| Track-Hold / Peak-Hold
Process Function AP4570 |
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Provides Signal Track & Hold or Track & Peak Hold Capability
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The AP4570 offers two modes of operation: Track & Hold and Track & Peak - Hold. In "Track & Hold" operation the output tracks the input signal. When an external contact is closed, the input level is "saved" and its corresponding output signal is helped indefinitely until the contact is opened. Releasing the hold switch (pins 8 and 11) allows the output to again follow the input. The "Track & Peak-Hold" mode is similar to "Track & Hold" operation except upon contact closure (pins 8 and 11) the highest input is "saved" and the corresponding output is help until a higher signal level occurs. Model AP4570 is useful in capturing DC-input signals to be held for further processing or signal-conditioning. Typical applications include monitoring peak electrical or energy demands, capturing process conditions such as flow rates, equipment protection and taring to factor out unwanted dead weight. |
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| Last Updated Friday, January 09, 2009 | |||