The FOXBORO FBM214b RH927AH is a HART-enabled analog input module built for demanding industrial environments. It offers eight individually isolated analog channels, each capable of handling both standard 4–20 mA signals and HART digital communication. Designed for precision and reliability, it suits applications requiring real-time diagnostics, configuration, and accurate process data acquisition.

Technical Specifications

Channel Configuration

• Channels: 8 isolated analog input channels
• Each channel operates independently for enhanced signal integrity

Supported Signals

• Analog: Standard 4–20 mA loop current
• Digital: HART FSK signal superimposed on the 4–20 mA loop

Communication

• Modems: One FSK modem per input channel
• Enables bi-directional HART communication for device status and setup

Analog Conversion

• Type: Sigma-delta ADC
• Resolution: 15-bit for precise measurements
• Accuracy: ±0.03% to ±0.05% of full scale
• Update Rate: 100 ms per channel
• Integration Time: 500 ms to reduce signal noise
• Sense Resistor: 61.5 Ω nominal

Power and Isolation

• Power Supply:
  • Individually isolated power per channel
  • Option for external loop power
• Isolation: Full galvanic isolation per channel for safety and noise immunity

Environmental and Mechanical

• Rating: Class G3 (for harsh environments)
• Dimensions: 2.2 cm x 12.4 cm x 12.6 cm
• Weight: 0.3 kg