1. Product Overview
Name: 5B47-K04 Thermocouple Input Module
Model: 5B47-K04
Series: 5B Series Signal Conditioning Modules
Article Number: 5B47-K04
Manufacturer: (Typically produced by Analog Devices or compatible 5B module manufacturers; part of the 5B signal conditioning family widely used in industrial and laboratory measurement systems.)

The 5B47-K04 is a precision thermocouple input module designed for direct connection to Type K thermocouples. It provides a linearized, isolated, and amplified analog output signal proportional to temperature, specifically scaled for a measurement range of 0°C to +1000°C input and a corresponding 0–5 V output. This module belongs to the 5B Series, a family of compact, plug-in signal conditioning modules used for data acquisition, process control, and instrumentation applications.

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2. Key Features
- Thermocouple Input Type: Type K (Chromel–Alumel)
- Input Range: 0°C to +1000°C
- Output Range: 0 to +5 V DC, linearized with respect to temperature
- Linearization: Internal cold-junction compensation and linearization circuitry for accurate temperature-to-voltage conversion
- Galvanic Isolation: Provides 1500 V RMS isolation between input, output, and power, ensuring signal integrity and protection from ground loops
- High Accuracy: Factory-calibrated for precise temperature measurement and voltage output scaling
- Low Drift: Stable operation over wide temperature ranges, minimizing measurement error due to ambient variations
- Compact Form Factor: Standard 5B module size for use in 5B backplanes and mounting racks
- Plug-and-Play Integration: Compatible with 5B Series backplanes, data acquisition systems, and analog input modules
- High Common-Mode Rejection: Designed to reject electrical noise and interference in industrial environments
- Cold Junction Compensation (CJC): Built-in sensor compensates for reference junction temperature variations
- Overvoltage Protection: Input protection against transient voltages and wiring errors
- Wide Power Supply Range: Operates from standard 5B system power (±5 V or ±15 V depending on configuration)

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3. Technical Specifications
- Input Type: Thermocouple, Type K (Chromel–Alumel)
- Input Range: 0°C to +1000°C
- Output Signal: 0 to +5 V DC, linearized
- Accuracy: Typically ±0.1% of full scale or better (depending on calibration and ambient conditions)
- Resolution: Better than 0.02% of full scale
- Input Impedance: >10 MΩ
- Output Impedance: <1 Ω
- Isolation Voltage: 1500 V RMS continuous isolation between input, output, and power
- Bandwidth: DC to approximately 3 Hz (optimized for temperature measurement stability)
- Response Time: Typically 100 ms to 90% of final value
- Common Mode Rejection Ratio (CMRR): >120 dB at 50/60 Hz
- Power Requirements: +5 V DC nominal (from 5B backplane), typical current consumption 30–50 mA
- Operating Temperature Range: –40°C to +85°C
- Storage Temperature Range: –55°C to +125°C
- Relative Humidity: 0–95%, non-condensing
- Dimensions: Approx. 60 mm (L) × 52 mm (W) × 12.5 mm (H) (standard 5B module size)
- Weight: Approximately 25–35 g
- Material: Molded thermoplastic housing, flame-retardant, UL94V-0 rated
- Mounting Interface: Standard 5B backplane socket with 14-pin connector

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4. Functionality
The 5B47-K04 module functions as a precision signal conditioner for Type K thermocouples. It accepts a low-level thermoelectric voltage generated by the thermocouple, performs cold-junction compensation, linearizes the nonlinear thermocouple response, and outputs a high-level, isolated analog voltage signal (0–5 V) proportional to the measured temperature.

Operating Principle:
1. The thermocouple generates a small voltage proportional to the temperature difference between the measurement junction and the reference junction.
2. The module’s input stage amplifies this voltage and applies cold-junction compensation using an internal temperature sensor located at the input terminals.
3. The signal is then linearized through precision analog circuitry to produce a voltage output directly proportional to the temperature in degrees Celsius.
4. The output stage provides galvanic isolation and drives the 0–5 V signal to the connected data acquisition or control system.

Use Cases and Applications:
- Industrial process monitoring and control
- Laboratory temperature measurement systems
- Data acquisition systems (DAQ)
- Environmental monitoring and test setups
- Embedded control systems requiring isolated temperature inputs
- OEM instrumentation and automation equipment

Compatibility:
- Fully compatible with 5B Series backplanes and carriers (e.g., 5B01, 5B08, 5B02, 5B03).
- Interfaces with analog input channels of PLCs, DAQ cards, and SCADA systems.
- Suitable for integration with National Instruments, Analog Devices, and other 5B-compatible systems.

