Table of Contents What is Hydrology? Hydrology refers to the various phenomena of water changes and movement in nature. It studies the formation, circulation, spatial
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Water Level Sensor
Our water level sensor adopts imported high-precision diffusion silicon sensitive components, stainless steel casing with all-welded sealing structure, high measurement accuracy, and reliability. It is an excellent solution to level monitoring for indoor and outdoor applications. Below is the water level sensor price.
- Model: RS-PM200-EX
- MOQ: 1 PCS
- Delivery date: within 24 hours
- Price: $45.8~$89.9
Water Level Sensor Information
Our water level sensor features a protective cap at the front end, designed to shield the sensor diaphragm while allowing liquids to flow smoothly into contact with it. The waterproof cable and housing are sealed for a secure connection, enabling long-term underwater use. The sensor includes a built-in micro signal processing circuit, supporting remote transmission. Our liquid level sensor offers excellent stability and reliability. It is developed using imported diffused silicon chips and low-power ADI professional chips, combined with microprocessor technology. The sensor is compact, highly accurate, and has a measurement range from 0m to 99m, with other ranges available for customization.
Renke level sensor features
- Reverse polarity protection and transient overcurrent/overvoltage protection, compliant with EMI protection standards.
High-quality vented cable designed for long-term immersion in water. - Strong overload and anti-interference capabilities, offering cost-effective stability.
- Core auto-calibration algorithm effectively prevents value fluctuations caused by water surface movement.
- Sloped liquid inlet design effectively prevents silt and debris entry while resisting impact.
- Submersible probe measurement method for easy and convenient installation.
- Multi-layer protective structure design with an IP68 protection rating. Made of corrosion-resistant stainless steel, suitable for various applications.
Renke level sensor datasheets
| Signal | RS485 | 4-20mA/0-5V/0-10V |
|---|---|---|
| Power supply | 10-30V DC | 2-36V DC |
| Power consumption | 0.2W | 0.48W |
| Measuring range | 0-100m (optional) | |
| Accuracy | 0.2%FS, 0.5%FS (default) | |
| Overload capacity | <1.5 times the range | |
| Medium temperature | -10~+50℃ | |
| Component temperature resistance | -20℃~80℃ | |
| Measuring medium | oil, water, etc. that are non-corrosive to stainless steel | |
| Protection level | IP68 | |
| Outer diameter | Ф26.8mm | |
| Long-term stability | ±0.2%FS/year | |
| Load capacity | — | Current: ≤500Ω, Voltage: ≤510Ω |
How does a water level sensor work?
The working principle of the water level sensor is based on the relationship between liquid hydrostatic pressure and liquid level (P = ρgH). It converts the hydrostatic pressure into an electrical signal to measure the liquid level. The cable of the water level sensor contains a vent tube connected to the external atmosphere, which measures both underwater pressure and atmospheric pressure. The water depth is then calculated based on the pressure difference.
This liquid level sensor, when connect with a monitoing host, can control the switching of water pumps and solenoid valves based on water level data set by the administrator, enabling remote automatic control.
Other accessories
Light bar display
Digital display
Filter cover
Video and applications
Our liquid level sensors are widely applicable for level measurement and control in water plants, wastewater treatment plants, urban water supply, high-rise water tanks, wells, geothermal wells, mines, industrial water tanks, oil tanks, hydrogeology, reservoirs, rivers, and oceans. If you would like to learn more or watch our water level sensor‘s videos, please contact us.
Water Level Sensor FAQs
What is a water level sensor?
Liquid level sensor (water level sensor) is a pressure sensor for measuring liquid level. and convert the measured pressure into electrical signal output.
What's in the packing list?
Water level sensor 1 unit
Certificate of conformity, warranty card
How to wire?
The following are the wiring methods for RS485 and analog models.
How does the water level sensor work?
The principle of static pressure measurement: when the liquid level transmitter is put into a certain depth of the liquid under test, the pressure formula of the sensor against the liquid level is as follows:Ρ=ρ.g.H Po formula: Pressure on
P: transmitter against liquid level
ρ： measured liquid density
g: local gravity acceleration
Atmospheric pressure on Po: surface
Depth of H: transmitter into liquid
Meanwhile, the pressure of the liquid is introduced into the positive pressure chamber of the sensor through the gas conduction stainless steel, and the atmospheric pressure Po on the liquid level is connected with the negative pressure chamber of the sensor to counteract the Po, on the back of the sensor
The pressure measured by the sensor is ρ.g.H the depth of liquid level can be obtained by measuring the pressure P.
What are the types of water level sensor?
It is divided into two categories: one is contact type, including single flange differential pressure liquid level sensor, float liquid level sensor, magnetic liquid level sensor, input liquid level sensor, electric inner float liquid level sensor, electric float liquid level sensor, electronic water level gauge, magnetostrictive liquid level sensor, servo liquid level sensor, etc. The second category is non-contact, divided into the ultrasonic liquid level sensor, radar liquid level sensor, and so on.
Where to download the water level sensor manual?
Please contact us for manual.
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