MU-TAIH13 51309138-125 High Level Analog Input FTA | Honeywell

The Honeywell 51309138-125, also cataloged as the MU-TAIH13 High Level Analog Input FTA, operates as a dedicated hardware component for field signal conditioning and analog input conversion within Honeywell TPS and Experion PKS platforms. It routes 16 independent analog channels receiving 4-20 mA and 0-10 V signals directly to central process controllers with high-resolution analog-to-digital conversion.

Hardware Specifications

4-20 mA HART Loop Protocol & Channel-to-Channel Isolation

The MU-TAIH13 (51309138-125) features channel-to-channel and system galvanic isolation to prevent ground loop currents from degrading signal accuracy across 4-20 mA current loops. Integrated signal conditioning and active filtering mitigate common-mode noise and cross-channel interference. This high-density isolation barrier allows reliable signal pass-through for 4-20 mA HART loop protocol telemetry, preserving measurement precision across high-vibration and electrically noisy cabinet wireways.

Frequently Asked Questions

Q: Can the MU-TAIH13 FTA be replaced under live system power?

A: To prevent backplane bus communication errors and electrical transients, power down the rack segment or isolate the field termination assembly before insertion or removal.

Q: How does the module support high-availability redundant configurations?

A: The hardware architecture allows parallel connection to dual I/O cards, enabling seamless signal takeover in redundant controller setups without interrupting active loop processing.

Field Installation Guidelines

1. De-energize system rack power prior to installing or removing the FTA module from the cabinet mounting structure.
2. Route incoming 4-20 mA and 0-10 V signals using shielded twisted-pair cabling to minimize electromagnetic interference (EMI).
3. Connect signal cable shields to the main cabinet earth ground bus at a single point to preserve channel-to-channel isolation limits.
4. Torque all Type C compression terminals to standard torque specs to ensure solid contact resistant to field vibration.
5. Maintain unobstructed airflow around the FTA assembly so operating temperatures stay within the designated 0 to 60 deg C range.