Hydrostatic pressure transmitters provide an accurate and reliable solution for determining fluid level in a variety of industrial and process applications. These specialized pressure sensors convert the hydrostatic pressure exerted by a liquid column into a proportional electrical signal, typically a 4-20mA current loop output.
LMP307 Submersible Level Transmitter - Submersible level transmitter for measuring liquid level with a 4-20mA current loop or a 0-10V voltage output plus optional ATEX approval for intrinsically safe use in hazardous areas in ranges from 1mH2O up to 250mH2O. The LMP307 is suitable for use on potable water with no leaching, and can be supplied with a drinking water certificate according to DVGW and KTW.
LMK458 Marine Approved Hydrostatic Level Transmitter - Marine approved level transmitter with 4-20mA output for measuring level of contents inside ship ballast, fuel, liquid cargo or wastewater tanks
18.605 G Low Cost Submersible Diesel Fuel and Water Tank Level Sensor - Low cost OEM diesel fuel or water level sensor for installing inside or outside a storage tank. 
LMK351 High Overpressure Flush Level Transmitter - Flush capacitive ceramic pressure sensor for measuring corrosive and viscous liquid level from levels 0.4 metres of water up to 200 mH2O. 
LMK331 Screw-In Ceramic Level Transmitter - Level pressure sensor with semi-flush ceramic diaphragm and stainless steel or PVDF wetted parts in ranges from 0-4 to 600mH2O gauge.
DPT200 Pressurised Tank Level Differential Pressure Transmitter - Pressurised tank liquid level differential pressure cell transmitter for process plant storage.
LMK382 Low Range IP68 Waste Water Level Transmitter - Submersible Low Range waste water level transmitter with intrinsically safe option for monitoring the level of sewage and effluent in water treatment plants.
LMK387 Cleanable Sewage and Sludge Pressure/Level Sensor - Rugged and easily cleanable pressure/level sensor for use with waste water sewage or sludge.
DS200 Combined Hydrostatic Level Switch, Gauge and Sensor - Three in one hydrostatic level switch, digital level gauge and level sensor with level ranges from 1 mWG up to 600 mWG (3.3 to 1969 ftWG).
LMP305 Borehole Level Transmitter - Submersible stainless steel pressure transmitter ideal for geotechnical surveying with a 19mm diameter for measuring hydrostatic water level in bore-holes.
LMK807 Plastic Submersible Level Transmitter - IP68 mid range pressure transmitter for measuring the level of highly contaminated and aggressive liquid media with a body made from PP-HT.
LMP 308 Removable Waterproof Cable Connection Water Level Sensor - Groundwater, tank & reservoir water level detachable submersible cable hydrostatic liquid level sensor for multiple municipal water level measurement locations.
- Dirty water, sludge & sewerage tank level 400 mbar pressure sensor
- 3m range 4-20mA output submersible hot water tank level sensor
- Borewell water level sensor for 100m water height
- Underground rain water storage tank level sensor and readout for 2 metre depth
- 200m deep well pump water level sensor, switch & display
- Contaminated groundwater submersible plastic body 5 psi pressure transducer & display
- 2m tank height, high temperature oil level sensor with 4-20mA out
- Water temperature depth sensor for cooling tower sump
- Dairy silo level sensor & display unit for reading content in litres
- Water level transmitter for monitoring sump pit water depth
- 400mm water level transmitter with 1mm accuracy
- Water well level monitoring in 3/4″ dia sounding tube to 300ft
- 4-20mA Output Hydrostatic Level Transmitters & Sensors - Explore industrial 4-20mA hydrostatic level transmitters for reliable liquid depth measurement. Ideal for tank gauging, borehole control & process monitoring applications.
Find out more about Hydrostatic Pressure Transmitters to determine which product options and capabilities will best meet your application requirements.
Hydrostatic pressure transmitters are essential tools for industries requiring accurate liquid level measurement in tanks, vessels, and other containers. By directly measuring the pressure at the bottom of a liquid column, these sensors provide a reliable indication of the fluid level above them.
Key Advantages & Applications
- Wide Range of Applications: Hydrostatic pressure transmitters find use in diverse applications, including:
- Monitoring liquid levels in storage tanks and process vessels.
- Measuring pump inlet head pressure.
- Determining water levels in reservoirs and open channels.
- Monitoring groundwater levels and well depths.
- Accuracy and Reliability: These transmitters offer high accuracy and stability, ensuring precise level measurements even in challenging environments.
- Simple Installation and Maintenance: Hydrostatic pressure transmitters are designed for easy installation and minimal maintenance, saving time and resources.
- Versatility: These transmitters can handle a variety of liquids, including water, chemicals, and fuels, making them suitable for various industries.
- Robust Construction: Built to withstand harsh industrial conditions, these transmitters feature durable materials and construction to ensure long-term performance.
Understanding Hydrostatic Pressure
Hydrostatic pressure is the pressure exerted by a fluid at rest due to the force of gravity. The pressure at any point within a fluid column is directly proportional to the height of the liquid above that point, its density, and the acceleration due to gravity.
How Hydrostatic Pressure Transmitters Work
A hydrostatic pressure transmitter typically consists of a pressure sensing element, signal conditioning electronics, and a housing. The sensing element, often a diaphragm or strain gauge, measures the pressure exerted by the liquid column. This pressure is then converted into an electrical signal, usually a 4-20mA current loop output, which can be easily transmitted to a control system or display device.
Applications
- Storage Tanks: Monitoring and controlling liquid levels in various storage tanks, including those for water, chemicals, fuels, and other industrial fluids.
- Processing Vessels: Measuring liquid levels in reactors, mixers, and other process vessels to ensure optimal operation and control.
- Header Tanks: Maintaining proper liquid levels in header tanks to ensure consistent flow and pressure in water distribution systems.
- Pump Inlet Head: Monitoring the liquid level at the inlet of pumps to prevent cavitation and ensure efficient pump operation.
- Open Channels and Reservoirs: Measuring water levels in open channels, rivers, and reservoirs for environmental monitoring and water management applications.
Important Selection Criteria
When choosing a hydrostatic pressure transmitter, consider the following factors:
- Measurement Range: Select a transmitter with a suitable pressure range to accommodate the expected liquid level variations.
- Accuracy: Choose a transmitter with the required accuracy for your application.
- Material Compatibility: Ensure the transmitter’s materials are compatible with the measured liquid to prevent corrosion or damage.
- Output Signal: Verify that the output signal type (e.g., 4-20mA) is compatible with your control system.
- Environmental Conditions: Consider the operating temperature, humidity, and other environmental factors when selecting a transmitter.
Hydrostatic pressure transmitters offer a practical and effective solution for accurate liquid level measurement in a wide range of industrial and process applications. Their reliability, ease of use, and versatility make them a valuable asset for any facility requiring precise level monitoring and control.