R
Ultrasonic Sensor With Zone Sensing
Through-beam, Reflective and
Zone Models
H
1 m through-beam for long range
applications
E4B
H
Narrow beam angle of 8° detects
objects as small as 2 x 2 cm
H
Zone models detect objects smoothly
while suppressing interference from
background objects
H
200 kHz provides high immunity from
environmental noise
H
User-selectable normally open and
normally closed operation
Ordering Information
Supply voltage
12 to 24 VDC
Sensing type
Through beam
Through-beam
Sensing distance
1m
50 cm
Zone setting
Distance setting
20 to 70 cm
20 to 70 cm
5 to 20 cm
Cable length
2m
5m
2m
5m
2m
5m
2m
5m
2m
5m
Part number
NPN output
E4B-T1E4 2M
E4B-T1E4 5M
E4B-TS50E4 2M
E4B-TS50E4 5M
E4B-RS70E4 2M
E4B-RS70E4 5M
E4B-LS70E4 2M
E4B-LS70E4 5M
E4B-LS20E4 2M
E4B-LS20E4 5M
PNP output
E4B-T1F4 2M
E4B-T1F4 5M
E4B-TS50F4 2M
E4B-TS50F4 5M
E4B-RS70F4 2M
E4B-RS70F4 5M
E4B-LS70F4 2M
E4B-LS70F4 5M
E4B-LS20F4 2M
E4B-LS20F4 5M
2
E4B
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SENSING TYPE
Through-beam
Detects the attenuation or interrupted condition
of the ultrasonic beam caused by the object
E4B-TjS Emitter
passing between the Emitter and Receiver.
Sensing object
E4B
E4B-TjR Receiver
Reflective
Setting distance
Detects only the beam reflected from the
object existing within the sensing distance
range set with the distance adjuster.
Distance adjustment
E4B-LSj
Unstable range
Sensing object
Sensing distance
adjustable range
Setting
zone
Sensing
background
Detects the object with the interruption of the
normal beam reflected from the acoustically
reflective surface.
E4B-RS70
Sensing
object
Acoustically reflective
surface
Sensing target
Detects only the beam reflected from the
object existing in the sensing range set with
the distance selector.
E4B-RS70
Unstable range
Sensing
object
Note: An object may be detected due to multiple reflection if the object is in the unstable range where the distance adjuster is ineffective,
in which case however, the detection of the object will not be stable. Therefore, do not attempt to use the E4B to detect an object
in the unstable range.
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E4B
E4B
Specifications
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RATINGS/CHARACTERISTICS
Part number
Sensing method
Supply voltage
Current
consumption
12 VDC
E4B-TS50E4
Through-beam
Emitter: 155 mA
max.
Receiver: 30 mA
max.
Emitter: 80 mA
max.
Receiver: 30 mA
max.
50 cm (19.69 in)
Emitter: 70 mA
max.
Receiver: 30 mA
max.
Emitter: 50 mA
max.
Receiver: 30 mA
max.
1 m (3.28 ft)
E4B-T1E4
E4B-LS20E4
Distance setting
E4B-LS70E4
E4B-RS70E4
Zone setting
12 to 24 VDC
±
10% (10.8 to 26.4 VDC) with a max. ripple
±10%
(p-p)
100 mA max.
24 VDC
50 mA max.
5 to 20 cm
(1.97 to 7.87 in)
20 to 60 cm
(20 to 70 cm)
(See Note 1.)
(7.87 in to
23.62 in)
20 to 60 cm
(20 to 70 cm)
(See Note 1.) (in
10-cm divisions)
(7.87 to 23.62 in)
3 cm max.
Sensing distance
Standard sensing object
Differential travel
Directional angle (See Note 2.)
Ultrasonic oscillation frequency
Switching frequency (See Note 3.)
Response time
Operating mode
Control output
Residual voltage
Indicators
Ultrasonic speed compensation
Ambient operating temperature
Relative humidity
Temperature influence
Voltage influence
Insulation resistance
Dielectric strength
Vibration resistance
Shock resistance
Enclosure rating
Approvals
UL, cUL
Weight (with 2-m-long cord and
Mounting Bracket)
NPN
PNP
10 x 10 cm flat plate
—
±8°
max.
