LiquiSonic® OCR measures inline and precisely the concentration of oil in refrigerants. The analyzer consists of one or multiple sensors and one controller. The sensor is installed directly in the pipeline and monitors continuously and in real time the oil circulation ratio (OCR). The measurement data are available online and are updated every second. The controller displays the measurement results and can be integrated into the network and control system via 4-20 mA signal, digital outputs, serial interfaces, fieldbus or Ethernet.
For the concentration determination, the LiquiSonic® technology is based on sonic velocity, providing high-precision and stable measurement results due to the chemical and physical properties of refrigerants. The sensors are used in temperatures of down to -30 °C and have proven, for example, in polyester oils (POE), polyalkylene (PAG), polyalphaolefins (PAO), hydrofluorocarbons (HFCs) R134a, 1234yf, carbon dioxide R744 or ammonia R717 in various industries such as air conditioning of automotives or buildings.