Document Outline
- First Page
- Ordering Information
- Specifications
- Engineering Data
- Dimensions
- Installation
- Precautions
- Contacting Omron
R
Long Range Ultrasonic Sensor
E4R
Sensing Distance Adjustable
to 2.5 m
H
Mutual interference protection
H
Wide beam angle ideal for detecting
granular or high-viscosity materials
H
Compact sensing head with separate
controller
Ordering Information
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SENSOR SYSTEM
Description
Part number
Ultrasonic sensing head
E4R-A
Controller for sensing head
E4R-2
Reference pulse unit to synchronize multiple sensors
E4R-SP
Switching power supply to power controller E4R-2
S82K-00312
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REPLACEMENT PARTS
Description
Part number
Socket for E4R-2 controller; mounts to panel or on DIN-rail track
14PFA
Socket for E4R-SP reference pulse unit
8PFA
Specifications
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SENSING HEAD
Part number
E4R-A
Sensing method
Reflective
Sensing distance
0.7 to 2.5 m (2.30 to 8.20 ft), adjustable
Standard sensing object
200 x 200 mm flat plate
Ultrasonic oscillation frequency
40 2 kHz
Directional angle
20
Indicator
--
Ambient operating temperature
--25C to 55C (--13F to 131F) with no icing
Relative humidity
45% to 85% with no condensation
Vibration resistance
10 to 25 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z axes
Shock resistance
100 m/s
2
(approx. 10 G) 10 times each in X, Y, and Z axes
(This table continues on the next page.)
E4R
E4R
2
Specifications Table
-- continued from previous page
Part number
E4R-A
Cable length
Use shielded cable, 20 m (65.62 ft) max. between sensor and controller
Weight
Approx. 400 g
Material
Plastic
Temperature influence
5% max. of sensing distance within the temperature range of --10C to 40C (14F to 104F)
Voltage influence
5% max. of sensing distance within the permissible power supply voltage
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CONTROLLER
Part number
E4R-2
Supply voltage
12 VDC 15%
Current consumption
Approx. 1.5 W (120 mA DC)
Response time
ON: 150 ms; OFF time: 500 ms
Control output
SPDT contact, 4 A at 220 VAC/24 VDC
Operation mode
NO and NC switch selectable
indicator
POWER and DETECT indicators
Ambient operating temperature
--10C to 40C (14F to 104F)
Relative humidity
45% to 85% with no condensation
Insulation resistance
20 M min. at 500 VDC between current carrying parts and case
Dielectric strength
1500 VAC 50/60 Hz for 1 min between current carry parts and case
Vibration resistance
10 to 25 Hz, 1.5-mm double amplitude for 2 hours each in X,Y and Z axes
Shock resistance
100 m/s
2
(approx. 10 G) 10 times each in X, Y, and Z axes
Enclosure rating
IP10
Weight
400 g
Engineering Data
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OPERATING RANGE DIAGRAMS (TYPICAL)
Dis
t
a
n
c
e
(
m
)
Adjusted for 2.5
Adjusted for
1 m
E4R sensor
30-mm dia. Rod
Operating width (mm)
30 mm dia. rod
200 x 200 mm Plastic Plate
Operating width (mm)
E4R sensor
Adjusted
for 1 m
Adjusted for 2.5 m
200 x 200 mm
plastic plate
Dis
t
a
n
c
e
(
m
)
E4R
E4R
3
Dimensions
Unit: mm (inch)
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E4R-A SENSOR
Mounting Bracket
Three, 5.5 dia.
46 max.
(1.81)
70 max.
(2.76)
88 max.
52
(2.05)
20
80 (3.15)
40
80
12
22.5
20
30_
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E4R-2 CONTROLLER
Note: The dimensions are external
dimensions that include the 14PFA
Surface-mounting Socket.
14PFA Socket
The 14PFA Surface-mounting Socket is provided with the E4R-2.
80.5 max.
87 max.
(3.43)
118 max.
72
(2.83)
71
60
(2.36)
4
112
(4.41)
301
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E4R-SP REFERENCE PULSE UNIT
Note: The 8PFA Surface-mounting Socket is provided with the E4R-SP.
82 max.
(3.29)
62.5 max.
(2.46)
50 max.
(1.97)
90 max.
(3.54)
5
3.5
73.4
7
8.2
62
E4R
E4R
4
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14PFA PANEL AND DIN TRACK MOUNTING SOCKET (ORDER SEPARATELY)
14, M3.5 x 7 sems screws
Two, 4.5-dia.
holes
Terminal Arrangement and
Internal Connections (Top View)
Mounting Holes
Two, M4 or 4.5-dia. holes
Note: DIN track mounting is possible.
72 max.
(2.83)
81 max.
(3.19)
33.5 max.
(1.32)
118 max.
(4.65)
7.8
4
600.2
(2.36)
5
4
4
35.4
600.2
Installation
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CONNECTIONS
E4R-A/E4R-2
Sensor 1
Sensor 2
E4R-A
Use shielded cables for the oscillator's transmission line
(connected to the OSC terminals) and the reception line
(connected to the REC terminals). Each cable must be a
maximum of 20 m in length.
The shielded cables connecting the Sensor and terminals 7, 14,
and 6 (or 5, 12, and 4) must be all parallel conductors with 11
strands of 0.16-mm dia. each with all conductors shielded
independently. The cable connected to terminal 3 must be a
single-conductor cable that is 0.2 to 0.3 mm
2
in size.
Note: 1. Sensors 1 and 2 are in OR operation.
2. If only a single Sensor is connected, leave the termi-
nals for the other Sensor open.
3. Set the slide switch to CLOSE.
Note: CHECK terminal allows connection of oscilloscope for
trouble shooting ultrasonic signal.
E4R
E4R
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REFERENCE PULSE UNIT
Use the E4R-SP Reference Pulse Unitwhen more than one E4R-2 PowerSupply Unitis applied to a single application.The E4R-SP generates
reference pulses that synchronize a maximum of ten E4R-2 Power Supply Units in operation without mutual interference.
Reference
pulse signal
Sensor 1
Sensor 1
Sensor 2
Note: 1. Sensors 1 and 2 are in OR operation.
2. Set the slide switch of the E4R-2 to OPEN.
Sensor 2
Set the slide switch to E4R-2.
Supply 100 VAC or 12 VDC.
Reference
pulse signal
E4R-A
E4R-A
100 VAC
Precautions
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POWER SUPPLY
If a switching power supply is to be used, the FG and G terminals
must be grounded.
E4R-2
Cat. No. CEDSAX4 11/01 Specifications subject to change without notice. Printed in U.S.A.
OMRON ELECTRONICS LLC
One East Commerce Drive
Schaumburg, IL 60173
NOTE: DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters to inches divide by 25.4.
1-800-55-OMRON
OMRON CANADA, INC.
885 Milner Avenue
Scarborough, Ontario M1B 5V8
416-286-6465
R
OMRON ON--LINE
Global -- http://www.omron.com
USA -- http://www.omron.com/oei
Canada -- http://www.omron.com/oci
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