An I/P converter is used in industrial automation systems to convert electrical current into pneumatic pressure. Through this device, analog 4–20 mA signals are converted into proportional pressure. This enables precise control of pneumatic components such as actuators. At the same time, the operation is carried out without the need for an external power supply. When used together with pneumatic actuated valves, reliable results are achieved.
Difference Between I/P and E/P Converters
Both devices are designed to convert electrical signals into pneumatic output. However, I/P converters operate based on current, whereas E/P converters are triggered by voltage signals. I/P devices typically use a 4–20 mA signal range, while E/P converters operate within a 0–10 V range. It is recommended to select the appropriate type based on the application requirements.
Operating Principle and Performance Structure
I/P converters are based on the principle of electromagnetic force. The incoming current generates an electromagnetic force, which creates a proportional pressure at the pneumatic output. The output pressure is increased or decreased according to the strength of the incoming signal. This mechanism is used in integration with electro-pneumatic positioners. In web tension control systems, signal integrity is maintained through this method.
Where Is It Used?
I/P converters are widely preferred in the petrochemical, energy, food, and automation industries. Their use is particularly recommended in conjunction with pneumatic valve control systems. They are also employed in textile machinery, paper winding systems, and precise position control applications. I/P converters facilitate the integration of compressed air systems with digital control systems, which directly impacts production line efficiency.
Technical Specifications
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Input Signal: 4–20 mA DC
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Output Pressure: Adjustable in the range of 3–15 psi
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Supply Air: Dry and oil-free air is recommended
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Protection Class: IP65, resistant to dust and water
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Response Time: Responds in less than 1 second
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Mechanical Construction: Designed to be compact and resistant to vibration
Why Is It Preferred?
These devices are preferred for their precise pressure control. They also offer the advantage of energy efficiency and are compatible with electric actuator systems. Installation is straightforward, and maintenance requirements are minimal. They provide a high level of accuracy for process control. For more information, the official Unox website can be visited.
IP Converter
