The Photoelectric Groove Sensor is also called a U-type photoelectric switch, a concave photoelectric switch, a travel limit switch, etc. It is a kind of through-beam photoelectric switch. It is an infrared induction photoelectric sensor, composed of an infrared-emitting tube, an infrared-receiving tube, and a circuit board chip. It uses light as a medium, receiving and converting the infrared light between the light emitter and the light receiver to detect the position of the object. Concave slot photoelectric switches are mostly used for module limit positioning, shaft rotation number reading (reading the number of revolutions and speed), detection of paper or textile cloth discharge, bearing limit travel, etc., and are widely used.
Main features of Photoelectric Groove Sensor
- Grooved type that meets international standards
- Ultra-small size, greatly saving space
- Automated process production, ultra-high consistency
- Simple and firm, ultimate reliability
- Large and clear multi-angle action indicator lights
- Long life, high-speed response, flexible installation
- Anti-strong sunlight interference, anti-power interference
- Perfect combination of speed and price
FAQ
Q1: What size objects are suitable for the microgroove-type photoelectric sensor to detect?
Microgroove-type sensors typically have a groove width of 0.5mm–5mm and can stably detect light-blocking objects ≥70% of the groove width, such as thin baffles, thin shafts, and chip pins. For transparent/semi-transparent objects, it is recommended to choose a dedicated anti-interference model to avoid missed detections.
Q2: Will there be missed counts or false triggers under high-speed conditions?
Mainstream models have a response frequency of up to several thousand Hz, supporting high-speed positioning and counting. Using products with strong light interference resistance and wide voltage regulation circuitry can effectively avoid jitter and false triggers, making them suitable for high-speed turntables, feeders, and other similar applications.
Q3: How effective is the interference resistance of the microgroove photoelectric sensor? Is it affected by ambient light?
The product uses modulated light signal detection, effectively resisting external interference such as natural light, fluorescent lights, and equipment lighting in the workshop. It can still work stably in strong light environments and is less prone to malfunctions.
Q4: What is the repeatability of this Photoelectric Groove Sensor?
The compact microgroove structure design typically achieves repeatability at the micrometer level, meeting the requirements of equipment with high positional accuracy requirements, such as precision positioning, origin zeroing, and high-speed indexing.
Q5: What is the lifespan and operating temperature range of the microgroove photoelectric sensor?
Utilizing a contactless photoelectric detection method, it is wear-free and has a longer lifespan. The typical operating temperature is around -25℃ to +55℃, and some industrial-grade models can adapt to a wider temperature range, meeting the long-term operating needs of most automated equipment.
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Slot type sensor specifications
| Model | Detection method | Detection distance | Detect object size | Different distance | Connection method | NPN/PNP | Indicator light | Control | Action mode | Voltage | Working current | Load current | Residual voltage | Response frequency | Protection circuit | Ambient temperature | Environment humidity | Protection level |
| GPS-670-N-2m | Through-beam type (slot type) | 5mm (groove width) | Above 2*0.8mm | Below 0.025mm | 4-wire lead-out (standard wire length 2m) | NPN | Red/Incoming light is on/Blackout light is off | 908nm | Normally open/normally closed (white line normally open/black line normally closed) | Below 5-30VDC | Below 8mA | Below 100mA | Below 1V | Above 1KHz | Output polarity reverse protection, power supply reverse polarity protection, surge absorption, short circuit protection | -25～70℃ | 35%~95%RH | IP50 IEC60529 |
| GPS-670-P-2m | Through-beam type (slot type) | 5mm (groove width) | Above 2*0.8mm | Below 0.025mm | 4-wire lead-out (standard wire length 2m) | PNP | Red/Incoming light is on/Blackout light is off | 908nm | Normally open/normally closed (white line normally open/black line normally closed) | Below 5-30VDC | Below 8mA | Below 100mA | Below 1V | Above 1KHz | 35%~95%RH | IP50 IEC60529 | ||
| GPS-671-N-2m | Through-beam type (slot type) | 5mm (groove width) | Above 2*0.8mm | Below 0.025mm | 4-wire lead-out (standard wire length 2m) | NPN | Red/Incoming light is on/Blackout light is off | 908nm | Normally open/normally closed (white line normally open/black line normally closed) | Below 5-30VDC | Below 8mA | Below 100mA | Below 1V | Above 1KHz | 35%~95%RH | IP50 IEC60529 | ||
