Omron ZX Series User Manual

Through-beam Sensor Heads: RUN Mode Functions Section 3-6
74
Refer to 3-8-15 Zero Reset Memory Function.
Receiver
Sensing object
Emitter
This height must be evaluated.
All that is necessary is to reset
zero at the point indicated by the
arrow while measuring.
Example: Use Zero Reset to Evaluate the Height of a Step in the Sensing Object
Measured value
Without zero
reset
Threshold
Threshold
Threshold must be
set to an absolute height.
Acurate measurement
is impossible.
With zero
reset
Zero reset level
Time
The height of the step is always
evaluated in comparison to
the threshold.
Zero
reset.
Zero
reset.
In this case, disabling the zero reset memory is recommended.
POINT

Omron ZX Series Specifications

General

Power Supply Voltage	12 to 24 VDC ±10%
Protection Rating	IP67
Output Type	NPN or PNP
Protection Circuit	Reverse polarity protection, short-circuit protection
Operating Temperature	-25 to 55°C (-13 to 131°F)