Omron E3MC DATASHEET

Color sensor (LED type)

E3MC

E3MC

RGB Color Sensor Discriminates Delicate
Differences in Color.

Features

Double Indication ensuring high
visibilty.

• Conformity with the registered colors can
be monitored at eight levels. (Detection
level indicators)

• Allows fine adjustment between fine or
rough discrimination while monitoring the
measured results. (Threshold level indica­tors)

Stable and Powerful Detection for Inline Use

Stable detection is assured with a threshold
of ±10 mm for built-in amplifier type and
±4 mm for optical fiber type.
Fiber type and Stable detection
±4 mm.
Stable and Powerful Detection for Inline Use
Mounting is easy.

10˚

60˚

10˚

Long-distance Sensing with Built-in Amplifi­er Type

Built-in amplifier type with a sensing distance of 60±10 mm is
available for a wide range of color discriminating applications.

Highly Resistant to Changes in Sensing Ob­ject Brightness and Ambient Temperature.

• OMRON's unique Free Angle Optics (FAO: multi-layer po­larized filter) is highly resistant to changes in the tint or

brightness of sensing objects. Capable of discriminating
over 90 different colors.

• Wide temperature range from -20°C to 55°C and excellent
detection stability.

Maintenance-free LED Light Source

Incorporates RGB LED light sources with a long service life
more than several tens of thousand hours.
Great maintenance-cost saver ensuring high performance
(Halogen lamps used as light sources must be replaced or re­adjusted every nine months or so.)

Principle of Detection

The E3MC detects colors by making use of the fact that the reflec­tion ratio of a primary color (i.e. red, green or blue) reflected by an
object varies with the chromatically of the object. By using a high­tech, multi-layer polarized filter called FAO (free angle optics), the
E3MC emits red, green and blue light on a single optical axis. The
E3MC receives the light reflected by the sensing objects through
the receiver and processes the red-green-blue ratio of the light to
discriminate the color of the sensing object.

Blue LED

(B)

Monitor photodiode (see note)

Photodiode

Emitter lens

Receiver lens

Time-sharing lighting

R

G

B

BGR

Sensing object

FAO

(Blue: Reflected;

FAO

(Green: Reflected; Red: Passed)

Red LED

Red/Green: Passed)

(R)

Green LED

(G)

Note: The monitor photodiode compensates LED output deviation that may be

caused by a temperature change. (Patent pending)

A-145E3MC

Application

Detection of a Mixture
of Different
Color Parts

Extraction and Sorting by
Color

Detection of Hard-to-discriminate Marks
(Yellow Marks on a
White Background, etc.)

Detection of Directional
Alignment for Packing

Color Discrimination and Sorting of Bot­tles Using a Through-beam Optical Fiber
Type (E32-T17L)

Detection of Small Marks Using a Reflec­tive Optical Fiber
Type (E32-CC200)

Features

Excellent Protective Structure and Mainte­nance Performance

The amplifier unit uses a sturdy metal body. The unit including
the fiber head satisfies the water resistance of IEC Standard
IP66. You can use the E3MC without any problems in a wide
range of applications. In addition to this, the M12 metal con­nector has improved maintenance performance.

Discriminating Delicate Color Differences

The detection level indicators are lit according to the degree
of conformity between registered and detected colors. Deli­cate color differences are discriminated by setting the thresh­old to a superior level. (Fine discrimination is expected.)
Sensor errors that may be caused by minor tint differences or
dirt retention are prevented by setting the threshold to a lower
level. (Rough discrimination is expected)

Fine
discrimination

Rough

indicators

Detection level

discrimination

Conversion of Color Data into RGB Analog
Data

The analog output type can control the color change history
and distribution in analog form. Different type discrimination
can also be performed without bank restrictions by CPU pro­cessing.

Color Chart

Output Detected colors

Threshold value

For details, refer to the standard sensing object.

A-146 Standard Photoelectric Sensors

Ordering Information

Sensors

ON/OFF type

Structure

Built-in Amplifier
Type

No. of

outputs

1

4

Shape Connection method Sensing distance

60±10mm

NPN output PNP output

E3MC-A11 E3MC-A41

E3MC-MA11 E3MC-MA41

Red light, Green light, Blue light

Model

E3MC

1
Optical Fiber
Type

General-pur­pose Optical Fi­ber Type

* Distance where 11 colors of standard sensing objects can be discriminated. As a typical example, 9 colors can be discriminated when 12 mm is set. Please contact

us since the sensing distance should be defined.

4

1

4

Connector type

Sensor I/O connec­tor (cable length 2
m) is supplied.

