Titan Metraflow 240-020, Инструкция по эксплуатации

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©Titan Enterprises Ltd 2018 www.flowmeters.co.uk MetraflowManual_v1219
Once this signal adjustment is in place the meter will automatically look to that position when powered
up, ensuring the most accurate measurement point is taken.
Then if required, the user can enter a simple scaling factor on the User Settings tab, to accurately adjust
the water calibration to that of the fluid being measured,.
Good signal strength and position:
Poor Signal strength and an adjusted speed of sound position:
Median Filter
This filter removes short term anomalies in the recorded flow e.g. an air bubble passing through. It
should be used with caution as it is theoretically possible that over use of this feature could lead to
incorrect results in certain circumstances. Under normal operating conditions the meter returns around
25 results per second and a regular occurrence at this frequency could be completely ignored thus
causing problematic readings.
The filter is a moving window taking the middle number from an odd number of results selectable
between 1 and 21. It is not an average or mean and it is designed to totally ignore one or more results.
A simple example is shown below for a median value of “3”.