Product Short Description
Product Introduction
16-channel high-density analog input card for DeltaV distributed control systems, optimized for large-scale multi-transmitter field signal acquisition. Captures 4–20 mA analog measurement signals with full HART bidirectional communication support, delivering maximum rack density for large process plant DCS installations.
Description
Technical & Electrical Specifications
- Module Supply Input: 24 V DC ±10% rack backplane power
- Field Circuit Rating Per Channel: Uo=28.7 V, Io=33 mA, Po=607 mW
- Total Independent Input Channels: 16 galvanically isolated channels
- Supported Field Signal: 4 mA ~ 20 mA 2-wire SMART transmitter loop signals
- HART Protocol Support: HART 5, HART 6, HART 7 bidirectional transparent transmission
- Intrinsic Safety Rating: Ex nA nL IIC T4 Gc for Division 2 hazardous zone cabinet installation
- Channel Fault Detection: Open wire, short circuit, over-range / under-range signal alarm
Mechanical & Material Specifications
- Mounting Format: DeltaV S-Series rack backplane slot plug-in module
- Housing Material: Black flame-retardant ABS industrial plastic
- Required Matching Accessory: Dedicated 16-channel terminal base assembly
Environmental Parameters
- Operating Temperature Band: -40 °C ~ +75 °C
- Storage Temperature Range: -55 °C ~ +85 °C
- Humidity Operation Limit: 5% ~ 95% RH, no condensation
Function Features
- 16 high-density isolated analog input channels maximizes rack signal acquisition capacity
- Full HART multi-drop communication compatibility for multi-transmitter field loops
- Hot-swappable hardware design for online maintenance without DCS system shutdown
- Per-channel independent fault diagnostic with dedicated backplane alarm reporting
- High-speed backplane digital bus with deterministic 100 ms maximum channel refresh rate
- Energy-limited Ex certified field circuits for hazardous industrial cabinet deployment
Working Principle
Sixteen individual isolated current sampling circuits convert field 4–20 mA analog signals to high-resolution digital measurement data. Integrated multi-channel HART modem extracts digital configuration and diagnostic data superimposed on analog current waveforms. Onboard module processor aggregates all channel data and transmits via high-speed DeltaV backplane serial bus to primary system controller for process control calculation and HART device data access.
Advantage Highlights
- 16-channel density reduces required rack quantity by 50% versus 8-channel equivalent input modules
- Multi-drop HART support reduces field cable count for multi-transmitter instrument loops
- Hot-swap design minimizes process downtime during I/O hardware maintenance
- Wide extreme temperature operating range suitable for outdoor remote process control cabinets
- Ex nA IIC T4 certification compatible with all Class I Division 2 hazardous industrial locations
- Per-channel independent isolation eliminates cross-channel measurement interference
Applicable Industries
Large-scale petrochemical complex control, natural gas transmission pipeline monitoring, coal-fired power plant DCS, municipal water/wastewater large treatment facilities, bulk pharmaceutical continuous manufacturing
Installation Requirements
- Insert module only into matching DeltaV S-Series I/O rack backplane expansion slots
- Install matching model dedicated 16-channel terminal base unit prior to module insertion
- Separate field instrument wiring and rack power wiring with physical cable barrier partitions
- Rack cooling airflow must maintain chassis internal temperature below 75 °C maximum
Usage Precautions
- Do not connect field devices exceeding maximum 33 mA channel current limit
- All field wiring within hazardous Division 2 cabinets must comply with Emerson Ex installation specifications
- Disconnect field terminal wiring before executing hot-swap module replacement
- Avoid rack placement adjacent to unshielded high-frequency motor drive power equipment
- Replace only with factory-original KJ3223X1-BA1 modules; third-party substitutes prohibited
- Perform semi-annual full channel HART communication diagnostic testing
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