Omron ZX Series, Operation Manual

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Through-beam Sensor Heads: RUN Mode Functions Section 3-6
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3-6-2 Reference Incident Level Setting Function
This function registers and stores the current incident level as the refer-
ence incident level. This function is set under the condition that none of the
beam is intercepted. The incident level obtained with none of the beam
intercepted will be the full scale (FS) value, i.e. the incident beam when
100% of the beam is received.
When this function is used, the display and linear output are automatically
set to the full scale (FS) value. This function can also be used to correct
the incident level when it changes due to contamination on the front-sur-
face glass.
For the setting procedure, refer to 4-3-3 Setting the Refer-
ence Incident Level .
3-6-3 Zero Reset/Release
The following are performed for the zero reset function:
• Setting the display value to 0.
• Setting the linear output to the center output value between two points
set for the monitor focus when 0 is displayed (default current output: 12
mA, default voltage output: 0 V).
The zero reset can be also released.
Refer to 4-3-4 Zero Reset Function .
Sensor Head (Emitter)
Sensor Head (Receiver)
Incident level: 85% displayed and output.
Perform the reference receiving
amount setting.
Press the DOWN key for 3
seconds or more when none of the
beam is intercepted.
Incident level: 100% displayed and output.
The inclination of the linear output value against the actual distance
does not change when the zero reset is executed.
An error will occur if the zero reset is performed outside the mea-
surement range.
POINT