Emerson KJ3002X1-BG2 Thermocouple mV Input Card

Description

The Emerson KJ3002X1-BG2 is a Thermocouple, mV Card developed for the DeltaV scalable process system. This interface component enables the direct conversion of low-level analog millivolt signals from temperature sensors and standard voltage sources into structured digital data for process automation loops. Operating on local bus infrastructures, the KJ3002X1-BG2 interfaces field temperature variables with central system controllers across diverse hazardous industrial plant architectures.

Features

• Integrates a dedicated rotary keying mechanical mechanism to guarantee hardware alignment between interface units and field terminal blocks.
• Features integrated diagnostic capability and electrical isolation design tailored for low-amplitude sensor signal routing.
• Contains internal electrical path tracing optimized for direct field thermocouple and millivolt sensor hookups without external conversion hardware.

Applications

• High-temperature process furnaces and process vessel monitoring.
• Thermal monitoring infrastructures in industrial processing environments.
• Continuous temperature multi-channel data acquisition within distributed control topologies.

Technical Specifications

Connections/Interfaces

Installation Guidelines

• Field Power Disconnection: All field power supplied to the device, either at the field terminal or as bussed field power through the carrier, must be completely removed before disconnecting or removing the unit.
• Energized Maintenance Conditions: This unit may be removed or inserted while system power is energized under the following conditions: Only one unit at a time may be removed with system power energized. It must be used with a KJ1501X1-BC1 System Dual DC/DC Power Supply operating on 24 VDC or 12 VDC input power.
• Inductance Limitations: The primary circuit wiring inductance for input power must be less than 23 uH, or a certified supply with an open circuit voltage, Ui of 12.6 VDC and an Lo of less than 23 uH (including wire inductance) must be utilized.
• Fuse Handling: A terminal block fuse may NOT be removed with field power energized for non-sparking circuits.
• Hardware Adjustments: This unit contains no user serviceable parts and should not be disassembled for any reason. Calibration is not required.

Compliance and Certifications

• ATEX Certification Number | Nemko No. 02ATEX431U |
• ATEX Code | II 3 G EEx nL IIC T4 |
• FM Approval | Class I Division 2 Groups A, B, C, D Hazardous Locations, Temperature Rating T4 |
• CSA Certification | LR87534 |
• CE Mark | Certified |