Electronic Pressure Switch YX-18

Electronic Pressure Switch YX-18

Electronic Pressure Switches are pressure switches with digital display.

Electronic pressure switches have electronic pressure sensors instead of mechanical pressure sensors. Electronic pressure switch integrates pressure measurement, display, output and control. The non-electricity is directly converted into voltage or current through the pressure sensor. The sensor signal is processed. Finally, it is input to the microcontroller to drive the rear circuit or control the electrical switch. The user can determine the pressure value for the action of the pressure switch.

Sino-Inst offers a variety of Pressure Switches for pressure control. If you have any questions, please contact our sales engineers.

Features of Electronic Pressure Switch YX-18

  • Multi-channel switch (with load capacity 1.2A), analog signal 4~20mA optional;
  • The pressure control switch point adjustment has no dead zone and can be set arbitrarily within the range;
  • Delay switching output time can be set by yourself;
  • Key-press adjustment and on-site setting of various parameters, easy to operate and more flexible.

Specifications of Electronic Pressure Switch YX-18

Working parameters Model
YX18-X YX18-B YX18-F
Connection method G1/4(Can be customized) M20*1.5(Can be customized) M20*1.5(Can be customized)
Output function Two switches + one analog Two switches + one analog Four switching  + one analog 
voltage External power supply: 24VDC±15% External power supply: 24VDC±15%, ripple ≤±5%; 220VAC±15% (optional)
Contact rating DC 24V—1.2A (resistive) DC 24V—1A (resistive); AC 250V—3A (resistive)
control precision ≤±0.5%FS
Control range -0.1~0~0.003~60MPa
Overload capacity 150%
Switch times 1×107
Protection level IP65
Conditions of Use Medium temperature: -30℃~85℃; Ambient temperature: -20℃~70℃;
Relative humidity: 5~85%; storage temperature: -40℃~85℃

Electronic Pressure Switch Applications

From gas mechanics to hydraulic field, precision control field, pressure automatic control field. Electronic pressure switches can replace most of mechanical pressure switches, liquid level switches, pressure relays, electric contact pressure gauges and are used in some places.

Electronic Pressure Switch for Air Compressor

Pressure switches are often used in paper machines, air compressors or pump sets. In this type of equipment, we rely on pressure switches as safety devices, alarms or control elements in the system.

Take an air compressor (referred to as “air compressor”) as an example:
An ordinary air compressor consists of three main parts: a motor, a V-type air pump and an air storage tank. The air compressor is equipped with a pressure switch, which can adjust the start and stop of the motor. By adjusting the pressure in the oil tank, the air compressor can rest .

The air compressor factory can set a certain start and stop pressure according to the requirements of different customers during the debugging process. For example, when the compressor starts, air is pumped inside.

When the pressure reaches the set value, the pressure switch will contact the contacts to stop the motor. When the pressure is lower than the set value, the air compressor starts again. Keep the pressure in the oil tank within the pressure range.

Advantages of Electronic Pressure Switch

  1. Display accuracy
    Intelligent pressure switch: 0.3%FS, 0.5%FS, 1%FS, 1.5%FS
    Mechanical pressure switch: panel display
  2. Repeatability error
    Intelligent pressure switch: less than or equal to 0.5%FS
    Mechanical pressure switch: less than or equal to 1%FS, less than or equal to 1.5%FS
  3. Shock resistance
    Intelligent pressure switch: good shock resistance
    Mechanical pressure switch: relatively poor shock resistance because it is filled with oil
  4. Setting operation
    Intelligent pressure switch: power on, the zero pressure state can be operated by pressing the button, the setting range is the full range
    Mechanical pressure switch: need to be pressurized to the specified pressure, set with a screwdriver, setting range: 20%-80%FS
  5. Contact type
    Intelligent pressure switch: PNP, NPN/solid state relay; this type of contact will not produce arcing, contact carbon deposits, etc.
    Mechanical pressure switch: micro switch, will oxidize

Extended reading: Miniature Pressure Switch

Disadvantages of Electronic Pressure Switch

The advantages of the intelligent pressure switch are mentioned above, and the disadvantages of the smart pressure switch are mainly complicated in wiring. 4 or more, need power supply to use. There may be interference when encountering strong electricity.

The pressure switch is a simple pressure control device. When the measured pressure reaches the rated value, the pressure switch can send out an alarm or control signal.

Electronic pressure switches provide electronic switch output signals.

Electronic pressure switches mainly use pressure sensors for pressure sampling. The non-electricity is directly converted into voltage or current through the pressure sensor. The sensor signal is processed through the signal conditioning circuit, and finally passed through the comparison circuit. The output level is a certain logic state. This logic The level can be input to the microcontroller. Drive the rear circuit or control the electrical switch. The user can determine the pressure value of the action of the pressure switch by setting the level conversion threshold.

