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Ultrasonic direct detection sensor UB250-F77-F-V31
Technical data
General specifications
Sensing range 35 ... 250 mm
Dead band 0 ... 35 mm
Standard target plate 20 mm x 20 mm
Transducer frequency approx. 400 kHz
Response delay ≤ 50 ms
Nominal ratings
Model Number
UB250-F77-F-V31
Ultrasonic direct detection sensor
Features
• Miniature design
• Frequency output
• Program input
• Degree of protection IP67
• Switching status indicator, yellow
LED
Diagrams
Characteristic response curve
Distance Y [mm]
50
40
30
20
10
0
-10
-20
-30
-40
-50
0 50 100 150 200 250 300
Distance X [mm]
Y
Time delay before availability t
Limit data
Permissible cable length max. 300 m
Indicators/operating means
LED yellow object inside the scanning range
Electrical specifications
Rated operating voltage U
Operating voltage U
No-load supply current I
Input
Input type 1 program input
Level low level : 0 ... 0.7 V (Teach-In active)
Input impedance 16 kΩ
Pulse length ≥ 3 s
Output
Output type Frequency output , PNP
Rated operating current I
Resolution Standard 2 Hz / mm
Repeat accuracy ± 2.5 %
Off-state current I
Output frequency frequency : 70 ... 500 Hz ( 35 ... 250 Hz ) , adjustable
Temperature influence + 0.17 %/K
Ambient conditions
Ambient temperature -25 ... 70 °C (-13 ... 158 °F)
Storage temperature -40 ... 85 °C (-40 ... 185 °F)
Shock resistance 30 g , 11 ms period
Vibration resistance 10 ... 55 Hz , Amplitude ± 1 mm
Mechanical specifications
Connection type M8 x 1 connector , 4-pin
Degree of protection IP67
Material
Housing Polycarbonate
Transducer epoxy resin/hollow glass sphere mixture; polyurethane foam
Installation position any position
Mass 10 g
Tightening torque, fastening screws max. 0.2 Nm
Compliance with standards and
directives
Standard conformity
Standards EN 60947-5-2:2007 + A1:2012
Approvals and certificates
UL approval cULus Listed, General Purpose
CSA approval cCSAus Listed, General Purpose
CCC approval CCC approval / marking not required for products rated
X
B
r
v
e
0
e
≤ 150 ms
24 V DC
20 ... 30 V DC , ripple 10 %SS ; 12 ... 20 V DC sensitivity
reduced to 90 %
≤ 20 mA
high level : U
100 mA , short-circuit/overload protected
≤ 0.01 mA
IEC 60947-5-2:2007 + A1:2012
≤36 V
or open input (Teach-In inactive)
B
Release date: 2016-02-12 14:50 Date of issue: 2016-02-12 233260_eng.xml
Refer to “General Notes Relating to Pepperl+Fuchs Product Information”.
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Ultrasonic direct detection sensor UB250-F77-F-V31
Dimensions
23
12
3.2
31
189
M8 x 1
Electrical Connection
Pinout
1
2
4
3
25
ø3.2
322
3 14
+U
B
ET (Frequency selection)
Frequency output
-U
B
3.2
17
24
13
Wire colors in accordance with EN 60947-5-2
1 BN
2 WH
3 BU
4 BK
Refer to “General Notes Relating to Pepperl+Fuchs Product Information”.
(brown)
(white)
(blue)
(black)
Release date: 2016-02-12 14:50 Date of issue: 2016-02-12 233260_eng.xml
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Ultrasonic direct detection sensor UB250-F77-F-V31
Accessories
UB-PROG4-V31
Programming unit for ultrasonic sensors with Teach-in input at pin 2
OMH-ML7-01
Mounting aid for ML7 and ML8 series, Mounting bracket
V31-GM-2M-PVC
Female cordset, M8, 4-pin, PVC cable
V31-WM-2M-PVC
Female cordset, M8, 4-pin, PVC cable
Description of Sensor Function
The ultrasonic sensor transmits ultrasonic packages in quick succession and responds to their reflection off the detected object. It has a frequency output that delivers a square wave signal. The frequency of this signal changes linearly with the distance of the object. Two frequency
ranges are available.
Description of the Frequency Selection
Proceed as follows to select the frequency range:
Standard frequency 70 ... 500 Hz
1. Connect terminal ET to +U
2. Switch on the operating voltage.
3. The sensor will be ready for operation after 3 seconds.
Low frequency 35 ... 250 Hz
1. Connect terminal (ET) to -U
2. Switch on the operating voltage.
3. The sensor will be ready for operation after 3 seconds.
ET unusable area
Open or +U
B
-U
B
or leave it open.
B
.
B
Sensing range
35 ... 250 mm
Undefined 70 ... 500 Hz 500 Hz
Undefined 35 ... 250 Hz 250 Hz
> 250 mm or no object
Note:
Switching the potential on ET during operation will not change the frequency range.
Safety Note
The use of this device in applications, where the safety of persons depends from the devices function, is not allowed!
Release date: 2016-02-12 14:50 Date of issue: 2016-02-12 233260_eng.xml
Refer to “General Notes Relating to Pepperl+Fuchs Product Information”.
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