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Magnetic stirrers are usually used in food, biopharmaceutical and other fields. As biopharmaceuticals put forward higher requirements for the sterility and risk control of the agitator shaft seal, industrial magnetic agitators came into being in Sweden in the 1980s. Magnetic stirrers have become the mainstream of the market, and continue to develop in the direction of simplicity, high torque, high shear force or very low shear force, safe bearing materials, easy online cleaning, and online sterilization. For example, a magnetic stirrer for bioreactors, a magnetic stirrer for high-shear homogenization, etc. Whether it can prove that the agitator can be cleaned and sterilized online, and the bearing material safety has become the gold standard before the selection of biopharmaceutical agitators. 

Dehumidifiers are becoming more and more accepted by people. Dehumidifiers can be seen in hotels, production workshops, storage warehouses and even daily life. For example, ATO's Commercial dehumidifiers and Industrial dehumidifiers have the characteristics of low noise, energy saving and high efficiency, which are very suitable for commercial or industrial environments. As an electrical appliance, it is inevitable that there will be malfunctions. The following is an analysis of the related failures of the dehumidifier.

In the daily use of handheld inkjet printer are encountered in the process of some problems. Generally speaking, the working principle of online inkjet printers is more complex, and when a failure occurs, you usually need to contact the inkjet printer manufacturer's staff to guide the maintenance. While the working principle of handheld inkjet printers is relatively simple, as long as know the common processing methods, the fault can be easily resolved, and ATO's editor will explain it to you below.

Before the dryer enters normal work, there will be a period of adaptation (run-in period, generally 3 days). This period is to ensure that the dryer can work normally during the formal production process and minimize the number of dryers. The probability of an accident, the correct operation during the adaptation period can prolong the service life of the dryer, so we must pay attention to the details of each operation during this period.

Handheld inkjet printer as a popular small, portable coding equipment, can be easily on all kinds of products, large can not move the equipment on the flexible positioning of the assignment code. Can complete all kinds of common Chinese, English, digital, serial numbers, icons, LOGO, variable information, two-dimensional codes, bar codes and other forms of identification. ATO as one of the handheld printer equipment suppliers, provide a series of pre-sales and after-sales service programs. Now, let's take a look at the specific content of the handheld inkjet printer operating guide.

The air blower is mainly composed of the following six parts: motor, air filter, air blower body, air chamber, base (and oil tank), oil dripping nozzle. The air blower operates by the eccentric rotor in the cylinder, and makes the volume change between the blades in the rotor slot to absorb, compress and eject the air. During the operation, the pressure difference of the air blower is used to automatically send the lubrication to the oil dripping nozzle and drop it into the cylinder to reduce the friction and noise, while keeping the gas in the cylinder from returning. Air blowers are mainly divided into roots air blower, centrifugal air blower and rotary air blower. The working principles of different types of air blowers are different.

A vacuum pump is a device or equipment that uses mechanical, physical, chemical or physical chemical methods to pump the pumped container to obtain a vacuum. In layman's terms, a vacuum pump is a device that improves, generates and maintains vacuum in an enclosed space by various methods. How to choose the right vacuum pump? This article will list nine aspects for your reference.

An electric hot knife refers to a hand-held knife that uses electric energy to generate heat to achieve cutting. There are mainly two electric hot knives with different principles on the market. A relatively simple method is to install an electric heating wire inside the knife to generate heat after being energized. The advantages of this electric hot knife are low price, low cost, and simple structure. The disadvantage is that the blade is relatively thick and the preheating is slow, so it can only be used to cut foam products.

Daily maintenance - after each use of Electric Pressure Washer
1. Flush the hoses and filters connected to the detergent to remove all detergent residues to help prevent corrosion.
2. Turn off the water supply connected to the electric pressure washer.
3. Release all pressure from the hose by pulling the trigger on the servo gun lever.
4. Remove the rubber hose and pressure hose from the electric pressure washer.
5. Turn the electric source switch to the "on" and "off" positions four to five times for 1-3 seconds each to remove water from the pump. This procedure helps protect the pump from damage.

Programmable Logic Controller, short for PLC, is a digital electronic device with a microprocessor. The device is a digital logic controller for automatic control, which can load control instructions into the memory at any time for storage and execution. The programmable controller is composed of internal CPU, instruction and data memory, input and output units, power supply modules, digital and analog units.

When the PLC is put into operation, its working process is generally divided into three stages, namely input sampling, user program execution and output refresh three stages. Completing the above three stages can be called a scan cycle. During the entire operation, the CPU of PLC repeatedly executes the above three stages at a certain scanning speed.

