Heating Mantle Used in Laboratory

The heating mantle used in laboratory is to use alkali-free glass fiber as insulating material, install alloy wire spring in it, and use aluminum silicate cotton to keep warm with a hemispherical heat preservation body that has been vacuum-shaped. The outer shell is one-time injection molding, and the upper cover is electrostatic sprayed. Process, due to the use of spherical heating, the computer chip is used as the main control unit for temperature control, multiple digital filter circuits, PID control algorithm, self-tuning function, high measurement accuracy, small temperature impact, single-key light touch operation, dual-screen display, Internal and external thermocouples measure temperature, SCR controls the output, and has the function of burnout protection. It has the characteristics of fast heating, high temperature, easy operation and durability.

 

The heating mantle used in laboratory is a commonly used heating instrument in the laboratory. It realizes constant temperature heating through electronic pressure regulation, which not only saves the heating time of the experimental objects, but also reduces the energy consumption.

The heating mantle used in laboratory has the characteristics of large heating area, fast heating and uniform temperature, anti-corrosion, anti-aging, durable, safe and reliable, novel and beautiful in shape, easy to operate and good in use effect. It is suitable for laboratory liquid heating in colleges and universities, petrochemical, pharmaceutical, environmental protection and other industries. Capacity: 100ml, 250ml, 500ml, 100ml optional; temperature control range: room temperature -380°C, temperature control accuracy: ±1°C.

1. Fix the pole in the screw hole above the heating mantle used in laboratory, adjust the height of the cross clamp, fix the reaction bottle with a universal clamp, put in a suitable stirring bar, plug in the power supply, and turn on the switch.

2. Adjust the "stirring" knob clockwise, and adjust it to a suitable position according to the speed display for stirring.

3. If the mixing capacity is large or the solution is viscous, the knob can be adjusted up appropriately to increase the stirring force.

4. Temperature setting: press the setting plus "▲" or setting minus "▼" key and hold, the required heating temperature will be quickly set, such as: 100 ℃, the green light is on for heating, and the green light is off for stop. The microcomputer will determine the heating amount according to the temperature difference between the set temperature and the current temperature, so as to ensure that the temperature rises in place at one time, and maintain the balance of heat supply and heat dissipation under the temperature difference between the set value and the displayed value ± 1°C, so that the heating process can be easily completed.

5. Self-tuning function, starting the self-tuning function can make different heating sections or heating power and solution irregular, the heating time is short, the temperature is small, and the balance is good, but the self-tuning should be reset after changing the heating medium or heating conditions Certainly.

6. Start self-tuning: press the shift key "◄" for 5 seconds, the number in the setting window will flash and enter the self-tuning state. It is used during the initial heating, and the self-tuning performed in the middle is inaccurate.

7. There is a rubber plug at the bottom of the heating mantle used in laboratory, which is used to protect the external thermocouple socket from corrosion and rust and to conduct the inner wire. If it is pulled out, the inner probe will be disconnected and the machine will stop working. If the external thermocouple is used, the plug should be pulled out for storage, the external thermocouple plug is inserted into the socket and the nut is locked, and then the stainless steel probe is put into the solution for temperature control and heating.

8. The heating mantle used in laboratory is equipped with a burnout protection function. When the thermocouple is not well connected, the display window will display "1" or "hhhh" and the green light will go out, and the appliance will stop heating, and it needs to be checked before use.

1. It has an electric contact thermometer connection socket, which can control the temperature to plus or minus 0.1 degrees to achieve a higher constant temperature stirring function.

2. The heating mantle used in laboratory also has a two-way stirring function, so that it can be stirred quickly to achieve the purpose of fast mixing.

3. The heating mantle used in laboratory works reliably, is easy to operate, and has a reasonable structure. The heating power is continuously adjustable, and the heating power display is intuitive. It is convenient to observe and control the heating state. The stirring speed is continuously adjustable to meet different work needs. It is easy to carry and is an ideal equipment for the laboratory.

Turn on the heating control power supply, the power indicator light is on, turn the heating control knob to the right, the heating control indicator light is on; the whole machine starts to work. Turn on the stirring control power supply, the power indicator light is on, turn the speed control knob to the right, and the stirring bar will start to rotate, and the speed adjustment is only necessary for the experiment. If the use of the heating mantle is controlled by an electric contact thermometer to achieve intuitive temperature display, please connect one end of the prepared connection line to the electric contact thermometer and put it into the liquid to be tested; the other end is connected to the socket. Then turn on the heating control switch, the heating indicator light is on, indicating that the heating jacket is heating, and then gently turn the heating control pressure adjustment knob, the power of the heating jacket will produce different power with the change of the adjustment position, and the working voltmeter will also display different values. Voltage index, clockwise adjustment will gradually increase the power and increase the operating temperature, otherwise it will be reversed.

1. The instrument should be well grounded.

2. When you use it for the first time, there will be white smoke and peculiar smell coming out of the cover. It is normal for the color to change from white to brown and then to white. Because the glass fiber contains oil and other compounds in the production process, it should be placed in a ventilated place. place, it can be used normally after disappearing in a few minutes.

3. When the heating mantle above 3000ml is used in laboratory, there is a squeak-squeak sound because the structure of the furnace wire is different and it is related to the pulse signal of the thyristor voltage regulation, so it can be used with confidence.

4. When the liquid spills into the cover, please turn off the power quickly, put the heating mantle used in laboratory in a ventilated place, and use it after drying to avoid the danger of electric leakage or electrical short circuit.

5. When not in use for a long time, please store the heating mantle used in laboratory in a dry and non-corrosive gas place.

6. Please do not keep warm or dry burn with empty cover.

7. When the ambient humidity is relatively high, there may be induction electricity transmitted to the shell through the insulation layer, please ensure the grounding wire and pay attention to ventilation.