Accurate SICK UC4-11345 (6034668) ultrasonic sensor for precise distance measurement. Features 13mm-150mm range, analog output, and IP67 protection in an M18 housing.

SKU SICK-6034668 Category Ultrasonic Distance Sensors - SICK UC4

Product Description

Product Overview

Manufacturer Part Number: 6034668
Model Name: UC4-11345
Sensing Principle: Ultrasonic distance sensor
Operating Range: 13 mm to 150 mm (limiting range up to 250 mm)
Output Type: Analog current output (4 mA – 20 mA) and 1 x NPN switching output
Housing Type: Cylindrical M18 with a compact rectangular head
Connection: M12 male connector, 4-pin
Ingress Protection: IP65 / IP67

Product Description

The SICK UC4-11345 (6034668) is a high-performance ultrasonic sensor from the UC4 product family, designed for demanding automation environments where space is limited. This sensor utilizes advanced ultrasonic technology to provide reliable distance measurements regardless of object color, transparency, or surface texture. It features a specialized M18 threaded mounting design integrated with a compact housing, allowing for flexible installation in tight industrial spots.

Equipped with both an analog current output (4 mA to 20 mA) and a digital NPN switching output, it offers versatile integration into control systems for continuous level monitoring or object detection. The UC4-11345 is particularly effective at detecting difficult materials such as glass, liquids, and dark or shiny foils. Its robust construction ensures stable operation in temperatures ranging from -25 °C to +70 °C. With integrated temperature compensation and high immunity to ambient noise and dust, this sensor delivers consistent accuracy and long-term reliability for precision-driven industrial processes.

Key Performance Features

Multi-Output Versatility: Simultaneous analog (4–20 mA) and digital (NPN) signals for comprehensive process control.
Material Independence: Reliably detects transparent, dark, or reflective objects that optical sensors may miss.
High Precision: Resolution of ≥ 0.1 mm with a repeatability of ± 0.15% for exact positioning tasks.
Temperature Compensation: Built-in compensation ensures measurement stability despite fluctuating ambient temperatures.
Compact Integration: Small housing footprint combined with M18 threads facilitates easy retrofitting into existing machines.
Simple Configuration: Quick adjustment of detection settings via teach-in procedures.

Ideal Applications

Level Control: Monitoring liquid levels in small containers or chemical tanks.
Transparent Object Detection: Reliable sensing of glass bottles, clear plastic trays, and packaging films.
Positioning Tasks: Precise distance control for robotic arms or automated assembly lines.
Diameter Measurement: Monitoring the winding and unwinding of foils, paper, or wire on reels.
Height Monitoring: Checking the fill height of small parts in feeders or hoppers.

Mechanics/electronics

Supply voltage V_s	DC 15 V … 30 V ¹⁾
Power consumption	≤ 0.75 W ²⁾
Initialization time	< 300 ms
Design	Rectangular
Housing material	Plastic (ABS) Ultrasonic transducer: polyurethane foam, glass epoxy resin
Connection type	Male connector, M8, 3-pin
Indication	2 x LED
Weight	10 g
Sending axis	Straight
Dimensions (W x H x D)	16 mm x 40.1 mm x 16.7 mm
Enclosure rating	IP65 / IP67
Protection class	III

¹⁾ Limit values, reverse-polarity protected, operation in short-circuit protected network: max. 8 A.
²⁾ Without load.

Performance

Operating range, limiting range	13 mm … 100 mm, 150 mm ¹⁾
Target	Natural objects
Resolution	≥ 0.1 mm
Repeatability	± 0.15 % ²⁾
Accuracy	± 1 % ³⁾
Response time	24 ms
Switching frequency	30 Hz
Output time	8 ms
Ultrasonic frequency (typical)	380 kHz
Detection area (typical)	See diagrams
Additional function	Adjustable operating modes: Switching point (DtO) / Switching window/Background (ObSB), teach-in of digital output, invertable digital output, teach-in button(s) (can be deactivated), reset to factory default ⁴⁾

¹⁾ Teach-in from 21 mm.
²⁾ In relation to the current measured value, minimum value ≥ resolution.
³⁾ Referring to current measurement value.
⁴⁾ Functions may vary depending on sensor type.

Interfaces

Digital output
Number	1 ¹⁾
Type	NPN
Maximum output current I_A	≤ 200 mA

Hysteresis

2 mm

¹⁾ NPN: HIGH = ≤ 2 V / LOW = U_V.

Ambient data

Ambient temperature, operation	–25 °C … +70 °C ¹⁾
Ambient temperature, storage	–40 °C … +85 °C
Temperature drift	0.17 % / K ²⁾

¹⁾ At operating temperatures of > 50 °C, the rear side of the UC4 must be installed with its surface flat against a bracket.
²⁾ Referring to current measurement value.