Product Category

Color Mark Detection Compact Photoelectric Sensor


Color Mark Detection in a World-standard Size (11 × 21 × 32 mm), with High-speed Response (50 μs) and Accuracy in Spite of Sensing Object Movement

Sensing method

Diffuse reflective (mark detection)


NPN output


PNP output


Sensing distance

12±2 mm *1

Sensing range

Depends on the combination of colors. Refer to Data Sheet.

Spot diameter

2-mm dia. max.

Light source (wavelength)

White LED (450 to 700 nm)

Power supply voltage

10 to 30 VDC, including 10% ripple (p-p)

Power consumption

750 mW max. (current consumption for a 30-V power supply voltage: 25 mA max.)

Control output

Load power supply voltage: 30 VDC max., Load current: 100 mA max. (Residual voltage:
 2 V max.)
 Open-collector output (NPN/PNP output depending on model)

Remote control input

NPN output ON: Short-circuit to 0 V, or 1.5 V max. (source current: 1 mA max.)
 NPN output OFF: Open or Vcc - 1.5 V to Vcc (leakage current: 0.1 mA max.)
 PNP output ON: Vcc - 1.5 V to Vcc (sink current: 1 mA max.)
 PNP output OFF: Open or 1.5 V max. (leakage current: 0.1 mA max.)

Operating modes

Set in the order of the teaching operation. *2

Protection circuits

Reversed power supply polarity, Load short-circuit protection, and Reversed output
 polarity protection

Response time

Operate or reset: 50 μs max.

Sensitivity adjustment

Teaching method

Ambient illumination

(Receiver side) Incandescent lamp: 3,000 lx max., Sunlight: 10,000 lx max.

Ambient temperature range

Operating: -40 to 60°C (*3), Storage: -40 to 70°C (with no icing or condensation)

Ambient humidity range

Operating: 35% to 85%, Storage: 35% to 95% (with no condensation)

Insulation resistance

20 MΩ min. (at 500 VDC)

Dielectric strength

1,000 VAC at 50/60 Hz for 1 min

Vibration resistance

10 to 55 Hz, 1.5-mm double amplitude for 2 h each in X, Y, and Z directions

Shock resistance

500 m/s2 for 3 times each in X, Y, and Z directions

Degree of protection *4

IEC 60529: IP67, DIN 40050-9: IP69K

Connection method

Pre-wired cable (standard length: 2 m) or M8 4-pin connector


Operating indicator (yellow), Stability indicator (green), and Teaching indicator (red)

Weight (packed state)

Pre-wired models (2-m cable): Approx. 85 g
 Connector models: Approx. 35 g





PMMA (polymethylmethacrylate)


PES (polyethersulfone)


Fluoro rubber


PVC (polyvinyl chloride)


Instruction sheet Note: Mounting Brackets are purchased separately.


1. A deviation of ±2 mm (typical value) can be handled for combinations of white, yellow, and black. Refer to page 7 for the detection capabilities for other colors.
 2. Mark Sensor output switching:
        When teaching, specify the ON color first and the OFF color second.
 3. Do not bend the cable in temperatures of −25°C or lower.
 4. IP69K Degree of Protection Specification
        IP69K is a protection standard against high temperature and highpressure water defined in the German standard DIN 40050, Part 9. The test piece is sprayed with water at 80°C at a water pressure of 80 to 100 BAR using a specified nozzle shape at a rate of 14 to 16 liters/min. The distance between the test piece and nozzle is 10 to 15 cm, and water is sprayed horizontally for 30 seconds each at 0°, 30°, 60°, and 90° while rotating the test piece on a horizontal plane.




Standard Sensing Object for the Mark Sensor


Munsell color notation 




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