Magtech Magnetic Level Gauges: Common Operational Issues and Solutions

Magtech Magnetic Level Gauges: Common Operational Issues and Solutions

Introduction

Magnetic level gauges are widely used in various industries to measure the precise levels of liquid in tanks and vessels. Magtech, a renowned manufacturer, offers a range of reliable and accurate magnetic level gauges. However, like any equipment, these gauges may encounter operational issues. In this article, we will explore some common problems faced with Magtech magnetic level gauges and provide effective solutions to resolve them. By understanding these issues and their solutions, users can ensure the smooth and accurate functioning of their gauges.

1. Inaccurate Readings

One of the most common issues with magnetic level gauges is inaccurate readings. This can be caused by several factors, including:

a) Incorrect installation: Improper installation can lead to misalignment of the float and magnet assembly, resulting in inaccurate readings. Ensure that the gauge is installed per the manufacturer's guidelines, with proper alignment and calibration.

b) Dirty or damaged float: Accumulated dirt or damage to the float can hinder its movement, causing inaccurate readings. Regularly inspect and clean the float to remove any debris or sediment buildup.

c) Magnetic interference: External magnetic fields can interfere with the function of the magnetic level gauge, leading to inaccurate readings. Keep the gauge away from strong magnetic sources or employ magnetic shielding techniques if necessary.

Solution: To address inaccurate readings, first, ensure proper installation and alignment according to the manufacturer's instructions. Clean the float regularly, and if damaged, replace it with a new one. If magnetic interference is suspected, relocate the gauge or implement magnetic shielding measures.

2. Float Sticking or Jamming

Another frequent issue encountered with magnetic level gauges is the float sticking or jamming at certain levels. This can result in unreliable readings and operational disruptions. The following factors can contribute to float sticking or jamming:

a) Buildup of sediments or deposits: Over time, sediments or deposits can accumulate on the float, causing it to stick or jam. This is especially common when gauges are used in applications with liquids containing high levels of contaminants. Regular cleaning and maintenance of the float can prevent this issue.

b) Improper float design or material: Incorrect float design or unsuitable materials can lead to sticking or jamming problems. The selection of the appropriate float material, such as stainless steel or corrosion-resistant polymers, depending on the liquid being measured, is crucial to avoid this issue.

c) Insufficient float buoyancy: If the float does not have adequate buoyancy, it can become submerged or struggle to move freely, resulting in sticking or jamming. Ensure that the float is properly sized and calibrated for the specific application requirements.

Solution: To resolve float sticking or jamming, regular cleaning and maintenance are vital. Ensure that the float material is compatible with the liquid being measured. If necessary, consider upgrading to a different float material. Verify that the float has the correct buoyancy for the specific application and adjust if required.

3. Leakage or Sealing Problems

Leakage or sealing problems can compromise the efficiency and accuracy of magnetic level gauges. Some common causes of leakage or sealing issues include:

a) Damaged or worn-out gaskets: Gaskets play a crucial role in providing a reliable seal between the gauge chamber and the process fluid. If the gaskets are damaged or worn-out, leakage can occur. Regularly inspect gaskets for wear and tear, and replace them as necessary.

b) Improper installation or sealing: Inadequate installation or incorrect sealing techniques can lead to leakage. Ensure that the gauge is correctly installed with appropriate gaskets, seals, and fittings, as recommended by the manufacturer.

c) Process fluid compatibility: Certain liquids can degrade gasket materials, causing leakage. Verify that the gaskets used are compatible with the specific process fluid to prevent this issue.

Solution: Conduct regular inspections of gaskets and replace them if damaged or worn-out. Follow proper installation procedures, including selecting suitable gaskets, seals, and fittings. Ensure compatibility between gasket materials and the process fluid to prevent leakage or sealing problems.