The user does this with the SOPAS ET configuration software.
Alternatively, the device can also teach in the working distance by means of the two
function keys. This function is not available on the Lector621 ECO variant.
The focus position is valid for one working distance. The device does not perform auto‐
mated tracking (auto focus) if the working distance changes significantly, for example.
5.3.3 Mounting bracket and reflection prevention
In order to avoid reflections from the surfaces to be scanned, mount the device so that
it is tilted from the perpendicular to the surface.
Figure 10: Mounting angle to use, depending on the application
1
Typical angle 20°
The typical value is 20°.
Depending on the application, an angle of between 0° (bright field light) and 45° (dark
field light) may be advisable.
5.3.4 Reading angle in space
Figure 11: Possible reading angles at which the codes can occur with respect to the field of view.
Table 8: Permissible values
Reading angle Permissible value (limit value)
α tilt angle 0 to 360°
β pitch angle max. ±45° (depending on cell size and symbol size)
γ skew angle max. ±45° (depending on cell size and symbol size)
Distances
a Working distance see "Field of view diagrams", page 29
b Working range see "Field of view diagrams", page 29
5 MOUNTING
28
O P E R A T I N G I N S T R U C T I O N S | Lector621 8022502/15NT/2020-02-11 | SICK
Subject to change without notice
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