Setting reading mode (Teach in)
During the setup procedure the sensor adjusts
automaticaly the optimum combination of red, green or
blue emission, dark/light function and switching
threshold:
- The light emission is set to red, green or blue to
maximize the contrast between the mark and the
background reading.
- The dark or light function is selected on the basis of
the reading of a darker or lighter mark with respect to
the background.
- The switching threshold is set halfway between the
acquired mark and background values.
1. Place the mark under the light spot and don’t move the
mark for a few seconds while reading is taking place.
2. Press the SET key until the green LED turns off. The
sensor acquires the mark alternating the red, green and
blue emission until the most effective emission
combination is achieved.
3. Place the background under the light spot and don’t
move the mark for a few seconds until the emission
color is stable.
4. Press the SET key. The green LED blinks on briefly. The
sensor acquires the background
alternating the red,
green and blue emission.
5. The green LED continuously on indicates the mark and
background acquisition was correct and the sensor is
ready.
If the green LED blinks slowly, the contrast difference
is insufficient. To restore the previous setting, press
the SET key again.
Setting the switching threshold manually
The switching threshold can be adjusted to the
application. The blinking pattern on the segment display
indicates by how much the switching threshold deviates
from the threshold output value.
1. Press the + or – key:
The first 3 LEDs from the left turn on.
2. To increase the switching threshold, press the + key
multiple times. The segment display moves to the
right.
To reduce the threshold value, press the – key multi-
ple times. The segment display moves to the left.
3. To store the current threshold value, press the SET
key or wait 30 s.
Enabling the keys
The keys are disabled after the sensor is turned on. This
protects the settings. To enable the keys:
1. Hold down the SET key for 5 s until the orange
KEYLOCK LED turns on.
Note:
The keys are automatically disabled after 2 minutes of
inactivity (no keys pressed during that time).
Selecting light-on or dark-on
The sensor automatically selects light-on or dark-on
switching during setup.
Light-on:
For dark background and light marking.
Dark-on:
For light background and dark marking.
Green LED
Function/Error
Off
Data are being read
On
Settings correct, sensor is ready
Fast blinking
Output short circuit or output current
exceeded
Slow blinking
The settings or the acquisition of data
are incorrect, the sensor is not opera-
tive. Causes:
- The contrast between the mark and
the background is insufficient
- The acquisition of the new mark or of
the new background is incorrect or
not stored.
Operational and Error indication
Photoelectric Sensors
Contrast Sensor BKT 67M-003/004-U-S92
No. 856 493 E
w
Edition 1006
Fig. 2: Dimensions
Indicators and keys
1 Yellow LED OUT
Output function indicator
LED on: Output active
2 Green LED READY
Power indicator
LED on: Sensor ready
LED blinks: Output overload
3 Orange LED DELAY
Time delay indicator
LED on: Time delay is enabled
LED off: Time delay is disabled.
4 Orange LED KEYLOCK
Indicates key status
LED on: Keys enabled and operable
LED off: Keys locked
PNP or NPN setting result indication
LED blinks 1x: PNP output is set.
LED blinks 2x: NPN output is set.
5 Segment display (Bargraph)
Displays switching threshold level
6 + key
Raises switching threshold incrementally.
7 SET key
Used for acquiring the mark and background.
8 – key
Reduces switching threshold incrementally.
Installation
The sensor can be mounted using the through-holes
(
φ
3.5 mm) or the M5 tapped holes (max. depth 6 mm).
Caution: Excessively long screws may damage the
sensor.
To change the reading direction (lateral or frontal),
exchange the lens with the cover cap.
If the material is very shiny
(i.e. plastic or metal plate) it is
advisable to tilt the reading
head 5° to 20° in relation to the
material that has to be read and
to the direction of its
movement.
The connector block can be
locked in 5 various positions.
5
6
Connections
Fig. 1: Wiring diagram, pin configuration
Safety Notes
These photoelectric sensors may not be used in
applications where personal safety depends on
proper function of the devices (not safety
designed per EU machine guideline). Read these
operating instructions carefully before putting the
device into service.
The CE Marking confirms that our products
conform to the EC Directives 2004/108/EEC
(EMC) and the EMC Law.
In our EMC Laboratory, which is accredited by the
DATech for Testing of Electromagnetic Compatibility,
proof has been documented that these Balluff products
meet the EMC requirements of the harmonized standard
EN 60947-5-2.
Order Code
Contrast Sensor
Light spot
BKT0003
BKT 67M-003-U-S92
vertical
BKT0004
BKT 67M-004-U-S92
horizontal
Turning time delay (DELAY) on/off
Standard configuration (factory setting): Output delay
off.
To enable slower sensor interfaces to detect shorter
pulses as well, turn on the output delay. This increases
the minimum length of the output signal to 20 ms.
Turning on the output delay
1. Press
+
and
–
contemporaneously for 2 sec. until the
Delay LED turns on.
