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The Emerson KJ2004X1-BA1 Intelligent Field Transmitter is a high-performance solution designed for industries requiring accurate and reliable measurement of process variables. Part of the Emerson Rosemount™ series, this transmitter delivers exceptional performance in critical applications where precision and system integration are essential. Designed to support differential pressure, temperature, and flow measurement, the KJ2004X1-BA1 is ideal for complex industrial environments like chemical processing, oil & gas, power generation, and water treatment. With seamless integration capabilities with control systems like Emerson DeltaV™ and advanced diagnostics, it ensures optimal performance, improved safety, and reduced downtime.

Technical Specifications

Specification	Details
Model	Emerson KJ2004X1-BA1
Module Type	Intelligent Field Transmitter
Measurement Range	0.01 to 5000 m³/h (Flow) or 0-10000 psi (Pressure)
Input Type	Differential Pressure, Temperature, or Flow Inputs
Communication Protocol	HART®, FOUNDATION™ fieldbus, Profibus PA
Output Signal	4–20 mA, Digital (HART)
Accuracy	±0.05% of Span
Temperature Range	-40°C to 85°C (-40°F to 185°F)
Power Supply	12–42 VDC
Dimensions	7.8" x 6.3" x 5.5" (198 mm x 160 mm x 140 mm)
Weight	3.5 lbs (1.59 kg)
Housing Material	Stainless Steel
Ingress Protection	IP66/IP67

Recommended Related Models

If you are looking for additional features or more advanced capabilities, consider these related Emerson models:

Emerson KJ2003X1-BA2 – Suitable for users needing dual-input capabilities and enhanced diagnostics for complex systems.
Emerson Rosemount 3051S – A multi-variable transmitter ideal for applications requiring precision and diagnostics across flow, pressure, and temperature.
Emerson Rosemount 3088 – A cost-effective flow measurement solution for basic applications in oil & gas, chemical processing, and general industrial use.

Popular Emerson Models

Emerson offers a wide range of highly regarded field transmitters for industrial process control. Some of the most popular models include:

Emerson Rosemount 3051 – A widely used transmitter for pressure, flow, and level measurements, known for its reliability and versatility.
Emerson Rosemount 2088 – A compact and cost-effective solution for basic flow and pressure measurement applications.
Emerson 1151 – Ideal for pressure, temperature, and level measurement, offering ease of installation and high reliability in industrial environments.

Applications

The Emerson KJ2004X1-BA1 is specifically designed for precise and reliable measurements in a variety of industries:

Oil & Gas: For flow, pressure, and temperature measurement in pipelines, production facilities, and drilling operations, ensuring safe and efficient operations.
Chemical Processing: Provides reliable flow and pressure data to optimize chemical production, maintain safe operating conditions, and meet regulatory standards.
Power Generation: Used to measure flow rates in cooling systems, fuel supply lines, and turbines, ensuring optimal plant performance and energy efficiency.
Water & Wastewater Treatment: Measures flow and pressure to ensure water treatment processes are operating efficiently, maintaining water quality, and meeting environmental standards.
Food & Beverage: Used in production lines to monitor liquid flow, ingredient addition, and pressure in food and beverage manufacturing, ensuring product consistency and quality.

Advantages

Unmatched Accuracy: The KJ2004X1-BA1 provides a high level of accuracy (±0.05% of span), ensuring precise measurement of flow, pressure, and temperature in critical processes.
Advanced Diagnostics: Built with Smart Diagnostics technology, this transmitter can predict potential failures, allowing for proactive maintenance and reducing system downtime.
Versatile Input Compatibility: The KJ2004X1-BA1 can accept multiple sensor types, including differential pressure, temperature, and flow sensors, offering flexibility in complex measurement setups.
Robust and Durable Design: The transmitter is housed in a stainless-steel enclosure and has an IP66/IP67 ingress protection rating, ensuring its durability in harsh industrial environments.
Wide Power Supply Range: With a power supply range of 12–42 VDC, the KJ2004X1-BA1 is compatible with various industrial control systems, providing greater installation flexibility.

Technical FAQs

What is the flow measurement range of the KJ2004X1-BA1?
The KJ2004X1-BA1 offers a flow measurement range from 0.01 to 5000 m³/h, making it suitable for both low-flow and high-flow applications.
What input types are supported by the KJ2004X1-BA1?
This transmitter supports differential pressure, temperature, and flow inputs, allowing it to be used in a variety of process control applications.
What communication protocols are supported by the KJ2004X1-BA1?
The KJ2004X1-BA1 is compatible with HART®, FOUNDATION™ fieldbus, and Profibus PA communication protocols, offering flexibility in integration with different control systems.
What is the accuracy of the KJ2004X1-BA1?
The KJ2004X1-BA1 provides an accuracy of ±0.05% of span, ensuring highly accurate measurements for critical process control applications.
What is the operating temperature range of the KJ2004X1-BA1?
This transmitter can operate in environments ranging from -40°C to 85°C (-40°F to 185°F), making it suitable for a wide range of industrial conditions.
What power supply is required for the KJ2004X1-BA1?
The KJ2004X1-BA1 requires a power supply within the range of 12–42 VDC, ensuring compatibility with a wide range of industrial systems.
Is the KJ2004X1-BA1 suitable for use in hazardous environments?
Yes, it features an IP66/IP67 ingress protection rating, making it ideal for use in hazardous environments exposed to dust, moisture, and harsh chemicals.
Can the KJ2004X1-BA1 measure very high pressures?
Yes, the KJ2004X1-BA1 is capable of measuring pressures up to 10,000 psi, making it suitable for high-pressure industrial applications like oil & gas production.
How is the KJ2004X1-BA1 mounted?
The transmitter can be mounted using standard pipe-mounting or panel-mounting techniques, providing flexibility for different installation needs.
What industries benefit the most from the KJ2004X1-BA1?
The KJ2004X1-BA1 is ideal for industries such as oil & gas, chemical processing, power generation, water treatment, and food & beverage, where accurate flow, pressure, and temperature measurements are essential.