Keyence BL-180 User Manual download pdf (Page 12)

1.1 BL-180 Connections

Hints on correct use

Trigger (TIM) input

Set the trigger input to be long enough to allow the laser beam to cover the entire

bar code.

If the trigger input needs to be on for only a short period of time, select one-shot

mode.

Inﬂuence from mirror surface

If a mirror surface (metallic surface) is near the bar code and the laser beam re-

flects off the mirror, the BL-180 may cause a read error. Protect the unit from the

influence of a mirror surface by covering the surface or changing the bar code la-

bel position.

Bar code pitch

Do not place several bar codes in the field of the laser beam, unless you are in

multi-label read mode (Multi 3).

If you use multi-label read mode (multi 3), the BL-180 can simultaneously read 2

to 4 bar codes in the field of the laser beam.

Inﬂuence from photoelectric sensor

When using a photoelectric sensor to control trigger, block the sensor beam so it

does not enter the BL-180 optical pickup.

The beam from the photoelectric sensor can interfere with the BL-180, deteriorat-

ing reading performance. If this case, reposition the photoelectric sensor.

OK/NG

STABILITY

BL-180

Optical

pickup

Light

source

Object

Bar code

OK/NG

STABILITY

BL-180

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Keyence BL-180 User Manual Page 12