Electronic pressure switches are factory set to the optimum switching point or can be programmed in the field thanks to the integrated display and pushbuttons. Their integrated programmable logic allows switching points and output signals to be tailored to the application.

The numerous programmable functions of modern electronic pressure switches include hysteresis, delay time, normally closed or normally open and window functions. They also provide a constant pressure reading and indicate if the switch output is active.

Pressure switches can be divided into coil spring tube pressure switches, diaphragm pressure switches, bellows pressure switches and bellows pressure switches according to the sensing elements.

Pressure switches can be divided into mechanical and electronic smart pressure switches according to their nature.

According to the setting value, the pressure switch can be divided into: adjustable pressure switch and non-adjustable pressure switch.

Pressure switches can be divided into general pressure switches, small pressure switches, smart pressure switches, explosion-proof pressure switches, marine pressure switches, differential pressure switches, etc. according to applications.

Classification of pressure switches:

There are two types of pressure switches: mechanical and electronic. There are many kinds of mechanical pressure switches, and many kinds of electronic ones. Let’s talk about the difference between mechanical pressure switches and old and new electronic pressure switches.

The working principle of mechanical pressure switch is:

When the measured pressure exceeds the rated value, the free end of the elastic element is displaced, and the switching element is pushed directly or after comparison to change the on-off state of the switching element to achieve the purpose of controlling the measured pressure.

Generally, “electric contact pressure gauge” is used, which is an ordinary tube spring pressure gauge, plus two sets of electric contacts.

It can be connected to the electrical contacts of relatively high and low pressure, thereby controlling the pressure between the upper and lower limits. The capacity of this kind of electric contact is small, so it can only switch the control coil of the contactor, and the control position on the pressure switch can be adjusted.

The characteristics of this mechanical pressure switch are: low price, easy to use, but low accuracy, short service life, troublesome control point setting and inconvenient setting.

The working principle of the electronic pressure switch is:

The pointer pressure sensor is used to measure the pressure of the medium, and then the measured pressure is converted into a digital signal and sent to the programmable logic device PLC to control the upper and lower pressure limits. When the pressure reaches the preset pressure, the output voltage drives the motor or other controllable devices.

This kind of pressure switch has many shortcomings. Due to the use of a pointer pressure sensor, the degree is not high and the observability is poor; the entire pressure switch is expensive and has cumbersome controllability.

The new technology electronic pressure switch is designed and produced using high-precision pressure sensor and temperature compensation technology, combined with micro-processing technology and advanced analog-to-digital converter.

This pressure switch has a built-in precision pressure sensor, amplifies the pressure signal through a high-precision instrument amplifier, and collects and processes data through a high-speed MCU.

It adopts LCD or LED real-time digital display pressure, relay signal output, upper and lower limit control points can be set freely, stable and reliable, and high precision. The disadvantage is that the price is extremely high.

Mechanical pressure switches and electronic pressure switches have their own advantages, and they jointly promote the development of pressure measurement.

Extended Reading: Digital Pressure Sensor-RS485

The output of a pressure switch is a digital on-and-off signal. This signal can only have two states of on and off.

The output of a pressure transmitter, however, is an analog electrical voltage or a current signal representing 0 to 100% of the pressure range sensed by the transducer.

Electronic pressure switches are suitable for applications that require stability, multiple switch points and control flexibility. Such as control and automation equipment. They are ideal for installations that require flexible programming and adjustment, local indication displays and additional analog output signals.

The pressure switch you should use ultimately depends on your application. Electronic switches are typically used in industrial, OEM or process type applications. For high/low alarm, control, pressure monitoring and/or automation. They are also commonly used in conjunction with PLCs and other building control equipment.

Compared to mechanical switches, electronic pressure switches have a longer lifespan. They can withstand more pressure cycles. Because they have fewer moving parts, there is less wear on the diaphragm.

More Featured Pressure Switches

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Sino-Inst offers over 10 Electronic Pressure Switches for pressure measurement. About 50% of these are liquid pressure swithces, 40% is gas pressure switches.

It is widely used in hydropower, tap water, petroleum, chemical, machinery, hydraulic and other industries to measure, display and control the pressure of fluid media on site.

A wide variety of Electronic Pressure Switches options are available to you, such as free samples, paid samples.

Sino-Inst is a globally recognized supplier and manufacturer of Electronic Pressure Switch instrumentation, located in China.

Electronic Pressure Switch for Sale | Digital display

Electronic Pressure Switches are pressure switches with digital display.

Product SKU: Electronic Pressure Switch YX-18

Product Brand: Sino-Inst

Product Currency: USD

Product Price: 100

Price Valid Until: 2059-09-30

Product In-Stock: InStock

Editor's Rating:
This entry was posted in Pressure Switches, Pressure by KimGuo11. Bookmark the permalink.

About KimGuo11

Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects. Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.