12P1731X062 Emerson DeltaV 8-Channel Analog Input Card KJ3002X1-BG2

Product Overview

The Emerson KJ3002X1-BG2 (Part Number 12P1731X062) is a precision 8-channel Analog Input module engineered for the DeltaV™ M-series I/O Subsystem. This module is specifically designed to interface with millivolt-level signals and thermocouple temperature sensors, providing the high-resolution data acquisition required for complex thermal process control. By converting low-level analog voltages into digital values for the Distributed Control System (DCS), the KJ3002X1-BG2 ensures accurate monitoring of critical temperature variables across a wide industrial spectrum.

Operating as a core component of the M-series hardware, this module facilitates seamless integration of temperature sensing without the need for external signal conditioners or transmitters. It features advanced cold-junction compensation and signal linearization, ensuring that temperature readings remain accurate despite fluctuations in the ambient environment of the control cabinet.

Technical Characteristics and Strategic Capabilities

The KJ3002X1-BG2 is defined by its architectural flexibility and its ability to maintain signal integrity in electrically noisy industrial settings.

• 8-Channel High-Resolution Acquisition: Supports eight independent channels of thermocouple or millivolt (mV) inputs, optimizing rack space and reducing the cost per point.

• Integrated Cold-Junction Compensation: Features high-precision onboard sensors to compensate for the reference junction, maintaining measurement accuracy across the module's full operating range.

• Redundancy Support: Fully compatible with redundant I/O carriers. When deployed in a redundant pair, the system ensures "bumpless" switchover if a hardware fault occurs, maintaining continuous process visibility.

• Galvanic Isolation: Provides robust electrical isolation between the field-side sensors and the system backplane, protecting the controller from ground loops and transients.

• Hot-Swappable Architecture: Allows for the replacement of the module under system power (RIUP), enabling maintenance activities without interrupting the communication bus or adjacent I/O cards.

• Industrial Hardening: Designed to meet ISA-S71.04 Class G3 standards, providing reliable operation in corrosive environments where airborne contaminants may be present.

  
  

Technical Specifications

• Manufacturer: Emerson (Fisher-Rosemount)

• Model Designation: KJ3002X1-BG2

• Order Reference: 12P1731X062

• Module Type: Analog Input (Thermocouple / mV)

• Channel Density: 8 Channels

• System Platform: DeltaV™ M-series I/O

• Mounting: Carrier-based (Localbus interface)

• Dimensions: 4.3 x 12.5 x 10.5 cm

• Unit Weight: 0.2 kg

• Country of Origin: USA

Industrial Applications

The Emerson 12P1731X062 Analog Input card is essential for high-precision thermal management in several key sectors:

• Petrochemical Refining: Monitoring reactor bed temperatures and distillation column thermal profiles.

• Power Generation: Tracking boiler tube temperatures and turbine exhaust gas profiles.

• Chemical Manufacturing: Managing exothermic reaction temperatures where precise control is critical for safety and yield.

• Metal Processing: Supervising furnace temperatures and heat treatment cycles.