Level Sensor Probe | 4-20mA Current Loop Output | 10-30V DC Input

This submersible sensor tracks liquid depths in tanks, wells, or sumps. It gives continuous, real-time data. The sensor measures hydrostatic pressure. This provides more detail than a simple on/off float switch for water pump control. Features and Benefits - Multiple analog outputs - You can choose from 4-20mA, 0-5V, or 0-10V signals. These connect directly to your existing PLC, SCADA system, or controller. - Stainless steel build - The body is 304 stainless steel. Its IP68-rated housing protects the sensor from corrosion when fully submerged. - Wide power input - It runs on a 10-30V DC supply. This makes it easy to add to various industrial power setups. - Stable 4-20mA signal - The 4-20mA output is less affected by electrical noise. This helps over long cable runs, good for remote monitoring. Applications - Water tank management - Watch levels in reservoirs and water towers. Use the 0-10V output for analog gauges or control systems. - Industrial process control - Keep track of fluid levels in chemical holding tanks or wastewater basins. The 4-20mA signal is dependable. - Well and sump pump control - Get exact depth readings. This helps control pump activation and stops dry running or overflows. Mechanical / Float Sensors This Level Sensor Probe is a type of Float Switch, which is a common way to measure water levels. A float switch uses a buoyant element, or float, that moves with the liquid level. This movement then activates a magnetic switch or reed switch, which changes the electrical output. These sensors are a straightforward and reliable method for detecting liquid levels, suitable for various applications where a simple on/off signal or a continuous level reading is needed. This particular sensor has a 4-20mA current loop output. Ultrasonic Sensors (Non-Contact) Unlike the Level Sensor Probe, ultrasonic sensors are a non-contact method for determining water levels. They work by emitting sound waves and measuring the time it takes for these waves to bounce back from the liquid surface. This "time of flight" data is then used to calculate the distance to the liquid, and thus the level. As the Level Sensor Probe is a type of Liquid Level Transmitter, it differs from ultrasonic sensors which do not require direct contact with the liquid. Ultrasonic sensors are often used in applications where direct contact with the liquid is undesirable. Submersible Hydrostatic Pressure Sensors Submersible hydrostatic pressure sensors, also known as pressure transducers, measure the pressure exerted by the column of liquid above them. The deeper the sensor is submerged, the greater the pressure, which directly correlates to the liquid level. This Level Sensor Probe is a Water Level Sensor Probe Detector, which might utilise a similar principle if it's designed for submerged operation. These sensors are robust and can provide continuous level measurement, often with outputs like 4-20mA, 0-5V, or 0-10V, matching the output signals available from this product. Capacitive Sensors Capacitive sensors detect changes in capacitance caused by the presence or absence of a liquid. These sensors often consist of a probe that, when submerged, changes the electrical field around it. This change is then converted into an electrical signal, indicating the liquid level. While this Level Sensor Probe is a Liquid Level Transmitter, capacitive sensors offer another approach to water level detection, particularly useful for non-conductive liquids or where a non-intrusive measurement is preferred. They can provide continuous level monitoring. Optical Sensors Optical sensors for liquid level detection work by using light to determine the presence or absence of a liquid. They typically involve an LED and a phototransistor. When the probe is in air, light from the LED is reflected back to the phototransistor. When the probe is submerged in liquid, the light is refracted away, and less or no light reaches the phototransistor, triggering a switch. This Level Sensor Probe is a Water Level Sensor Probe Detector, which is a different operational principle than optical sensors, which are often used for point level detection.