Omron ZX-LDA11

Through-beam Sensor Heads: FUN Mode Functions Section 3-8
83
 Correcting Display Values to Match Actual Width: Two-point Scaling A
Display values can be corrected if there is a discrepancy between the
actual incident beam width and the value displayed on the Amplifier Unit.
When actual widths are known, they are input at two points to correct the
range and offset of display values (see following figure).
To change only the offset without changing the range of
display values, refer to  Offsetting Display Values: One-
point Scaling A.
Example: Two-point Scaling A
S
ensor Head Emitte
r
S
ensor Head Emitte
r
S
ensor Head Receive
r
S
ensor Head Receive
r
Sensing object 1
Despite the actual 2.0-mm incident
beam width, 2.2 mm is displayed.
Sensing object 2
In addition, despite the actual 4.0-mm
incident beam width, 3.6 mm is displayed.
: Scaling value inputs
2.0
2.5
3.0
3.5
4.0
2.0
2.5
3.0
3.5
4.0
2.0
2.5
3.0
3.5
4.0
2.20
2.55
2.90
3.25
3.60
2.20
2.55
2.90
3.25
3.60
Actual incident beam width Actual incident beam widthMeasured value = Display value
Display value
Measured value
There are discrepencies
between actual incident beam
width and display values.
Z157-E1-01C.book Page 83 Thursday, August 31, 2006 5:13 PM