Dwyer ULSS - Manual (Page 25)

Rev 5 MN890570 25 of 30
ADVANCED FEATURES Step Ten
 Increase Output Filtering: Placing a check mark in the box will increase the filtering (averaging) of the
analog output. Use this filter if the 4 to 20 mA output requires a smooth output for the application
such as open channel flow measurement.
 Decrease Output Filtering: Placing a check mark in the box will eliminate all filtering (averaging) of the
analog output. Enables a pulse by pulse level reading. Use this filter to see changes in level after every
sound pulse.
Note: Never check increase output filtering and decrease output filtering at the same time.
 Stabilize Output in Dead band: Placing a check mark in the box will activate a filter to hold the output
at Full Level if the level enters the dead band of the Series ULS. This filter requires the level to leave
the dead band at a smooth and steady rate.
 Turn OFF Fast Level Changes: Placing a check mark in the box will turn off the filter enabling fast level
changes. Use this filter if your application has very smooth, slow and steady level changes. The filter
instructs Series ULS to look only for small incremental changes in level.
 Turn ON Noisy Mount Start Filter: Placing a check mark in the box will activate a filter that reduces
sound interference from the installation mount. Use this filter if the Series ULS will not go to full range
in the installation.
 Invert Relay States: Placing a check mark in any of the four boxes will reverse the state of that relay.
For example, if relay 4 is a high alarm that energizes above 50” of liquid, checking the invert box will
reverse so the relay will energize when it is below 50” of liquid. Inverting the relay will also invert the
fail‐safe of the relay. If the relay is fail‐safe On, inverting the relay will make it fail‐safe Off.
 Fail‐Safe will also invert unless you check below: This button will not invert the fail‐safe when a relay
is inverted.