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Welcome to this hands-on tutorial on Pneumatic Control Valve Calibration! 🛠️ This video provides a comprehensive, step-by-step guide for technicians and engineers on how to accurately calibrate a control valve and its positioner (or I/P converter). Mastering control valve calibration is essential for maintaining accuracy and stability in any PID control loop. We cover the setup, the tools, and the critical adjustments required. In this detailed procedure, you will learn: The Required Equipment and proper setup (Process Calibrator, Multimeter, Air Supply). The importance of Process Isolation for safety and accurate calibration . How to perform Zero and Span adjustment by applying 4mA and 20mA signals. The complete check for the valve stroke and position indicator. 📺 Video Chapters (Jump to the step you need): 0:00 - Introduction & Why Control Valve Calibration is Critical 0:45 - Required Equipment and Setup 1:30 - Step 1: Process Isolation and Safety Check 2:15 - Step 2: Regulating Instrument Air Supply 3:00 - Step 3: Connecting the Process Calibrator (Source Current Mode) 4:10 - Step 4: Zero Adjustment (4mA) - Verify 0% Stroke 5:20 - Step 5: Span Adjustment (20mA) - Verify 100% Stroke 6:30 - Quick Check and Final Connection 👉 Click to subscribe for more essential Industrial Instrumentation and Maintenance training!