Proudly engineered in Switzerland
Sensor for measuring the viscosity of liquids
VLO-M2 viscosity and density sensor for liquids
Viscosity data can be used to determine the properties of liquids and monitor their quality. The sensor measures the viscosity in the running process – even in the smallest of spaces. Irrespective of the viscosity, the sensor also measures the density and temperature of the medium being measured.
Application examples:
- Optimization of process reliability in applications where a certain viscosity is required. For example, engine oils on calibration systems.
- To supplement the density values to ensure the quality of lubricants or fuels.
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Data sheet
VLO-M2_ex viscosity and density sensor for liquids
The VLO-M2_ex sensor for use in hazardous areas according to ATEX: II1G and IECEx: Zone 0 measures the density and viscosity of liquids in a microelectromechanical system (MEMS system). Within the MEMS system, the liquid is directed to an omega-shaped microchannel, the so-called omega chip
Thanks to measurement in the MEMS system, the sensor is only 30 x 83 x 15 mm in size and can be accommodated even in tight spaces. The high-precision measurement results are immediately available, allowing continuous measurement during the process.
VLO-C3 viscosity and density sensor for liquids
The VLO-C3 sensor is the OEM version of the proven VLO-M2 series. Like the VLO-M2, this sensor measures the density and viscosity of liquids using a microelectromechanical system (MEMS). Within this system, the liquid flows through an omega-shaped microchannel known as the Omega-Chip. This tiny silicon tube, thinner than a human hair, is set into vibration, allowing the liquid’s density to be determined from its natural frequency: The higher the density, the lower the natural frequency.
Thanks to its integration into a MEMS system, compact design, and optimized electronics, this sensor is ideal for use in measuring devices, such as portable density meters. The highly precise measurement results are available immediately, enabling continuous monitoring within a system. Since liquid density depends on temperature, an integrated platinum resistor measures the temperature to compensate for this effect automatically.
The collected measurement data is transmitted via a data line using the UART TTL communication format to the overarching system.