KEYENCE BL-180 - Manual (Page 15)

1.2 Installing the BL-180 Series
7
Mounting angle and mounting distance
BL-180
Set the angle and reading distance by referring to the read range characteristics
and angle characteristics described on page 63 and 64.
The allowable reading distance and angle may vary depending on the narrow bar
width of the bar code, the bar code size, and the readability of the bar code. Set
these parameters after performing a test read of the required bar code using the
unit.
Do not set the unit at an angle at which the light-receiving axis is perpendicular to
the surface of the bar code. The beam will be fully reflected into the reader, mak-
ing correct reading impossible (see page 64).
Set the angle so that the light-receiving axis will be centered on the bar codes.
Bar codes of insufficient height may deviate from the desired position in relation
to the light-receiving axis. Be sure to position the unit carefully. (The bar codes
must have a height of at least 3 mm.)
The reading check test mode (see page 17) allows you to set the optimal reading
position.
15.3 12.5
10
°
BL-180
BL-185
Light-receiving axis
33
Note