200 kHz
50 Hz
10 ms
10 Hz
50 ms
4 x 4 cm flat plate
20% max. of sensing distance
50 Hz
10 ms
20 Hz
25 ms
N.O. or N.C. selectable
100 mA at 30 VDC (with a residual voltage of 1.5 V max.) and an output resistance of 4.7 kΩ
1.5 V max. under a load current of 100 mA
SENSING indicator (red LED) and STABILITY indicator (green LED)
No
- 10°C to 55°C (14°F to 131°F)
-
35% to 95%
±10%
max. of sensing distance at 20°C (68°F) in the temperature range of - 10°C and 55°C
-
(14°F to 131°F)
±5%
max. of sensing distance at a voltage between 90% and 110% of the rated power supply
voltage
20 MΩ min. at 500 VDC between current carry parts and case
1,000 V (50/60 Hz) for 1 min between current carry parts and case
10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z axes
500 m/s
2
(approx. 50G) 3 times each in X, Y, and Z axes
IEC IP66 (water resistant)
Recognized, File No. E41515 when used with a Class 2 power source
Approx. 600 g (21 oz) with Emitter
and Receiver
Approx. 300 g (10.6 oz)
Yes
Note: 1. These are the available sensing distances at an ambient temperature range between 0°C and 45°C (32°F to 113°F)
2. Signal attenuation of - 6 dB.
-
3. The switching frequencies are values obtained with the E4B used for detecting a rotating propeller-shaped disc as shown
below.
Space:Blade = 1:1
4
E4B
E4B
Operation
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OUTPUT CIRCUITS
NPN Output DC
Brown
Signal received, output on
(Power supply polarity:
Brown: +; Blue: 0 V)
Signal received
Signal interrupted
STABILITY
indicator (red)
Note 2.
Blue
Output
transistor
ON
OFF
ON
OFF
Signal not received, output on
(Power supply polarity:
Brown: 0 V: Blue: +)
Sound incident
Sound interrupted
STABILITY
indicator (red)
Output
transistor
ON
OFF
ON
OFF
+V
Load
Note 1.
Main
circuit
4.7k
W
Black
0V
Note: 1. 100 mA max. (load current)
2. Required when the transistor circuit is connected.
Load (relay)
Operate
Release
H
L
(Blue
↔
Black)
(Brown
↔
Black)
Operate
Load (relay)
Release
H
L
(Blue
↔
Black)
Output voltage
(logic)
Output voltage
(logic)
(Brown
↔
Black)
PNP Output
(No Diagram Provided)
5
E4B
E4B
Engineering Data
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OPERATING DISTANCE VS. SENSING OBJECT SIZE (TYPICAL)
E4B-TS50E4, E4B-T1E4
Minimum Sensing object size (cm)
for stable operation
Sensing position
E4B-LS20E4
Dia. (d) of sensing object or length (W)
of one side in cm.
E4B-LS70E4, E4B-RS70E4
Dia. (d) of sensing object or length (W)
of one side in cm.
Sample: Round pipe
that is 10 cm long
min.
E4B-T1E4:
Sensitivity adjuster
set to Max.
Sample: Round pipe
that is 10 cm long
min.
E4B-TS50E4:
Sensitivity adjuster set to Max.
Sensitivity adjuster: Adjust with stable incident.
Sensitivity adjuster: Adjust with stable incident.
Sensing position X (cm) (from Receiver)
Sensing distance (cm)
Operating distance (cm)
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OPERATING RANGE
DIAGRAM (TYPICAL)
E4B-LS20E4
Standard sensing object
(40 x 40 flat plate)
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OPERATING DISTANCE VS.
SENSING OBJECT ANGLE
(TYPICAL)
E4B-LS70E4, E4B-RS70E4
Standard sensing object (40 x 40 flat plate)
55-dia. rod
30-dia. rod
E4B-LS70E4, E4B-RS70E4
Angle
θ
Sensing object
Distance X
Sensing distance (cm)
Sensing distance (cm)
E4B-LS70
E4B-RS70
Angle
θ
( )
°
Stable operating range
Sensing distance (cm)
Sensing distance (cm)
Operating distance X (cm)
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