Krympress reports:
What is an excessive pressure converter
Excessive pressure converter (or pressure sensor) is a device designed to measure the pressure of the working environment (gas or liquid) and convert it into an electrical signal. This signal can further be transmitted to automation, control or regulation systems.
Modern pressure sensors have high accuracy and reliability, which makes them indispensable in various fields of industry. Technological progress made it possible to create devices that can work in extreme conditions, including high temperatures and aggressive media.
The principle of operation of the device is based on the deformation of the sensitive element under the influence of pressure. Depending on the design, the sensor can work on the basis of piezistinguistic, capacitive, inductive or other methods for converting pressure into an electrical signal.
Areas of application
Excessive pressure converters are widely used in various industries, among which:
- Oil and gas industry — Pressure control in pipelines, tanks and wells.
- Energy — Monitoring of pressure in steam and water systems.
- Automobile industry — Control of oil pressure, fuel and hydraulic fluids.
- Chemical industry — measuring the pressure of aggressive environments.
- medicine — use in medical devices, such as devices for artificial ventilation and blood pressure monitors.
- water supply and heating systems — Monitoring the pressure of water and coolants.
The safety of industrial facilities largely depends on the exact control of pressure parameters. Overload or sharp pressure surges can lead to emergency situations, which makes the use of pressure converters a prerequisite for the operation of equipment.
Types of excessive pressure converters
Pressure converters differ in terms of work, design and purpose. Main types:
- Analog converters -Give a signal in analog format (for example, 4-20 mA or 0-10 V). Used in systems where continuous pressure tracking is required.
- Digital converters -transmit data in digital format (via RS-485, Modbus, etc.), providing more accurate measurements and the ability to integrate into automated systems.
- Membrane converters — They have a sensitive membrane, which responds to the pressure of the working environment. They are used in aggressive environments.
- Piezoresis converters — work on the basis of changing resistance under the influence of pressure. Often used in accurate measuring systems.
- Capsular converters — Designed to measure low pressure values, for example, in ventilation systems.
- Hydrostatic converters — are used in liquid media, such as water supply or chemical industry.
One of the key factors when choosing a pressure converter is its resistance to external influences. Some models are able to work in conditions of high humidity, vibration and even radioactive radiation.
How to choose an excess pressure converter
When choosing a pressure converter, several key parameters should be taken into account:
Pressure measurement range:
- It is determined by the working conditions and the maximum possible pressure of the environment.
The type of working environment:
- gas, liquid or aggressive chemicals.
Type of output signal:
- analog (4-20 mA, 0-10 V) or digital (Modbus, Can, RS-485).
The material of the case and the membrane:
- Corrosion-resistant materials for work in aggressive media.
Temperature range:
- resistance to high or low temperatures.
Degree of protection:
- Protection against moisture and dust (IP65, IP67 and higher).
Connection method:
- threaded, flange or other mount.
Before buying a converter, it is important to consider operating conditions. For example, if the sensor is installed in an inaccessible place, it makes sense to choose a model with the possibility of remote monitoring and diagnosis.
Excessive pressure converter, experts emphasize — an important element of modern measuring and automated systems. Its choice depends on the specifics of application, such as the working environment and the required accuracy. A competently selected sensor allows you to effectively control processes and increase the safety of equipment operation.
The introduction of modern technologies in the production of pressure converters made it possible to achieve high accuracy of measurements. The latest models are equipped with self -diagnosis and can transmit data in real time, which is especially important for critical systems.
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