51.99 GBP
VDO 200mm Fluid Level Sensor 12/24V 10-180 Ohm
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VDO 200mm Fluid Level Sensor – Precision, Reliability, and Versatility
The VDO 200mm Fluid Level Sensor is a high‑performance tubular sensor designed to deliver accurate liquid level measurements across a wide range of industrial applications. Operating on either 12 V or 24 V DC, it offers a resistance output that varies linearly from 10 Ω (empty) to 180 Ω (full), making integration with existing PLCs, SCADA systems, and analog input modules straightforward.
Key Technical Specifications
- Sensor Length: 200 mm (8.27 in)
- Resistance Range: 10 Ω – 180 Ω (linear)
- Operating Voltage: 12 V or 24 V DC
- Temperature Range: –40 °C to +85 °C (standard)
- Material: Stainless steel housing with corrosion‑resistant internal components
- Installation Type: Tubular, threaded or flanged mounting options available
- Calibration: Factory calibrated to ±0.5 % of full scale
- Electrical Isolation: Built‑in isolation for safety and noise immunity
Design Features That Set It Apart
The VDO sensor incorporates several design elements that enhance performance and durability:
- Stainless Steel Construction: The outer housing is made from high‑grade stainless steel, ensuring resistance to corrosion, abrasion, and chemical attack in harsh process environments.
- Linear Resistance Output: A linear relationship between liquid level and resistance simplifies signal processing and eliminates the need for complex calibration curves.
- Compact Footprint: At only 200 mm long, the sensor fits easily into tight piping configurations without compromising accuracy.
- Dual Voltage Compatibility: The ability to operate on both 12 V and 24 V DC provides flexibility for integration with a variety of control systems.
- Robust Sealing: NPT or flanged connections are sealed with high‑quality O‑rings, preventing leaks and ensuring long‑term reliability.
Typical Applications
The VDO 200mm sensor is ideal for monitoring liquid levels in a variety of industrial settings, including but not limited to:
- Agriculture: Irrigation tanks, silos, and storage ponds.
- Food & Beverage: Fermentation vessels, cooling water reservoirs, and process tanks.
- Chemical Processing: Reactors, mixers, and storage containers for acids, bases, and solvents.
- Water Treatment: Clarifiers, filtration units, and sludge dewatering systems.
- Oil & Gas: Fuel tanks, lubricating oil reservoirs, and condensate lines.
Installation Guidelines
Proper installation is critical to achieving optimal performance. Follow these steps for a reliable setup:
- Select the Correct Mounting Method: Choose between threaded (NPT) or flanged connections based on pipe size and pressure rating.
- Align the Sensor: Ensure the sensor is positioned vertically to maintain accurate level measurement; avoid tilting which can introduce errors.
- Secure the Housing: Tighten all fittings to the manufacturer’s specified torque values to prevent leaks and mechanical stress.
- Connect Electrical Leads: Use shielded cables for the resistance output to minimize electromagnetic interference. Connect the sensor to a calibrated analog input module.
- Verify Calibration: After installation, perform a quick calibration check by comparing the sensor’s output against known reference levels.
Maintenance and Troubleshooting
Routine maintenance keeps the VDO sensor operating at peak performance. Key tasks include:
- Visual Inspection: Check for corrosion, mechanical damage, or debris accumulation on the housing and internal components.
- Cable Integrity: Inspect wiring for fraying, cuts, or loose connections that could affect signal quality.
- Calibration Verification: Periodically verify the linearity of the resistance output using a precision ohmmeter.
If the sensor exhibits abnormal readings, consider the following troubleshooting steps:
- Confirm that the supply voltage is within the specified range (12 V or 24 V).
- Check for short circuits or open circuits in the wiring harness.
- Inspect the fluid medium for contaminants that may alter conductivity and affect resistance measurements.
Why Choose VDO?
The VDO brand is synonymous with precision instrumentation. The 200mm Fluid Level Sensor exemplifies this reputation through:
- High Accuracy: Factory calibration ensures minimal drift over time.
- Durability: Stainless steel construction withstands aggressive chemicals and extreme temperatures.
- Ease of Integration: Linear resistance output aligns with standard analog input modules, reducing system complexity.
- Versatility: Suitable for a wide range of fluids—from water to hydrocarbons—across multiple industries.
Conclusion
The VDO 200mm Fluid Level Sensor (12/24 V, 10–180 Ω) delivers reliable, accurate liquid level measurement in demanding industrial environments. Its compact design, robust construction, and straightforward integration make it an excellent choice for engineers seeking a dependable solution for process monitoring and control.
