Here’s a concise breakdown of the KL3222 Beckhoff Bus Terminal:

• Functionality: A 2-channel analog input terminal designed for temperature measurement using RTD sensors (e.g., Pt100).

• Precision: Offers 16-bit resolution with high accuracy.

• Sensor Compatibility: Supports Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni1000, and resistance measurement (e.g., potentiometers).

• Temperature Range:

  • Pt sensors: -200°C to +850°C

  • Ni sensors: -60°C to +250°C

  • High-precision mode: -200°C to +320°C

• Connection Method: 4-wire technology (2/3-wire possible with adjustments).

• Conversion Time: Typically 50 ms.

• Measurement Accuracy: 0.1°C at 40°C ambient temperature.

• Electrical Isolation: 500V (K-bus/signal voltage).

• Current Consumption: 60 mA (via K-bus).

• Special Features: Open-circuit recognition, high-precision measurement, and error LEDs for sensor faults.

• Physical Specs:

  • Weight: ~70g

  • Dimensions: 12mm x 100mm x 68mm

  • Installation: DIN rail mounting

• Environmental Conditions:

  • Operating Temperature: 0°C to 55°C

  • Storage Temperature: -25°C to +85°C

  • Humidity: 95% (no condensation)

• Certifications: CE, CCC, UL, ATEX, IECEx