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VN 5020 Vibrating Fork Level Detector for Bulk Solids

The VN 5020 vibrating fork level switch delivers precise point level detection for dry and free-flowing bulk solids. Designed for industrial silos and process vessels, it ensures reliable monitoring even under heavy mechanical loads. With hygienic stainless steel construction and flexible installation options, this sensor enhances operational safety, prevents overflow, and optimizes material handling efficiency across manufacturing, food processing, and chemical industries.

Category Level
Brand UWT
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Technical details and application highlights

Review the complete description, feature set, and specification details before sending your inquiry.

The VN 5020 vibrating fork level switch is engineered for accurate point level detection in dry and free-flowing bulk solids. Designed for industrial storage and process environments, it ensures dependable monitoring in silos, tanks, and pipelines. With its compact probe and robust construction, this sensor performs reliably even under heavy mechanical stress, making it ideal for demanding industrial applications.

Key Features

The VN 5020 offers a durable vibrating fork design that delivers consistent level detection without calibration complexity. Its stainless steel probe ensures compatibility with hygienic environments such as food and pharmaceutical industries. The device also provides flexible output options, adjustable sensitivity, and fail-safe switching logic, ensuring reliable operation across varying material densities.

Application

This level switch is widely used in industries handling powders, granules, and bulk solids such as cement, grain, plastic pellets, and chemicals. It functions effectively as a full, demand, or empty detector in silos, hoppers, and processing vessels. The VN 5020 improves process automation by preventing overfill, reducing downtime, and ensuring efficient material flow management.

Design & Functionality

The sensor operates using vibration fork technology, where oscillating rods detect material presence based on frequency change. Its short probe arm enhances mechanical strength, making it suitable for installations exposed to high stress or vibration. The larger housing provides additional wiring space, simplifying installation and maintenance.

Total Crossed Beams

The vibrating fork structure ensures stable oscillation and accurate detection even in challenging environments with heavy bulk material loads. This design minimizes false triggering and ensures consistent switching performance.

Beam Pitch Options

The optimized fork spacing allows effective detection across a wide range of bulk densities, ensuring sensitivity for materials above 50 g/l. This versatility supports multiple industrial applications without requiring complex adjustments.

Intrinsic Synchronism

The VN 5020 maintains synchronized vibration behavior, ensuring reliable detection regardless of environmental variations such as temperature or pressure fluctuations. This enhances long-term stability and accuracy.

Operational Advantages

The sensor delivers high operational efficiency by reducing manual monitoring and improving process control. Its robust construction, hygienic compatibility, and explosion-proof options make it suitable for hazardous and regulated environments. With reliable performance and minimal maintenance, the VN 5020 is a dependable solution for modern industrial level measurement.

Parameter

Specification

Measurement PrincipleVibration (Fork)
Measuring TaskPoint level measurement, Interface level measurement
VersionShort extension, Interface detection, Remote version
MediumSolids
Mounting PositionHorizontal, Angled (cone), Down pipes
Ambient Temperature-40°C to +60°C
Process Temperature-40°C to +150°C
Process Pressure-1 bar to +16 bar
Minimum Sensitivity> 50 g/l
Housing TypeStandard, Flameproof, Increased safety
Housing MaterialAluminium
Protection RatingIP66, NEMA Type 4X
Thread Connection≥ R 1 1/2", ≥ NPT 1 1/2"
Flange Connection≥ DN100, ≥ 2"
Hygienic FittingsTriclamp 2"
Wetted MaterialsStainless Steel 304, 316L, 321
Mechanical LoadOscillating rods: 0.6 kN
Immersion LengthMin 165 mm / Max 165 mm
Power Supply19–230V AC, 12.5–36V DC, Universal
Signal OutputRelay SPDT/DPDT, PNP, 4-20 mA, 8/16 mA
ApprovalsCE, ATEX, IEC-Ex, FM, CSA, INMETRO, TR-CU
Ex MarkingsEx t, Ex i, Ex d, Ex de
Hygienic ComplianceFDA, EG 1935/2004
Optical IndicatorLED
FeaturesAdjustable sensitivity, Output delay, Fail-safe logic
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