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1
Ultrasonic direct detection sensor
UB250-F77-E2-V31
R
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ase
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20
1
6
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2
-1
2
1
4
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1
D
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23
32
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l
Technical data
General specifications
Sensing range
20 ... 250 mm
Adjustment range
45 ... 250 mm
Dead band
0 ... 20 mm
Standard target plate
20 mm x 20 mm
Transducer frequency
approx. 400 kHz
Nominal ratings
Time delay before availability t
v
≤
150 ms
Limit data
Permissible cable length
max. 300 m
Indicators/operating means
LED yellow
switching state and flashing: Teach-In
Electrical specifications
Rated operating voltage U
e
24 V DC
Operating voltage U
B
20 ... 30 V DC , ripple 10 %
SS
; 12 ... 20 V DC sensitivity
reduced to 90 %
No-load supply current I
0
≤
20 mA
Input
Input type
1 program input
Level
low level : 0 ... 0.7 V (Teach-In active)
high level : U
B
or open input (Teach-In inactive)
Input impedance
16 k
Ω
Pulse length
≥
3 s
Output
Output type
1 switch output PNP, NO
Rated operating current I
e
200 mA , short-circuit/overload protected
Voltage drop U
d
≤
2 V
Switch-on delay t
on
≤
50 ms
Repeat accuracy
± 1 mm
Switching frequency f
10 Hz
Range hysteresis H
typ. 2.5 mm
Off-state current I
r
≤
0.01 mA
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
IEC 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
≤
36 V
Model Number
UB250-F77-E2-V31
Ultrasonic direct detection sensor
Features
• Miniature design
• Program input
• Degree of protection IP67
• Switching status indicator, yellow
LED
Diagrams
Characteristic response curve
Distance X [mm]
Distance Y [mm]
X
Y
0 50 100 150 200 250 300
50
40
30
20
10
0
-10
-20
-30
-40
-50
