E+E Elektronik develops and produces sensing elements, modules and sensors for humidity, dew point, moisture in oil, CO2, air velocity, flow, temperature and pressure. Hand-held meters, humidity calibration systems and calibration services complete the comprehensive product portfolio of the Austrian sensor specialist. The main applications for E+E products lie in HVAC, building automation, industrial process control and the automotive industry. A certified quality management system according to ISO 9001 and IATF 16949 ensures the highest quality standards. E+E Elektronik is represented by its own subsidiaries in China, France, Germany, India, Italy, Korea, USA and by sales partners in more than 60 countries worldwide. The accredited E+E calibration laboratory has been commissioned by the Austrian Federal Office of Metrology and Surveying (BEV) to provide the national standards for humidity, dew point, air velocity and gas concentration CO2.
The EE680 air velocity sensor by E+E Elektronik allows to monitor the laminar flow in cleanrooms or on safety workbenches. The sensor precisely measures the air velocity from 0.1 to 2 m/s (20…400 ft/min) and simultaneously also the temperature. It meets the requirements of Good Manufacturing Practice (GMP) and is therefore ideally suited for the pharmaceuticals, biotechnology and microelectronics industries.
High Accuracy and Long-Term Stability
Factory multi-point adjustment of the air velocity ensures high measurement accuracy over the entire working range. An adjustment point at 0.45 m/s (88.6 ft/min) takes into account the air flow range defined in the EU GMP directive for the manufacture of sterile medical devices. The measurement accuracy of the sensor is confirmed by an inspection certificate in accordance with DIN EN 10204-3.1.
The innovative flow sensing element used in the EE680 is based on the hot film anemometer principle and offers excellent long-term stability and low angular dependence. The special E+E sensor coating makes the thin-film sensing element highly resistant to H2O2 sterilisation and other aggressive cleaning agents.
With its smooth stainless steel enclosure and a sensor design optimised for laminar flow monitoring, the EE680 meets the requirements of Good Manufacturing Practice (GMP) in the cleanroom. The straight or angled design of the sensor with different probe lengths allows for wall or ceiling mounting at the ideal distance from the filter element, according to EN ISO 14644-3. The practical mounting flange and M12 stainless steel connector facilitate the installation and replacement of the EE680.
Visual Status Indication
An LED ring integrated into the enclosure indicates the laminar flow conditions and the sensor status. Any deviation from the target state or operating fault can therefore be quickly detected. The preset threshold values and further indication options can be configured individually.
Analogue or Digital Output The measured values for air velocity and temperature are optionally available at the analogue voltage or current output, or at the RS485 interface via the Modbus RTU protocol. The type of measured value output can also be retroactively configured.
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