Omron ZW Series User Manual page 36

Chapter 1
About Installation and Connection
● Basic precautions for installation
Do not install the Sensor Head in a place where strong light hits the laser emitter/
receiver section of the Sensor Head. Also, if a workpiece has a shiny surface, the light
from the lighting will be reflected and a malfunction may occur. In such a case, prevent
reflection by, for example, covering the light to stop reflection.
■ Measuring range
With the ZW series, the measurement center distance is expressed as 0 with the NEAR
side as + and the FAR side as -.
●ZW-S20
Measurement center
distance 20 mm
ZW
1-8
User's Manual
NEAR side 1 mm
Measuring
center 0 mm
Measuring range
FAR side 1 mm
●ZW-S40
Measurement center
distance 40 mm
Measuring range
NEAR side 6 mm
Measuring
center 0 mm
FAR side 6 mm