NEWS CENTER
Installation and Maintenance Guide for Non-Contact Level Transmitters
Time：
2025-07-07
Non-contact level transmitters, such as radar and ultrasonic types, are widely used in various industries for measuring the level of liquids and bulk solids. These devices offer significant advantages including no physical contact with the medium, high accuracy, and minimal maintenance. However, proper installation and regular checks are essential to ensure long-term performance and reliability.
🔧 Installation Best Practices
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Choose the Right Mounting Location
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Install the transmitter at the top center of the tank or vessel, away from walls, ladders, agitators, or filling streams that may cause false echoes.
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Ensure there is a clear, unobstructed path between the sensor and the material surface.
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Correct Orientation
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The sensor should be mounted vertically, facing directly downward for the most accurate measurement.
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Use an adapter flange or aiming device if mounting at an angle is necessary.
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Avoid Interference
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Prevent direct exposure to vapor inlets, steam jets, or dust accumulation.
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For radar types, ensure the antenna is clean and free from buildup.
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For ultrasonic types, avoid temperature gradients and turbulent surfaces.
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Seal the Enclosure
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Make sure the transmitter housing is properly sealed to protect against moisture, dust, or corrosive gases.
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Power and Signal Wiring
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Follow the manufacturer's guidelines for wiring and grounding.
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Use shielded cables and proper cable glands to reduce electrical interference.
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🛠 Maintenance and Troubleshooting
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Regular Inspections
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Visually check the sensor and housing for physical damage, contamination, or corrosion.
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Inspect wiring and connections periodically for signs of wear or water ingress.
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Cleaning
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Clean the sensor surface, antenna, or diaphragm gently with a soft cloth and appropriate cleaning agent.
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Do not use sharp tools or high-pressure sprays that could damage the sensor.
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Software Calibration
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Periodically verify the zero and span settings.
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Use the device’s software or HART communicator to check configuration and signal stability.
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Monitor Diagnostics
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Many modern transmitters include built-in diagnostic functions that provide information about signal quality, blockage, or echo loss.
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Use this data to detect early signs of failure or signal degradation.
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Firmware Updates
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Keep the device firmware up to date if applicable. Manufacturers often release performance improvements and new features.
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✅ Summary
Non-contact level transmitters offer reliable, accurate level monitoring in demanding environments. With proper installation and simple periodic maintenance, these instruments can provide years of trouble-free operation. Always refer to the manufacturer’s manual for specific guidelines and ensure safety procedures are followed during installation or servicing.
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Next： Principles and Methods for the Maintenance and Overhaul of Level Instruments
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