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WARNING / ALARM AB / BA Value
The Warning or Alarm AB / BA limit will activate the selected relay when the
respective limit is reached in the Ratio AB and BA menus. Select the Warning or
Alarm trigger desired and set the values in the Ratio menus starting on page 35.
Frequency Output Programming
The third output can only be set to output the incoming frequency from
one of the two inputs. From the top Limit programming menu, choose the
Frequency Output option, press ENTER and use the UP or DOWN button
to select the input channel to route to the frequency output. There are no
other variables to program. The output frequency is not affected by the
Gate Time filter and cannot be linearized. It is always the raw incoming
frequency from the selected sensor.
Gate Time Filter
This variable sets the sample time on the incoming frequency for the RATE
displays. Programmed in tenths of a second with an allowable range from 0.1 to
999.9 seconds, this variable affects the update of the display and analog output,
and is useful in stabilizing the display and output when dealing with fluctuating
flow rates. Setting the Gate Time to zero (0) disables the Gate Time filter and
all data is updated at an internal default rate of approximately 0.02 seconds. If
the Gate Time filter is active (any non-zero value) any run mode screen affected
by the filter will show ‘GT’ in the lower right hand corner of the screen.
Figure 22. Frequency Output Programming
Figure 23. Gate Time Filter
Содержание AW Gear Meters MX 9000
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