The Beckhoff KL3052 Bus Terminal is a compact and reliable analog input module designed for the acquisition of 4…20 mA current signals, the most common standard in industrial process control. With two single-ended input channels, it enables efficient monitoring of process variables such as pressure, flow, temperature, and level within Beckhoff’s modular Bus Terminal I/O system.

The terminal’s design is optimised for current-loop signals, ensuring compatibility with a wide range of industrial transmitters and sensors. Each channel measures current values with 12-bit resolution, providing sufficient granularity for accurate monitoring and control in automation applications. This makes the KL3052 well suited for both general-purpose and more specialised measurement tasks in machine and process automation.

With a conversion time of approximately 2 ms, the KL3052 delivers fast and responsive updates to the control system. This ensures that dynamic process changes are captured without noticeable delay, enabling real-time monitoring and control. Its performance is particularly valuable in applications where rapid feedback is essential, such as condition monitoring, machine diagnostics, or proportional control loops.

The KL3052 is built with an internal resistance of 80 Ω plus 0.7 V diode voltage, ensuring stable measurement performance and reliable current acquisition across its two channels. Operating on a 24 V DC supply via the power contacts, the terminal integrates seamlessly into existing automation infrastructures, simplifying installation and reducing wiring effort.

As part of Beckhoff’s Bus Terminal system, the KL3052 supports modular and scalable system design. It can be easily combined with digital, analog, or communication terminals, providing engineers with a flexible platform to configure I/O systems tailored to specific project needs. Its compact form factor makes it particularly valuable for applications where cabinet space is limited.

Practical uses of the KL3052 include acquiring process signals from transmitters in chemical plants, water and wastewater treatment, HVAC systems, food and beverage processing, and factory automation. In each of these areas, the KL3052 delivers dependable signal acquisition, enabling operators to maintain precise control over critical process variables.

In summary, the Beckhoff KL3052 Bus Terminal is a versatile and cost-effective analog input module for acquiring 4…20 mA current signals. With two single-ended input channels, 12-bit resolution, ~2 ms conversion time, and robust internal design, it ensures accurate, stable, and responsive signal acquisition for a wide variety of automation tasks.