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Through-beam Sensor Heads: FUN M ode Functions
n Displaying the Width of the Sensing Object: One-point Scaling B
The width of the sensing object can be measured by using two-sensor
operation and one-point scaling, and inverting the display values.
First, perform the two-sensor operation A+B to display the sum of the mea-
sured values for the two Sensor Heads.
Second, set the actual sensing object and set the values to be displayed in
scaling mode.
When selecting the incident level display (L) for auto-scaling, enable invert-
ing display values for the scaling mode so that smaller values are dis-
played when larger intercepted beam widths are measured at the Sensor
Head (i.e., when thinner intercepted beam widths are measured).
When the widths of two sensing objects are known, two-point scaling can
also be used.
Sensor Head
Emitter
1CH
Sensor Head
Receiver
1CH
Measured value = Display value
4.0
5.0
6.0
5 mm is displayed as 50 mm and
the display values are inverted.
86
Refer to 3-8-7 Two-sensor Operation.
Sensing object
Width
B
A
Display value
51.0
50.0
49.0
Example: One-point Scaling B
Sensor Head
Emitter
2CH
First, connect two Amplifier Units
to perform the A + B operation.
1CH
2CH
Current measured value A
+ Measured value B = 5 mm
Sensing object width = 50 mm
Sensor Head
Receiver
2CH
Measured value
4.0
5.0
6.0
: Scaling value input
All display values are offset
and inverted.
Section 3-8
Calculating
Unit
A + B
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