Involves attaching the positioner using studs and hex nuts to the back of the housing.
Increase the input signal to the maximum (e.g., 15 psig). Adjust the flapper assembly or span adjustment screw until the valve reaches the full intended travel.
Standard ranges include 0.2 to 1.0 bar (3 to 15 psig) or 0.4 to 2.0 bar (6 to 30 psig). Fisher 3560 Valve Positioner Manual Pdf
Set the input signal to its minimum (e.g., 3 psig) and adjust the nozzle until the output gauge shows the valve is at its starting position.
Understanding the performance limits of the 3560 series is critical for safe operation: Involves attaching the positioner using studs and hex
The provides two primary mounting methods:
During installation, it is vital to correctly set the based on the actuator travel. For travels between 20 and 30 mm, the long portion of the plate's slot should be closest to the positioner. Calibration Steps for the 3560 Standard ranges include 0
The Fisher 3560 (often cited alongside similar legacy models like the 3582 or 3570) is a single-acting pneumatic positioner. It is typically used with diaphragm-actuated, sliding-stem control valve assemblies to modulate supply pressure and maintain a specific valve plug position. Key Technical Specifications
The Fisher 3560 series pneumatic valve positioners are foundational components in industrial control systems, designed to ensure precise valve stem positioning proportional to a pneumatic input signal. Accessing the is essential for technicians to perform accurate installation, calibration, and long-term maintenance. Overview of the Fisher 3560 Positioner
Maximum pressures can reach up to 10.4 bar (150 psig) depending on the specific configuration, while the minimum is typically around 2.4 bar (35 psig).