594
Ultrasonic Sensors
3
Ultrasonic Sensors,
Thru-Beam Sensors,
cylindrical
3
.2
Ultrasonic Sensors,
Diffuse Mode Sensors,
cylindrical
3
.1
Ultrasonic Sensors,
Thru-Beam Sensors,
rectangular types
3
.2
Ultrasonic Sensors,
Diffuse Mode Sensors,
rectangular types
3
.1
Ultrasonic Sensors,
Sensors for Separate Evaluation
3
.3
Ultrasonic Sensors,
Double Sheet Sensors
3
.4
Ultraschallsensoren,
Ultrasonic Sensor Accessories
3
.5
Germany: +49 621 776-4411
Consider the General Notes on the Information in the Pepperl+Fuchs Product Catalogs
Pepperl+Fuchs Group
fa-info@de.pepperl-fuchs.com
USA: +1 330 486 0001
fa-info@us.pepperl-fuchs.com
Singapore: +65 6779 9091
fa-info@sg.pepperl-fuchs.com
Copyright Pepperl+Fuchs
Ultrasonic retroreflective sensor
The sender and receiver are located in the same housing. The ultrasonic
beam is reflected by a fixed reflector. Objects that appear in the sound
beam change the measured distance and absorb or deflect the sound.
Features:
•
Simple installation, just one sensing head
•
Reliable detection of problematic objects (sound-absorbing objects,
angled surfaces)
Ultrasonic thru-beam sensor
The emitter and receiver are separate and mounted opposite each other.
If the ultrasonic beam is interrupted by an object, the switching output is
activated.
Features:
•
Large distance between emitter and receiver
•
Low susceptibility to interference, suitable for difficult operating
conditions
•
Fast response times
•
Two separate units to wire
Ultrasonic double feed detection
Ultrasonic double feed detection is performed using ultrasonic thru-beam
sensors, consisting of an ultrasonic emitter and an ultrasonic receiver
with integrated evaluation that are optimized especially for these applica-
tions:
•
Double sheet control
•
Label detection
•
Adhesive strip detection
•
Double feed detection
Double sheet control can detect three different states:
•
No sheet
•
Single sheet
•
Double sheet
During detection of labels and splices, the system can distinguish the tag
material from the labels and the adhesive strip from the basic material.
Double feed detection is similar to double sheet control and distinguish-
es between no, one, or two instances of a material (e.g., sheet metals,
wooden boards, glass panels).
2.
Output function
Analog distance measurement
The sensor determines the distance from an object by measuring the
time interval between emitting an ultrasonic signal and the arrival of the
reflected echo. The sensors operate in diffuse mode. Depending on the
model, different analog outputs are available:
•
Analog output voltage: 0 V ... 10 V
•
Analog output current: 4 mA ... 20 mA
•
Serial output, RS232
•
IO-Link
Trip point mode
In the case of sensors with independent trip points, the output is activated
if the object is located within the respective switching area.
This trip point can be set via Teach-in or a potentiometer.
Switching point 1
Object
Switching point 2
Sensor
Blind zone A1 active
A2 active
Window mode
In window mode, the output is activated if the object is located in the
switching window. The window limits are configurable.
Window limits A1
Object
Window limits A2
Sensor
Normally
open
Normally
closed
Blind zone
Output
passive
Output
passive
Output
active
Output
active
Output
active
Sensing range
Output
passive
Ultrasonic Sensors
