15. 4. 2005
Flow controllers with digital display for water and water-glycol mixtures
Gettorf – EGE introduces the new sensor series SDN 552, which adds new models featuring an intergrated digital display for the flow rate to the company´s range of inline flow controllers.
Gettorf – EGE introduces the new sensor series SDN 552, which adds new models featuring an intergrated digital display for the flow rate to the company´s range of inline flow controllers. The compact IP 65 sensors are designed for media temperatures from -10...90 °C and can also be used to monitor cooling systems containing water-glycol mixtures. The glycol concentration can be set by 5 % increments between 0 and 30 % directly at the device. The new sensors operate according to the thermodynamic principle and have no moving parts, instead, they are fitted directly into pipes via pipe fittings. They are available for diameters of 10, 15 and 18 mm with respective flow rates of 1...10, 2...20 and 4...40 l/min. Within those limits, two switching points may be programmed as NC and NO contacts. Hysteresis and time delay can also be set to match the application. In addiation to the flow rate, the temperature can be monitored as well: a switch output signals if the preset temperature is exceeded. Sensors with a switching point and an additional linear 4...20 mA current output are available for control purposes and logging.
Figure: Inline flow controller with a digital display
