Overview
The Honeywell MC-TAMR04 51305907-175, also cataloged as the MC-TAMR04 UCN Low Level Analog Input Multiplexer, provides low-level analog signal multiplexing within a Honeywell UCN architecture. The hardware uses a 24-bit ADC, high input impedance, and high common-mode rejection for low-level analog acquisition. The supplied description identifies the unit as a low-level analog multiplexer for thermocouple signals.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | MC-TAMR04 51305907-175 |
| Base Model | MC-TAMR04 |
| Product Type | UCN Low Level Analog Input Multiplexer |
| Manufacturer | Honeywell |
| Origin | USA |
| Shipment Location | Xiamen, China |
| Weight | 0.7 kg |
| Dimensions | Estimated shipping size: 30.5 x 11.9 x 7 cm |
| Resolution | 24-bit ADC |
| Accuracy | +/- 0.02% of reading +/- 1 uV |
| Common Mode Rejection | >140 dB at 50/60 Hz |
| Input Impedance | >10 Mohm |
| Power Consumption | 15 W typical, 20 W maximum |
| Tariff Code | 8537101190 |
| Status | Discontinued by manufacturer |
| Signal Application | Low-level analog / thermocouple multiplexing |
Honeywell Process Control Signal Characteristics
The MC-TAMR04 handles low-level analog signals where input impedance and common-mode rejection directly affect measurement integrity. Its input impedance exceeds 10 Mohm, which limits loading on connected low-level signal sources.
Furthermore, the 24-bit ADC provides high-resolution digital conversion for the acquired analog signal. The specified common-mode rejection exceeds 140 dB at 50/60 Hz, reducing the effect of common-mode power-frequency interference on low-level measurements.
For thermocouple applications, the signal path requires appropriate field wiring, shielding, and compensation practices. The supplied description identifies the related hardware function as low-level analog thermocouple multiplexing; however, it does not specify thermocouple type, channel count, or cold junction compensation parameters.
Frequently Asked Questions (FAQ)
Q: What conversion resolution does the MC-TAMR04 51305907-175 provide?
A: The module uses a 24-bit ADC for low-level analog signal conversion.
Q: What is the specified input impedance?
A: The input impedance exceeds 10 Mohm, minimizing electrical loading on the connected analog signal source.
Q: What power level does the module require?
A: The specified power consumption is 15 W typical and 20 W maximum.
Field Installation Guidelines
- Install the module in the designated Honeywell system hardware location and verify mechanical seating before energizing the assembly.
- Keep low-level analog and thermocouple wiring separated from high-voltage power conductors and high-current switching circuits.
- Use shielded instrumentation cable where the installation requires additional noise control.
- Terminate cable shields according to the applicable Honeywell system grounding practice and site instrumentation standard.
- Avoid unnecessary cable loops and parallel routing with high-noise conductors.
- Verify field wiring polarity, terminal identification, and signal continuity before applying system power.
- Confirm that the connected signal type matches the configured input function before commissioning.
- Because the supplied data does not define hot-swap capability, channel count, terminal assignments, or environmental limits, do not assume these parameters without the applicable Honeywell documentation.
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