There are five common signal output types for sensors in level switches: relay output, two-wire output, transistor output, contactless output and NAMUR output. Among them, relay output is the most widely used, transistor output and contactless output are rarely involved, and two-wire output and ...
Intro The air separation unit is a supporting project of public works, providing nitrogen, oxygen and argon for construction for each unit, power station and auxiliary facilities. The main product of nitrogen is used for purging, sealing, displacement and security. The air cooling tower is an air ...
Working principle： When the fluid flows through the orifice plate of the orifice plate flow meter device, the cross-sectional area decreases, the velocity increases, and the corresponding pressure decreases, and the degree of reduction is proportional to the fluid velocity of the flow state. ...
Ultrasonic level meter is widely used for level measurement in chemical industry, water treatment, water conservancy, food, grain and other industries. The product has the characteristics of safety, cleanliness, high precision, long life, stability and reliability, easy installation and maintenance, ...
Fault category: Hardware failure Operating conditions: The liquid level display suddenly fluctuates several times, and the display returns to normal after zero correction. Fault symptom description: During the process control and monitoring panel, it was found that the liquid level display of the ...
Fault category: The liquid level indication is inaccurate and fluctuating Operating conditions: Measure the depth of the liquid level of the initial rainwater tank (usually the main medium is road rain and steam drizzle), normal temperature, normal pressure, and atmospheric exposure. When the liquid ...
Working principle The switch structure of float level controller is mainly designed and produced based on the principle of buoyancy and static magnetic field. The position of float ball with magnet (referred to as float ball) in the measured medium is affected by buoyancy. In the place of use, the ...
Summarization Vortex flowmeter is a flow measurement instrument based on the Karman vortex flowmeter principle, also known as vortex flowmeter or Karman vortex flowmeter. It is mainly used to measure the volume flow of gas, steam or liquid in various pipelines. It is a new type of flow meter ...
Piezoresistive pressure transmitter as below picture is characterized by its small size and simple structure. The sensitivity coefficient of diffusion resistance is dozens of times that of metal strain gauge, and can directly measure small pressure changes. In addition, piezoresistive pressure ...
The device that can detect the pressure value and provide a remote signal is collectively referred to as the pressure transmitter, which is a sensor commonly used in industrial automation process control to measure the pressure of a gas or liquid, and convert this pressure value into a measurable ...
2.4 Field configuration funetion Basic functions (no password required) 2.5 Precession flowmeter mode setting instructions 1.Gas volume (Gas Qv) A.Measure the working volume as follows Density: Set to 20'℃ density (not involved in the calculation) Pressure: 0.0KPa Temperature:20℃ B.Measure the ...
Difficulties of International Explosion-proof Certification 1. Data: All data must be translated into English, IEC or EN clauses, and each clause must be reasonably explained. The number of rectifications of data during the certification cycle far exceeds the domestic explosion-proof workload. Note: ...
