Honeywell MU-TAMR02 51301376 Analog Input Card

This high-density analog input card captures process signals for Honeywell TDC 3000 distributed control systems. The Honeywell MU-TAMR02 51301376 accepts eight channels of 4-20 mA current signals from transmitters and field sensors. Its robust isolation design ensures measurement accuracy in demanding process environments with significant electrical noise.

Key Technical Specifications

Parameter	Details
Model	Honeywell MU-TAMR02 51301376
Product Type	Analog Input Card
Dimensions (W x H x D)	180 mm x 230 mm x 30 mm
Weight	0.68 kg
Number of Inputs	8 channels (individually isolated)
Input Signal Type	4-20 mA current (loop-powered transmitters)
Input Impedance	250 Ω ± 0.1 % per channel
Resolution	12 bits (0.1 % of full scale)
Accuracy	±0.15 % of span at 25 °C
Temperature Drift	±50 ppm/°C maximum
Isolation Voltage	1,500 V AC (channel-to-bus and channel-to-channel)
Scan Rate	100 ms for all eight channels (sequential)
Bus Interface	TDC 3000 backplane connector
Power Consumption	80 mA at 24 V DC (from backplane)
Operating Temperature	0 °C to +60 °C
Protection Class	IP20
Field Wiring	Removable screw terminal block (28–12 AWG)

Input Architecture and Signal Conditioning

The Honeywell MU-TAMR02 51301376 provides eight independent input channels that accept standard 4-20 mA from two-wire transmitters. Each channel features a precision 250 Ω resistor for accurate current-to-voltage conversion. The 12-bit resolution delivers dependable measurement granularity for process monitoring and control applications. Furthermore, a 100 ms scan rate ensures adequate update speeds for most industrial processes.

Channel Isolation and Noise Rejection

This analog input card offers 1,500 V AC isolation between each input channel and the system bus. Individual channel isolation eliminates ground loop errors common in large distributed installations. The module also incorporates filtering to remove high-frequency interference from variable speed drives and welding equipment. Additionally, the ±50 ppm/°C temperature drift maintains stable readings across varying ambient conditions.

Mechanical Design and Rack Integration

The Honeywell MU-TAMR02 51301376 fits standard TDC 3000 rack slots with its 180 mm width and 230 mm height dimensions. Its 0.68 kg weight ensures secure mounting within the chassis without additional bracing. A removable screw terminal block accepts 28 to 12 AWG field wiring, streamlining connections and future modifications. LED indicators on the faceplate display channel status and overall card health.

Power Consumption and Thermal Management

This analog input card draws 80 mA from the 24 V DC backplane supply during normal operation. Its 0 °C to 60 °C operating range accommodates typical control room and process area installations. An IP20 protection rating requires enclosure mounting but permits convenient front access for maintenance checks. The card dissipates heat efficiently through its metal housing without requiring forced airflow.

System Integration and Application Domains

The Honeywell MU-TAMR02 51301376 communicates with TDC 3000 controllers via the dedicated backplane bus. It integrates seamlessly with Honeywell Experion PKS and TotalPlant solutions for comprehensive process management. Consequently, this analog input card serves refining operations, chemical manufacturing, pulp and paper production, and food processing plants effectively.