Pm18t NPN/PNP Metal Photoelectric Sensor for Optical Turnstiles

Product Description

Product Description

PM18 series proximity sensor is one metal shell cylindrical photocell sensor; It includes a through-beam type, polarized reflective type, and diffused type.

PM18T opposed type photoelectric sensor is our most popular model used at turnstiles. PM18T photoelectric sensor installed at the turnstile gate entrance is used to detect whether people intrude into the turnstile gate. When swiping the card outside the yellow line, there is no object at the gate entrance, and the sensor signal is standard, the wing door will open; if the person goes inside the yellow line, the sensor signal at the gate entrance changes, even if swiping the card, the wing door will not open. The purpose of this design is to prevent the opening and closing of the wing gate when swiping the card at a short distance, which may cause potential safety hazards, and also prevent ticket evasion.


Features
1. Product detection distance 20m
2. With reverse polarity protection, overcurrent, and overvoltage protection functions
3. Epoxy sealing
4. Resistant to harsh environments
 

 

Product Series	Product Model	Supply Voltage	Sensing Distance	Housing	Output Mode	Action Mode
PM18T	PM18T-2ND	10~30V DC	20m	stainless steel	NPN	Dark On
	PM18T-2NL				NPN	Light On
	PM18T-2PD				PNP	Dark On
	PM18T-2PL				PNP	Light On

 

Photoelectric sensor	PM18T-2ND
Detection Type	Opposed type
Detecting Object	Min Φ18mm opaque object
Detecting Distance	20m
Supply Voltage	10~30V DC
No-load Current	Max.40mA
Response Time	Max.15ms
Light Source	Infrared LED(modulated)
Action Mode	Dark On
Control Output	NPN open collector
Indicator	Power indicator: Green   Action indicator: Red
Circuit Protection	Reverse polarity protection, short circuit protection, over-voltage protection
Ambient Brightness	Sunlight: Max.11000lx; Fluorescent:Max.3000lx
Ambient Temperature	-20~+60ºC(Non-freezing),Storage:-25~+75ºC
Ambient Humidity	0~90%RH
Material	Housing: Cr plated Cu, Lens: PMMA
Cable	Emitter:blackΦ5.  2×0.3mm ²; Receiver: GreyΦ5.  3×0.2mm ²
Protection Rate	IP67
Accessory	Screw

 

Photoelectric sensor	PM18T-2NL
Detection Type	Opposed type
Detecting Object	Min Φ18mm opaque object
Detecting Distance	20m
Supply Voltage	10~30V DC
No-load Current	Max.40mA
Response Time	Max.15ms
Light Source	Infrared LED(modulated)
Action Mode	Light On
Control Output	NPN open collector
Indicator	Power indicator: Green   Action indicator: Red
Circuit Protection	Reverse polarity protection, short circuit protection, over-voltage protection
Ambient Brightness	Sunlight: Max.11000lx;Fluorescent: Max.3000lx
Ambient Temperature	-20~+60ºC(Non-freezing),Storage:-25~+75ºC
Ambient Humidity	0~90%RH
Material	Housing: Cr plated Cu, Lens: PMMA
Cable	Emitter:blackΦ5.  2×0.3mm ²; Receiver: GreyΦ5.  3×0.2mm ²
Protection Rate	IP67
Accessory	Screw

Product Application

Certifications

Packaging & Shipping

Product self-inspection steps

1. Detect whether the installation position of the object and the proximity sensor has deviated, slacked, or skewed; whether there is slack, poor contact, or disconnection in the wiring and connection parts
2. Whether there is adhesion or accumulation of metal dust, etc.
3. Is there any abnormality in using temperature conditions and environmental conditions?
4. Set whether the flashing of the display lamp type is abnormal.
If you must be careful not to disassemble and repair by yourself during the inspection, and to easily find out the fault, you can investigate the operating state of the sensor through the connection with the portable detector, and then repair it according to the situation.

In order to make the photoelectric sensor work stably for a long time, it should be regularly checked with the same contents as the general control equipment to maintain its long-term function. The photoelectric sensor can also be stocked. Once a problem with the photoelectric sensor is found, we can replace it in time without affecting the use of the sensor.

What is a photoelectric sensor?

Photoelectric sensors, also known as photo eyes, emit a beam of light that is used to detect the presence or absence of items and equipment or changes in surface conditions. When the emitted light is interrupted or reflected by the object, the change in light patterns is measured by a receiver and the target object or surface is recognized. Photoelectric sensors are very common in industrial manufacturing, such as material handling, packaging, food and beverage, medical, and many others.
Depending on the style selected, they can be used with or without a reflector, and be self-contained, long-range, heavy-duty, or compact. There are much different housing and mounting options to offer a correct fit that meets the demands of each application. They perform a wide variety of tasks and some of them can even be used in harsh environments. 
 

Company Profile

Tianjin G-TEK sensor technology co..ltd is indicated in providing intelligent sensor products and customized solutions for logistics automation, factory automation and process automation. The predecessor of the company is Tianjin G-TEK automation technology Co.,ltd, a professional sensor manufacturer and sensor solution provider,  which was established in 2003 with business ranges from Proximity switches, photoelectric sensors, measurement, and safety light curtains to Laser rangefinder sensors, laser radar., etc and serves for Intelligent buildings, intelligent transportation, logistics automation, factory automation and industry robot fields.
Tianjin G-TEK sensor technology co.,ltd was established in 2014 in Xiqing District, Tianjin City and it will fully inherit and expand the original G-TEK automation business with the construction and operation of the new R&D and manufacturing base.

Q: Is the product shipped and arrive fast?
A: The production cycle for large quantities of products takes 15-30 days, depending on the product.

Q: Can you provide professional advice promptly?
A: We have a professional technical team that can patiently help you answer all professional questions.

Q: Can you provide customized products/services?
A: Yes, we can provide customized products, but the customization needs to meet a certain quantity.

Q: How is the quality of the product? Is the quality stable?
A: G-TEK Sensors has been focusing on the sensor field for 23 years. The quality of the sensor has the double affirmation of the CE certificate and customer reputation.

Q: What is your MOQ?
A: We offer MOQ per piece; it depends on your specific order.

Q: Is there any relevant terms of service and warranty information?
A: We offer a warranty on all items. The sensor products are guaranteed for 15 months, and the light curtain and lidar products are guaranteed for 18 months. For after-sales questions, you can directly contact the product salesperson.

Q: Is there any relevant information available for download on the website?
A: Yes, if you want to download the relevant product manual, you can go to our official website to download it.

Q: Can I be your reseller?
A: Yes, we are looking for distributors in overseas markets.