Siemens SITRANS LVS300 Vibrating Rod Point Level Switch

Key Features of the SITRANS LVS300

The LVS300 series has several benefits, some of which we have listed for you below:

• Detects high, low, or demand levels of coarse solids and granulates
• Operates in process temperatures between -40...150 °C and up to 16 bar pressure
• Adjustable sensitivity for handling bulk solids with buildup potential
• Available rod extension up to 4 meters (157 inches) for deep applications
• Compact design with top, side, or angle mounting capability
• Ideal for challenging applications in industries like cement, food, and plastics.

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Application Possibilities of the SITRANS LVS300

The SITRANS LVS300 is designed for versatile use in various industries, effectively detecting high, low, or demand levels of coarse solids and granulates in multiple settings. Its vibrating rod design allows it to operate effectively in environments where traditional forks may struggle due to bridging or buildup.

With a robust construction that withstands heavy materials, the LVS300 is ideal for monitoring materials in silos, containers, and hoppers, making it a reliable choice for applications across several sectors.

• Marine Industry
• Dry bulk solids detection
• Ideal for challenging materials
• Effective in bins, silos, or hoppers
• Suitable for cement, food, plastics
• Handles materials like lime, molding sand, milk powder, flour, salt, and plastic granules.

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How does the SITRANS LVS300 Operates?

The SITRANS LVS300 utilizes a piezo-electrically stimulated oscillating rod that vibrates at its mechanical resonance frequency. When the probe is covered by bulk material, the resulting damping effect is detected electronically, triggering a corresponding signal output. This innovative design not only facilitates accurate level detection but also provides a self-cleaning effect, as the continuous oscillation of the rod helps to prevent material buildup. This ensures reliable performance in various applications, even in challenging environments.

See the drawing here:

1. Pipe extension
2. Optional sliding sleeve
3. Compact version or pipe extension
4. Compact version
5. Application in down pipe.

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Essential Installation Guidelines for the SITRANS LVS300 Level Switch

Proper installation of the SITRANS LVS300 is crucial for optimal performance and longevity. It is vital to avoid bending, shortening, or extending the oscillating rod, as these actions can irreparably damage the device.

When mounting the unit from the side, ensure that the cable glands are directed downward to prevent water ingress into the housing; the housing can be rotated against the threaded connection after mounting to achieve the correct orientation. Sealing the process thread with Teflon tape is recommended in pressure applications.

For maintenance considerations, it’s advisable to grease the lid screws in corrosive environments, such as those near coastal areas. It's important to note that the switching point varies with the type of bulk material; heavy materials will trigger the signal output when just a few millimeters cover the oscillating rod, while lighter materials will require coverage of several centimeters before activation.

See the drawing here:

1. Observe max. torque
2. Empty detector
3. Full detector
4. Pipe extension
5. 1½" sliding sleeve (Switch point can be set.)
6. Bulk material slides down more easily if the device is mounted with inclination (recommended)
7. Compact version or pipe extended
8. Sensitive area
9. Steel angle in case of high mechanical loading (approx. 200 mm (7.87") distance)
10. CORRECT: Vibrating rod leads into the product
11. WRONG: Socket too long: material chokes socket.

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