R
Long Range Ultrasonic Sensor
Sensing Distance Adjustable
to 2.5 m
H
Mutual interference protection
H
Wide beam angle ideal for detecting
granular or high-viscosity materials
E4R
H
Compact sensing head with separate
controller
Ordering Information
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SENSOR SYSTEM
Description
Ultrasonic sensing head
Controller for sensing head
Reference pulse unit to synchronize multiple sensors
Switching power supply to power controller E4R-2
Part number
E4R-A
E4R-2
E4R-SP
S82K-00312
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REPLACEMENT PARTS
Description
Socket for E4R-2 controller; mounts to panel or on DIN-rail track
Socket for E4R-SP reference pulse unit
Part number
14PFA
8PFA
Specifications
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SENSING HEAD
Part number
Sensing method
Sensing distance
Standard sensing object
Ultrasonic oscillation frequency
Directional angle
Indicator
Ambient operating temperature
Relative humidity
Vibration resistance
Shock resistance
E4R-A
Reflective
0.7 to 2.5 m (2.30 to 8.20 ft), adjustable
200 x 200 mm flat plate
40
±2
kHz
±20°
—
- 25°C to 55°C (- 13°F to 131°F) with no icing
-
-
45% to 85% with no condensation
10 to 25 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z axes
100 m/s
2
(approx. 10 G) 10 times each in X, Y, and Z axes
(This table continues on the next page.)
E4R
Specifications Table
-- continued from previous page
Part number
Cable length
Weight
Material
Temperature influence
Voltage influence
E4R-A
Use shielded cable, 20 m (65.62 ft) max. between sensor and controller
Approx. 400 g
Plastic
E4R
±5%
max. of sensing distance within the temperature range of - 10°C to 40°C (14°F to 104°F)
-
±5%
max. of sensing distance within the permissible power supply voltage
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CONTROLLER
Part number
Supply voltage
Current consumption
Response time
Control output
Operation mode
indicator
Ambient operating temperature
Relative humidity
Insulation resistance
Dielectric strength
Vibration resistance
Shock resistance
Enclosure rating
Weight
E4R-2
12 VDC
±15%
Approx. 1.5 W (120 mA DC)
ON: 150 ms; OFF time: 500 ms
SPDT contact, 4 A at 220 VAC/24 VDC
NO and NC switch selectable
POWER and DETECT indicators
- 10°C to 40°C (14°F to 104°F)
-
45% to 85% with no condensation
20 MΩ min. at 500 VDC between current carrying parts and case
1500 VAC 50/60 Hz for 1 min between current carry parts and case
10 to 25 Hz, 1.5-mm double amplitude for 2 hours each in X,Y and Z axes
100 m/s
2
(approx. 10 G) 10 times each in X, Y, and Z axes
IP10
400 g
Engineering Data
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OPERATING RANGE DIAGRAMS (TYPICAL)
30-mm dia. Rod
Adjusted for 2.5
30 mm dia. rod
200 x 200 mm Plastic Plate
Adjusted for 2.5 m
200 x 200 mm
plastic plate
Distance (m)
Distance (m)
E4R sensor
Adjusted for
1m
E4R sensor
Adjusted
for 1 m
Operating width (mm)
Operating width (mm)
2
E4R
E4R
Dimensions
Unit: mm (inch)
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E4R-A SENSOR
46 max.
(1.81)
Mounting Bracket
Three, 5.5 dia.
52
70 max. (2.05)
(2.76)
20
40
30_
80 (3.15)
88 max.
80
12
20
22.5
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E4R-2 CONTROLLER
4
14PFA Socket
60
(2.36)
87 max.
(3.43)
80.5 max.
118 max.
Note: The dimensions are external
dimensions that include the 14PFA
Surface-mounting Socket.
71
72
(2.83)
30±1
112
(4.41)
The 14PFA Surface-mounting Socket is provided with the E4R-2.
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E4R-SP REFERENCE PULSE UNIT
82 max.
(3.29)
62.5 max.
(2.46)
62
5
3.5
50 max.
(1.97)
73.4
90 max.
(3.54)
7
8.2
Note: The 8PFA Surface-mounting Socket is provided with the E4R-SP.
3
E4R
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14PFA PANEL AND DIN TRACK MOUNTING SOCKET (ORDER SEPARATELY)
E4R
14, M3.5 x 7 sems screws
7.8
Two, 4.5-dia.
holes
81 max.
(3.19)
5
4
4
Terminal Arrangement and
Internal Connections (Top View)
Mounting Holes
118 max.
(4.65)
Two, M4 or 4.5-dia. holes
35.4
60±0.2
(2.36)
4
60±0.2
72 max.
(2.83)
33.5 max.
(1.32)
Note: DIN track mounting is possible.
Installation
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CONNECTIONS
E4R-A/E4R-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.
Sensor 1
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.
Sensor 2
Note: CHECK terminal allows connection of oscilloscope for
trouble shooting ultrasonic signal.
4
E4R
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REFERENCE PULSE UNIT
E4R
Use the E4R-SP Reference Pulse Unitwhen more than one E4R-2 Power Supply 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.
E4R-A
E4R-A
Sensor 1
Sensor 1
Reference
pulse signal
Sensor 2
Reference
pulse signal
Sensor 2
Note: 1. Sensors 1 and 2 are in OR operation.
2. Set the slide switch of the E4R-2 to OPEN.
Set the slide switch to E4R-2.
Supply 100 VAC or 12 VDC.
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
NOTE: DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters to inches divide by 25.4.
R
One East Commerce Drive
Schaumburg, IL 60173
OMRON ELECTRONICS LLC
OMRON ON-
-LINE
Global -- http://www.omron.com
USA -- http://www.omron.com/oei
Canada -- http://www.omron.com/oci
OMRON CANADA, INC.
1-800-55-OMRON
Cat. No.
CEDSAX4
11/01
416-286-6465
885 Milner Avenue
Scarborough, Ontario M1B 5V8
Specifications subject to change without notice.
Printed in U.S.A.
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