flow meters

Measuring the flow of slurry—whether it’s mining tailings, concrete, or drilling mud—is one of the toughest challenges in industrial instrumentation. While Electromagnetic Flowmeters (EMFs) are the go-to choice for conductive liquids, the abrasive and noisy nature of slurry can turn a standard magmeter into a maintenance nightmare. However, with the right technology and installation, you can achieve reliable, accurate readings. Here is a guide to the common problems engineers face with slurry, and how to solve them.   1. The " Slurry Noise " Problem The Issue: Slurry contains solid particles crashing against the electrodes. This creates massive electrical noise (spikes) on the output signal, making the reading unstable. The Solution: You need a meter with a high-frequency or dual-frequency excitation. Standard DC excitation is too slow; high-frequency excitation "punches through" the noise to get a clean signal.  2. Electrode Coating and Wear The Issue: Sticky slu...

Dear Partners & Friends, As the Chinese New Year is approaching, we would like to inform you of our holiday arrangement: Our company will be closed from February 14 to February 22, 2026 for the Spring Festival holiday . We will resume work on February 23. During the holiday, our business and email response will be temporarily suspended. We will attend to your inquiries, orders and pending matters immediately after we return to work. We wish you and your family a happy, healthy and prosperous Chinese New Year! hashtag # RB hashtag # Flowmeter hashtag # ChineseNewYear #2026

 Measuring abrasive slurries and mineral slags? You’re not alone. While electromagnetic flowmeters (magmeters) excel with clean conductive fluids, real-world industrial slurries push them to the edge. As engineers, we face these recurring pain points: 🔹 Abrasive Wear : Quartz, ore, or slag particles act like microscopic sandpaper—scouring electrodes and liners, causing calibration drift and premature failure. 🔹 Corrosive Assault : Acidic tailings or alkaline slurries devour standard stainless steel electrodes and rubber liners. Material mismatch = leaks or signal loss. 🔹 Scaling & Fouling : Mineral deposits or sludge coat electrodes, creating insulating barriers that block voltage signals—especially in high-solid-content flows. 🔹 Conductivity Limits : Magmeters need ≥5 μS/cm. Slurries diluted with non-conductive solids (sand, coal) often dip below threshold, killing signal integrity. 🔹 Physics Complications :  • Slip velocity between solid/liquid phases skews volume read...

This checklist provides a systematic approach to diagnosing and resolving common issues with magnetic flow meters , aligned with industrial maintenance best practices . A. Preliminary Verification *   Power Supply: Confirm power is within the meter's specified range (e.g., 24 VDC, 110/220 VAC). *  Grounding : Verify the grounding system is perfect. Poor grounding is a leading cause of noise and signal instability. *  Process Status: Ensure the pipe is full and the flow rate is above the meter's minimum cutoff value. B. Meter & Sensor Inspection *   Electrodes: Check for coating, corrosion, or short-circuiting. Clean if necessary. *   Liner: Inspect for damage, wear, or bulging that could expose electrodes. *   Field Coils: Measure coil resistance and compare to factory specification. Look for opens or shorts. *   Cable Integrity: Inspect sensor-to-transmitter cables for damage, moisture ingress, or loose connections. C. Pro...

Is your R&B Instrument Inc. RBFM Series ultrasonic flow meter acting up? Whether it's a blank display , erratic readings, or faulty output, downtime is costly. This step-by-step troubleshooting guide will help you diagnose and resolve the most common issues efficiently and safely.   Issue 1: No Display / Power Failure Step-by-Step Diagnosis: 1.  Step 1: Check Power Supply     *   Use a multimeter to measure the voltage at the flow meter's power input terminals. 2.  Step 2: Inspect Wiring Connections     *   Verify that the wiring to the flow meter's power terminals is correct, secure, and not damaged. 3.  Step 3: Investigate the Power Module     *   If power and wiring are confirmed correct but the display remains off, the internal power module may be faulty. ⚠️ Critical Notes & Safety: *   Voltage Specification: Ensure your power source matches the meter's rating (commonly DC24V or AC220...

In process industries, accurately measuring aggressive, abrasive, high-temperature, or high-pressure fluids is a persistent challenge. Traditional flow meters , especially those with elastomer (e.g., rubber , polyurethane ) or PTFE liners , often struggle with liner wear , chemical attack , temperature limitations , and the nagging issue of leaching . Is there a solution that combines ultimate durability, unmatched chemical inertness, and long-term, stable accuracy? The answer is a definitive yes: the Ceramic Liner Electromagnetic Flow Meter .   Today, we're excited to delve into this innovative technology and share some exciting news: two DN200 RBEF Series Ceramic Liner Magnetic Flow Meters have completed final testing and packaging and are ready for shipment to a customer seeking a reliable solution for their harsh operating conditions.     The Limits of Traditional Liners & The Ceramic Breakthrough   Electromagnetic flow meters (EMFs) are widely valued for...