Omron ZX Series Operation Manual page 96

Through-beam Sensor Heads: T M ode Functions
n Two-point Teaching
The middle point between the first teaching point and the second point is
set as a threshold. With two-point teaching, small steps, such as a sheet of
paper, can be measured.
Sensor Head Emitter
Sensor Head Emitter
Sensor Head Emitter
76
Teaching point 1
First Point
Second Point
Threshold
Example: Two-point Teaching
T1
Sensor Head Receiver
Press the ENT Key
for the first point.
Teaching point 2
T2
Sensor Head Receiver
Sensing object
Threshold
(T1 + T2)/2
Sensor Head Receiver
Sensing object
Section 3-7