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Description
The Honeywell MU-TAIH12 (Part Number 51304337-100) is a high-level analog input and redundant field termination assembly (FTA) developed for the HC900 control platform. Engineered for 16-channel process signal acquisition, this assembly is a critical component in safety-instrumented systems and high-availability process control environments, including chemical processing, power generation, and large-scale manufacturing facilities.
Features
- 16-channel high-level analog input capacity.
- Supports STI redundant field termination architecture for enhanced system availability.
- Maintains deterministic scan performance; no input cycles are lost or delayed during module swap or failover.
- Passive signal conditioning design ensures high-fidelity transmission of field instrument resolution without internal scaling distortion.
- Configured with 145-ohm non-fused current-limiting resistors.
- Designed for compliance with Class 1, Division 2 hazardous area requirements.
Applications
This FTA is specifically utilized in distributed control systems (DCS) where signal integrity and continuous monitoring are paramount. It is ideal for critical process loops where downtime must be minimized during maintenance or unexpected hardware transitions.
Technical Specifications
| Model |
MU-TAIH12 |
| Part Number |
51304337-100 |
| Brand |
Honeywell |
| Series |
HC900 |
| Input Channels |
16 |
| Resistor Network |
145 ohm, non-fused |
| Redundancy |
Supported (STI) |
| Weight |
0.55 kg |
Installation Guidelines
- Ensure the system power is completely disconnected before attempting to install or remove the FTA module to prevent electrical damage or unexpected signal spikes.
- Verify that the mounting environment meets the specified environmental ratings for the HC900 series.
- Handle with standard ESD (electrostatic discharge) precautions to protect sensitive signal paths.
- Ensure all field wiring is properly terminated and shielded to maintain signal integrity and adhere to Class 1, Division 2 installation standards where applicable.
- Check that the redundant cabling is correctly seated to maintain the integrity of the failover path.
FAQ
Does this module support redundant operation?
Yes, the MU-TAIH12 is designed for STI redundant configurations, allowing for seamless failover without interrupting the input scan cycle.
What is the primary function of the 145-ohm resistors on this board?
The 145-ohm non-fused resistors provide current limiting for the field input signals, facilitating compliance with Class 1, Division 2 hazardous location standards.
