user manual Instruction Manual

DCR-1006A Ultrasonic Controller Rev. A1, 2/14
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MAXdIS (Maximum Distance):
Sets the distance (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. The target acceptance win-
dow is a zone, centered around the current target reading, within which any
target detected will be considered legimate and gured into the Averaging
buer. Any target detected outside of the Window will be considered “out of
range” and will be ignored based on the seng in the Out of Range Samples
parameter (see below). The Filter Window extends both direcons from the
target reading. For example, if the sensor is detecng a target at 5 . and the
Filter Window is set at 1 ., then any target detected between 4 . and 6 . will
be accepted.
OUTRAN (Out of Range Samples):
Determines the number of consecuve target readings that fall outside of the
Filter Window before the “out of range” target is recognized as legimate and
gured into the averaging buer. 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 unl it has been detected for 10 consecuve samples, at which
point it will be qualied as a legimate target. If the “out of range” target was
detected for only 9 consecuve 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 qualied target sample.
SAMP R (Sample Rate):
Sets the interval between target readings. Opons allow rates from 100 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 detecng errant echoes. It is highly
recommended that the Sample Rate be set only as fast as is necessary for the
applicaon. A sample rate of 500 to 1000 mS is usually appropriate for slow
moving tank level appicaons.