CHIJIU SH21-1 thermostatic Magnetic Stirrer 3L/150 ℃

SH21-1

Thermostatic Magnetic Stirrer

Max. stirring Capacity 3L, stirring speed 0~1500rpm, heating power adjustable within 500W, Temperature range RT +~ 150 ℃, temperature control accuracy +/- 1 ℃

Product Description

SH21-1 constant temperature magnetic stirrer adopts brushless DC motor and high-quality magnetic steel, with stepless speed regulation, good speed regulation performance and strong stirring force. The mercury thermometer at the distribution point can automatically control the heating temperature, the heating power is steplessly adjustable, and the shell is made of aluminum alloy. It is widely used in chemical, medical and other scientific research, teaching and other fields.

plan

Instructions

1. Place the SH21-1 constant temperature magnetic stirrer stably, put the beaker containing the liquid medicine in the middle of the working plate (ie electric furnace), put an appropriate stirring bar in the beaker, and make it in the center of the beaker, turn the two knobs Adjust the counterclockwise to the minimum, connect the power cord, plug in the power, turn on the power switch, the power indicator light is on, and slowly adjust the speed control knob clockwise to make the stirring bar in the beaker rotate from slow to fast to stir the liquid medicine until the required stirring speed.

2. When the liquid medicine needs to be heated, turn the button switch on the back of the machine upward, the temperature rise indicator light is on, the electric furnace is energized to generate heat, the heating power of the electric furnace is adjusted by the temperature speed knob, and the scale indicates the angular position of the knob.

3. If automatic temperature control is required, the two lead wires of the electric contact mercury thermometer can be connected to the two terminal posts at the back of the machine. The thermometer is inserted into the liquid medicine in the beaker and fixed on the benchmark. When it is heated to the preset temperature, it will automatically stop heating. When the temperature drops below the preset temperature, it will automatically resume heating, so as to achieve automatic temperature control.

Note: The electric furnace has a certain thermal inertia, that is, when the electric furnace is heated to the preset temperature, the electric furnace has been turned off, but the remaining heat still heats the liquid to make it warm up, which affects the temperature control accuracy. At this time, the heating power can be appropriately reduced.

4. After use. The power supply should be unplugged, and the appearance should be cleaned after cooling and stored.

Precautions

1. The power socket should have good grounding;

2. The machine should be avoided to be used in a humid environment;

3. When the machine is in use, the liquid medicine in the beaker should not be too full to prevent it from overflowing during stirring;

4. The SH21-1 constant temperature magnetic stirrer cannot be used as an electric furnace alone.

Packing list： Host x1, benchmark x1, power cord x1, Stir x2, instruction manual x1, certificate x1

[Note]Because the manufacturer's packaging may be updated or upgraded, the detailed packaging list shall be subject to the latest standard configuration of the manufacturer.