Description

Honeywell MC-TAIL02 Low-Level Analog Input Field Termination Assembly

The Honeywell MC-TAIL02 51304437-150, also cataloged as the MC-TAIL02 Low-Level Analog Input Field Termination Assembly, operates as a dedicated hardware component for low-level temperature and millivolt signal termination within Honeywell Experion PKS and TDC 3000 HPM systems.

Hardware Specifications

Parameter	Specification
Model	MC-TAIL02 51304437-150
Brand	Honeywell
Origin	USA
Operating Temp	-20 deg C to +70 deg C
Power Consumption	Not specified in available data
Module Type	Low-Level Analog Input Field Termination Assembly (LLAI FTA)
Input Signal Type	Thermocouple, RTD, millivolt signals
Channel Capacity	8 or 16 channels depending on system configuration
Nominal Operating Voltage	24 VDC
Isolation Voltage	1500 VAC channel-to-ground / 500 VDC
Storage Temperature	-40 deg C to +85 deg C
Relative Humidity	10% to 95% RH non-condensing
Mounting Type	DIN rail mounting or cabinet mounting
Signal Functions	Field signal termination, routing, filtering, and transient protection

Honeywell DCS Analog Signal Conditioning Features

The MC-TAIL02 performs low-level analog signal termination for temperature measurement devices connected to Honeywell process control platforms. It accepts thermocouple, RTD, and millivolt inputs, then routes conditioned signals to the associated I/O processing hardware.

In addition, the assembly supports channel-to-channel isolation functions that reduce interference between measurement circuits. The termination design incorporates filtering and surge protection components to limit electrical disturbances from field wiring.

For temperature measurement applications, the FTA supports cold junction compensation (CJC) functions when used with compatible Honeywell input processing modules. Therefore, the system can maintain thermocouple measurement accuracy by compensating for reference junction temperature variations.

Frequently Asked Questions

Q: What field signals can the Honeywell MC-TAIL02 51304437-150 accept?
A: The MC-TAIL02 accepts low-level analog signals including thermocouples, RTDs, and millivolt sources. The connected I/O module determines the final signal processing configuration.

Q: Does the MC-TAIL02 provide electrical isolation for field inputs?
A: Yes. The assembly provides channel-to-ground isolation to separate field signal circuits from system electronics and reduce electrical interference.

Q: Can the MC-TAIL02 be replaced without disconnecting field wiring?
A: The FTA design allows field wiring to remain connected during module service activities. Maintenance procedures must follow the specific Honeywell cabinet and system shutdown requirements.

Field Installation Guidelines

• Install the MC-TAIL02 in the designated Honeywell control cabinet location using the approved mounting hardware.
• Verify that terminal assignments match the configured I/O channel mapping before connecting field devices.
• Use shielded instrumentation cable for thermocouple, RTD, and millivolt signal wiring where required by the process environment.
• Connect cable shields according to the Honeywell grounding specification to reduce electromagnetic interference.
• Separate low-level analog signal cables from high-voltage power wiring and switching circuits.
• Confirm field sensor polarity, terminal tightness, and grounding continuity before system commissioning.
• Check that the connected I/O processor configuration matches the installed FTA signal type and channel allocation.

Specifications

• Brand: Honeywell

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems