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Landfill Site Submersible Leachate Level Transmitters

Reliable leachate level measurement in landfill sumps & wells. Find corrosion-resistant submersible transmitters with durable cables & stable 4-20mA signals.

This category features submersible level transmitters engineered specifically for the demanding environment of landfill leachate monitoring. These instruments provide continuous, reliable level measurement crucial for managing leachate collection systems, ensuring environmental compliance, and facilitating automated control processes. Designed for long-term immersion in chemically aggressive liquids, key features include corrosion-resistant body and diaphragm materials (such as Stainless Steel 316, PVDF and ceramic), robust cable construction with appropriate jacketing, and stable 4-20mA analogue outputs suitable for integration with standard landfill site instrumentation and SCADA systems.

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Find out more about Landfill Site Submersible Leachate Level Transmitters to determine which product options and capabilities will best meet your application requirements.

Submersible level transmitters designed explicitly for landfill leachate applications face unique challenges due to the aggressive chemical nature of the environment and the demands of long-term immersion. These instruments provide continuous level measurement by being fully submerged within leachate collection sumps, monitoring wells, or extraction points integral to landfill site management and environmental protection infrastructure. The primary function involves converting the hydrostatic pressure exerted by the leachate column above the sensor into a standardised 4-20mA analog current signal, suitable for transmission over long distances common on expansive landfill sites to control panels, SCADA systems, or data loggers.

The selection of materials is paramount for ensuring operational longevity and reliability in contact with highly corrosive and variable leachate compositions. Robust body housings, often constructed from materials like PVDF or specific grades of stainless steel chosen for their proven resistance to chemicals found in landfill run-off, are essential. Equally critical is the diaphragm material; ceramic diaphragms are frequently specified over metallic alternatives due to their superior chemical inertness and resistance to abrasion from suspended solids sometimes present in the leachate.

The integrity of the submersible electrical cable and its sealing arrangement is fundamental to preventing leachate ingress, which would rapidly lead to sensor failure. Cables typically feature durable outer jacketing materials such as FEP, PVC or PUR, selected for their resistance to chemical attack, physical abrasion during installation or removal, and UV exposure if applicable. Integrated vent tubes within the cable provide atmospheric pressure reference for gauge pressure measurements, and these require careful consideration regarding protection against moisture or contaminant ingress, often employing hydrophobic filters at the termination point. Robust cable sealing glands and potted electronics further enhance protection against the demanding submerged conditions.

Accurate and stable level data is crucial for managing leachate extraction systems effectively, preventing overflow situations, and meeting regulatory compliance monitoring requirements. Transmitters intended for landfill applications must provide reliable performance with minimal drift over extended periods, reducing the need for frequent and often difficult retrieval for calibration or maintenance. Design features such as non-clogging nose cones or flush diaphragm sensors help mitigate issues related to sludge or solids build-up, ensuring the hydrostatic pressure measurement remains accurate.

The industry-standard 4-20mA output signal offers significant advantages in landfill environments, including high noise immunity, the ability to transmit signals over considerable distances without degradation, and compatibility with intrinsically safe circuit designs often required in potentially hazardous areas where methane gas may accumulate. Some transmitters may also incorporate surge protection circuitry to guard against lightning strikes, a common risk in exposed landfill locations. Integration with site-wide monitoring and control systems allows for automated pump control for leachate removal, alarms for high-level conditions, and continuous data logging for environmental reporting.

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Wirelessly Measure & Log 4-20mA

Use this battery powered wireless 4-20mA wireless transmitter to transmit readings to a receiver connected to USB, RS485, RS232, cellular network or analog output

Use this battery powered 4-20mA wireless transmitter to transmit readings to a receiver connected to USB, RS485, RS232, cellular network or analog output

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