The Honeywell 51304477-100 MU-TAMR02, also cataloged as the MU-TAMR02 Analog Input Multiplexer, operates as a dedicated hardware component for low-level analog input signal acquisition and multiplexed data routing within Honeywell TDC 3000 and Experion PKS DCS networks.
Hardware Specifications
Parameter
Specification
Model
MU-TAMR02
Part Number
51304477-100
Brand
Honeywell
Origin
USA / Global Assembly
Product Type
Low-Level Analog Input Multiplexer
System Compatibility
Honeywell TDC 3000, Experion PKS
Input Voltage
24 VDC
Current Consumption
300 mA
Operating Temp
0 deg C to 60 deg C
Humidity
5% to 95% RH, non-condensing
Dimensions
254 x 178 x 51 mm
Weight
0.68 kg
Cold Junction Compensation and Signal Conditioning
Channel-to-Channel Signal Multiplexing: Processes low-level analog signals from thermocouples and RTD field sensors across multiplexed channels to minimize wiring complexity while maintaining differential signal integrity.
Integrated Cold Junction Compensation (CJC): Features onboard CJC temperature sensing arrays to normalize thermoelectric voltage offsets directly at the termination boundary across varying ambient thermal conditions.
Galvanic Noise Isolation: Implements differential signal isolation across backplane communication links to suppress common-mode noise and ground loop currents generated in high-EMI plant environments.
Frequently Asked Questions
Q: Does the MU-TAMR02 require external power supplies beyond the 24 VDC bus input?
A: No, the module operates directly from the standard 24 VDC backplane/field power bus at a nominal current consumption of 300 mA.
Q: Can this multiplexer module be operated in non-condensing high-humidity environments?
A: Yes, the module is rated for continuous operation under non-condensing humidity levels ranging from 5% to 95% RH.
Field Installation Guidelines
Cabinet Mounting and Torque: Secure the assembly using designated mounting holes within the Honeywell DCS rack assembly. Fasten retainers evenly to maintain solid electrical grounding to the cabinet chassis ground bar.
Field Wiring Termination: Use shielded twisted-pair cables for low-level millivolt/thermocouple signals to prevent electromagnetic interference from adjacent high-voltage lines. Maintain proper wire strip length at terminal blocks.
Shield Grounding Protocol: Ensure the signal cable shield drain wire is grounded at a single point at the DCS cabinet ground rail. Do not ground shields at both ends to prevent circulating ground currents.
