DCR-1006A Level Controller
Rev. B2, 7/15
20
Automation Products Group, Inc.
Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • [email protected]
MAXdIS
(Maximum Distance):
Sets the distance (in the selected Units), beginning at the sensor face, to the
point where the sensor will stop looking for target echoes. Targets detected
beyond the Maximum Distance will be ignored.
WINdOW
(Filter Window):
Sets the width of the target acceptance window (in the selected Units). The
target acceptance window is a zone, centered around the current target read-
ing, within which any target detected will be considered legitimate and figured
into the Averaging buffer. Any target detected outside of the Window will be
considered “out of range” and will be ignored based on the setting in the
Out of
Range Samples
parameter (see below). The Filter Window extends both direc
-
tions from the target reading. For example, if the sensor is detecting a target at
5 ft. and the Filter Window is set at 1 ft., then any target detected between 4 ft.
and
6 ft. will be accepted.
OUTRAN
(Out of Range Samples):
Determines the number of consecutive target readings that fall outside of the
Filter Window before the “out of range” target is recognized as legitimate and
figured into the averaging buffer. For example, suppose the Out Of Range Sam
-
ples
is set to 10. If a target is suddenly detected outside of the Filter Window, it
will be ignored until it has been detected for 10 consecutive samples, at which
point it will be qualified as a legitimate target. If the “out of range” target was
detected for only 9 consecutive samples before moving out of the sensing area,
then it wouldn’t be acknowledged as a target and the reading would stay with
the last qualified target sample.
SAMP R
(Sample Rate):
Sets the interval between target readings. Options allow rates from 80 ms to
1000 ms (once per second). A higher Sample Rate will result in a more rapid
response to target movements. Lowering the Sample Rate will help increase
sensor lifespan and decrease the chance of detecting errant echoes. The
Sample Rate should be set only as fast as is necessary for the application, to
help preserve the life of the transducer. A sample rate of 500 to 1000 ms is usu-
ally appropriate for slow moving tank level appications.
