Honeywell 51120673-101 Analog Input Card Module

Honeywell 51120673-101 Analog Input Card Module

The Honeywell 51120673-101, also cataloged as the 51120673 analog input card, operates as a high-level analog input module for direct signal acquisition in Honeywell control system architectures.

Hardware Specifications

4-20 mA HART Loop Protocol and Cold Junction Compensation

The 51120673-101 supports integration with Honeywell analog subsystems using 4-20 mA HART loop protocols. Signal conditioning includes cold junction compensation (CJC) for thermocouple inputs, ensuring accurate temperature measurement across varying ambient conditions. Channel-to-channel isolation maintains measurement integrity in multi-signal environments.

Frequently Asked Questions (FAQ)

Q: What is the typical response time of the module? A: The analog processing time is less than 10 ms.

Q: Does the module support thermocouple inputs directly? A: Yes. Thermocouple inputs are supported with cold junction compensation for accuracy.

Q: What is the nominal supply voltage? A: The module operates at 24 VDC nominal with ±15% tolerance.

Field Installation Guidelines

• Mount the module in designated Honeywell chassis slots with full connector engagement.
• Use shielded cabling for analog signals, grounding shields at the rack end only.
• Separate analog wiring from high-voltage conductors to minimize interference.
• Verify polarity of the 24 VDC supply before energizing.
• Maintain ambient conditions within specified operating temperature and humidity limits.
• Confirm calibration for RTD and thermocouple inputs during commissioning.