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Water Level Sensor
Renke level sensors are designed to industrial standards for monitoring water level, oil level, and other non corrosive liquids. The level probe is made of stainless steel, and the signal cable is protected with insulated rubber, achieving an IP68 rating for use in harsh environments. This water level sensor offers multiple output options, including RS485 and analog signals(4-20 mA, 0-5 V, and 0-10 V).
- Model: RK-PM200-*-EX
- MOQ: 1 PCS
- Delivery date: within 24 hours
- Price: $45.8~$84
About - Water Level Sensor
Renke water level sensor measures the height of water or other liquids and converts it into an digital signal output. It features a built-in high precision diffused silicon sensing element, offering strong resistance to interference and high measurement accuracy. Our water level sensor includes automatic temperature compensation to correct thermal drift and effectively reduce measurement errors. It is an ideal solution for indoor and outdoor level monitoring and can be connected to computers, controllers, or PLC systems.
Advantages
The removable protective cap at the front of water level sensor not only protects the sensing diaphragm but also allows liquid to flow smoothly into contact with it. The waterproof cable and stainless steel probe are designed with a sealed structure to ensure a secure connection, enabling long term underwater operation. The sensor integrates a micro signal processing circuit and supports remote transmission. It adopts a core auto calibration algorithm to effectively reduce fluctuations caused by water surface movement.
Our level sensor offers excellent stability and reliability. It features reverse polarity protection and instant overcurrent and overvoltage protection, meeting EMI protection requirements to prevent circuit damage from incorrect wiring. The probe is made of 316L stainless steel with a 45 degree arc cone design, which helps prevent sludge and debris from entering and also provides impact resistance.
Parameters
| Signal | RS485 | 4-20mA/0-5V/0-10V |
|---|---|---|
| Power supply | 10~30V DC | 12~36V DC (typical 24V) |
| Power consumption | 0.2W | 0.48W |
| Measuring range | 0-100m (optional) | 0-100m (optional) |
| Accuracy | 0.2%FS, 0.5%FS (default) | 0.2%FS, 0.5%FS (default) |
| Overload capacity | ≤2 times the range | <2 times the range |
| Zero-point temperature error | — | ±0.75%FS, @35℃ |
| Full-point temperature error | — | ±0.75%FS, @35℃ |
| Medium temperature | 0~+60℃ | 0~+60℃ |
| Component temperature resistance | -40℃~80℃ | -40℃~80℃ |
| Measuring medium | oil, water, etc. that are non-corrosive to stainless steel | oil, water, etc. that are non-corrosive to stainless steel |
| Protection level | IP68 | IP68 |
| Temperature compensation | -10℃~70℃ | — |
| Long-term stability | ±0.2%FS/year | — |
| Load capacity | — | Current: ≤500Ω, Voltage: ≤510Ω |
Features
- 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.
Related accessories
Light bar display
Digital display
Filter cover
Application
Renke water level sensor is lightweight and easy to install. Featuring a sealed stainless steel probe, it is suitable for use in water, oil, and non corrosive environments. It has a compact structure and high accuracy, with a measurement range from 0 to 99 meters. Other ranges can be customized according to your requirements. This sensor offers excellent resistance to vibration and shock, making it widely used in water plants, wastewater treatment plants, urban water supply, wells, geothermal wells, mines, industrial water tanks, oil tanks, hydrogeology, reservoirs, rivers, and oceans.
FAQs - Water Level Sensor
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 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.
How to wire water level sensor?
The following are the wiring methods for RS485 and analog models.
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.
What's in the packing list?
Water level sensor 1 unit
Certificate of conformity, warranty card
What precautions should be taken during use?
- The level sensor can be installed vertically, inclined, or horizontally in tanks or vessels. Ensure that the probe is not buried or blocked by sludge or debris.
- When connecting the power supply, strictly follow the wiring instructions in the manual. Incorrect wiring may damage the signal conditioning circuit.
- In conditions with significant medium fluctuations, measures should be taken to stabilize the probe, such as adding weights.
- The vented cable provides critical atmospheric compensation. During installation, avoid excessive tightening or sharp bending to prevent blockage of the vent tube. The vent opening should face downward to prevent rainwater ingress. During use, avoid abrasion, puncture, or damage to the cable.
Where to download the water level sensor manual?
Please contact us for manual.
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