Hydac Flow Sensor EVS3100/3110 Series

Hydac Flow Sensor EVS3100/3110 Series

In the complex context of hydraulic and fluid power systems, the Hydac flow sensor EVS 3100/3110 series is not only a carrier of energy transfer, but also a core indicator of system efficiency and stability. As a giant in the field of fluid control, HYDAC in Germany's EVS 3100 and EVS 3110 series flow sensors have become monitoring components for numerous hydraulic stations, lubrication systems, and cooling devices due to their classic turbine measurement principles and industrial grade design. These two sensors are not simply flow switches, but intelligent instruments that integrate precision mechanical sensing and electronic signal processing technology. They are like "pulse monitors" in hydraulic systems, capable of converting invisible fluid motion into precise electrical signals, providing solid data support for closed-loop control of industrial automation.

The core working principle of the EVS 3100 and EVS 3110 series is based on the turbine effect in fluid mechanics. When fluid (usually hydraulic oil or water ethylene glycol) flows through the sensor housing, it will impact the internally installed impeller (turbine). The blade design of the impeller is precisely calculated to ensure a strict linear relationship between its rotational angular velocity and the fluid flow velocity. As the flow rate increases, the speed of the impeller correspondingly accelerates; On the contrary, as the flow rate decreases, the rotational speed also decreases. This mechanical rotational motion is captured by non-contact detection devices inside the sensor (usually magneto resistive or Hall effect sensors) and converted into electrical pulse signals.

In the signal processing stage of the Hydac flow sensor EVS 3100/3110 series, the frequency of these pulse signals is proportional to the volumetric flow rate. The electronic module inside the sensor linearizes these frequency signals and converts them into standard 4-20mA analog current signals for output. This standard current signal has anti-interference ability and can be transmitted over long distances to PLC, DCS or upper computer systems without being affected by changes in line resistance. The EVS 3100 series typically uses an aluminum alloy shell, while the EVS 3110 series has been upgraded to stainless steel material and equipped with hard alloy bearings for the impeller. This not only improves wear resistance, but also enables it to adapt to pulsating flow or dynamically changing medium flow, with a viscosity range of up to 1... 100 cSt.

In addition to basic flow measurement, the Hydac flow sensor EVS 3100/3110 series also demonstratesIntegration and scalability. Two G1/4 threaded holes are specially designed on the exterior of the turbine housing, allowing users to install additional temperature or pressure sensors. This means that one EVS device can simultaneously monitor three key parameters: flow, temperature, and pressure, greatly simplifying pipeline layout and installation costs. In addition, some models (such as those with the suffix "- H") are equipped with HSI sensor interfaces, which can seamlessly connect with HYDAC's HMG series handheld measuring instruments, achieving plug and play data acquisition and diagnosis. Whether used to monitor the oil supply of hydraulic stations or protect pump units from dry running damage, the EVS 3100/3110 series embodies the rigor and reliability of German manufacturing with its precise and durable characteristics.

Hydac Flow Sensor EVS 3100/3110 Series Shanghai Taoran Spot Sales

As a global fluid control field, HYDAC's sensor product line is renowned for high precision, high reliability, and durability, and is widely used in industrial systems such as hydraulic, lubrication, cooling, and water treatment. Its product model system is vast and can be mainly divided into the following core categories:

pressure sensor

This is one of the core product lines of Hedec, used for monitoring the pressure of liquids or gases, and the model usually starts with "HDA".

HDA 4700 series: This series adopts DMS (strain gauge) technology on stainless steel diaphragm, which has the characteristics of small volume and minimal influence by temperature changes, with a total error of up to 0.5%.

HDA 4800 series: also based on DMS technology, but with higher accuracy, with a total error of up to 0.3%, especially suitable for laboratories and test bench devices with strict accuracy requirements.

HDA 4400 series: characterized by compact structure and light weight, with a total error of 1%, suitable for a wide range of industrial fields.

HDA 4300/4100 series: specially designed for low-pressure applications, using sturdy ceramic sensing units, mainly used in the pneumatic, refrigeration, food, and pharmaceutical industries.

temperature sensor

Used for precise measurement of the temperature of oil, water, or other media, the model usually starts with "ETS" or "TFP".

ETS 3000/4000 series: Electronic temperature switches or sensors that can be directly connected to pressure pipelines for fuel tank monitoring and temperature control, with a measurement range typically from -25 ℃ to 100 ℃.

TFP 100 series: PT100 temperature sensor mainly used for tank installation, often used in conjunction with Hedec's temperature switch.

level sensor

Used to monitor the liquid level in containers such as fuel tanks and water tanks, providing multiple measurement principles to meet different needs.

Float ball/rod type: structurally simple and reliable, used for liquid level switches or continuous measurements.

Capacitive: using non-contact measurement, suitable for different types of liquids.

Ultrasonic/radar wave type: also non-contact, especially suitable for liquid level monitoring of large storage tanks.

flow sensor

Specially designed for hydraulic and other fluid systems to measure the flow rate of media.

EVS 3100/3110 series: using a turbine working principle, it can measure liquid flow and integrate temperature and pressure sensors simultaneously to achieve multi parameter monitoring.

Oil status sensor

Used for online monitoring of the quality of hydraulic oil and lubricating oil, it is a key equipment for achieving predictive maintenance.

OCS series: Oil cleanliness sensor, used to monitor the degree of particulate matter contamination in oil.

FS series: Fluid state sensor that can comprehensively measure key parameters such as viscosity, density, dielectric constant, and temperature of oil.

Please note that the above are only some common series of HYDAC sensor product lines. In actual selection, precise matching is required based on specific measurement parameters, range, process connection interfaces, electrical output signals (such as 4-20mA, 0-10V), and protection levels.

Hydac Flow Sensor EVS3100/3110 Series

Shanghai Taoran Industrial's main brands: EPRO, Rexroth, Hydac, Parker, Atos, Samson, Aventics, Bently, Ifm, Fairchild, Asco, Asco, Euchner, SMC, P+F, Burkert, Endhouse E+H, Balluff, Sun, Pilz, Mac, Gessmann, METRIX, BENTLY Bentley sensors