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Photoelectric Liquid Level Sensor FF-UX Series

Photoelectric Liquid Level Sensor FF-UX Series.png

Built-in Amplifier, Space-Saving
The built-in amplifier eliminates the need for separate amplifier and detection probe setup, saving space.

Easy Installation
Installation is completed by securing the sensor to the pipe with a cable tie. The position can be easily readjusted if needed.

Kind

Rated Value

Product Model	FF-UX613-1	FF-UX613P-1
	NPN Output NO/NC	PNP Output NO/NC
Operation Mode	Light-Off ON, Light-On ON, Operation Mode
Detection Object	Liquid in the Tube (Detection may fail if the liquid has high viscosity or suspended particles)
Applicable Tube	Transparent Tube with Outer Diameter φ6~13 (Thickness Below 2mm)
Power Supply Voltage	5~30V DC, Ripple (P-P) 10% max
Current Consumption	25mA max
Operation Indicator	Red Status Indicator, Green Output Indicator
Light Source (Emission Wavelength)	Infrared LED (940nm)
Response Time	100Us
Switching Frequency	20Hz
Connection Method	Lead-Wire Type (Standard Cable Length 2m)
Power Protection	Reverse Connection Protection, Surge Absorption, Load Short-Circuit Protection
Ambient Illuminance	Incandescent Lamp: 8,000 Lux, Sunlight: 10,000 Lux
Ambient Temperature	Operating Temperature: -25℃~55℃, Storage Temperature: -40℃~85℃ (No Icing)
Ambient Humidity	Operating and Storage Humidity: 35%RH~85%RH
Residual Voltage	Below 1.0V max. (Load: 100mA, Cable Length: 2m)
Insulation Resistance	50MΩ max. (DC500V) Between Conductive Parts and Housing
Withstand Voltage	AC 1000V 50/60Hz 1min. Between Conductive Parts and Housing
Protection Rating (IP Rating)	IP50
Housing Material	ABS+PC

Precautions

Features of Photoelectric Liquid Level Sensor:
●No mechanical moving parts, high reliability.
●Compact size, can be installed in any direction.
●High precision in liquid level control.
●Complies with safety standard requirements.

Applications of Photoelectric Liquid Level Sensor:
●Water level control for electronic toilets.
●Pump control, water tower level control.
●Other appliances and equipment requiring liquid level control.

Operating Environment for Photoelectric Liquid Level Sensor:
●Do not use outdoors.
●Do not use in places where water, oil, or chemicals are directly splashed. The housing cover is made of polycarbonate, which is particularly soluble in alkalis, aromatic hydrocarbons, and chlorinated aliphatic hydrocarbons. Avoid contact with such chemicals.
●Avoid using in places with direct sunlight, corrosive gases, or sea breeze.

Operating Principle:
This sensor detects the presence or absence of liquid by utilizing the difference in refractive index between liquid and air.
①If there is no liquid in the tube, the light emitted from the emitter will be refracted by the tube and enter the receiver. (Light-On State)
②If there is liquid in the tube, the light emitted from the emitter will pass through the liquid and not enter the receiver. (Light-Off State)
Liquid Detection in Pipes
Cleaning Tank Liquid Level Detection

Photoelectric Liquid Level Sensor FF-UX Series

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Subcategory:

Photoelectric Liquid Level Sensor

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Advantage

Eight Reasons to Choose Tengyuanxiang

Quality Assurance

All products strictly follow ISO9001 standards, ensuring 100% factory-out qualification. Backed by a minimum 1-year warranty.

Comprehensive Product Range

Nearly 40 series of automated parts, over 60,000 domestic and international products cover most automated equipment design needs.

Fast Delivery

Over 95% of products shipped within 1-7 days.

Zero Inventory Solution

No minimum order quantity (MOQ) requirement, reducing inventory burden.

High Cost-effectiveness

Prices are 40% lower than foreign competitors and 22% lower than domestic ones for the same products. Quantity-based discounts available, with continuous price reviews.

Customization

Tailored solutions by a professional engineering team to tackle technical challenges.

Reliable After-sales

Professional management for quick customer complaint resolution.

Free Shipping

All orders in the Chinese mainland enjoy free delivery.

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Shape	Connection Method	Detection Distance	Action Mode	Model
				NPN	PNP
	Lead-wire Type (2m)	5mm (Slot Width)	NO/NC Switchable	FF-UX613-1	FF-UX613P-1