All motors with external characteristics of DC motors that use electronic commutation are collectively referred to as brushless motors. Due to the emergence of brushless DC motors, the strict boundaries between AC-DC speed regulation systems have been broken. In the history of the development of brushless motors, there have been two major structures of brushless motors with great difference, which are brushless DC motors and AC commutated brushless motors.

The electric energy of the bldc motor is finally supplied in DC mode. Based on the method of obtaining DC power, there are two main implementation methods for brushless DC motors: AC-DC-AC control system and DC-AC control system, which are known as square wave.

The portable refractometer is used to continuously measure the refractive index of the medium during the process. It can mainly measure the temperature and density of medium, including salinity, milk, brix, alcohol, antifreeze, coolant, wine and honey, and also can be used for beer brewing. The handheld refractmeter also named as brix refractometer, is applied in food industry, breeding industry, auto repair industry and many other fields.

Industrial vacuum cleaner is an environmentally friendly cleaning equipment commonly used in industry. The equipment is used to collect waste, filter and purify the air in the industrial production process, and clean the dust and particles in the environment. Industrial vacuum cleaners are widely used in various fields such as textiles, chemicals, machinery, medicine, casting, etc., which can prevent some occupational disease hazards and improve production efficiency.

UV spectrophotometer is a commonly used photometer product. With it, light of different wavelengths can be arbitrarily selected in the ultraviolet-visible region. The instrument has the advantages of stable performance, flexible use, high reliability, and easy maintenance. The UV spectrophotometer needs to be calibrated when in use. The following is the calibration method of the UV spectrophotometer.

Hall sensor can also be called as the Hall encoder. The Hall sensor in the brushless DC motor controller is used to detect the rotation speed of the bldc motor. In some applications, it is necessary to adjust the speed of the brushless DC motor, and to ensure that the bldc motor remains unchanged at a certain speed, so it is necessary to add a Hall sensor that detects the speed for feedback. The brushless DC motor controller will output different control pulse signals according to the detected speed value, and finally achieve the purpose of quickly adjusting the speed of the brushless DC motor.

The pH meter is an important tool for measuring and reacting the pH of the solution, and the pH electrode can realize the function of detecting pH value and output signal by supporting the pH meter. There are various models and products of pH meters. The display mode is also divided into two options: pointer display and digital display. However, no matter how the type of pH meter changes, its working principle is the same. The main body of the pH meter is a precision potentiometer. A pH meter consists of a reference electrode, a glass electrode and itself.

The electric welding machine makes full use of the high-temperature arc generated when the positive and negative poles are short-circuited instantaneously to melt the solder on the welding rod and the material to be welded, so that the contacted objects are combined. Electric welding machines are generally divided into two types according to the type of output power, one is AC power and the other is DC. The welding machine uses the principle of inductance. The inductance will produce huge voltage changes when it is switched on and off. The welding machine makes full use of the high-pressure arc generated when the positive and negative poles are short-circuited instantaneously to melt the solder on the welding rod and the material to be welded, so as to realize atom integration.

If the brushless dc motor without Hall sensor is broken, it cannot be replaced with the brushless dc motor with Hall sensor. The hardware drive circuit of these two motors is different, so is the program code, thus the bldc motors will not work after the replacement. ATO will tell you why.

1. The hardware circuit of a motor with Hall sensor and a motor without Hall sensor is different.

For a three-phase bldc motor, a brushless dc motor with Hall sensors has eight wires: 3 three-phase motor wires, 3 Hall wires, and 2 Hall power wires. There are three Hall chips inside the brushless dc motor with Hall sensor. When the motor is working, the real-time position of the rotor can be displayed to the control board in the form of waveform. Based on the waveform, the position of the rotor and the rhythm to start the brushless dc motor will be determined by the control board.

As one of the most common types of relays, timer relay plays a very important role in the electrical control system. The principle is to complete the control of the line by keeping the input signal for a certain period of time-that is, "delay effect", and then continue to execute the command of the input model. When choosing a timer relay, the most important factors to consider are the delay range, delay type, delay accuracy and working conditions. For sure, some basic factors will not be ignored, such as the selection of rated operating voltage and rated operating current.

Voltage stabilizer is a power supply circuit or power supply device that can automatically adjust the output voltage. Its function is to stabilize the voltage of the power supply that fluctuates greatly and does not meet the requirements of electrical equipment within the set value range. The purpose of voltage stabilizer is to enable various circuits or electrical equipment to work normally under the rated operating voltage.

At the very beginning, the voltage stabilizer stabilized the voltage through the beating of the relay. When the voltage of the grid fluctuates, the automatic correction circuit of the voltage stabilizer will be activated to activate the internal relay and force the output voltage to remain close to the set value. The advantage of this circuit is that the circuit is simple, but the disadvantage is that the voltage regulation accuracy is not high, and every beat and shift of the relay will cause an instantaneous interruption of the power supply and spark interference.