SICK DT1000 User Manual

8.1.4 Defining the measuring direction
If the measuring direction is positive, the output distance value is equal to the distance
value measured by the measuring module.
If the measuring direction is negative, the measured distance value is multiplied by a
factor of -1.
The change in direction affects both the output value for the distance and the output
value for the speed.
Parameter Factory setting
Positive:
Output distance value = measured distance value + distance off‐
set
Positive
Negative:
Output distance value = measured distance value x (-1) + distance
offset
8.1.5 Configuring the rain and snow filter
The measurement certainty with precipitation can be increased using the connectible
rain and snow filter.
Precipitation like rain or snow along the measuring path can lead to false echos. The
sensor detects both false echos and the relevant echo of the measuring object. In con‐
trast to the relevant echo, false echos occur with temporal irregularity and exhibit high
statistical scatter of distance values. The multi-echo technology of the Dx1000 makes it
possible to differentiate false echos from relevant echos.
The rain and snow filter can be set to 5 different levels to fit the application. A higher
filter level allows false echos to be ignored over a longer period of time, whereby the
sensor is more resistant to precipitation.
When the distance changes erratically (e.g. when scanning edges), activation of the rain
and snow filter extends the response time (response time of the sensor to changes in
distance). The response time varies both with the set filter depth and with the measure‐
ment cycle time. The maximum expected response time is given in the following table.
The response time when activating the rain and snow filter remains unchanged with
continual changes in the distance with time.
Table 30: Maximum response time due to the rain and snow filter
Measurement
cycle time
1 ms 4 ms 16 ms 64 ms 128 ms
Filter depth 1 1 ms 4 ms 16 ms 64 ms 128 ms
Filter depth 2 8 ms 32 ms 128 ms 512 ms 1,024 ms
Filter depth 3 16 ms 64 ms 256 ms 1,024 ms 2,048 ms
Filter depth 4 24 ms 96 ms 384 ms 1,536 ms 3,072 ms
Filter depth 5 32 ms 128 ms 512 ms 2,048 ms 4,096 ms
REFERENCE 8
8019329/12TZ/2019-03-28 | SICK O P E R A T I N G I N S T R U C T I O N S | DT1000 and DL1000
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Subject to change without notice

SICK DT1000 Specifications

General

Brand	SICK
Model	DT1000
Category	Accessories
Language	English