The Keyence EX-305 is a precision-engineered sensor head designed to deliver accurate displacement and position measurements in industrial automation environments. As part of Keyence’s EX series, the EX-305 combines compact size, robust performance, and versatile output capabilities, making it an excellent choice for demanding applications that require both reliability and high responsiveness.

Measuring only ø5.4 mm in diameter, the EX-305’s slender cylindrical body enables installation in constrained spaces where standard-sized sensors cannot be accommodated. Despite its compact build, the sensor provides a measuring range of 0 to 1 mm, optimized for applications that demand high-precision displacement detection at close distances. This makes it ideal for integration into assembly lines, robotics, and inspection equipment where space efficiency and measurement accuracy are critical.

The EX-305 is designed to deliver exceptional performance with its dual analog output options. Users can choose between a 0 to 5 V voltage signal or a 4 to 20 mA current signal, ensuring seamless compatibility with different controllers, amplifiers, and data acquisition systems. With an output impedance of 100 Ω for voltage and support for loads up to 350 Ω on the current side, the sensor head ensures stable signal transmission across a variety of setups.

One of the most valuable features of the EX-305 is its high-speed response frequency, which can reach 18 kHz in HIGH mode. This makes it well-suited for detecting rapidly changing targets, vibrations, or fast-moving components. For applications requiring enhanced stability and filtering, the LOW mode provides a reduced frequency of 1.3 kHz, balancing precision with noise reduction. The combination of selectable response speeds allows engineers to adapt the sensor’s behavior to match specific application requirements.

Accuracy is a cornerstone of the EX-305’s design. It delivers a resolution of 0.04% of full scale and maintains linearity within ±1% F.S., ensuring that the output remains consistent and reliable across the full measuring range. These specifications guarantee that the sensor produces dependable data even in critical quality control and inspection tasks.

The EX-305 is paired with the EX-201 amplifier unit, which enhances functionality and provides an intuitive interface for signal processing and monitoring. This pairing ensures that users can deploy the sensor with minimal setup while gaining full control over output adjustments and response settings.

In summary, the Keyence EX-305 sensor head offers a powerful combination of compact design, versatile output options, fast response times, and high accuracy, making it an indispensable tool for precision measurement in modern automation systems. It is well-suited for applications such as micro-assembly inspection, electronic component positioning, high-speed machinery monitoring, and feedback control in precision manufacturing environments.