Digital guide
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Yokogawa GCRV-GBARS88N0 High-performance Control Valve Positioner
Technical Specifications:
- Input Signal: 4-20mA DC current signal, input impedance 250Ω.
- Output Signal: Pneumatic signal, output pressure range 0.02-0.1MPa (0.2-1.0kgf/cm²).
- Positioning Accuracy: ±0.5% of full stroke, ensuring precise control of the valve opening.
- Hysteresis: ≤0.3%, with good control repeatability.
- Response Time: ≤1 second, which can quickly respond to changes in the control signal.
- Working Voltage: 24V DC, power consumption is 12mA.
- Working Temperature: -20℃ to 70℃, suitable for most industrial working environments.
- Protection Rating: IP65, dustproof and waterproof.
Detailed content
- Functional Characteristics:
- It has an automatic calibration function, which can automatically detect the zero point and full – scale of the valve without manual intervention, reducing the workload of debugging.
- It supports split – range control, which can realize the separate control of the opening and closing of the valve, and is suitable for complex process control occasions.
- The built – in diagnostic function can monitor the working status of the positioner and the valve in real – time, and send an alarm when faults such as air leakage and valve jamming occur.
- It has a high – speed and stable signal conversion function, which can ensure that the output pneumatic signal accurately tracks the input current signal.
- It is compatible with a variety of control valves, and can be matched with linear, equal percentage, and quick – opening control valves.
- Application Scenarios: It is widely used in the control of various control valves in the petroleum and chemical industry, such as the flow control of raw material feeding pipelines and the pressure control of reaction kettles; the control of steam and water valves in the power industry; the control of material flow valves in the food and pharmaceutical industries; and the control of various process valves in the metallurgical and papermaking industries.
