Adjustment response speed, Sensitivity, Zero adjustment – KEYENCE LB-70(W) Series User Manual

Page 10

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10

2 ms

60 ms

0.15 ms

0.7 ms

20 ms

500 ms

For measurements requiring
high accuracy.

Normal setting for detecting
and measuring targets.

For detecting targets moving
at high speed on the production
line. Detects eccentricity and
deflection of revolving targets.

BLACK

AUTO

WHITE

Suitable for black targets.

KEYENCE's original auto gain
function instantly assesses the
gain level, which varies according
to conditions such as color and
material, for optimum measurement.

Suitable for white targets.

4

-4

O-ADJ

V

Panel meter

Distance

Analog output
voltage

Reference

position

4

-4

SPAN

Panel meter

Distance

10 mm

Analog output
voltage

V

Reference

position

LB-11

LB-12

40 mm

ADJUSTMENT

Response speed

Select the desired response speed using the response speed selector
switch.

Sensitivity

Select the appropriate sensitivity using the sensitivity selector switch.

Zero adjustment

1. When the target is displaced from the reference position, the analog

output voltage may deviate from the zero point. The 0-ADJ adjust-
ment trimmer can be used to adjust the reading to the zero point.

2. Confirm that the value of the output voltage is in proportion to the

displacement of the target. If not, adjust the output voltage with the
SPAN adjustment trimmer.

3. Confirm that the analog output voltage is 0 v at the reference position.

If not, repeat the above adjustment procedures.

LB-70 (W)

LB-72 (W)

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