Turning off the output delay
1. Press
+
and
–
contemporaneously for 2 sec. until the
Delay LED turns off.
without
delay
with
delay
Fig. 3: Output without and with delay
Setting reading mode (Teach in)
During the setup procedure the sensor adjusts
automaticaly the optimum combination of red, green or
blue emission, dark/light function and switching
threshold:
- The light emission is set to red, green or blue to
maximize the contrast between the mark and the
background reading.
- The dark or light function is selected on the basis of
the reading of a darker or lighter mark with respect to
the background.
- The switching threshold is set halfway between the
acquired mark and background values.
1. Place the mark under the light spot and don’t move the
mark for a few seconds while reading is taking place.
2. Press the SET key until the green LED turns off. The
sensor acquires the mark alternating the red, green and
blue emission until the most effective emission
combination is achieved.
3. Place the background under the light spot and don’t
move the mark for a few seconds until the emission
color is stable.
4. Press the SET key. The green LED blinks on briefly. The
sensor acquires the background
alternating the red,
green and blue emission.
5. The green LED continuously on indicates the mark and
background acquisition was correct and the sensor is
ready.
If the green LED blinks slowly, the contrast difference
is insufficient. To restore the previous setting, press
the SET key again.
Setting the switching threshold manually
The switching threshold can be adjusted to the
application. The blinking pattern on the segment display
indicates by how much the switching threshold deviates
from the threshold output value.
1. Press the + or – key:
The first 3 LEDs from the left turn on.
2. To increase the switching threshold, press the + key
multiple times. The segment display moves to the
right.
To reduce the threshold value, press the – key multi-
ple times. The segment display moves to the left.
3. To store the current threshold value, press the SET
key or wait 30 s.
Enabling the keys
The keys are disabled after the sensor is turned on. This
protects the settings. To enable the keys:
1. Hold down the SET key for 5 s until the orange
KEYLOCK LED turns on.
Note:
The keys are automatically disabled after 2 minutes of
inactivity (no keys pressed during that time).
Selecting light-on or dark-on
The sensor automatically selects light-on or dark-on
switching during setup.
Light-on:
For dark background and light marking.
Dark-on:
For light background and dark marking.
Green LED
Function/Error
Off
Data are being read
On
Settings correct, sensor is ready
Fast blinking
Output short circuit or output current
exceeded
Slow blinking
The settings or the acquisition of data
are incorrect, the sensor is not opera-
tive. Causes:
- The contrast between the mark and
the background is insufficient
- The acquisition of the new mark or of
the new background is incorrect or
not stored.
Operational and Error indication
Photoelectric Sensors
Contrast Sensor BKT 67M-003/004-U-S92
No. 856 493 E
w
Edition 1006
Fig. 2: Dimensions
Indicators and keys
1 Yellow LED OUT
Output function indicator
LED on: Output active
2 Green LED READY
Power indicator
LED on: Sensor ready
LED blinks: Output overload
3 Orange LED DELAY
Time delay indicator
LED on: Time delay is enabled
LED off: Time delay is disabled.
4 Orange LED KEYLOCK
Indicates key status
LED on: Keys enabled and operable
LED off: Keys locked
PNP or NPN setting result indication
LED blinks 1x: PNP output is set.
LED blinks 2x: NPN output is set.
5 Segment display (Bargraph)
Displays switching threshold level
6 + key
Raises switching threshold incrementally.
7 SET key
Used for acquiring the mark and background.
8 – key
Reduces switching threshold incrementally.
Installation
The sensor can be mounted using the through-holes
(
φ
3.5 mm) or the M5 tapped holes (max. depth 6 mm).
Caution: Excessively long screws may damage the
sensor.
To change the reading direction (lateral or frontal),
exchange the lens with the cover cap.
If the material is very shiny
(i.e. plastic or metal plate) it is
advisable to tilt the reading
head 5° to 20° in relation to the
material that has to be read and
to the direction of its
movement.
The connector block can be
locked in 5 various positions.
5
6
Connections
Fig. 1: Wiring diagram, pin configuration
Safety Notes
These photoelectric sensors may not be used in
applications where personal safety depends on
proper function of the devices (not safety
designed per EU machine guideline). Read these
operating instructions carefully before putting the
device into service.
The CE Marking confirms that our products
conform to the EC Directives 2004/108/EEC
(EMC) and the EMC Law.
In our EMC Laboratory, which is accredited by the
DATech for Testing of Electromagnetic Compatibility,
proof has been documented that these Balluff products
meet the EMC requirements of the harmonized standard
EN 60947-5-2.
Order Code
Contrast Sensor
Light spot
BKT0003
BKT 67M-003-U-S92
vertical
BKT0004
BKT 67M-004-U-S92
horizontal
Turning time delay (DELAY) on/off
Standard configuration (factory setting): Output delay
off.
To enable slower sensor interfaces to detect shorter
pulses as well, turn on the output delay. This increases
the minimum length of the output signal to 20 ms.
Turning on the output delay
1. Press
+
and
–
contemporaneously for 2 sec. until the
Delay LED turns on.
