text.skipToContent text.skipToNavigation

U1HJ001 Fork Sensor for Label Detection

available on request
Thanks to their functional principle, ultrasonic fork sensors are ideally suited for reliable, contactless label detection. The emitter and the receiver are arranged as a light barrier in a single housing and detect even the smallest change in ultrasound attenuation. Attenuation results from the different material thicknesses of the base material with label and the bare base material. Transparent labels or labels made of paper and plastic can thus be reliably detected on any base material. The emitter and the receiver are slightly recessed into the housing in order to protect them from contact with the objects to be scanned.

Ultrasonic Data

Fork Width 3 mm
Smallest Detectable Gap 2 mm
Ultrasonic Frequency 300 kHz

Electrical Data

Supply Voltage 12 ... 30 V DC
Current Consumption (Ub = 24 V) < 45 mA
Switching Frequency 400 Hz
Response Time 1.25 ms
Temperature Range 0 ... 50 °C
Switching Output Voltage Drop < 1.5 V
Switching Output/Switching Current 250 mA
Short Circuit Protection yes
Reverse Polarity Protection yes
Protection Class III

Mechanical Data

Setting Method Teach-In
Housing Material Aluminum
Degree of Protection IP54
Connection M12 × 1; 4-pin


NPN NO yes
PNP NO yes

Adjustable parameters

Circuit NC

Standards and certificates

B_SYM_CE_01.pdf B_SYM_CE_01.pdf B_SYM_CE_01.pdf B_SYM_CE_01.pdf

Connection Diagram

Ctrl. Panel

01 = Switching Status Indicator
06 = Teach Button
68 = supply voltage indicator

Dimensioned Picture

Dimensions specified in mm (1 mm = 0.03937")
Initial start-up instructions
Operating instructions
Declarations of Conformity / Approvals
Product Comparison