Description
Product Description
Overview
The KJ3222X1-BA1 by Emerson is an 8-channel analog input card for 4-20mA HART signals, designed for the DeltaV™ Distributed Control System (DCS). It functions as a Vertical Plus I/O termination block, connecting field instrumentation to the system’s controllers. This module ensures accurate signal capture from sensors and transducers while maintaining full compliance with intrinsic safety standards for hazardous areas.
Key Features
Hazardous Area Certification: Certified for Zone 2 operation with approvals including II 3 G Ex nA [ic] IC Gc, II 3 G Ex nA [nL] IIC Gc, FM13ATEX0034U, and IECEx FMG 13.0015U.
High Signal Integrity: Designed to reduce electrical noise and maintain precise measurement of 4-20mA HART loops.
Hot-Swappable Modular Design: Supports removal or replacement without disturbing field wiring, minimizing system downtime.
Robust Industrial Performance: Operates reliably in extreme temperatures (-40°C to +70°C), vibration, shock, and exposure to airborne contaminants (ISA-S71.04 Class G3).
Efficient Terminal Density: Vertical Plus architecture maximizes connection density, saving cabinet space while supporting multiple I/O channels.
Technical Specifications
| Feature |
Specification |
| Module Type |
8-Channel Analog Input Card (4-20mA HART) |
| System Compatibility |
Emerson DeltaV M-Series / S-Series |
| Local Bus Power |
12 VDC at 150 mA |
| Bussed Field Power |
24 VDC at 300 mA |
| Field Input Rating |
24 VDC at 30 mA per channel |
| Operating Temperature |
-40°C to +70°C |
| Shock Resistance |
10 g, half-sine wave, 11 ms |
| Vibration Resistance |
1 mm peak-to-peak (2–13.2 Hz), 0.7 g (13.2–150 Hz) |
| Relative Humidity |
5%–95% non-condensing |
| Airborne Contaminants |
Class G3 (ISA-S71.04-1985) |
| Terminal Block Key |
A1 |
| Mounting |
2-wide or 8-wide I/O carrier compatible |
| Isolation |
Galvanic isolation between channels (dependent on module type) |
Applications
-
Monitoring and control of 4-20mA field devices in DeltaV DCS environments
-
Integration with process sensors and HART-enabled instrumentation
-
Hazardous area installations requiring Zone 2 certified components
-
High-density I/O cabinets where space efficiency is critical
FAQ
Q: Can the module be installed or removed while powered?
A: No. System and field power must be removed before insertion or removal. Follow safety instructions for hazardous areas.
Q: What types of field signals does it support?
A: Supports 4-20mA analog loops, HART communication, and energy-limited sensor inputs.
Q: How is misalignment prevented during installation?
A: A rotary keying system ensures the terminal block is correctly matched to the I/O card.
Q: Is it suitable for harsh industrial environments?
A: Yes, it withstands high vibration, extreme temperature ranges, and airborne contaminants.
Q: How does it compare to KJ3221X1-BA1?
A: KJ3222X1-BA1 adds HART support for field diagnostics and precise analog input processing, while maintaining the same Vertical Plus modular design
