High precision ESMWLPS Deep well measurement Submersible pressure level sensors for water oil

ESMWLPS Submersible level sensor according to the proportional relationship between the static pressure within a liquid and the liquid level height, the measurement is carried out using the formula P = ρ × g × h(where P is the static pressure, ρ is the liquid density, g is the acceleration due to gravity, and h is the liquid level height). The pressure-sensitive element inside the sensor probe detects the static pressure, converts the pressure signal into an electrical signal, and then transmits it via a cable to a display instrument or control system, where it is finally converted into the liquid level height.

1.Easy and flexible installation: Can be installed via direct insertion, flange, or threaded connection, without complex modifications to the container. Suitable for both open and closed containers, and works immediately when immersed in liquid.
2.Accurate and stable measurement: Based on the hydrostatic principle, combined with temperature compensation elements, providing high measurement accuracy and good repeatability, unaffected by foaming or sediment in the medium.
3.Reliable and durable structure: Solid-state encapsulation design with no moving parts, reducing mechanical wear and extending service life. Probes are mostly made of stainless steel, resistant to corrosion and impact.
4.Wide range of applicable media: Can measure water, oil, chemical liquids, and high-viscosity pasty media, unaffected by the electrical properties of the medium or minor density fluctuations.
5.Comprehensive protection: Excellent waterproof sealing performance, with cables mostly being special waterproof types, some reinforced with steel wire. Features include reverse polarity protection and overload current limiting, suitable for harsh working conditions.
6. Strong functional adaptability: Supports standard signal outputs such as 4-20mA, directly interfacing with control systems. Some models integrate display modules for intuitive data reading.

1. Reservoir Dam Safety Monitoring:
Scenario: Installed in piezometer tubes or inside the dam body, it monitors reservoir water levels and seepage pressure in real time.
Function: Prevents dam failure caused by excessive water levels and assesses dam stability. For example, specialized models from manufacturers like Nanjing Yusi can be directly deployed in narrow piezometer tubes.

2. River and Channel Water Level Monitoring:
Scenario: Installed in river cross-sections and hydrological stations for flood warning and water resource scheduling.
Advantage: Compared to radar/ultrasonic sensors, submersible sensors are not affected by water surface waves, floating debris, heavy fog, or rainstorms and can operate stably in extreme weather.

3. Urban Waterlogging Monitoring:
Scenario: Deployed in low-lying urban roads, underpasses, and beneath overpasses.
Function: When water accumulation reaches the warning line, it automatically triggers alarms and links to drainage pump stations to ensure urban traffic safety.

4. Wastewater Treatment Plants:
Scenario: Regulation pools, aeration tanks, sedimentation tanks, sludge concentration tanks.
Case: In early 2026, 42 submersible level meters were deployed in the Qiantang District wastewater remediation project in Hangzhou, successfully solving monitoring difficulties caused by high sludge content, complex media, and abundant foam, improving treatment efficiency.
Advantage: Not affected by surface scum, foam, or steam (which are problematic for ultrasonic sensors).

5. Water Supply Plants and Distribution Networks:
Scenario: Clear water tanks, high-level water towers, underground reservoirs.
Function: Precisely control pump start/stop, maintain constant pressure water supply, and prevent water tower overflow or drainage.

6. Rainwater Pump Stations and Collection Wells:
Scenario: Basement sumps and rainwater lift pump stations.
Feature: Typically uses models with anti-clogging protective covers to prevent probes from being tangled by plastic bags or leaves.

7. Petrochemical Industry:
Scenario: Crude oil storage tanks, chemical raw material tanks, finished oil pipelines.
Requirement: Must have explosion-proof certification (Ex ia/Ex d) and resistance to corrosive liquids (acids, alkalis, solvents).

8. Power Industry:
Scenario: Boiler drum water level, condensate tanks, circulating water pools, demineralized water tanks.
Function: Boiler water level is a critical parameter for power plant safe operation, and submersible sensors provide highly reliable continuous measurement.

9. Pharmaceutical and Food Industry:
Scenario: Medicine preparation tanks, fermentation tanks, drinking water storage tanks.
Requirement: Hygienic design, easy to clean, compliant with GMP standards, usually made of 316L polished stainless steel.

10. Marine and Shipping:
Scenario: Ship ballast water, seawater desalination tanks, port water levels.
Requirement: Must use materials resistant to seawater corrosion (e.g., titanium alloy or special coatings).

11. Farmland Irrigation Systems:
Scenario: Reservoirs, irrigation channels, groundwater wells.
Function: Automatically control irrigation pumps, optimize water resource use, and prevent drought or flooding.

12. Aquaculture:
Scenario: Fish ponds, shrimp ponds, industrial aquaculture workshops.
Function: Monitor water depth, link to aerators and water exchange systems to ensure a stable breeding environment.