Foxboro FBM12

Technical Specifications:

• Input Type: 4–20 mA analog current
• Resolution: 0.005 mA
• Input Withstand Voltage: 100 VDC
• Linearity: ±0.05% full scale
• Zero Point Stability: ±0.1% full scale per year
• Temperature Coefficient: Max ±0.01% full scale per °C
• Load Impedance: ≤50 Ω
• Supply Voltage: 9–32 VDC
• Power Effect: Max ±0.05% full scale
• Operating Temperature: -40°C to +70°C
• Protection Rating: IP20
• Communication Protocol: HART
• Dimensions: 45 mm × 101 mm × 123 mm (W×H×D)
• Weight: ~0.3 kg Functional Features:
• High-speed data acquisition with fast signal scanning
• High precision and long-term stability for continuous monitoring
• Built-in HART communication for smart transmitter interaction
• Compact design for space-limited field installation
• Wide power supply voltage range for field flexibility Application Scenarios:
• Temperature, pressure, flow and level monitoring in process industries
• Pharmaceutical production monitoring and GMP-compliant control systems
• Petrochemical fractionation tower and reactor parameter measurement
• Food processing sterilization and dairy production control
• Lithium battery material sintering furnace temperature control Structural Features:
• Compact rectangular housing for DIN rail mounting
• Integrated terminal block for direct field wiring
• Low-power design for distributed field applications Operating Principle: The module receives 4–20 mA current signals from field transmitters, performs high-precision A/D conversion via internal conditioning circuits, and transmits digitized process data to the control system via HART or fieldbus. It also supports bidirectional communication with smart instruments for configuration and diagnosis. Installation Requirements:
• Mount on standard DIN rail inside field junction box or cabinet
• Verify input wiring polarity to avoid signal reversal
• Use shielded twisted-pair cables for signal transmission
• Maintain ambient temperature within -40°C to +70°C Usage Notes:
• Do not exceed maximum input voltage rating
• Calibrate periodically to maintain measurement accuracy
• Protect from moisture and corrosive atmospheres