4

Z4W-V

Z4W-V

Offset Error vs. Object Material

When detecting a variety of objects successively, refer to the off-

set error graph below. The graph illustrates the change in sensor

output characteristics when black paper is compared to white

paper. To reduce the offset error value, install the Sensor so that

objects are detected at or as close as possible to the measure-

ment point.

The angle characteristics were obtained by detecting an object

with different angles of inclination at the measurement point and

plotting the analog output error resulting from each operation.

The LED Displacement Sensor is designed to detect the front of

an object facing the sensor. Error occurs when the object is posi-

tioned at an oblique angle to the sensor.

Measurement point

(distance in mm)

Offset Error Range

(Typical Example)

Inclined Object

(Typical Example)

Inclination angle (

°)

Obliquely Positioned Object

(Typical Example)

Inclination angle (

°)

White ceramic

Black paper

Rolled steel

plate

Positive

inclination

Negative

inclination

White ceramic

Black paper

Rolled steel

plate

Positive

inclination

Negative

inclination