20±4mm

E32-CC200

5mm

E32-T16

*

200mm

E3MC-X11 E3MC-X41

E3MC-MX11 E3MC-MX41

E3MC-Y11 E3MC-Y41

E3MC-MY11 E3MC-MY41

Analog output type

Structure Shape Sensing distance Model

Built-in Amplifier
Type

Optical Fiber Type E3MC-X81

60

±10mm

20±4mm

E3MC-A81

General-purpose
Optical Fiber Type

Using E32-CC200

5±1mm

Accessories (Order Separately)

Sensor I/O Connectors

Shape Model Quantity Remarks

E39-C1 2M (2 m) 1 pc. Supplied with the product.

Please place an order
when extending the cable.

Mounting Brackets

Shape Model

E39-C1 5M (5 m) 1 pc.

Quanti-

E39-L114 2

E39-L115 1 For DIN track installation.

For E3MC installation.
(Can be inclined to 15°)

E3MC-Y81

Remarks

A-147E3MC

Rating/performance

ON/OFF type

Structure Built-in Amplifier Type Optical Fiber Type General-purpose Optical Fiber

Item Model

E3MC

-A#1

Sensing distance 60±10 mm*1 20±4 mm

Standard sensing object *2
Spot diameter 12 dia. 3-mm dia. ­Light source (wave length) Red LED (680 mm), green LED (525 mm), blue LED (450 mm)
Power supply voltage 12 to 24 VDC ±10%, ripple (p-p) : 10% max.
Current consumption 100 mA max.

Control output

Load supply voltage 24 VDC max., load current 100 mA max. (residual voltage NPN output: 1.2 V max.,
PNP output: 2.0 V max.) Open collector output type

Color discrimination mode Mode C: RGB ratio detection, Mode I: RGB light intensity detection Switch selectable

Conformity output: Output is ON when the detected color coincides with the registered color.

Output type

Non-conformity output: Output is ON when the detected color does not coincide with the registered color.
Switch selectable

E3MC-#11/-#41
Mode A (Factory-set) Mode B (for remote teaching)

Mode selection

Remote control input
(B mode only)

Answer-back output
(B mode only)

Bank selection input
(1 output only)

#

E3MC-M
Mode A (Factory-set) Mode B (for remote teaching)

11/-M#41

The following control is performed according to the control signal input.

E3MC-#11/-#41# Bank selection, remote teaching, or threshold selection

E3MC-M#11/-M#41# channel selection, remote teaching, threshold changing

Load current: 100 mA max.

NPN open collector output with a residual voltage of 1.2 V max.
PNP open collector output with residual voltage 2.0 V max. (E3MC-(M)A41/-(M)X41/-(M)Y41)

Selected between 4 banks (switching with the bank selection input and select button) Bank selection input

response time: 50 ms max.
External synchronous input Response time: 1 ms max. (Note that the 4 output type cannot be used when the B mode is selected)
Protective circuits Protection from load short-circuit and reversed power supply connection

Response time

Discriminating color
registration

1 output type: Standard mode: 3 ms max., high-speed mode: 1 ms max. (switch selectable) 4 output type:

Standard mode: 6 ms max., high-speed mode: 2 ms max. (switch selectable)

4 colors can be registered, teaching system (threshold permits fine adjustment)

Timer function OFF delay fixed at40 ms (ON/OFF switch selectable)
Ambient illuminance Incandescent lamp: 3,000 lux max. Sunlight 10,000 lux max.
Ambient temperature Operating: -20 to 55°C, Storage: -30 to 70°C (with no icing)
Ambient humidity Operating: 35% to 85% RH, Storage: 35% to 95% RH (with no icing or condensation)
Permissible fiber bending

radius
Insulation resistance 20 M min. at 500 VDC
Dielectric strength

1,000 VAC at 50/60 Hz for 1 minute
Vibration (resistance) *3 Destruction: 10 to 55 Hz, 1.0 mm double amplitude or 150 m/s2 for 2 hrs each in X, Y, and Z directions
Shock (resistance) *4 Destruction: 500 m/s2 for 3 times each in X, Y, and Z directions

Protective structure IEC 60529 IP66 (with Protective Cover attached)
Connection method Connector type [sensor I/O connector (cable length 2 m)]

E3MC

-MA#1

Control output (white)
Not used (gray)
Bank selection input 1 (yellow)
Bank selection input 2 (green)
External synchronous inputs (pink)
Vcc (Brown)
0 V (Blue)
Colors in parentheses are lead wire colors.

Control output 1 (white)
Control output 2 (gray)
Control output 3 (yellow)
Control output 4 (green)
External synchronous inputs (pink)
Vcc (Brown)
0 V (Blue)
Colors in parentheses are lead wire colors.

E3MC

-X#1

- 10 mm min.

E3MC

-MX#1

Control output (white)
Answer-back output (gray)
Remote control input (yellow)
Not used
External synchronous inputs (pink)
Vcc (Brown)
0 V (Blue)
Colors in parentheses are lead wire colors.

