The switch is an indispensable thing in our daily life. Capacitive, photoelectric, eddy current and other various switches. Today, the editor will take you into the world of the switch, let us look at it together Look at the pressure switch for the model of the pressure switch. Pressure switch model Model: 12NN-K4-N4-B1A-X806, adjustable range: 35-415mbar, maximum working pressure: 14bar, return difference: 7mbar, protection level: waterproof. Model: 12NN-K4-N4-C2A-TTX834, adjustable range: 35-415mbar, maximum working pressure: 14bar, return difference: 7mbar, protection level: waterproof. Model: 12RN-K4-M4-C2A-TTX806, adjustable range: 35-415mbar, maximum working pressure: 14bar, return difference: 7mbar, protection level: waterproof. Notes on selection of pressure switch model 1. Selection of electrical interface When selecting the model, you must confirm the user's signal collection method and field wiring situation again. The sensor signal must be connected to the user's collection interface; choosing the correct and correct electrical interface and signal method can avoid customer complaints and make the customer feel technically professional. Sex. 2. Selection of pressure switch interface In the selection process, the size of the pressure interface used by the user is strictly implemented, and the product outline drawing is confirmed with the user. If the customer provides samples, it is also possible to choose the appropriate and correct thread connection form, which provides convenience for the customer to use and install. 3. Selection of the range of the pressure switch When selecting the model, the working pressure level of the equipment must be considered. The pressure level of the transmitter must be consistent with the application. Pressure selection must be based on the pressure range provided by the user. If the product range used by the user during the communication process is less than the measured medium range, it should be exchanged with the user in time for consultation and replacement. Inspection of pressure switch 1. Appearance: The nameplate of the pressure switch should be clear and complete. The nameplate should clearly indicate the product name, product model, product specifications, factory number, and year of manufacture. The switches and buttons on the pressure switch panel should be intact, and the surface coating and plating should be smooth and intact, without corrosion and rust. 2. Internal: The assembly of each part of the pressure switch should be complete, the fastener part should be firm, no looseness, the rotatable part should be flexible and reliable, and there should be no impurities such as residue in the gap of the small components inside. Pressure switch index 1. Measuring range: The measuring range of the pressure switch is 20% -80% of the adjusting range. 2. Set point error and repeatability error: The set point error and repeatability error of the pressure switch should not exceed 4% of the measuring range. 3. Switching difference: refers to the difference between the switching action value and the recovery value. For non-adjustable pressure switches, the switching difference should not be higher than 10% of the range; on the contrary, for adjustable pressure switches, in addition to the special requirements of the manufacturer, in general, the maximum switching difference should not exceed 30% of the range, the minimum switching The difference does not exceed 10% of the measuring range. 4. Insulation resistance: If the operating temperature of the pressure switch is 20-40 ° C and the humidity is around 50%, then the insulation resistance between each terminal of the pressure switch and the housing should not be less than 20MΩ, otherwise it is easy to cause leakage . 5. Shell protection level: If the applicable environment of the pressure switch is a flammable and explosive hazardous location, the shell protection level should be slightly higher, which is within the scope of explosion protection. Summary: The above is the content of the pressure switch model introduced by everyone. I hope to help you effectively. For more information, please pay attention to this website. What, the decoration still uses his own money? ! The Qi family is decorated in installments, with an ultra-low annual interest rate of 3.55% and a maximum loan of 1 million. Apply now to enjoy the discount If you are interested in brand cooperation, content cooperation, and advertising of this website, please send an email to :. Pressure switch Schneider switch exquisite switch stickers explosion-proof switch Women'S Tote Bag,Big Tote Bag,Designer Tote,Shoulder Tote Bag GUANGZHOU KOEDS LEATHER LIMITED , https://www.kodes-bag.com
