Leuze KRT3CM Series User manual

KRT3CM, KRT3CW, KRT3CL1
Multicolor contrast sensor, White light contrast sensor, Laser
contrast sensor
Leuze electronic GmbH + Co. KG
[email protected]
In der Braike 1 73277 Owen Tel.: [phone]
We reserve the right to make changes – 2023/02/07 – 50148486-01
www.leuze.com•

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Safety
The laser safety notice applies only for device type KRT3CL1… with a laser as the
light source.
ATTENTION
LASER RADIATION – CLASS 1 LASER PRODUCT
The device satisfies the requirements of IEC 60825-1:2014 / EN
60825-1:2014+A11:2021 safety regulations for a product of laser
class1 as well as the U.S.21CFR1040.10 regulations with deviations
corresponding to Laser Notice No.56 from May 8, 2019.
ÄObserve the applicable statutory and local laser protection regula-
tions.
ÄThe device must not be tampered with and must not be changed
in any way.
There are no user-serviceable parts inside the device.
CAUTION! Opening the device can lead to dangerous exposure to
radiation!
Repairs must only be performed by Leuzeelec-
tronicGmbH+Co.KG.
Mounting
1
With glossy objects, fasten the sensor at an inclination of approx. 10° relative to
the object surface.
Sensor adjustment (teach) via teach button
Static 2-point teach
Suitable for manual positioning of the marks (device type KRT3C…S2/…).
Switching threshold in center Switching threshold near the mark
2
Position the light spot of the sensor in front of the background.
Press the teach button for 2…7s. Press the teach button for 7…12s.
The value for the background is ac-
cepted.
The LEDs flash synchronously.
The value for the background is ac-
cepted.
The LEDs flash alternately.
8
EN

Switching threshold in center Switching threshold near the mark
3
Position the light spot of the sensor on the mark.
Press the teach button briefly.
The value for the mark is accepted.
The device is in RUN mode. The yellow
LED illuminates.
The switching threshold is set in the
center.
The value for the mark is accepted.
The device is in RUN mode. The yellow
LED illuminates.
The switching threshold is set near the
mark.
Dynamic 2-point teach
Suitable for marks moved during automated machine processes (device type
KRT3C…D2/…).
Switching threshold in center Switching threshold near the mark
2
Position the light spot of the sensor in front of the background.
Press the teach button for 2…7s. Press the teach button for 7…12s.
The measurement window opens.
The LEDs flash synchronously.
The measurement window opens.
The LEDs flash alternately.
4
Allow the marks to pass through dynamically.
Press the teach button briefly.
The measurement window closes.
The device is in RUN mode. The yellow
LED is off.
The switching threshold is set in the
center.
The measurement window closes.
The device is in RUN mode. The yellow
LED is off.
The switching threshold is set near the
mark.
Static 1-point teach
Suitable for detecting all marks outside of the reference value (device type
KRT3C…S1/…).
9
EN

Standard sensitivity High sensitivity
5
Position the light spot of the sensor in front of the reference value.
Press the teach button for 2…7s until
the LEDs flash synchronously.
Press the teach button for 7…12s un-
til the LEDs flash alternately.
Release the teach button.
The reference value is accepted.
The device is in RUN mode. The yellow
LED is off.
The standard sensitivity is set.
The reference value is accepted.
The device is in RUN mode. The yellow
LED is off.
The high sensitivity is set.
Switching threshold diagrams
6
Static 2-point teach
A Label with marks
B Received signal
C Switching output for switching threshold in center
D Switching output for switching threshold near the mark
E Switching threshold in center
F Switching threshold near the mark
1 1. Teach point on background
2 2. Teach point on mark
7
Dynamic 2-point teach
A Label with marks
B Received signal
C Switching output for switching threshold in center
D Switching output for switching threshold near the mark
E Switching threshold in center
F Switching threshold near the mark
1 Open measurement window
2 Close measurement window
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