OMRON E2CA Technical data
Inductive Proximity Sensor E2CA
g
Linear Output Proximity Sensor with
High-accuracy Resolution
Resolution is 0.05% of the maximum sensing
distance. The model with a sensing distance of
1.2 mm ensures a resolution of 0.6 om.
Models with response frequencies ranging from 10
to 3 kHz are available.
The M30-size model ensures a sensing distance of
10 mm.
Satisfies IEC IP67 requirements, thus detecting the
displacement of metal objects without being
influenced by water and oil spray.
The E2CA has a standard linear output of 4 to
20 mA and connects to the Linear Discrimination
Unit, Digital Panel Meter, and I/O Unit of the
Programmable Controller.
The E2CA’s compact amplifier can be plugged into
surface mounting sockets thus greatly reducing
wiring effort and ensuring easy mounting.
Ordering Information
Shield
Shielded
Size Sensing
distance (Sn)
M8 0.3to1.5mm 10 kHz 1kHz E2CA-XIR5A E2CA-AL4C E2CA-AN4C
M12 0.4to2mm 10 kHz 800 Hz E2CA-X2A E2CA-AL4D E2CA-AN4D
M18 1to5mm 5kHz 350 Hz E2CA-X5A E2CA-AL4E E2CA-AN4E
M30 2to10mm 3kHz 100 Hz E2CA-X10A E2CA-AL4F E2CA-AN4F
Response frequency
Linear output Switching
output
Sensor Unit
Amplifier Unit
DC AC
1
E2CA
Application Examples
E2CA
Detection of Metals on Other Metals
Counts the number of gear teeth.
Detects mounting screws, rivets, and soldering condition
E2CA
Amplifier
Unit
K3TS
Output Output
Measurement of Sheet Angles
Measures leaned press molds and elevated boards
E2CA E2CA
Metal plate
K3TS
Output
E2CA Amplifier Unit
E2CA Amplifier Unit
Detection of Loosened Screws
E2CA Amplifier Unit
E2CA E2CA
Improper screwing
K3TS
Loosened
Measurement of Sheet Thickness
K3TS
Sensing
Head
E2CA
Output
E2CA
Amplifier
Unit
Discrimination of Materials
E2CA Amplifier
Unit
Iron
Copper
K3TS
Output
Brass
Measurement of External Dimensions
E2CA Amplifier
Unit
K3TS
Alarm output
E2CA
Metal object
Discrimination of Shapes
Detects top and bottom sides of metal caps
and surface and back sides of nuts
E2CA
E2CA
Amplifier
Unit
K3TS
Output
Measurement of Object Deformations
E2CA Amplifier
Unit
K3TS
Output
E2CA
2
E2CA
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p
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Specifications
E2CA
Sensor model
Item Amplifier model E2CA-AN4C E2CA-AL4C E2CA-AN4D E2CA-AL4D
Supply voltage (operating voltage range) 100 to 240 VAC
Current consumption
Sensing object Ferrous metal
Sensing range
(with standard sensing object)
Linear output
characteristics
Switching output
characteristics
Sensitivity
adjustment
function
Output
Switching output mode Normally open or normally closed (selectable with selector on front panel)
Cord length compensation 3 or 5 m (selectable with selector on front panel)
Indicators POWER, SPAN (linear range), and OPER (switching output) indicators
Ambient temperature Operating: --25flCto70flC (Sensor) and --10flCto55flC (Amplifier) with no icing
Ambient humidity Operating: 35% to 95% (Sensor) and 35% to 85% (Amplifier)
Temperature influence ‒10% FS max. of linear output current at 23flC in the rated ambient operating
Voltage influence DC power supply model: ‒0.5% FS max. of linear output current at a voltage between
Insulation resistance
Dielectric strength DC power supply model: 1,000 VAC (50/60 Hz) for 1 min between current carry parts
Vibration resistance Sensor (destruction): 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and
Shock resistance Sensor (destruction): 500 m/s2(approx. 50G) 3 times each in X, Y, and Z directions
Degree of protection Sensor: IEC60529 IP67 (JEM IP67g waterproof and oil-proof)
Cord length
Weight
(see note 4)
Material
Resolution 0.05% FS
Linearity ‒2% FS ‒1.5% FS
Response frequency
(see note 1)
Differential travel 2% to 5% of rated sensing distance
Response frequency
(see note 2)
Sensitivity adjustment
(switching output)
Linear output
current
adjustment
Linear output
(see note 3)
Switching output 100 mA max. transistor photocoupler output at 40 VDC with max. residual voltage of 2 V
Sensor Approx. 40 g
Amplifier Approx. 250 g Approx. 140 g Approx. 250 g Approx. 140 g
Case
Sensing surface
Cord Polyethylene
4mA 4-mA adjustment at 20% of rated sensing distance
20 mA 20-mA adjustment at rated sensing distance
50/60 Hz
(90to264VAC)
60 mA max. 70 mA max. 60 mA max. 70 mA max.
