Emerson KJ3002X1-BG2 DeltaV 8-Point Thermocouple / Millivolt Analog Input Module

Product Overview

The Emerson KJ3002X1-BG2 operates as a high-density, 8-channel analog input module within the DeltaV distributed control system (DCS) platform. This specialized microelectronic component acts as a direct interface for temperature measurement sensors, accepting millivolt (mV) signals and low-voltage inputs directly from eight independent field thermocouples. The module translates tiny, microvolt-level physical temperature changes into filtered, digital temperature variables. This real-time processing provides the central DeltaV controller with the rapid temperature tracking data necessary to regulate industrial furnaces, reactors, boilers, and cryogenic systems. We guarantee this 8-point analog input module arrives in 100% brand new, original factory-sealed condition.

Technical Specifications

Engineering Advantages

• Elimination of Intermediate Temperature Transmitters: This module accepts low-voltage thermocouple signals directly into the backplane, completely omitting the need for external 4-20mA field transmitters. Plant engineers save thousands of dollars per cabinet by removing intermediate wiring points, power distribution blocks, and external conversion hardware.

• Cold Junction Compensation (CJC) Error Prevention: The hardware architecture pairs with terminal blocks that integrate precise ambient temperature measurement reference chips. This structure constantly calculates and cancels out ambient temperature drift at the termination point, preventing measurement inaccuracies when outdoor marshaling panels face rapid weather shifts.

• Advanced Rejection of High-Frequency Electromagnetic Noise: Industrial furnaces generate massive electromagnetic fields from adjacent high-voltage induction heaters and power lines. This module incorporates internal low-pass filters and high common-mode rejection circuitry on every single channel, neutralizing induced AC hum and keeping temperature readouts stable.

• Low-Mass Shock Resistance for Local Control Rooms: Weighing only 0.62 lbs, this lightweight card features rigid backplane stabilization clips. This mechanical layout protects the internal multi-layer printed circuit board from the continuous background harmonic vibrations and physical shocks caused by heavy industrial turbo-machinery, keeping contact pin resistance near zero.

FAQs

• Does this KJ3002X1-BG2 analog module arrive inside its original packaging?

  Yes. We supply this product strictly as a 100% brand new, factory-original component. The card remains completely sealed inside its original Emerson anti-static barrier pouch within the manufacturer box, preserving all official tracking serial numbers, factory barcodes, and quality inspector seals.

• Which thermocouple types can I connect to this module?

  The underlying DeltaV software engine allows you to configure individual channels independently. The module processes standard industrial sensor variations, including Type J, K, T, E, R, S, and B thermocouples, alongside raw low-voltage millivolt signals, directly from the system software configuration panel.

• Can I safely plug or pull this card while the DeltaV carrier is powered?

  Yes. This module fully supports Removal and Insertion Under Power (RIUP). Maintenance personnel can hot-swap a damaged or aging card with this brand new unit without turning off the system backplane or interrupting data flow on neighboring communication cards.

• How should I configure the cabling to prevent signal interference?

  Always use proper thermocouple extension wire matched precisely to your sensor type (e.g., KX wire for Type K thermocouples). Run these signals inside dedicated, grounded low-voltage wire ducts completely separate from 480V AC motor lines to block high-voltage cross-talk from distorting your process values.