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The F600 Digital Thermometry Bridge is a new series of high performance resistance thermometry bridges from ASL that is unique in offering the latest technology in both AC and DC measurement. Integrity in measurement has always bee a hallmark of ASL instruments and F600 continues that tradition. However, now you have an even lower frequency AC bridge, or switched DC measurement technology to choose from, according to your needs. The F600 Digital Thermometry Bridge is the first product from ASL that is available as an AC Bridge and as a DC instrument enabling you to choose the best suited to your application, or to compliment your existing equipment. The AC bridge now operates at the lower frequency of 25Hz (50Hz supply) or 30Hz where your power supply is 60Hz, while the DC version provides a switched D censor current to simulate the advantages of AC - AC bridges eliminate entirely the errors caused by the thermal emf's in the probe or associated wiring. F600 is easy of use and is versatile in operation. You can choose and save what information you want to display on-screen as an aid to efficient working. You can also choose to select or change functions, such as probe current by a dedicated switch or from within the menu displayed on the screen. For multi-channel applications, F600 operates with ASL's existing switch box systems to allow system expansion of up to 60 channels.