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Manufacturer |
Emerson |
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Model Number |
KJ3221X1-BA1 |
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Part Number |
12P2531X062 |
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Product Type |
Analog Output HART Module |
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Series |
DeltaV Series 2 |

Contact us
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Sales Manager |
Miya zheng |
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Emerson KJ3221X1-BA1 12P2531X062 Overview
The Emerson KJ3221X1-BA1 12P2531X062 is a DeltaV Series 2 Analog Output (AO) HART module designed for high-performance process automation applications. It provides 8 independent analog output channels with 4–20 mA signal capability and integrated HART communication, allowing both analog control and digital device diagnostics through the same wiring. The module is engineered for critical industrial environments and supports redundant configurations for enhanced system availability.
Main Features
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² 8 isolated analog output channels |
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² 4–20 mA current output for precise process control |
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² Integrated HART communication support |
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² Series 2 DeltaV I/O module design |
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² Redundant-capable architecture for high system reliability |
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² Supports online device diagnostics and configuration |
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² Plug-and-play integration with Emerson DeltaV systems |
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² Suitable for controlling valves, actuators, and field instruments |
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² Compact and lightweight industrial design |
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² High accuracy signal transmission for critical processes |
Main Specifications
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Channels |
8 Analog Output Channels |
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Output Signal |
4–20 mA |
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Communication |
HART Protocol |
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Redundancy |
Supported |
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LocalBus Power |
12 VDC at 150 mA |
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Bussed Field Power |
24 VDC at 300 mA |
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Field Circuit Rating |
24 VDC at 23 mA |
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Dimensions |
5.1 × 10.2 × 10.2 cm |
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Weight |
Approximately 0.2 kg |
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Protection Rating |
IP20 |
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Operating Temperature |
-40°C to +70°C |
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Relative Humidity |
5–95% Non-Condensing |
Applications
The Emerson KJ3221X1-BA1 module is commonly used in:
² Oil and gas production facilities
² Petrochemical plants
² Power generation systems
² Water and wastewater treatment plants
² Chemical processing industries
² Distributed Control Systems (DCS)
² Process instrumentation and valve control applications
Its HART-enabled functionality allows maintenance teams to remotely access instrument diagnostics, reducing downtime and improving operational efficiency.
FQA
Q1: How many output channels does the KJ3221X1-BA1 provide?
It provides 8 independent analog output channels.
Q2: Does this module support HART communication?
Yes. It supports integrated HART communication for configuration, calibration, and device diagnostics.
Q3: What output signal range does the module use?
The module outputs standard industrial 4–20 mA analog signals.
Q4: Can the module be used in redundant systems?
Yes. The KJ3221X1-BA1 is designed as a redundant-capable Series 2 card for high-availability DeltaV applications.
Q5: Which Emerson control system is it compatible with?
It is designed for use within the Emerson DeltaV Distributed Control System (DCS) platform.
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