
( Brand: Fisher ), ( Manufacturer Part Number: 35821 ), ( Part Type: Unit )
The Fisher Air Positioner 4-20mA (Product ID: 35821) is a versatile and reliable pneumatic actuator designed for precise control and positioning applications. This 4-20mA actuator is powered by compressed air and features a 3/8-inch NPT threaded female air inlet and a 1/2-inch NPT threaded female air outlet.
The Fisher Air Positioner 4-20mA is equipped with a 12-position reversing solenoid valve, which allows for precise positioning and holds the valve in place once the desired position is reached. The actuator has a 1-inch stroke length and can generate up to 100 pounds of force, making it suitable for a wide range of applications.
The actuator is constructed using high-quality materials, including a robust aluminum housing and stainless steel components, to ensure durability and longevity in harsh environments. It is also equipped with a built-in air filter to prevent debris from entering the actuator and affecting its performance.
The Fisher Air Positioner 4-20mA is easy to install and can be integrated into a variety of control systems, including PLCs and DCSs. It has a 4-20mA input signal for position control and is compatible with a wide range of analog input devices. The actuator also features a built-in diagnostic LED indicator, which provides real-time status information on the actuator's operation.
Overall, the Fisher Air Positioner 4-20mA is a high-quality and reliable pneumatic actuator that provides precise control and positioning for a wide range of applications. Its durable construction, easy installation, and compatibility with various control systems make it an excellent choice for industrial and commercial applications.
The Fisher 35821 Air Positioner with 4-20 mA DC Output is a device used for controlling and positioning air cylinders in various industrial applications. Let's examine its pros and cons:
Pros:1. Adjustable: The Fisher Air Positioner offers a wide range of adjustability, with an adjustable stroke of 0 to 100% and a maximum air flow of 90 SCFM. This makes it suitable for handling a variety of loads.
2. Accurate: The positioner provides precise positioning with a resolution of 0.1% of full scale, ensuring consistent results in your industrial processes.
3. Easy to Install: The 35821 Air Positioner is designed for easy installation, with a simple wiring harness and a compact size that fits into limited space.
4. Durable: The device is built to withstand harsh industrial environments, with a rugged construction and corrosion-resistant materials.
Cons:1. Price: Compared to some other positioners, the Fisher 35821 Air Positioner may be more expensive due to its high-quality components and advanced features.
2. Limited Input Signals: The positioner only accepts 4-20 mA DC input signals, which may limit its compatibility with certain control systems.
Recommendation:If you require a highly accurate, adjustable, and durable air positioner for your industrial application, the Fisher 35821 Air Positioner is an excellent choice. Its advanced features and high-quality construction make it a worthwhile investment, despite its higher price point. However, if your budget is limited or if you need a positioner that accepts a wider range of input signals, you may want to consider alternative options that better suit your specific requirements.
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