The pressure switch is different from the ordinary switch. The pressure switch is not normally used in the home. The pressure switch not only uses the pressure sensor, but also uses a transmission circuit and a dedicated technology to process the modular signal of the CPU to detect pressure and display pressure. The importance of pressure switches can be seen in the size, alarm, and output of control pressure signals. So, you know how the pressure switch works ? Today, I mainly introduce to you what is the pressure switch and the working principle of the pressure switch , and I hope to help you!
Pressure Switch Introduction
Because of the relatively high precision and stable performance of pressure switches, pressure switches are widely used in the petrochemical industry, metallurgical industry, electric power industry, and water supply industry to measure different liquids and other surface pressures and absolute pressures. Control is an intelligent detection and control instrument that is widely used in industrial fields. Not only that, pressure switches can also be used in Apollo spacecraft, Boeing 747, Airbus A320, M1A1 and other aviation and military products.
There are two main types of pressure switches, one is normally open and the other is normally closed. Pressure switch has four main characteristics. The first one is that the pipe thread joint type and installation structure and the installation structure of the welding copper pipe are very flexible, and it is also very convenient in terms of use, and no additional installation is required to fix the structure; The feature is that the pressure switch has a blade-type connection and a wire-type connection for customers to choose; the third feature is that the pressure switch has a safe and reliable sealed stainless steel sensor, customers can use it with confidence. The last one is that within a certain pressure range, the customer can arbitrarily select a pressure value for the pressure switch to run.
Pressure switch works
The working principle of the pressure switch is that if the pressure in the pressure switch system is higher or lower than the initially set safe pressure value, the disc in the sensor inside the pressure switch can sense and alarm in time, and at the same time The movement occurs, and the guide rod is connected to each other so that the pressure switch connector is turned on or disconnected from the power source. When the pressure inside the pressure switch system returns to the initially set safe pressure value, the disc can be sensed in time, and then return to its original position in a moment, and the switch will automatically return to the original position and state. However, it should be noted that when selecting the pressure switch, it is necessary to know whether the pressure of the pressure switch is pulsating or not, and it is not necessary to use a throttle valve, which may cause loss of the meter.
Pressure switch technical parameters
Range: -100KPa to 200MPa;
Supply voltage: 12 to 35VDC (24VDC calibration voltage)/AC 220VAC power supply;
Output following capacitor capacity: 380V3A, 220V5A, 24VDC5A, etc.;
Accuracy: Better than 0.05% FS, 1% FS, etc.
Setting range: full scale can be set
Monitoring point: anti-fluctuation backlash setting;
Operating temperature: -20 degrees Celsius to 85 degrees;
Protection class: IP65
Sampling speed: 10 times/sec (this can be made according to customer's requirements)
Interface threads: M20*1.5, G1/4, G1/2, 1/4NPT (this is also configurable)
Pressure switch model
Model: 12NN-K4-N4-B1A-X806, adjustable range: 35-415mbar, maximum working pressure: 14bar, return difference: 7mbar, protection class: waterproof.
Model: 12NN-K4-N4-C2A-TTX834, adjustable range: 35-415mbar, maximum working pressure: 14bar, differential pressure: 7mbar, protection class: waterproof.
Model: 12RN-K4-M4-C2A-TTX806, adjustable range: 35-415mbar, maximum working pressure: 14bar, differential pressure: 7mbar, protection class: waterproof. and many more
Pressure switch effect
Pressure switch used in the air compressor is mainly to adjust the start and stop state of the air compressor, by adjusting the pressure in the air tank to allow the air compressor to stop rest, the machine has a maintenance effect. When commissioning the air compressor factory, adjust to the specified pressure according to the customer's needs, and then set a pressure difference.
How to adjust the pressure switch
1. Select pressure controller with setting range 0.1~1.0Mpa (JC-210, HNS-210)
2. Turn the pressure adjustment screw on the right side of the top so that the pointer indicates 0.8Mpa (8kg or 8bar) on the scale. This value is the upper limit switch value.
3. Turn the top left pressure adjustment screw so that the pointer indicates the 0.3Mpa of the scale, the lower limit switch value = the upper limit switch value - switch pressure difference = 0.8-0.3 = 0.5, this value is the lower limit switch value.
Pressure switch instructions
In the process of using the pressure switch, the form of selection setting is basically a short press. For example, first of all, when the letters show SET, we can choose to press the panel display SET.1 shortly after 2 seconds to enter the setting mode. Then by adjusting up and down, the panel cycles through SAL, SUN, and SEt. Press set to select the setting.
In the SAL setting category, press the UP and DOWN keys momentarily and the panel cycles through AL, SALd, SALL, and SALH. Set by short-pressing the set key, after setting is complete, short press the set key to automatically enter the setting of the next option;
In the SUN setup category, press the UP and DOWN keys shortly. The panel displays UN, PSI, bAr, and kP in a loop. Select a unit by pressing the set key, and select UN to exit the SUN setting. Then press the UP and DOWN keys simultaneously for about 2 seconds to enter the range and calibration settings. SFO, short press the UP and DOWN keys. The panel displays SSC, FULL, oooo and SFO. Press the SET key momentarily to select the desired settings. parameter. When entering zero and span calibration, the digital tube will display the current data value acquired by AD. When the displayed data is an intermediate value, press the UP button (DOWN button). When the value does not change, the value becomes Calibration value, then press DOWN key (UP key) to save the data, and finally press SET key to exit the setting state.
Editor's summary: Although the use of the pressure switch will appear to be more complicated in terms of description text, it is easier than expected in the operation process. Therefore, the users of the pressure switch must carefully read the above instructions, and then follow the operation process, and gradually become skilled in the process of exploration.
Pressure switch exquisite switch posted switch rail explosion-proof switch key switch pressure switch working principle
our company is professional manufacturer of rubber products.Besides producing some general rubber products, we can also customize the production according to your requirements.
RenqiuXingcheng Rubber Products Co., Ltd. is located in the side of the Baiyang lake, our company is professional manufacturer of rubber products. We are one of the leading rubber company in china,The company is a private enterprise which is engaged in scientific research, production, sales and service and has obtained ISO 9001 certification. Our main business is producing all kinds of rubber products, including anti-skid plates, Rubber Sheet Series, Rubber Mat Series and horse mat series ect., The products are shockproof, anti-wear, anti-high and low temperature, anti-aging, oil resistant and chemical resistant in character.At present, our products have been sold at home and abroad and mainly exported to Canada, Germany, Chile, etc. We welcome domestic and foreign merchants to negotiate and cooperate with us. We are willing to join hands with old and new friends in creating a better tomorrow.
Custom Logo Rubber Mats,Rubber Steering Wheel Cover,Car Steering Wheel Cover,Flexible Rubber Sheet
Renqiu Xingcheng Rubber Products Co., Ltd. , https://www.rubbermats.nl