What Is the Measuring Range of Electromagnetic Flow Meter?
Struggling to select the right mag meter size? The secret lies in matching pipe flow rates – not just pipe diameter. Standard electromagnetic flow meters measure 0.3-10 m/s velocity (0.98-32.8 ft/s), with actual flow range determined by pipe size. For a DN100 (4") pipe, this equals 8.5-850 m³/h (50-5000 GPM). Measurement accuracy degrades below 0.3 […]
What Causes Errors in a Magnetic Flow Meter?
Your mag meter was working perfectly yesterday – why is it showing erratic numbers today? Small installation oversights cause 80% of accuracy issues. Magnetic flow meter errors stem from: 1) Improper grounding (50% of failures), 2) Partially filled pipes (air bubbles disrupt readings), 3) Electrode coating (insulating buildup blocks signals), 4) Uncalibrated zero point, 5) […]
How Do I Reset My Electromagnetic Flow Meter?
Did your mag meter suddenly stop giving reliable readings? Before you reset, know this: factory resets erase ALL custom settings. To safely reset an electromagnetic flow meter: Power off, hold both arrow buttons while powering on, wait for "FAC" display (3-5 sec), press Enter to confirm, then re-enter basic parameters (pipe size, units, K-factor). Avoid […]
How to Choose the Right Flow Meter for Your Application: Key Factors to Consider
Struggling to select the perfect flow meter? The wrong choice can cost thousands in rework and lost efficiency. Choose a flow meter by evaluating: fluid type (liquid/gas/slurry), flow range (min/max values), accuracy needs (±1% vs ±5%), pressure/temperature limits, pipe size, installation space, and budget. Magnetic suits water/chemicals, ultrasonic for clean liquids, Coriolis for mass flow […]
Magnetic Flow Meter Troubleshooting: Simple Fixes for Common Problems
Frustrated with your mag meter acting up? Let’s walk through quick diagnostics before calling the technician. For basic magnetic flow meter troubleshooting: Check power supply (10-36V DC), verify full pipe (no air gaps), inspect electrodes (clean with vinegar if coated), ensure proper grounding (1-ohm resistance to earth), and confirm fluid conductivity (>5 μS/cm). Most issues […]
Magnetic Flow Meter Pressure Drop: What You Need to Know
Worried about pressure loss in your pipeline? Let’s clear up the confusion around magnetic flow meters. Magnetic flow meters (mag meters) have no moving parts and create minimal pressure drop—typically less than 0.1 bar (1.5 psi) under normal flow conditions. Unlike restrictive devices (orifice plates, venturis), they maintain near-full pipe diameter, preserving system pressure efficiently. […]
Magnetic Flow Meter Piping Requirements: Complete Installation Guide
Installing a magnetic flow meter correctly ensures accurate, long-lasting performance. Magnetic flow meters require specific piping conditions: 1) Full-pipe flow (except special non-full pipe models), 2) 10 pipe diameters straight run upstream (5D downstream), 3) Proper grounding, 4) Conductive fluids (>5 μS/cm), and 5) Correct pipe size matching the meter’s bore diameter. Proper Magnetic Flow […]
Magnetic Flow Meter Operating Principle: Complete Guide
Magnetic flow meters revolutionized industrial flow measurement since their introduction in the 1950s. Understanding their working principle is essential for proper selection and operation. Magnetic flow meters operate on Faraday’s Law of Electromagnetic Induction – when a conductive fluid flows through a magnetic field, it generates a voltage proportional to flow velocity (typically 0.1-10 m/s […]
Magnetic Flow Meter K-Factor: Complete Explanation
Understanding the K-factor is essential for accurate flow measurement and calibration in industrial applications. The K-factor in magnetic flow meters represents the number of electrical pulses generated per unit volume of fluid flow (typically pulses/gallon or pulses/liter), serving as the critical calibration constant that converts the meter’s raw signal into actual flow rate measurements. Magnetic […]
Electromagnetic Flow Meter Installation Guidelines
Proper installation ensures accurate readings and long service life. Many measurement problems stem from ignoring basic installation principles. For optimal performance: 1) Always install in fully filled pipes, 2) Maintain 10 pipe diameters of straight run upstream (5 downstream), 3) Ground properly, 4) Avoid high points and direct sunlight, and 5) Orient based on fluid […]