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Shenzhen Jingjiake Intelligent Sensor Co., Ltd
GuangDong-HuiZhou, ChinaUDC/DBK Series
Through-beam Ultrasonic Sensors
• Features a memory learning function, allowing flexible detection of paper and films as thin as 0.2 mm.
• IP65-rated waterproof and dustproof design effectively protects against water splashes, sparks, and dust.
• Stable performance, high reliability, and strong versatility.

Sensing Range
20~40mm
Supply Voltage
18-30V DC, 10% Vpp
Transducer Frequency
Approx. 300kHz
Detection Method
Non-contact Type
Detectable Materials
Suitable for reliable detection of no material, single sheet, or multi-sheet overlapped materials
Output Type
3-channel NPN
Calibration Mode
With Calibration Mode
No-load Current
<50mA
Impedance
>4kΩ
Indicator
LED Green: Single sheet detected LED Yellow: No target (air) LED Red: Double sheets detecte
Output Details
3 NPN normally open (NO) outputs, corresponding to air, single sheet and multi-sheet respectively. Rated current 100mA, with short circuit protection and overload protection
Teaching Line
Used to calibrate the energy value of a single sheet for different materials
Response Delay
Approx. 4ms
Operating Temperature-20℃~+50℃ (253~323K)
Storage Temperature-40℃~+85℃ (233~358K)
EMC ComplianceGB/T17626.2-2006, GB/T17626.4-2008
Connection MethodVC, 6-core cable, 2m length
Protection RatingIP65
Housing MaterialNickel-plated Brass
Weight230g
- High-precision Detection

- Model DBK+4/M12/3E3

- IP65 Waterproof and Dustproof Design

Product Description
Technical Parameter
Configuration List
Technical Drawing
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