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5. Components & Accessories
Included Items:
- 1 × 5B47-K04 thermocouple input module
- Factory calibration and test documentation (if supplied by manufacturer)

Optional Accessories:
- 5B Series backplanes (e.g., 5B01 single-channel, 5B08 eight-channel)
- DIN-rail mounting adapters
- Thermocouple extension cables and connectors (Type K compatible)
- Shielded enclosures for EMI protection
- Power supply modules for 5B systems

Connectors:
- Input: Screw terminal or plug-in connector for thermocouple leads (Type K)
- Output: 14-pin edge connector mating with 5B backplane
- Power: Supplied through backplane connector

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6. Installation & Setup
Requirements:
- Compatible 5B backplane or carrier board
- Type K thermocouple sensor
- Power supply via backplane (+5 V DC nominal)
- Proper grounding and shielding for noise reduction

Mounting Options:
- Plug-in installation into 5B backplane socket
- DIN-rail or panel mounting via backplane accessories

Configuration Steps:
1. Insert the 5B47-K04 module into the appropriate slot on the 5B backplane.
2. Connect the Type K thermocouple leads to the input terminals, observing correct polarity (Chromel positive, Alumel negative).
3. Connect the backplane output to the data acquisition or control system input channel.
4. Power the system and verify output scaling (0 V = 0°C, 5 V = 1000°C).
5. Perform system-level calibration if required for specific accuracy needs.

Environmental Considerations:
- Avoid exposure to excessive vibration or mechanical shock.
- Ensure adequate ventilation for thermal stability.
- Maintain ambient temperature within specified operating range.

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7. Performance & Capabilities
Speed and Response:
The module is optimized for temperature measurement applications where stability and accuracy are prioritized over high-speed response. With a bandwidth of approximately 3 Hz and a response time of around 100 ms, it provides smooth, noise-free output suitable for process control and monitoring.

Capacity and Range:
- Input range: 0°C to +1000°C (Type K thermocouple)
- Output range: 0–5 V DC, linearized
- The module can be used in multi-channel systems with up to 8 or more modules on a single backplane.

Efficiency and Accuracy:
- High linearity and low drift ensure consistent performance over time.
- Internal cold-junction compensation maintains accuracy across varying ambient conditions.
- Isolation minimizes ground loop errors and improves measurement reliability.

Limitations:
- Designed specifically for Type K thermocouples; not suitable for other thermocouple types without recalibration.
- Limited bandwidth makes it unsuitable for rapidly changing temperature measurements.
- Requires 5B-compatible backplane for operation.

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8. Standards & Compliance
Certifications and Compliance:
- Designed to meet or exceed IEC, ANSI, and NIST standards for thermocouple measurement accuracy.
- Electrical isolation and safety conform to industrial instrumentation standards (typically IEC 61010-1).
- RoHS compliant (Restriction of Hazardous Substances).
- CE marked for electromagnetic compatibility and safety (depending on manufacturer).
- UL recognized components (housing and connectors).

Industry Standards Supported:
- Type K thermocouple standard per IEC 60584-1 and ANSI MC96.1
- 5B Series mechanical and electrical interface standard
- Analog output scaling standard (0–5 V DC) for DAQ and control systems

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9. Additional Information
Warranty:
Typically supplied with a standard manufacturer’s warranty (1–3 years depending on supplier) covering defects in materials and workmanship.

Support:
- Technical documentation, datasheets, and calibration certificates available from manufacturer or authorized distributors.
- Application notes and integration guides for 5B Series modules.
- Customer support for configuration, troubleshooting, and replacement.

Maintenance:
- No routine maintenance required; periodic calibration recommended for critical applications.
- Inspect connectors and wiring periodically for corrosion or mechanical wear.
- Store in dry, temperature-controlled environment when not in use.

Updates and Compatibility:
- Fully compatible with existing 5B Series infrastructure.
- Future firmware or hardware revisions (if applicable) maintain backward compatibility.
- Replacement modules available under the same part number for long-term system support.

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Summary
The 5B47-K04 Thermocouple Input Module is a high-performance, isolated signal conditioning device engineered for precise temperature measurement using Type K thermocouples. It converts a thermocouple input range of 0°C to +1000°C into a linear 0–5 V output, providing cold-junction compensation, linearization, and galvanic isolation. Designed for integration into 5B Series backplanes, it offers robust performance, high accuracy, and reliable operation in industrial and laboratory environments.

Its combination of compact design, electrical isolation, and standardized output makes it ideal for data acquisition, process control, and instrumentation systems requiring accurate and stable temperature measurement. The 5B47-K04 exemplifies the reliability and modularity of the 5B Series, ensuring long-term compatibility and ease of integration across a wide range of applications.