Overview
Configured for low-level RTD signal multiplexing in a Honeywell DCS I/O interface, the Honeywell MU-TAMR03 51309218-125 (MU-TAMR03 Low Level Analog Mux Module) provides a 16-channel input multiplexing interface. The unit uses compression terminals and a single IOP interface. It does not support redundancy and is specified as non-CE compliant and non-conformally coated.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | MU-TAMR03 51309218-125 |
| Brand | Honeywell |
| Product Type | Low Level Analog Input Multiplexer RTD FTA |
| Function | Low Level Analog Mux |
| Input Channels | 16 |
| Input Type | RTD |
| Terminal Type | Compression |
| IOP Interface | Single IOP interface |
| Weight | 0.7 kg |
| Estimated Shipping Dimensions | 30.8 cm x 12.1 cm x 7.2 cm |
| FTA Type | LLMux RTD FTA with compression terminals |
Honeywell Process Signal Multiplexing
The MU-TAMR03 accepts low-level RTD signals through 16 input channels and routes the selected signals through its single IOP interface. Therefore, the module provides the physical termination and multiplexing path rather than a redundant input architecture.
For RTD installations, maintain correct sensor lead identification and separation from high-level power conductors. In addition, preserve signal shielding and grounding practices required by the associated Honeywell I/O system. The supplied data does not specify 4-20 mA HART capability, FOUNDATION Fieldbus, Profibus PA connectivity, or channel-to-channel isolation, so these functions should not be assigned to this module.
Frequently Asked Questions
Q: How many RTD input channels does the MU-TAMR03 provide?
A: The module provides 16 RTD input channels.
Q: Does the MU-TAMR03 support redundant operation?
A: No. The supplied specifications explicitly state that redundancy is not supported.
Q: What termination method does the module use?
A: The module uses compression terminals for its RTD field connections.
Field Installation Guidelines
- Verify the module identification and 51309218-125 part number before installation.
- Install the module using the mechanical provisions of the compatible Honeywell I/O assembly.
- Connect RTD conductors to the designated compression terminals according to the system wiring documentation.
- Keep low-level RTD wiring separated from AC power, switching, and high-current conductors.
- Route shielded signal cables according to the Honeywell system grounding specification.
- Avoid creating unintended ground loops through multiple shield termination points.
- Inspect compression terminals for secure conductor retention before energizing the I/O system.
- Confirm the single IOP interface connection before commissioning.
- Because the module is not conformally coated, protect it from condensation, conductive dust, and other environmental contamination outside its specified installation conditions.
- Confirm the installed hardware configuration against the applicable Honeywell system documentation before placing the channel into service.
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