Suitable for measuring the pressure of liquids, gases, or vapors, high and low limit alarms can be achieved by comparing the measured pressure value with the set value. The output signal is a passive dry contact signal (SPDT). It is commonly used for: 1. Air compressor start stop control; 2. Pipeline pressure high and low limit alarm, interlock start stop pump, etc. The pressure switch directly outputs the switch signal, and the function can achieve pressure transmitter+PLC/control instrument output switch control. The structure is simple, highlighting its advantages in on-site control in small-scale control. This product has the following features: ● Fully welded diaphragm, zero leakage ● Mechanical principle, no need for power supply ● High quality micro switch, small dead zone ● Diverse process interfaces, customizable flange threads ● Adjustable switching difference
Product Details
product overviewProduct overview
The pressure sensing structure of the LPS-S2 series diaphragm pressure switch adopts a fully welded stainless steel diaphragm. The entire design is simple and easy to use, with few fault points, and can effectively prevent liquid leakage and misoperation. It has an adjustable switching difference function and can be used for pressure range control and pressure interval alarm; Widely used in various industries such as petroleum, chemical, metallurgical, power, sugar, pharmaceutical, etc. that require pressure control.
measuring principleprinciple
Diaphragm pressure switch is a mechanical pressure switch that uses the mechanical deformation of the diaphragm to achieve the function of controlling contact closure and disconnection. When the pressure of the measuring medium changes, the diaphragm will produce corresponding displacement. The displacement of the diaphragm is transmitted to the micro switch through the transmission component. When the displacement stroke reaches the set value, the micro switch will be pushed, causing the contacts of the micro switch to close or open as a state variable. Adjustable pressure switches can control pressure within a fixed value or range by adjusting the stroke relationship between transmission components and micro switch contacts, in order to achieve control objectives.
performance indexTECHNICAL PARAMETERS
Measurement medium: gas or liquid (in highly corrosive environments, communication is required) Shell material: die cast aluminum, epoxy resin coating, outer cover with sealing gasket NEMA protection level: meets NEMA 4X requirements Set value accuracy: ± 0.5% Repeatability accuracy:<1% Pressure interface: M20 * 1.5 external thread; Special interfaces can be customized Electrical interface: M20 * 1.5 internal thread; Special interfaces can be customized Switch output: a single pole double throw (normally open+normally closed) output; Environmental temperature: -40 ℃ to+70 ℃ Environmental humidity: 5% to 95% Cycle life: 1 million cycles Protection level: IP67 Explosion proof rating: Exde IIC T6 Gb Dust explosion-proof: ExtD A21 IP66 T80 ℃; Contact capacity: Conventional type: 380V, 15A; Explosion proof type: 380VAC, 5A;