Description
Honeywell FC-TSHART-1620M
Technical Specifications
- Product Type: HART safety analog input field termination assembly
- Channel Count: 16 analog input channels
- Supported Signal: 4-20mA HART two-wire transmitter signal
- Built-in Components: 250Ω precision conversion resistors, per-channel fuses, surge suppression devices, HART signal coupling circuit
- Terminal Type: Screw terminal block
- Cable Interface: SIC ribbon cable connector
- Protection Rating: IP20
- Operating Temperature: -10 °C to +60 °C
- Mounting Method: DIN rail mounting
Functional Features
- 16-channel termination assembly for 4-20mA HART field transmitters.
- Built-in precision 250Ω resistors convert current signal to voltage signal for safety module.
- HART signal coupling circuit retains HART digital communication on analog loop.
- Per-channel fuse protection prevents fault current damaging rack safety analog module.
- Built-in surge suppression absorbs electrical transient interference on field cables.
- SIC ribbon cable interface connects assembly to FC-SAI-1620M safety analog input module.
- Front panel LED indicators display channel power and fault status.
- Galvanic isolation separates field transmitter circuit and safety module circuit.
- Screw terminal block provides stable wiring connection for two-wire transmitters.
- Supports HART handheld communicator connection for transmitter calibration and health diagnosis.
Application Scenarios
- Safety Manager SIS HART transmitter signal marshalling cabinet
- Petrochemical plant ESD HART pressure and temperature transmitter termination
- Offshore platform fire and gas HART detector signal junction assembly
- Refinery HIPPS HART level and flow transmitter wiring termination
- Chemical plant reactor safety HART instrument signal marshalling unit
Material Composition
- Housing: Flame-retardant polycarbonate plastic casing
- Terminal block: Tin-plated copper alloy screw terminals
- PCB: FR4 printed circuit board with conformal coating
- Precision components: High stability 250Ω metal film resistors
- Protection components: Channel fuses and surge suppression devices
- HART coupling components: Signal coupling capacitors
- Cable connector: Gold-plated copper contact pins for SIC ribbon cable
- Mounting bracket: Steel DIN rail clip
Structural Characteristics
- Compact horizontal DIN rail mounting structure.
- Front screw terminals for two-wire HART transmitter wiring.
- Rear SIC ribbon cable connector links to FC-SAI-1620M safety analog input module.
- Each channel integrates independent precision resistor, fuse and surge suppression circuit.
- Internal HART coupling circuit retains digital signal superimposed on analog current loop.
- Internal isolation barrier separates field transmitter circuit and safety module circuit.
- Front panel LED indicators for visual channel status inspection.
Working Principle Two-wire HART transmitters connect to FC-TSHART-1620M screw terminals. 4-20mA analog current flows through built-in 250Ω precision resistor and converts to voltage signal for safety analog input module. HART digital signal superimposed on current loop passes through coupling circuit. HART communicator can access transmitter parameters via loop terminals. Fuse protects circuit under overcurrent fault. Surge suppression devices absorb transient voltage on field cables. Analog measurement and HART diagnostic information transmit to safety module through SIC ribbon cable.
Installation Requirements
- Mount FC-TSHART-1620M assembly on standard 35mm DIN rail inside control cabinet.
- Use HART certified shielded twisted pair cable for field transmitter wiring.
- Tighten terminal screws to specified torque value.
- Connect SIC ribbon cable to corresponding FC-SAI-1620M module correctly.
- Separate analog HART signal cables from high power cables in cable tray.
- Complete protective earth connection for assembly housing.
- Perform loop calibration and HART communication test after wiring completion.
Usage Notes
- Cut off field loop power before replacing channel fuses.
- Replace fuses with same rated specification only.
- Keep cabinet dry and free of corrosive gas and conductive dust.
- Check terminal tightness periodically under vibration environment.
- Do not modify precision 250Ω resistors or HART coupling circuit.
- Disconnect SIC ribbon cable before high voltage insulation resistance test.
- Use HART communicator in non-hazardous zone or with approved intrinsic safety barrier.
- Replace assembly immediately when permanent circuit damage occurs.
