Digital Color/Mark Detection TypeDM Series


RGB color/mark sensor for automatically selecting light source color

  • 3-color (red, green, blue) light source switching function
  • Threshold value digital adjustment function
  • 8-bank switching function
DM Series


Type Shape Sensing distance Bank function Model
NPN type PNP type
mark detection type


Type Color/mark detection
Model NPN DM-18TN
Sensing distance 18 ± 2 mm
Light source R / G / B Mark mode: 1 color selection during teaching
Color mode: 3 color simultaneous illumination
Spot size Approx. 1 × 6 mm at a distance of 18 mm
Response time Mark mode: 0.25, 0.5, 1.2 ms switching
Color mode: 0.8, 1.6, 4 ms switching
Distance adjustment Mark mode: 2-point teaching, auto-teaching
Color mode: 1-point teaching
Threshold adjustment Manual adjustment is possible after teaching
Indicators Output indicator (orange), Stability indicator (green)
Digital display 7-segment, 3-digit display
Control output NPN/PNP open collector Max. 100 mA/30 VDC
External input 8-bank switching
Timer function ON delay / OFF delay / One-shot 0 to 990 ms
(setting is possible in 10 ms increments),
1 to 10 s (setting is possible in 1 s increments)
Output mode Light ON (output when matched) / Dark ON (output when mismatched) selectable by setting*
Connection type Cable type: Cable length: 2 m ø4 mm
Insulation resistance 20 MΩ or more (with 500 VDC)
Rating Supply voltage 10 to 30 VDC, including 10% ripple (p-p)
Current consumption 40 mA
Applicable regulations EMC directive (2004/108/EC)
Applicable standards EN 60947-5-2
Company standards Noise resistance: Feilen Level 3 cleared
Ambient temperature/humidity -25 to +55℃ (no freezing) / 35 to 85% RH (no condensation)
Ambient illuminance Sunlight: 10,000 lx or less Incandescent light: 3,000 lx or less
Vibration resistance 10 to 55 Hz; double amplitude 1.5 mm;
2 hours in each of the X, Y, and Z directions
Shock resistance Approx. 50 G (500 m/s2),
3 times in each of the X, Y, and Z directions
Degree of protection IP67
Material Housing: ABS Lens front cover: PMMA
Weight (including cable) Approx. 75 g
Included accessories Mounting bracket: BEF-WK-190

•Specifications are subject to change without prior notice for product improvement purposes.
*During mark mode 2-point teaching, the first point color becomes the ON color.

Distance adjustment

•To adjust threshold using the buttons, press the Up or Down button. The status display will show the threshold and flash.
Adjust the threshold using the Up and Down buttons. Pressing the teach button will return to Run Mode.
(Even if the teach button is not pressed, a return to Run Mode will occur after 10 sec.)