Operation
Marathon MR Rev. E2 04/2011 33
The averaging algorithm simulates a first order low pass RC filter whose time constant can be
adjusted to match the user’s averaging needs. The following figure illustrates an averaging output
signal.
Figure 22: Averaging Example
To set and activate Averaging, do the following:
1. Press the Mode button until the AVG LED is lit.
2. Press the button to both set and activate. The display reads in 0.1 seconds. Set Average
anywhere from 0.1 to 300.0 seconds. If Average is set to 0.0 seconds, the function is
deactivated.
3. Press the Mode button until the C or F LED is lit. If Average has been activated, the AVG LED
will stay lit.
Once Averaging is set above 0, it automatically activates. Note that other hold functions (like Peak
Hold) cannot be used concurrently.
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