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| Principle: | Magnetic Sensors |
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lass level indicator with stainless steel base
A.[Features of Magnetic Level meter]
Easy Reading
The Water Tank Level meter with red indicator,so it's easy reading the water level;
Lower Cost For You
The Water Tank Level meter with lower cost compared with the radar or ulreasonic level meter;
High Standard Working conditions
The Water Tank Level meter with 350ºC max temperature and 9.6Mpa max pressure for reference;
Easy Installation
The level meter with three type installation:top,bottom and side mounted for you.
B.[Parameters]
| Water Tank Level meter---Basic production informance | |
| Range | 0~3 meters |
| Material | M1-SS304 |
| M2-SS316L | |
| M3-UPVC | |
| M4-UPP | |
| M5-PTFE | |
| Output | AH-Upper alarm |
| AHL-Lower alarm | |
| AHL-Upper and lower alarm | |
| Installation | S-side-mounted |
| T-top-mounted | |
| L-low-mounted | |
| Sensor Temperature | Normal:-10~200ºC |
| M-max temperature:-10~350ºC | |
| PArameter | Material | Range | Tem(ºC) | Pressure | Density | Viscosity |
| Standard | 304 | 300~8000 | -20~150ºC | 0~2.45 | 0.5~2 | ≤0.04 |
| H-pressure | 300~8000 | -20~150ºC | 2.45~9.6 | 0.5~2 | ≤0.04 | |
| H-temperature | 300~8000 | -20~350ºC | 2.45~9.6 | 0.5~2 | ≤0.04 | |
| Low-tem | 300~2500 | >-40ºC | 0~2.45 | 0.5~2 | ≤0.04 | |
| LPG | 300~15000 | -20~150ºC | 0~2.45 | 0.45~0.7 | ≤0.04 | |
| Corrosive proof | 316L | 300~8000 | -20~150ºC | 0~2.45 | 0.5~2 | ≤0.04 |
| Corrosive proof | PP | 300~5000 | -20~100ºC | 0~0.6 | 0.5~2 | ≤0.04 |
| Corrosive proof | U-PVC | 300~5000 | -20~60ºC | 0~0.5 | 0.5~2 | ≤0.04 |
| Corrosive proof | ABS | 300~5000 | -20~120ºC | 0~0.6 | 0.5~2 | ≤0.04 |
| Corrosive proof | 316pipe | 300~15000 | -20~100ºC | 0~1.0 | 0.5~2 | ≤0.04 |
| Corrosive proof | PE | 300~5000 | -20~40ºC | 0~0.6 | 0.5~2 | ≤0.04 |
| Warming type | 304 | 300~15000 | -20~150ºC | 0~2.45 | 0.5~2 | ≤0.05 |
| H-viscosity | 304 | 300~8000 | -20~150ºC | 0~2.45 | 0.5~2 | ≤0.05 |
| Sanitary | 304 | 300~8000 | -20~150ºC | 0~1.6 | 0.5~2 | ≤0.05 |
| Q: What is a magnetic level gauge? |
| A: A magnetic level gauge is a local indicator used to measure the liquid level inside a vessel. It operates on the principles of buoyancy and magnetic coupling, providing a clear level reading through the color change of flippers on a graduated external panel. |
| Q: How does a magnetic level gauge work? |
| A: It contains a float with permanent magnets inside a main chamber. The float rises and falls with the liquid level. Outside the chamber, there is a series of magnetized flippers (often bi-colored, e.g., white and red) mounted on a pivot. The magnetic field from the float causes the flippers to rotate, changing their color (e.g., from white to red) to indicate the current liquid level. |
| Q: What are the main advantages of a magnetic level gauge? |
| A: Key advantages include: clear and intuitive reading, visible from a distance; operates without external power (for local indication); good sealing, suitable for flammable, toxic, or high-pressure media; relatively simple structure and easy maintenance. |
| Q: What types of liquids can it measure? |
| A: It can measure various liquids, including water, oil, acids, alkalis, solvents, etc. However, the density of the medium must be greater than that of the float to ensure buoyancy. For high-viscosity or crystallizing liquids, insulation or heating jackets may be required. |
| Q: What should be considered during installation? |
| A: It must be installed vertically to allow the float to move freely. The flange connections on the vessel should avoid areas of agitated fluid or other obstructions. During installation, ensure the zero point (LL) of the indicator scale aligns with the centerline of the vessel's lower connection nozzle. |
| Q: How is a magnetic level gauge maintained? |
| A: Perform regular checks to ensure the flippers rotate normally without sticking. For scale-forming or dirty fluids, clean the chamber and float periodically to prevent the float from getting stuck. Inspect all sealing points for leaks. |
| Q: Can it output electrical signals for remote monitoring? |
| A: Yes. By adding a reed switch or transmitter assembly. The movement of the float activates these switches, converting the level signal into standard electrical signals (like 4-20mA) for transmission to a control room for remote monitoring and alarm. |
| Q: Is a magnetic level gauge explosion-proof? |
| A: The basic model (local indication only) is intrinsically safe as it requires no power. However, if equipped with a transmitter (which requires power), the entire assembly must have appropriate explosion-proof certification (e.g., Ex d, Ex ia) for the hazardous area where it is installed. |
| Q: How do I choose the right magnetic level gauge for my application? |
| A: Selection considerations include: process fluid properties (corrosiveness, density, temperature, pressure), required pressure rating and flange standards, material requirements (chamber and float material, e.g., 304SS, 316SS, PP), length (measuring range), and the need for remote transmission or alarm functions. |
| Q: What should I do if the flipper display is discontinuous or shows a "jumbled" pattern? |
| A: This usually indicates a stuck float or weakened magnetism. Possible causes include: debris blocking the float, fluid solidification at low temperatures, or physical impact damaging/demagnetizing the float. Isolate and clean the gauge, and check if the float moves freely. |
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