| GPS-671-P-2m | Through-beam type (slot type) | 5mm (groove width) | Above 2*0.8mm | Below 0.025mm | 4-wire lead-out (standard wire length 2m) | PNP | Red/Incoming light is on/Blackout light is off | 908nm | Normally open/normally closed (white line normally open/black line normally closed) | Below 5-30VDC | Below 8mA | Below 100mA | Below 1V | Above 1KHz | 35%~95%RH | IP50 IEC60529 | ||
| GPS-672-N-2m | Through-beam type (slot type) | 5mm (groove width) | Above 2*0.8mm | Below 0.025mm | 4-wire lead-out (standard wire length 2m) | NPN | Red/Incoming light is on/Blackout light is off | 908nm | Normally open/normally closed (white line normally open/black line normally closed) | Below 5-30VDC | Below 8mA | Below 100mA | Below 1V | Above 1KHz | 35%~95%RH | IP50 IEC60529 | ||
| GPS-672-P-2m | Through-beam type (slot type) | 5mm (groove width) | Above 2*0.8mm | Below 0.025mm | 4-wire lead-out (standard wire length 2m) | PNP | Red/Incoming light is on/Blackout light is off | 908nm | Normally open/normally closed (white line normally open/black line normally closed) | Below 5-30VDC | Below 8mA | Below 100mA | Below 1V | Above 1KHz | 35%~95%RH | IP50 IEC60529 | ||
| GPS-673-N-2m | Through-beam type (slot type) | 5mm (groove width) | Above 2*0.8mm | Below 0.025mm | 4-wire lead-out (standard wire length 2m) | NPN | Red/Incoming light is on/Blackout light is off | 908nm | Normally open/normally closed (white line normally open/black line normally closed) | Below 5-30VDC | Below 8mA | Below 100mA | Below 1V | Above 1KHz | 35%~95%RH | IP50 IEC60529 | ||
| GPS-673-P-2m | Through-beam type (slot type) | 5mm (groove width) | Above 2*0.8mm | Below 0.025mm | 4-wire lead-out (standard wire length 2m) | PNP | Red/Incoming light is on/Blackout light is off | 908nm | Normally open/normally closed (white line normally open/black line normally closed) | Below 5-30VDC | Below 8mA | Below 100mA | Below 1V | Above 1KHz | 35%~95%RH | IP50 IEC60529 | ||
| GPS-674-N-2m | Through-beam type (slot type) | 5mm (groove width) | Above 2*0.8mm | Below 0.025mm | 4-wire lead-out (standard wire length 2m) | NPN | Red/Incoming light is on/Blackout light is off | 908nm | Normally open/normally closed (white line normally open/black line normally closed) | Below 5-30VDC | Below 8mA | Below 100mA | Below 1V | Above 1KHz | 35%~95%RH | IP50 IEC60529 | ||
| GPS-674-P-2m | Through-beam type (slot type) | 5mm (groove width) | Above 2*0.8mm | Below 0.025mm | 4-wire lead-out (standard wire length 2m) | PNP | Red/Incoming light is on/Blackout light is off | 908nm | Normally open/normally closed (white line normally open/black line normally closed) | Below 5-30VDC | Below 8mA | Below 100mA | Below 1V | Above 1KHz | 35%~95%RH | IP50 IEC60529 | ||
| GPS-675-N-2m | Through-beam type (slot type) | 5mm (groove width) | Above 2*0.8mm | Below 0.025mm | 4-wire lead-out (standard wire length 2m) | NPN | Red/Incoming light is on/Blackout light is off | 908nm | Normally open/normally closed (white line normally open/black line normally closed) | Below 5-30VDC | Below 8mA | Below 100mA | Below 1V | Above 1KHz | 35%~95%RH | IP50 IEC60529 | ||
| GPS-675-P-2m | Through-beam type (slot type) | 5mm (groove width) | Above 2*0.8mm | Below 0.025mm | 4-wire lead-out (standard wire length 2m) | PNP | Red/Incoming light is on/Blackout light is off | 908nm | Normally open/normally closed (white line normally open/black line normally closed) | Below 5-30VDC | Below 8mA | Below 100mA | Below 1V | Above 1KHz | 35%~95%RH | IP50 IEC60529 | ||
| GPS-676-N-2m | Through-beam type (slot type) | 5mm (groove width) | Above 2*0.8mm | Below 0.025mm | 4-wire lead-out (standard wire length 2m) | NPN | Red/Incoming light is on/Blackout light is off | 908nm | Normally open/normally closed (white line normally open/black line normally closed) | Below 5-30VDC | Below 8mA | Below 100mA | Below 1V | Above 1KHz | 35%~95%RH | IP50 IEC60529 | ||
| GPS-676-P-2m | Through-beam type (slot type) | 5mm (groove width) | Above 2*0.8mm | Below 0.025mm | 4-wire lead-out (standard wire length 2m) | PNP | Red/Incoming light is on/Blackout light is off | 908nm | Normally open/normally closed (white line normally open/black line normally closed) | Below 5-30VDC | Below 8mA | Below 100mA | Below 1V | Above 1KHz | 35%~95%RH | IP50 IEC60529 | ||
| GPS-677-N-2m | Through-beam type (slot type) | 5mm (groove width) | Above 2*0.8mm | Below 0.025mm | 4-wire lead-out (standard wire length 2m) | NPN | Red/Incoming light is on/Blackout light is off | 908nm | Normally open/normally closed (white line normally open/black line normally closed) | Below 5-30VDC | Below 8mA | Below 100mA | Below 1V | Above 1KHz | 35%~95%RH | IP50 IEC60529 | ||
| GPS-677-P-2m | Through-beam type (slot type) | 5mm (groove width) | Above 2*0.8mm | Below 0.025mm | 4-wire lead-out (standard wire length 2m) | PNP | Red/Incoming light is on/Blackout light is off | 908nm | Normally open/normally closed (white line normally open/black line normally closed) | Below 5-30VDC | Below 8mA | Below 100mA | Below 1V | Above 1KHz | 35%~95%RH | IP50 IEC60529 |
