• FERROUS CHLORIDE

• MERCURIC CHLORIDE

• STANNOUS CHLORIDE

• CITRIC CHLORIDE

• CARBOLIC ACID

• TARTARIC ACID

• BICHLORIDE OF MERCURY

• PHENOL

• POTASSIUM THIOCYANATE

• CHLORINATED LIME

• DANIN’S SOLUTION

• LYSOL

• MERCURY SALTS

• POTASSIUM PERMANGANATE

• SODIUM HYPOCHLORIDE

Yes, avoid using the following chemicals:

• AQUA REGIA

• IODENE

• COPPER SULPHATE

• FERRIC CHLORIDE

• SULPHURIC ACID

• HYDROCHLORIC ACID

• Switch off the unit when not in use. Extended operation without a filled beaker on the hot plate surface will shorten the life of the elements.

• When using hazardous chemicals, ensure that the unit is operated under a fume hood as the hazardous fumes may affect the operator.

The intended uses include applications in the following fields:

• Agriculture

• Automotive

• Biochemistry

• Botany

• Chemistry

• Cosmetics

• Electronics

• Food

• Genetics

• Industrial

• Medical

• Microbiology

• Mining

• Nuclear

• Paper/Packaging

• Petrochemical

• Pharmaceutical Physics

• Power Generation

• Special Metals

• Sugar

• Water

• Zoology