Turning off the output delay
1. Press
+
and
–
contemporaneously for 2 sec. until the
Delay LED turns off.
without
delay
with
delay
Fig. 3: Output without and with delay
Setting reading mode (Teach in)
During the setup procedure the sensor adjusts
automaticaly the optimum combination of red, green or
blue emission, dark/light function and switching
threshold:
- The light emission is set to red, green or blue to
maximize the contrast between the mark and the
background reading.
- The dark or light function is selected on the basis of
the reading of a darker or lighter mark with respect to
the background.
- The switching threshold is set halfway between the
acquired mark and background values.
1. Place the mark under the light spot and don’t move the
mark for a few seconds while reading is taking place.
2. Press the SET key until the green LED turns off. The
sensor acquires the mark alternating the red, green and
blue emission until the most effective emission
combination is achieved.
3. Place the background under the light spot and don’t
move the mark for a few seconds until the emission
color is stable.
4. Press the SET key. The green LED blinks on briefly. The
sensor acquires the background
alternating the red,
green and blue emission.
5. The green LED continuously on indicates the mark and
background acquisition was correct and the sensor is
ready.
If the green LED blinks slowly, the contrast difference
is insufficient. To restore the previous setting, press
the SET key again.
Setting the switching threshold manually
The switching threshold can be adjusted to the
application. The blinking pattern on the segment display
indicates by how much the switching threshold deviates
from the threshold output value.
1. Press the + or – key:
The first 3 LEDs from the left turn on.
2. To increase the switching threshold, press the + key
multiple times. The segment display moves to the
right.
To reduce the threshold value, press the – key multi-
ple times. The segment display moves to the left.
3. To store the current threshold value, press the SET
key or wait 30 s.
Enabling the keys
The keys are disabled after the sensor is turned on. This
protects the settings. To enable the keys:
1. Hold down the SET key for 5 s until the orange
KEYLOCK LED turns on.
Note:
The keys are automatically disabled after 2 minutes of
inactivity (no keys pressed during that time).
Selecting light-on or dark-on
The sensor automatically selects light-on or dark-on
switching during setup.
Light-on:
For dark background and light marking.
Dark-on:
For light background and dark marking.
Green LED
Function/Error
Off
Data are being read
On
Settings correct, sensor is ready
Fast blinking
Output short circuit or output current
exceeded
Slow blinking
The settings or the acquisition of data
are incorrect, the sensor is not opera-
tive. Causes:
- The contrast between the mark and
the background is insufficient
- The acquisition of the new mark or of
the new background is incorrect or
not stored.
Operational and Error indication
Photoelectric Sensors
Contrast Sensor BKT 67M-003/004-U-S92
No. 856 493 E
w
Edition 1006
Fig. 2: Dimensions
Indicators and keys
1 Yellow LED OUT
Output function indicator
LED on: Output active
2 Green LED READY
Power indicator
LED on: Sensor ready
LED blinks: Output overload
3 Orange LED DELAY
Time delay indicator
LED on: Time delay is enabled
LED off: Time delay is disabled.
4 Orange LED KEYLOCK
Indicates key status
LED on: Keys enabled and operable
LED off: Keys locked
PNP or NPN setting result indication
LED blinks 1x: PNP output is set.
LED blinks 2x: NPN output is set.
5 Segment display (Bargraph)
Displays switching threshold level
6 + key
Raises switching threshold incrementally.
7 SET key
Used for acquiring the mark and background.
8 – key
Reduces switching threshold incrementally.
Installation
The sensor can be mounted using the through-holes
(
φ
3.5 mm) or the M5 tapped holes (max. depth 6 mm).
Caution: Excessively long screws may damage the
sensor.
To change the reading direction (lateral or frontal),
exchange the lens with the cover cap.
If the material is very shiny
(i.e. plastic or metal plate) it is
advisable to tilt the reading
head 5° to 20° in relation to the
material that has to be read and
to the direction of its
movement.
The connector block can be
locked in 5 various positions.
5
6
Connections
Fig. 1: Wiring diagram, pin configuration
Safety Notes
These photoelectric sensors may not be used in
applications where personal safety depends on
proper function of the devices (not safety
designed per EU machine guideline). Read these
operating instructions carefully before putting the
device into service.
The CE Marking confirms that our products
conform to the EC Directives 2004/108/EEC
(EMC) and the EMC Law.
In our EMC Laboratory, which is accredited by the
DATech for Testing of Electromagnetic Compatibility,
proof has been documented that these Balluff products
meet the EMC requirements of the harmonized standard
EN 60947-5-2.
Order Code
Contrast Sensor
Light spot
BKT0003
BKT 67M-003-U-S92
vertical
BKT0004
BKT 67M-004-U-S92
horizontal
Turning time delay (DELAY) on/off
Standard configuration (factory setting): Output delay
off.
To enable slower sensor interfaces to detect shorter
pulses as well, turn on the output delay. This increases
the minimum length of the output signal to 20 ms.
Turning on the output delay
1. Press
+
and
–
contemporaneously for 2 sec. until the
Delay LED turns on.
Turning off the output delay
1. Press
+
and
–
contemporaneously for 2 sec. until the
Delay LED turns off.
without
delay
with
delay
Fig. 3: Output without and with delay
