Emerson KJ3002X1-BF1

Product Name:​ Emerson KJ3002X1-BF1 DeltaV 8-channel 4-20 mA HART analog input module
Product Overview:​
Emerson KJ3002X1-BF1 is a DeltaV analog input module that acquires 4-20 mA process signals from transmitters, sensors and field instruments. It provides HART communication for device configuration and diagnostics, enabling accurate measurement, asset management and loop troubleshooting in process control systems.
Category:
Description
Technical Specifications:​
Part reference: 12P1732X072 according to common stock data
Channels: 8 analog inputs
Signal type: 4-20 mA, 2-wire transmitter support
HART: supported on channels according to DeltaV configuration
LocalBus power: 12 VDC at 150 mA
Bussed field power: 24 VDC at 300 mA
Field circuit rating: 24 VDC at 32 mA per channel
Operating temperature: -20 °C to +60 °C for module-related data; DeltaV M-series carrier environmental limits may extend to -40 °C to +70 °C according to installation
Humidity: 5% to 95% non-condensing
Protection: IP20
Weight: approximately 0.2 kg
Functional Features:​
High-resolution analog-to-digital conversion, open-circuit and out-of-range detection, HART device parameter access, channel diagnostics, hot replacement in supported carriers, and seamless integration with DeltaV control strategies.
Application Scenarios:​
Pressure measurement, temperature via transmitters, flow metering, level sensing, analytical instrumentation and any 4-20 mA loop requiring HART configuration in refining, chemicals, power, water, food and pharmaceutical plants.
Performance Parameters:​
Measurement accuracy and stability depend on input range, HART load, cable resistance, grounding and DeltaV card calibration. The module supports loop-powered transmitters and returns scaled engineering values to the controller database.
Material Composition:​
Industrial analog input PCB, precision resistors, instrumentation amplifiers, HART modem components, isolated power stage, conformally coated circuits and metal/plastic faceplate with screw or spring terminals through the mating terminal block.
Structural Characteristics:​
Plug-in I/O card for DeltaV carrier with keyed insertion. Field wiring terminates on the associated terminal block; the card connects to LocalBus for power and data. Front LEDs indicate power, fault and channel health where provided.
Working Principle:​
Each 4-20 mA input passes through signal conditioning and analog conversion. The HART modem superimposes digital communication on the current loop for device read/write functions. Converted values are transmitted over LocalBus to the controller, while diagnostics monitor open wires, overrange, shorts and communication errors.
Installation Requirements:​
Install the correct DeltaV terminal block and carrier for analog input. Use shielded twisted-pair cable for all 4-20 mA loops. Connect shield to the designated ground bus only, avoiding ground loops. Verify transmitter excitation, HART load and field power budget before startup. Strip conductors to the terminal manufacturer specification and torque all screws to rated value.
Usage Precautions:​
Confirm the terminal block keying matches the analog input card before insertion. Do not exceed 24 VDC field-circuit and 32 mA per-channel ratings. Separate analog from high-power or switching wiring to reduce noise. Perform HART address planning to avoid device conflicts. Replace only with the same 12P revision unless validated by DeltaV configuration tools.
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