user manual User Manual

DCR-1003 and DCR-1004 Rev. A3, 10/08
22
Automation Products Group, Inc.
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Example 3- Relay Settings for Distance to Level
A 10 ft deep lift station requires that a pump turn on when a level is closer
than 6 ft. to the DST. The pump
must stay on until the level
drops to 9 ft. from the DST. An
alarm relay is to be energized
under normal operation and
should open for failure in power,
communication, invalid readings,
high level closer than 5 ft., or
loss of echo.
To program the DCR-1003,
1004 for this application, the
following modes must be set:
MODE VALUE DESCRIPTION
Operation
5 2.00 Do not set closer than the minimum distance recommended for
the DST sensor type being used
Relay
12 6.00 Set the pump begin point at 6 ft. from the DST
13 9.00 Set the pump end point at 9 ft. from the DST
14 2 Use the hysteresis near type of gate to keep the pump on while
pumping the level down
15 5.00 Begin the alarm trip point at 5 ft.
16 10.00 End the alarm trip point at 10 ft. because any reading greater
will indicate loss of echo or communication
17 4 Any signal higher than 5 ft. or lower than 10 ft. will cause the
alarm relay to open
10 ft
4 ft
1 ft
6 ft
9 ft