BECKHOFF KM3701-0340 Differential Pressure Input Terminal

The KM3701-0340 is a specialized 1-channel analog input terminal designed for precision differential pressure measurement. Manufactured by BECKHOFF, this module is optimized for applications involving non-aggressive gases, offering a measuring range of -100 to +100 hPa (-100 to +100 mbar). Featuring a resolution of 0.1 hPa per digit and a fast typical measuring speed of 5 ms, the KM3701-0340 is an ideal solution for accurate pressure monitoring and control tasks in ventilation, climate control, and industrial process automation.

Features

• 1-channel differential pressure measurement
• Measuring range: -100 to +100 hPa (-100 to +100 mbar)
• High resolution: 0.1 hPa per digit
• Fast measuring speed: 5 ms typical
• Suitable for non-aggressive gases
• Robust design with overload protection: 500 hPa differential / 5000 hPa to ambient
• Compact terminal module design for K-bus integration

Applications

• HVAC system pressure monitoring
• Filter performance tracking
• Airflow and differential pressure measurement in industrial processes
• Cleanroom pressure control

Technical Specifications

Installation Guidelines

• Ensure the module is installed in an environment free of aggressive or corrosive gases, as it is only suitable for non-aggressive gas media.
• Mount the terminal on a standard 35 mm DIN rail in a position that minimizes external vibration.
• Use appropriate pressure tubing compatible with the terminal's pressure connection ports to ensure a leak-free installation.
• Maintain ambient conditions between 0 and +55 degC for optimal measurement accuracy.
• Adhere to EMC standards EN 61000-6-2/EN 61000-6-4 by ensuring correct grounding of the mounting rail and cabling practices.

Compliance and Certifications

• CE
• UL