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TAKEX_MC

U-Shaped Mark Sensors

  • TAKEX MC Series U-shaped mark sensors feature a fixed 2 mm gap, red/green/blue LEDs, NPN or NPN/PNP outputs, 1 ms response, adjustable sensitivity, self-cleaning glass lenses, and IP67 protection.
  • Brand TAKEX Takenaka Engineering Co., Ltd.
Features
  • Integrated U-shaped design: The emitter and receiver are integrated in one housing with a fixed 2 mm sensing gap, simplifying installation and alignment.
  • Red, green, and blue light sources: The lineup offers 680 nm red, 525 nm green, and 450 nm blue LEDs. Blue LED models are suited to detecting yellow register marks.
  • Self-cleaning lens design: Target movement continuously helps clean the center sensing area, while release of sheet tension also helps clean the upper lens surface.
  • Adjustable emitter power and sensitivity: High/low emitter-power selection and a four-turn non-stop sensitivity adjustment support setup for different paper and mark conditions.
  • IP67 with glass lenses: The washable IP67 housing uses large-curvature glass lenses designed to reduce damage when sheets contact the sensing surface.
Specification
ItemSpec.
Product typeU-shaped mark sensor
Series modelsMC-U2R
MC-U2RTC
MC-U2G
MC-U2GTC
MC-U2B
MC-U2BTC
Detection methodThrough beam, U-shaped
Detecting gapFixed 2 mm
Power supply12–24VDC ±10%, ripple 10% or less
Control outputStandard models: NPN open collector;
TC models: NPN/PNP open-collector dual outputs
Operation modeLight-ON / Dark-ON selectable
Response time1 ms or less
Light sourceRed, green, or blue LED depending on model
Operation indicatorRed LED
Stability indicatorGreen LED
Case materialHeat-resistant ABS
Lens materialGlass
Ambient light5,000 lx or less
Operating temperature−25 to +55°C, non-freezing
Ambient humidity35–85% RH, non-condensing
Protective structureIP67
WeightApprox. 120 g

Specification notes

  • Models are selected mainly by light source and output type: R models use red light, G models use green light, and B models use blue light. Standard versions provide NPN output, while TC versions provide NPN/PNP dual outputs.
  • The sensing gap is fixed at 2 mm. The integrated U-shaped structure requires no separate emitter/receiver alignment, while sensitivity and emitter power can be adjusted for different sheet and mark conditions.
  • If a load short circuit or overload occurs, the output transistor turns off. Check the load condition and reapply power after correcting the problem.
FAQ

Q1: What is the TAKEX MC Series?
A: The MC Series consists of U-shaped through-beam mark sensors for detecting register marks on paper, film, and packaging materials.


Q2: What models are available?
A: The lineup includes MC-U2R, MC-U2RTC, MC-U2G, MC-U2GTC, MC-U2B, and MC-U2BTC.


Q3: What is the sensing gap?
A: All MC Series models have a fixed 2 mm sensing gap.


Q4: What light sources are available?
A: The lineup offers 680 nm red, 525 nm green, and 450 nm blue LEDs.


Q5: Which model is suitable for yellow register marks?
A: MC-U2B and MC-U2BTC use blue LEDs and are suited to detecting yellow register marks.


Q6: Does the MC Series require optical-axis adjustment?
A: No. The U-shaped housing fixes the emitter and receiver positions, eliminating separate optical-axis alignment.


Q7: Can sensitivity be adjusted?
A: Yes. All models provide a four-turn non-stop sensitivity adjustment and selectable high/low emitter power.


Q8: Which models provide both NPN and PNP outputs?
A: MC-U2RTC, MC-U2GTC, and MC-U2BTC provide NPN/PNP open-collector dual outputs. The other models provide NPN output.


Q9: What is the protection rating?
A: All MC Series models have an IP67 washable protective structure.


Q10: What applications are suitable for the MC Series?
A: Applications include packaging, food, pharmaceutical, and printing equipment for detecting register marks on wrapping paper, traditional paper, and film.

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