Control output 1 (white)
Control output 2 (gray)
Control output 3 (yellow)
Answer-back output (green)
Remote control input (pink)
Vcc (Brown)
0 V (Blue)
Colors in parentheses are lead wire colors.

3 outputs

E3MC

-Y#1

E3MC

-MY#1

Depends on the recommended fi­ber. Refer to page AB- for details.

Varies with the type of recom­mended fiber

A-148 Standard Photoelectric Sensors

Structure Built-in Amplifier Type Optical Fiber Type General-purpose Optical Fiber

Item Model

E3MC

-A#1

E3MC

-MA#1

E3MC

-X#1

E3MC

-MX#1

E3MC

-Y#1

Weight (Packed state) Approx. 350 g Approx. 400 g Approx. 350 g

Case Zinc die-cast

Material

Accessories

*1. C mode, standard mode (response time), threshold: Distance range where 11 colors of standard sensing objects can be discriminated when

Operation panel
cover

Fiber head -

PES

ABS

Cross-shaped recess screw M5x6 (with spring washer), sensor I/O connector (cable length 2 m),
instruction manual

= 15° (E3MC-(M) A##) or = 10° (E3MC-(M) X##) in the following figure in the standard mode.

E3MC

-MY#1

E3MC

-

E3MC-(M)A##

±

10

60

˚

= 15

q

*2. Standard Sensing Objects

Color (11

standard colors)

mm

= 10˚

q

Munsell color notation

White
Red
Yellow/

red
Yellow
Yellow/

green
Green
Blue/

green
Blue
Blue/

purple
Purple
Red/

purple

E3MC-(M)X##
Fiber Head

±

4

mm

20

Sensing objectSensing object

N9.5
4R 4.5/12.0

4YR 6.0/11.5

5Y 8.5/11.0

3GY 6.5/10.0

3G 6.5/9.0

5BG 4.5/10.0

3PB 5.0/10.0

9PB 5.0/10.0

7P 5.0/10.0

6RP 4.5/12.5

*3. 0.75-mm double amplitude or 100 m/s2 when using a mounting bracket
*4. 300 m/s

2

when using a mounting bracket

A-149E3MC

Rating/Performance

Analog output type

Structure Built-in Amplifier Type Optical Fiber Type
Item Model E3MC-A81 E3MC-X81 E3MC-Y81
Sensing distance *1

60±10 mm 20±4 mm
Spot diameter 12 dia. 3-mm dia.
Light source (wave length) Red LED (680 mm), green LED (525 mm), blue LED (450 mm)
Power supply voltage 24 V DC ±10%, ripple (p-p) 10% or less
Power consumption 100 mA max.
Control output 3 analog independent outputs (RGB) 0 to 10 VDC without output short-circuit protection

Resolution 300 mV max.
Load current 5 mA max.
Response speed 1.7 ms max.
Temperature drift ±0.3% FS/°C max.
Power restoration

time

Calibration input A, B

100 ms max. after power-on

24 VDC

Signal 1 ms (24 VDC, HIGH active)
Response time 600 ms max.
Calibration value

Terminal A: 10±0.2V Terminal B: 7±0.2V
Protective circuits Reverse polarity protection
Ambient illuminance Incandescent lamp: Illumination on optical spot: 1,000 lux max.
Ambient temperature Operating: 0°C to 50°C, Storage: -30°C to 70°C (with no icing or condensation)
Ambient humidity Operating: 35% to 85%RH, Storage: 35% to 95%RH (with no condensation)
Permissible fiber bending

radius

--- 10 mm min.

Insulation resistance 20 M min. at 500 VDC
Dielectric strength 1,000 VAC at 50/60 Hz for 1 minute
Vibration (resistance) *2
Shock (resistance) *3

Destruction: 10 to 55 Hz, 1.0 mm double amplitude or 150 m/s2 for 2 hrs each in X, Y, and Z directions

Destruction: 500 m/s2 for 3 times each in X, Y, and Z directions
Protective structure IEC 60529 IP66 (with Protective Cover attached)
Connection method M12 dedicated connector type
Weight (Packed state) Approx. 300 g Approx. 350 g Approx. 300 g

Case Zinc die-cast

Ma­terial

Cover
Fiber head

PES

ABS
Accessories Connection cable 2 m (E39-C1), instruction manual

*1. Distance range where calibration can be made with standard white paper (N9.5).
*2. 0.75 mm double amplitude or 100 m/s2 when using a mounting bracket
*3. 300 m/s2 when using a mounting bracket

General-purpose Optical Fiber Type

5 ±1mm (When using the E32-CC200)
Varies with the recommended fiber.

Varies with the type of
recommended fiber

Use (Typical)

Detection of work color

R: 0 to 10 V

Head

E3MC-81

G: 0 to 10 V

B: 0 to 10 V

Terminal for calibration
A: A81, X81, B: Y81

A-150 Standard Photoelectric Sensors

DC
24V