Protective field height
T
he protective field height indicates the range within which the test rod belonging to the
safety light curtain is reliably detected. The size of the safety light curtain determines
the protective field height. The design and construction of the safety light curtain
extends the protective function of a device to the end of the housing without any blind
spots.
Protective field width
The protective field width is the dimension of the light path between sender and
receiver. The maximum protective field width is limited by the scanning range.
Resolution
The resolution describes the size of the smallest object detected by the safety light cur‐
tain in the protective field. The resolution corresponds to the diameter of the test rod
belonging to the safety light curtain, which is reliably detected when in the protective
field.
With the appropriate resolution, the safety light curtain provides finger and hand protec‐
tion.
Scanning range
The scanning range is the maximum protective field width. It is subject to the resolution
variant (14 mm or 30 mm).
The scanning range is reduced by using deflector mirrors and/or a weld spark guard.
Further topics
•
"D
ata sheet", page 57
•
"Deflector mirrors", page 68
•
"Weld spark guard", page 67
3.2 Product characteristics
3.2.1 Absence of blind zones
The design and construction of the safety light curtain extends the protective function
of a de
vice to the end of the housing without any blind spots. The absence of blind
zones reduces the space requirement when integrated in the machine.
3.2.2 Automatic calibration of the protective field width
When switched on, the safety light curtain automatically calibrates to the protective
field width.
3.2.3 Status indicators
The sender and receiver LEDs indicate the operating status of the safety light curtain.
3 P
RODUCT DESCRIPTION
12
O P E R A T I N G I N S T R U C T I O N S | deTec4 Core 8014253/ZOH3/2017-08-04 | SICK
Subject to change without notice