Product Short Description
Product Name: 16-Channel 2-Wire HART Analog Input Terminal Block, Series 2 Plus
Product Introduction: High-density analog input termination unit matched with DeltaV 16-channel 4–20mA analog input card. Designed for 2-wire HART transmitters, used to terminate field analog signals and connect to DeltaV I/O carrier.
Description
- Channel Quantity: 16 independent analog input channels
- Supported Signal: 4–20mA DC, 2-wire transmitter, HART 5 / HART 7 protocol compatible
- Transmitter Supply Voltage: Minimum 13.5 VDC @ 20mA
- Over-range Detection Range: 2–22mA
- Isolation: Channel-to-bus optical isolation, 1000 VDC withstand voltage
- Power Consumption: Simplex 85mA typical, 150mA maximum; Redundant 110mA typical, 200mA maximum
- Operating Temperature: -40°C ~ +70°C
- Storage Temperature: -40°C ~ +85°C
- Relative Humidity: 5% ~ 95%, non-condensing
- Protection Class: IP20
Function Features
- Built-in HART signal modulation and demodulation circuit
- Channel open-circuit, short-circuit fault diagnosis
- Hot-swappable supporting online replacement without system shutdown
- Keyed mechanical anti-misplug design to prevent mismatched I/O cards
- Conformal coating against corrosive industrial atmosphere, compliant with ISA-S71.04 Class G3
Working Principle: Receive continuous analog current signals from field transmitters, filter interference signals, transmit conditioned signals to paired analog input card; realize bidirectional HART digital signal transmission for smart instrument parameter configuration.
Material & Structure
- Housing Material: Flame-retardant reinforced engineering plastic
- Internal Circuit Board: FR4 printed circuit board with conformal coating
- Structure: Integrated rectangular module, front panel status indicator LED, rear interlocking connector for I/O carrier
Installation Requirements
- Mount vertically on DeltaV standard I/O carrier
- Maintain 20mm minimum ventilation gap between adjacent modules
- Field wiring uses screw terminal connections, torque 0.8–1.2 N·m
- Ground shielding wire connected to cabinet protective ground point
Application Scenarios: Oil & gas plant, chemical processing, power generation, water treatment, pharmaceutical manufacturing; collecting pressure, temperature, flow, liquid level analog signals.
Usage Notes
- Static sensitive device, anti-static wrist strap required during handling
- Do not disassemble the module housing; no user-serviceable internal components
- Avoid wiring live field circuits during module hot swap
- Regularly inspect terminal screw tightening status to prevent loose contact
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