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

Lineup
Type | Shape | Sensing distance | Bank function | Model | |
---|---|---|---|---|---|
NPN type | PNP type | ||||
Color/ mark detection type |
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8CH | DM-18TN | DM-18TP |
Specifications
Type | Color/mark detection | |
---|---|---|
Model | NPN | DM-18TN |
PNP | DM-18TP | |
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 | |
Environmental resistance |
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.)