User manual
Installation
5Installation
5.1Positioning
Sensor location depends on the application. Before deciding on a
location, you need to be aware of the ambient temperature of the
location, the atmospheric quality of the location, and the possible
electromagneticinterferenceinthatlocation,accordingtothesections
describedabove.Ifyouplantouseairpurging,you
needtohavean
air connection available. Wiring and conduit runs must be
considered,includingcomputerwiringandconnections,ifused.
5.1.1DistancetoObject
The desired spot size on the target will determine the maximum
measurement distance. To avoid erroneous readings the target spot
size must completely fill the
entire field of view of the sensor.
Consequently, the sensor mustbepositionedsothefield ofview is
the same as or smaller than the desired target size. For a list
indicatingtheavailableoptics,seesection 3.2
Optical Specifications
onpage6.
Theactualspotsizeforanydistancecanbe calculatedbyusingthe
following formula. Divide the distance D by your model’s D:S
number. For example, for a unit with D:S = 10:1, if the sensor is
400mm(15.7in.)fromthetarget,divide400by
10(15.7by10),which
givesyouatargetspotsizeofapproximately40mm(1.57in.).
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