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EMERSON KJ2201X1-JA1 – HART Signal Isolation & Terminal Module
Product Overview
The KJ2201X1-JA1 is a HART signal isolation and terminal module developed by EMERSON, specifically designed for the DeltaV DCS. It solves the industry pain point of HART signal loss in traditional isolation modules, enabling bidirectional transparent transmission of 4-20mA analog signals and HART digital signals. The module connects field devices like sensors and transmitters to the control system, provides high-voltage isolation, and ensures stable operation in harsh industrial environments such as chemical, power, and petrochemical sectors.
Technical Specifications — KJ2201X1-JA1
| Parameter | Value |
|---|---|
| Product Model | KJ2201X1-JA1 |
| Manufacturer | EMERSON |
| Product Type | HART Signal Isolation & Terminal Module |
| Power | 24V DC; max 30V DC |
| Communication / Protocol | RS-485, HART protocol (supports bidirectional transparent transmission) |
| Operating Temperature | -40°C to +70°C |
| Mounting | Cabinet mounting, compatible with DeltaV system termination assemblies |
| Dimensions (HxWxD) | 120 x 80 x 100 mm |
| Weight | 0.35 kg (net weight) |
| Typical Interfaces | Terminal connections (A/B/C terminals), signal input/output ports |
| Compliance | CE, ROHS, explosion-proof certified for hazardous atmospheres |
EMERSON KJ2201X1-JA1
Key Features and Benefits — KJ2201X1-JA1
- Supports HART signal transparent transmission, preserving digital signals while transmitting analog signals, enabling remote diagnosis and calibration without interrupting production.
- Provides ≥2.5kVAC high isolation voltage, cutting off ground loops and preventing high-voltage intrusion and signal interference in industrial environments.
- Modular and compact design saves control cabinet space, with clear wiring labels for easy installation and maintenance.
- Compatible with mainstream industrial instruments, supporting 12 input and 12 output points, adaptable to various analog, digital, and pulse signal types.
- Industrial-grade construction with shock resistance (10g) and wide temperature range, ensuring long-term reliability in harsh working conditions.
Related Models
- KJ2201X1-BA1: EMERSON DeltaV terminal module, similar to KJ2201X1-JA1 with enhanced redundancy for critical power circuits.
- KJ2201X1-HA1: EMERSON signal isolation module, optimized for high-temperature industrial applications.
- KJ2221X1-BA1: EMERSON DeltaV controller module, compatible with KJ2201X1-JA1 for integrated control systems.
- KJ2201X1-CA1: EMERSON terminal module with improved surge protection, suitable for high-voltage industrial scenarios.
Installation and Maintenance — KJ2201X1-JA1
- Installation: Mount in control cabinets, connect to DeltaV system termination assemblies, and ensure wiring complies with industrial signal transmission standards.
- Maintenance: Regularly check terminal connections and signal transmission status; use system software for remote diagnosis without interrupting production.
- Compatibility: Seamlessly integrates with EMERSON DeltaV DCS, compatible with various smart instruments and controllers from Emerson, Endress+Hauser, and Yokogawa.