0.3 to 1.5 mm (8 x 8 x 1 mm iron) 0.4to2mm(12x12x1mmiron)
10 kHz (--1 dB) 10 kHz (--1 dB)
1kHz 800 Hz
Adjustments of switching output within sensing range
4 to 20 mA (with permissible load resistance of 0 to 300 Y)
temperature range of the Sensor and Amplifier Units
80% and 120% of the rated power supply voltage
AC power supply model: ‒0.5% FS max. of linear output current at a voltage between
90% and 110% of the rated power supply voltage
50 MY min. (at 500 VDC) between the case and current carry parts
and case
AC power supply model: 1,500 VAC (50/60 Hz) for 1 min between current carry parts
and case
Z directions
Amplifier (destruction): 10 to 25 Hz, 2-mm double amplitude for 2 hours each in X, Y, and
Z directions
Amplifier (destruction): 100 m/s2(approx. 10G) 3 times each in X, Y, and Z directions
Sensor: 2-conductor, 3-m-long (standard length) or 5-m-long shielded cord
Brass
ABS resin
E2CA-X1R5A E2CA-X2A
12 to 24 VDC
(10to30VDC),
ripple (p-p): 10%
max.
100 to 240 VAC
50/60 Hz
(90to264VAC)
12 to 24 VDC
(10to30VDC),
ripple (p-p): 10%
max.
3
E2CA
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E2CA
Sensor model
Item Amplifier model E2CA-AN4E E2CA-AL4E E2CA-AN4F E2CA-AL4F
Supply voltage (operating voltage range) 100 to 240 VAC
Current consumption 60 mA max. 70 mA max. 60 mA max. 70 mA max.
Sensing object Ferrous metal
Sensing range (with standard sensing
object)
Linear output
characteristics
Switching output
characteristics
Sensitivity
adjustment
function
Output
Switching output mode
Cord length compensation 3 or 5 m (selectable with selector on front panel)
Indicators POWER, SPAN (linear range), and OPER (switching output) indicators
Ambient temperature
Ambient humidity Operating: 35% to 95% (Sensor) and 35% to 85% (Amplifier)
Temperature influence ‒10% FS max. of sensing distance at 23flC in the rated ambient operating temperature
Voltage influence DC power supply model: ‒0.5% FS max. of linear output current at a voltage between
Insulation resistance 50 MY min. (at 500 VDC) between the case and current carry parts
Dielectric strength DC power supply model: 1,000 VAC (50/60 Hz) for 1 min between current carry parts
Vibration resistance Sensor (destruction): 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and
Shock resistance Sensor (destruction): 500 m/s2(approx. 50G) 3 times each in X, Y, and Z directions
Degree of Protection
Cord length Sensor: 2-conductor, 3-m-long (standard length) or 5-m-long shielded cord
Weight
(see note 4)
Material
Resolution 0.05% FS
Linearity ‒1.5% FS ‒2% FS
Response frequency
(see note 1)
Differential travel 2% to 5% of rated sensing distance
Response frequency
(see note 2)
Sensitivity adjustment
(switching output)
Linear output
current
adjustment
Linear output
(see note 3)
Switching output
Sensor Approx. 60 g Approx. 160 g
Amplifier Approx. 250 g Approx. 140 g Approx. 250 g Approx. 140 g
Case Brass
Sensing surface ABS resin
Cord Polyethylene
4mA
20 mA 20-mA adjustment at rated sensing distance
50/60 Hz
(90to264VAC)
1to5mm(18x18x1mmiron) 2to10mm(30x30x1mmiron)
5 kHz (--1 dB) 3 kHz (--1 dB)
350 Hz 100 Hz
Adjustments of switching output within sensing range
4-mA adjustment at 20% of rated sensing distance
4 to 20 mA (with permissible load resistance of 0 to 300 Y)
100 mA max. transistor photocoupler output at 40 VDC with max. residual voltage of 2 V
Normally open or normally closed (selectable with selector on front panel)
Operating: --25flCto70flC (Sensor) and --10flCto55flC (Amplifier) with no icing
range of --10flC and 40flC
80% and 120% of the rated power supply voltage
AC power supply model: ‒0.5% FS max. of linear output current at a voltage between
90% and 110% of the rated power supply voltage
and case
AC power supply model: 1,500 VAC (50/60 Hz) for 1 min between current carry parts
and case
Z directions
Amplifier (destruction): 10 to 25 Hz, 2-mm double amplitude for 2 hours each in X, Y, and
Z directions
Amplifier (destruction): 100 m/s2(approx. 10G) 3 times each in X, Y, and Z directions
Sensor: IEC60529 IP67 (JEM IP67g waterproof and oil-proof)
E2CA-X5A E2CA-X10A
12 to 24 VDC
(10to30VDC),
ripple (p-p): 10%
max.
100 to 240 VAC
50/60 Hz
(90to264VAC)
12 to 24 VDC
(10to30VDC),
ripple (p-p): 10%
max.
Note: 1. This is a frequency decreasing the level of linear output current by 1 dB.
2. This is a response frequency measured in accordance with CENELEC standards.
3. The maximum load impedance of the E2CA-AL4 is 150 Y at a supply voltage of 12 V.
4. The weight includes the 3-m-long cord. The weights of the Amplifiers do not include connecting sockets.
4
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