APG DCR-1004 user manual - Manual (Page 23)

Rev. A3, 10/08 DCR-1003 and DCR-1004
23
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Example 4- Relay Settings For Product Level Rather than Distance to Level
A 10 ft. deep lift station requires
that a pump turn on when a level
reaches 4 ft. and stay on until the
level drops to 1 ft. from the
bottom of the station. An alarm
relay is to be energized under
normal operation and should open
for failure in power,
communication, invalid readings,
high level above 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
3 2 Select Volumetric Monitoring for this application so the display
will read the distance from the tank bottom to the level
5 2.00 Do not set closer than the minimum distance recommended for
the DST sensor type being used
Relay
12 1.00 Set the pump begin point at 1 ft. from the bottom
13 4.00 Set the pump end point at 4 ft. from the bottom
14 5 Use the hysteresis far type of trip to keep the pump on while
pumping the level down
15 0.00 Begin the alarm trip point at the bottom because any signal
below the zero point will indicate loss of echo or
communication
16 5.00 End the alarm trip point at 5 ft. for high level alarm
17 4 Any signal higher than 5 ft. or lower than 0 ft. will cause the
alarm relay to open
Volume
29 1 Flat bottom tank
32 10 Distance from sensor to bottom of tank. The Controller
subtracts the measured distance from the Tank Span to display
product level.
1 0 f t
4 f t
1 f t
6 f t
9 f t