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Honeywell 51305907-175
Product Name: MC-TAMR04 Low-Level Analog Input Multiplexer
Product Introduction: The Honeywell 51305907-175 (MC-TAMR04) is a UCN low-level analog input multiplexer (LLMUX) for Honeywell TDC 3000 and Experion PKS distributed control systems. It is designed for high-precision acquisition of low-level temperature signals and provides reliable performance in demanding industrial process environments.
Detailed content
Technical Specifications:
- Part Number: 51305907-175 (Model MC-TAMR04)
- Input Channels: 64 fully isolated channels, expandable in 16-channel increments
- Input Types: Thermocouple (TC) and RTD
- Input Range (TC): -20 to +100 mV nominal
- Maximum Input (TC): -10 to +10 V; (RTD): -1 to +2 V @ 100 mA
- Channel Bandwidth: 0 to 4.7 Hz (-3 dB)
- Input Scan Rate: Fixed 1-second scan by IOM (up to 64 channels/second)
- Gain Error: 0.050% of full scale (maximum)
- Input Impedance: 1 MΩ at DC (TC only)
- Long-Term Drift: 500 ppm
- Isolation: Channel-to-channel, channel-to-processor, and channel-to-power-supply
- Operating Temperature: -20°C to +60°C
- Storage Temperature: -40°C to +85°C
- Dimensions: 30.5 cm x 11.9 cm x 7 cm
- Weight: 0.7 kg
- Origin: USA
Functional Features: High channel density supporting up to 64 fully isolated input networks; flexible thermocouple and RTD input support; minimal acquisition error for low-level analog input; industrial-grade rugged design for long-term reliable operation; compact module form factor.
Application Scenarios: Process and manufacturing industries; oil and gas; chemical processing; power generation; water and wastewater treatment; building automation.
Structural Characteristics: A board-type module with 64 channels configured in 16-channel increments, utilizing solid-state switching. It uses the Honeywell PMIO LLMUX FTA for field termination—one FTA type provides 16 RTD inputs and another provides 16 TC or mV inputs.
Working Principle: Collects temperature variables from all points at a 1-second rate. The 1-second update includes a configurable check for Open Thermocouple Detection (OTD) before propagation of the temperature variable.
Installation Requirements: Must be installed in a compatible TDC 3000 or Experion PKS Universal Control Network (UCN) rack. FTAs must be correctly selected and matched based on the required mix of TC, mV, or RTD points.
Usage Precautions: Ensure proper seating into the backplane connector to avoid signal interruption. Shielded cabling is recommended for modem signal paths with grounding at a single point to avoid ground loops. Route communication lines separately from high-voltage conductors to prevent interference. Verify mechanical retention clips are engaged to prevent vibration-induced loosening.
