General information
Leuze electronic GmbH + Co. KG
ODSL 30
4
1
General information
1.1
Explanation of symbols
The symbols used in this technical description are explained below.
1.2
Important terms
Phase measurement
Distance measurement procedure, which determines the distance of an object by the shift of the
phase angle of the light reflected from the object.
Uniqueness range
Due to the periodicity of the sinusoid, the phase position of the signals received by the ODSL 30 lim
-
its the determination of unique measurement values to within a specific interval. The length of this
interval is called the uniqueness range. A large uniqueness range is equivalent to high background
suppression (see see chapter 3.8.2).
Absolute measurement accuracy
Shows the possible divergence of the measurement value from the anticipated value through
changes in the environmental conditions during the measurement process. Higher accuracy is given
at constant environmental conditions
Repeatability
Measurement distance change with repeated measurement at the same output signal (observe the
same boundary conditions as with resolution).
Resolution
The smallest possible change in distance of the measurement object, which causes a unique change
of the output signal.
Referencing
Device function of the ODSL 30… for the compensation of a possible temperature drift. A referencing
should be carried out before each exact measurement. The referencing is activated via a separate
device input and is automatically carried out once after the device is switched on.
Diffuse reflection
Return and/or degree of reflection of the radiated light.
Measurement time
The measurement time depends on the selected uniqueness range and the object diffuse reflec
-
tance (see see chapter 3.8.2).
Readiness delay
The delay before start-up indicates the point in time when the first valid measurement can be
obtained after switching on.
Light switching/Dark switching
Specifies the behavior of the switching output: light switching if an object is located within the config
-
ured distance range, dark switching if an object is located outside of the configured distance range.
Attention
This symbol precedes text messages which must strictly be observed. Failure to
observe the provided instructions could lead to personal injury or damage to
equipment.
Attention, laser radiation
This symbol warns of possible danger caused by hazardous laser radiation.
Note
This symbol indicates text passages containing important information.
