1
2
3
4
Upper
limit
ON
OFF
Figure 47: Off Delay
1
Measured value
2
Shorter than the defined time period
3
Output switches to OFF
4
Output switches to ON
Values are possible from 0 ms (default value) to 4,000 ms.
7.3.7.5
Setting the calibration
The display for setting the calibration will vary depending on the settings in the
Measure‐
ment
tab.
Distance
Shift
This setting is used to move the measured value to a fixed value. A corresponding cor‐
rection value (shift) is added to or subtracted from the measured value of the sensor
head.
Span
This value is selected according to the ratio of the measurement error to the measuring
range. It is used for:
•
compensating for a deviation caused by a tilted installation (distance)
•
measuring the thickness of glass (so that refraction may be taken into account)
In a distance measurement, both values must usually be adjusted. With the thickness
measurement type (for measuring the thickness of glass), it is important to set the cali‐
bration factor (span) to the correct value to ensure a precise measurement and to com‐
pensate for the refraction index of the measured material. Only the span value can be
set for the thickness measurement.
Teaching-in is a recommended process. For the distance measurement, two different
objects which are far apart must be placed in front of the sensor – the distances (refer‐
ence values) must be known.
Teaching-in the distance measurement
7
OPERATION
44
O P E R A T I N G I N S T R U C T I O N S | OD5000
8021391//2017-10-06 | SICK
Subject to change without notice
