Tag: how to

Solid state relay, short for SSR, is a non-contact switch composed of microelectronic circuits, discrete electronic devices, and power electronic power devices. The isolation device is used to realize the isolation between the control terminal and the load terminal. The input end of the solid state relay uses a tiny control signal to directly drive a large current load. So, how to maintain a solid state relay?

The float level switch is simple in structure, easy to use, stable in performance, long in service life, and easy to install and maintain. It is almost suitable for liquid level measurement and control in various industrial automation process control, and is widely used in petroleum, food, chemical, water treatment, liquid level measurement, control and monitoring in the fields of pharmacy, electric power, papermaking, metallurgy, ships and steel furnaces.

Have you ever dropped a bunch of nails or screws in your yard and thought, "How can I find all these things?" Magnets to the rescue! Magnet cleaners use magnets to pick up ferrous materials like nails, screws , nuts and bolts. They are very useful in the house or workplace to help prevent punctures or damage to machines. But what should we pay attention to when we buy magnetic sweeper? I hope the following points can help you.

A breaker which used vacuum as an arc extinction medium is called a vacuum circuit breaker (vcb breaker). In this circuit breaker, the fixed and moving contact is enclosed in a permanently sealed vacuum interrupter. The arc is extinct as the contacts are separated in high vacuum. It is mainly used for medium voltage ranging from 11 kV to 40 kV. In this article, we will introduce the routine maintenance of vcb circuit breaker.

The working principle of electromagnetic relay is that when the electromagnet is energized, the armature is sucked down to make the two contacts, and the working circuit is closed. When the electromagnet loses its magnetism, the spring pulls the armature up, cutting off the working circuit. It is usually used in automatic control circuits. It is actually an automatic switch that uses a smaller current to control a larger current, so it plays the role of automatic adjustment, safety protection, and conversion circuit in the circuit.

If you own a building with an emergency generator electrical system integrated into its frame, routine automatic transfer switch maintenance is critical to ensure that you can function properly while utilizing the system. Automatic transfer switches monitor the voltage levels of the building's normal power supply and switch to emergency power when these voltage levels fall below a certain preset threshold. If a particularly severe storm or rolling blackout disrupts your main power source, an automatic power transfer switch will seamlessly and efficiently activate your emergency power system. So how do you test the performance of auto transfer switch?

What is the maintenance method of rubber sheet? Rubber plate itself has a certain weight, has a good grip, can be directly attached to the ground, generally do not need glue fixed. The joints can be cut into 45 degrees of slope with wallpaper knife. No obvious gap can be guaranteed through alignment and joint stitching, which does not affect the beauty and normal use of insulation glue. If the appearance requirements are strict, welding gun can be used to connect. Next, let's look at the maintenance methods of rubber sheet in detail.

A peristaltic pump usually refers to a pump with a small output pressure and an output flow of 0~30L/min. It is widely used in pharmaceutical, food, chemical and other industries to transport some sensitive, viscous, strongly corrosive, grinding, high-purity, and certain granular materials. So, when using a peristaltic pump, how should we improve its working efficiency?

A well pump is an electromechanical piece of equipment that gets installed after drilling or digging a well. Its purpose is to pump the water from your well into the house. An electric motor drives an impeller or centrifugal pump, which pushes water from your well through a jet or pipe.

Linear rails, also known as linear guideways, are used for high-precision or high-speed linear reciprocating motion and can bear a certain torque. It enables high-precision linear motion under high loads. Linear guides are used to support and guide moving parts and perform reciprocating linear motion in a given direction. Like the high requirements of all precision parts, its selection needs to be considered from the following three aspects.

When the switch detects a utility power outage, it can start the generator, automatically transferring the load from the utility grid to the generator. Automatic transfer switches are used to automatically transfer loads from utility power to backup power or backup power in the event of a power outage or as required. A careful selection of switches ensures adequate capability, safety and maximum reliability in both normal and emergency situations. Therefore, factors such as load type, continuous current rating, voltage rating and style must be considered. In addition, price and compatibility must also be considered. In this article, we will introduce some points that you should consider when choosing automatic transfer switch.

The ups inverters can seem complex and unbearable, especially if you are not an electrician. However, with some general guidelines, it is easy to understand the most important differences between inverters and why one ups inverter may better meet your needs than another. With the use of time, ups inverter will appear a variety of problems. This article will introduce ups inverter problems appear in daily life.

Carbon dioxide sensor can effectively measure indoor carbon dioxide concentration, and NDIR CO2 sensor is often used for carbon dioxide monitoring in factories, workshops, greenhouses, clean rooms and other industries and agriculture, as well as ventilation control and environmental quality in homes, villas, office buildings, conference rooms, classrooms and other fields. The scope of application includes monitoring of CO2 concentration in the production of industrial, agricultural and residential environments and the use of carbon dioxide gas units.

An inverter, it has to be an inverter to be called that. It is directly different from the transformer, that is to say, the inverter can achieve DC input, and then output AC, the working principle is the same as the switching power supply, but the oscillation frequency is within a certain range, for example, this frequency is 50 Hz, the output is AC 50 Hz. An inverter is a device that changes its frequency. UPS inverter is a device that provides backup power to electronic equipment. It is mainly used to provide uninterrupted power supply to some equipment which requires high stability of power supply. In this article, we will introduce how to choose ups inverter.

Electromagnetic relay (EMR) is a kind of electrical relay that works in the effect of the suction between the magnet core and the armature in the input circuit. In other words, electromagnetic relay works in a way of driving the movable part in the magnetic circuit by the electromagnetic suction produced by the control current going through the coil, to achieve the function of contact open, closed and conversion.

An electromagnetic relay is a double-blade, double-throw relay that uses 2NO+2NC contacts to control a larger current. In the operation demonstration, we use 4 bulbs (220V), a power supply, a push-button switch, and the relay to show you how it works in a more visual way. ATO-HH52PL series electromagnetic relays are reliable and easy-to-install drives with powerful load capacity and compact size.

For current signals, if the equipment has an independent power line, the signal output it provides (such as 4-20 mA) is active signal; If the device has no independent power supply, the signal it provides is passive. The output signal of three-wire instrument and four-wire instrument is active signal, and the output signal of two-wire instrument is passive signal. In this article, we will introduce the passive and actice signal.

The flow velocity measurement range from 0 to 100 m/s can be divided into three zones: low velocity: 0 to 5 m/s, medium velocity: 5 to 40 m/s, high velocity: 40 to 100 m/s. The anemometer's thermal probe is used for measurements from 0 to 5 m/s; the anemometer's rotor probe is most effective for velocities from 5 to 40 m/s; and the use of a pitot tube gives the best results in the high velocity range. An additional criterion for the correct selection of an anemometer flow probe is the temperature, which usually reaches about +-70°C for thermal sensors. Special anemometers have runner probes up to 350C. Pitot tubes are used above +350°C.

Today in this article, we're gonna show you a permanent magnet synchronous motor, or PMSM that features high efficiency and high dynamic performance and wring. Based on the location of the shat there are two types of PMSMs, those with central shafts and the others with non-central shafts. The model we present in this article is one of the former type, a PMSM of 60TYD series with a rating of 110V, 50Hz, 5rpm and 14W that can provide continuous rotation.

Electrical outlets are an essential part of any home as well as commercial buildings and industrial areas. Improper configurations of plugs and receptacles could result in serious electrical hazards, such as short circuit, electrocution, electrical fires and so on. Therefore, it’s important to select the right outlets for any space that involves electricity. There are a variety of factors that should be taken into consideration when choosing and ideal locking plug or connector for any of your needs.