Vogtlin Red-y compact 2 Series, Operating Instructions Manual, Page: 32 / 47

With the filter settings you adjust the reading of
quickly changing flows. The filter basically
averages the readings from the sensor. More
information can be found in chapter 2.22 Filter
Settings.
□ Off
□ Low
□ Medium
□ High
□ Maximum
□ Off
□ Low
□ Medium
□ High
□ Very high
□ Maximum
There are two separate filters that are adjustable
and independent of each other.
Dynamic and Averaging filter:
Dynamic Filter:
The dynamic filter will increase the number of
readings that are averaged when the flow is less dynamic and
decrease the number of readings that are
averaged
when the flow shows quick changes. So when the flow is quickly rising or falling it will
take less averages in it calculations. On this way the unit will react faster to changes in
the flow.
Averaging filter
The averaging filter is a “moving average filter”. It calculates the average value
of a number of measurements and shows the average on the display. As you
increase the filter setting from off to maximum, you increase the number of
measurements the average is calculated from.
Before you apply higher filter values, please try to identify the cause of
the flow pulsations. This could be a compressor, pressure amplifiers,
incorrectly sized fittings, non-return valves or pressure regulators.
Sometimes creating more “dead volume” before of behind your flow
meter could solve the problem.
4.12.5. Resolution
The red-y compact 2 has the ability to show the actual flow in many different
engineering units. This means that the number of digits in the readout can change a
lot. In automatic resolution mode the required number of digits is automatically
calculated depending on the range and selected units. This resolution is however
adjustable by the user.
> Totalizer
> Flow
In this menu you can adjust the resolution of your flow and
totalizer values shown on the display.
□ 0.0001
□ 0.001
□ 0.01
□ 0.1