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Product Introduction
The Emerson KJ4001X1-CG1 Thermocouple Terminal Block is an industrial-grade component designed specifically for high-accuracy temperature signal transmission in DeltaV™ automation systems. It serves as the direct termination point for thermocouple field wiring and interfaces with corresponding I/O modules to deliver precise temperature data to the control system. The KJ4001X1-CG1 is equipped with cold junction compensation (CJC) circuitry, ensuring signal integrity and accuracy in demanding process environments. Its design complies with the rigorous standards required in critical industries such as oil & gas, chemical, and power generation.
This terminal block is engineered for high-performance thermocouple input applications, integrating seamlessly into the Emerson DeltaV ecosystem. It supports various thermocouple types (J, K, T, E, N, R, S, B) and ensures accurate analog signal conversion, with minimized noise and electromagnetic interference (EMI).
Product Parameters
The table below outlines the detailed specifications of Emerson KJ4001X1-CG1:
| Specification | Details |
|---|---|
| Model Number | KJ4001X1-CG1 |
| Product Type | Thermocouple Terminal Block |
| System Compatibility | Emerson DeltaV DCS |
| Supported Thermocouple Types | J, K, T, E, N, R, S, B |
| Channels per Block | 16 |
| Cold Junction Compensation | Integrated (per terminal pair) |
| Operating Temperature | -40°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Relative Humidity | 5% to 95% non-condensing |
| Isolation | Galvanic isolation per channel |
| Mounting Type | DIN rail or panel mount |
| Material Construction | High-strength thermoplastic with nickel-plated terminals |
| Dimensions (L x W x H) | 150 x 120 x 45 mm |
| Weight | 0.7 kg |
| Connection Method | Screw-type terminals |
| Certifications | CE, UL, CSA, ATEX, IECEx |
Product Applications
The Emerson KJ4001X1-CG1 Thermocouple Terminal Block is widely used in process control environments where temperature monitoring is critical. Key application sectors include:
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Oil & Gas Facilities: Temperature monitoring of furnaces, heat exchangers, and flaring systems with precision and safety.
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Power Generation Plants: Real-time sensing of turbine, boiler, and heat recovery system temperatures.
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Chemical and Petrochemical Processing: Accurate thermocouple inputs for reactor and pipeline temperature control.
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Pharmaceutical Manufacturing: Tight process temperature regulation in batch reactors and clean rooms.
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Food and Beverage Industry: Thermal profiling of pasteurization and sterilization processes.
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Steel and Metal Processing: High-temperature sensing in furnaces and heat treatment lines.
Product Advantages
The KJ4001X1-CG1 terminal block offers significant advantages that make it an ideal choice for mission-critical temperature sensing:
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High Accuracy: With built-in cold junction compensation and support for multiple thermocouple types, it ensures reliable and precise readings.
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Multi-channel Support: Accommodates up to 16 channels per block, reducing panel space and wiring complexity.
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DeltaV Integration: Seamless plug-and-play connectivity with Emerson’s DeltaV I/O modules and control processors.
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Durability: Designed for extended service life even under aggressive industrial conditions, with wide operating temperature range.
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Electromagnetic Noise Protection: Excellent EMI shielding through robust construction and channel isolation.
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Easy Maintenance: Clear terminal marking and screw-type connections simplify installation and replacement.
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Certified Safety: Complies with global standards for safety and hazardous area usage.
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Modular Design: Facilitates future expansion or retrofitting in existing cabinets without major rewiring.
Frequently Asked Questions (FAQ)
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What is the purpose of the KJ4001X1-CG1 terminal block?
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It provides direct termination for thermocouple wiring and connects to DeltaV input modules.
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Does it include cold junction compensation (CJC)?
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Yes, it features integrated CJC for each thermocouple input pair to ensure signal accuracy.
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Which thermocouple types does it support?
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It supports a wide range: Type J, K, T, E, N, R, S, and B.
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Can this block be used in hazardous areas?
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Yes, it is certified for ATEX, IECEx, and other hazardous location standards.
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What mounting options are available?
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It can be mounted on a DIN rail or flat panel, depending on your cabinet setup.
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How many channels does it provide?
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It supports up to 16 thermocouple input channels per terminal block.
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Is it compatible with analog input modules directly?
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Yes, it is designed to work with thermocouple input modules in the Emerson DeltaV system.
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What is the maximum ambient temperature it can operate in?
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It operates reliably in temperatures up to +70°C.
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Can the terminals be accessed without removing the entire block?
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Yes, terminals are accessible individually for efficient field wiring and troubleshooting.
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How is it different from a standard terminal block?
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It includes CJC, supports specific thermocouple signal conditioning, and is purpose-built for temperature inputs in control systems.
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Related or Similar Models (Same Series)
| Model Number | Description | Type | Channels | Dimensions (mm) | Weight |
|---|---|---|---|---|---|
| KJ4001X1-CH1 | RTD Terminal Block | RTD Terminal Block | 16 | 150 x 120 x 45 | 0.7 kg |
| KJ4001X1-CA1 | Analog Input Terminal Block | Analog Terminal Block | 16 | 150 x 120 x 45 | 0.6 kg |
| KJ4001X1-CB1 | Analog Output Terminal Block | Analog Output Terminal Block | 16 | 150 x 120 x 45 | 0.6 kg |
| KJ4001X1-CC1 | Discrete Input Terminal Block | Digital Input | 16 | 150 x 120 x 45 | 0.6 kg |
| KJ4001X1-CD1 | Discrete Output Terminal Block | Digital Output | 16 | 150 x 120 x 45 | 0.6 kg |
| KJ4001X1-CF1 | HART Multiplexer Terminal Block | HART-enabled Analog Block | 16 | 150 x 120 x 45 | 0.7 kg |
Popular Emerson Models (Same Brand)
| Model Number | Description | Category | Key Features | Weight |
|---|---|---|---|---|
| KJ3001X1-BB1 | DeltaV Controller Module | Controller | High-speed processing, redundancy | 1.7 kg |
| KJ3221X1-BA1 | 4-20 mA HART Analog Input Module | Analog Input Module | HART-enabled, high resolution | 1.3 kg |
| KJ3002X1-BG2 | Redundant Power Supply Controller | Power Management | Power failover support | 1.6 kg |
| KJ3204X1-BA1 | 4-Channel Analog Output Module | Analog Output Module | Isolated output, diagnostics | 1.2 kg |
| KJ4001X1-BA2 | 4-Wide I/O Carrier | I/O Backplane | Compact, easy install | 1.2 kg |
| KJ4010X1-BF1 | HART Interface Module | Communication Interface | HART pass-through and config | 1.4 kg |
