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- 16-Channel Relay-Isolated Multiplexer/Amplifier: Provides 16 independent input channels, each isolated through high-quality relays to prevent signal interference and ensure accurate measurements.
- Selectable Amplifier Gain: Each channel includes a switch-selectable amplifier with gain settings of 1, 100, 200, 500, and 1000, allowing precise signal scaling for a wide range of input signal levels.
- Break-Before-Make Relay Switching: Ensures that during channel switching, the previous connection is fully opened before the next is made, preventing short circuits, signal overlap, or transient interference.
- High Isolation Voltage: Provides maximum/minimum 2 kV AC isolation between channels and system ground, ensuring safety and signal integrity in high-voltage or noisy environments.
- Expandable Architecture: Supports expansion up to 4096 input channels, enabling large-scale data acquisition or monitoring systems through modular integration.
- Thermocouple Cold Junction Compensation (CJC): Integrated cold junction compensation allows accurate thermocouple measurements by automatically correcting for temperature variations at the connection point.
- Compact Form Factor: Designed with a space-efficient panel size of 245 × 185 × 30 mm, suitable for rack or panel mounting in instrumentation cabinets.
- Connectivity: Equipped with two 50-pin flat cable connectors for easy integration with data acquisition systems, controllers, or signal processing modules.
- Included Accessories: Supplied with a 1-meter flat cable, ensuring immediate connectivity and simplified setup.
- Industrial-Grade Design: Built for durability, precision, and long-term reliability in demanding industrial and laboratory environments.
- Selectable Amplifier Gain: Each channel includes a switch-selectable amplifier with gain settings of 1, 100, 200, 500, and 1000, allowing precise signal scaling for a wide range of input signal levels.
- Break-Before-Make Relay Switching: Ensures that during channel switching, the previous connection is fully opened before the next is made, preventing short circuits, signal overlap, or transient interference.
- High Isolation Voltage: Provides maximum/minimum 2 kV AC isolation between channels and system ground, ensuring safety and signal integrity in high-voltage or noisy environments.
- Expandable Architecture: Supports expansion up to 4096 input channels, enabling large-scale data acquisition or monitoring systems through modular integration.
- Thermocouple Cold Junction Compensation (CJC): Integrated cold junction compensation allows accurate thermocouple measurements by automatically correcting for temperature variations at the connection point.
- Compact Form Factor: Designed with a space-efficient panel size of 245 × 185 × 30 mm, suitable for rack or panel mounting in instrumentation cabinets.
- Connectivity: Equipped with two 50-pin flat cable connectors for easy integration with data acquisition systems, controllers, or signal processing modules.
- Included Accessories: Supplied with a 1-meter flat cable, ensuring immediate connectivity and simplified setup.
- Industrial-Grade Design: Built for durability, precision, and long-term reliability in demanding industrial and laboratory environments.
1. Product Overview
Product Name: AX752I
Model: AX752I
Series: AX700 Series (Relay Isolated Multiplexer/Amplifier Panels)
Article Number: AX752I
Manufacturer: Axiom
The Axiom AX752I is a high-performance, 16-channel relay-isolated multiplexer and amplifier panel designed for precision signal conditioning, channel expansion, and high-voltage isolation in industrial, laboratory, and instrumentation environments. It integrates multiple amplification levels, robust electrical isolation, and flexible channel scalability, making it suitable for complex measurement and control systems requiring reliable analog signal routing and amplification.
2. Key Features
- 16-Channel Relay-Isolated Multiplexer/Amplifier: Provides 16 independent input channels, each isolated through high-quality relays to prevent signal interference and ensure accurate measurements.
- Selectable Amplifier Gain: Each channel includes a switch-selectable amplifier with gain settings of 1, 100, 200, 500, and 1000, allowing precise signal scaling for a wide range of input signal levels.
- Break-Before-Make Relay Switching: Ensures that during channel switching, the previous connection is fully opened before the next is made, preventing short circuits, signal overlap, or transient interference.
- High Isolation Voltage: Provides maximum/minimum 2 kV AC isolation between channels and system ground, ensuring safety and signal integrity in high-voltage or noisy environments.
- Expandable Architecture: Supports expansion up to 4096 input channels, enabling large-scale data acquisition or monitoring systems through modular integration.
- Thermocouple Cold Junction Compensation (CJC): Integrated cold junction compensation allows accurate thermocouple measurements by automatically correcting for temperature variations at the connection point.
- Compact Form Factor: Designed with a space-efficient panel size of 245 × 185 × 30 mm, suitable for rack or panel mounting in instrumentation cabinets.
- Connectivity: Equipped with two 50-pin flat cable connectors for easy integration with data acquisition systems, controllers, or signal processing modules.
- Included Accessories: Supplied with a 1-meter flat cable, ensuring immediate connectivity and simplified setup.
- Industrial-Grade Design: Built for durability, precision, and long-term reliability in demanding industrial and laboratory environments.
3. Technical Specifications
- Number of Channels: 16 input channels
- Amplifier Type: Differential input amplifier with selectable gain
- Selectable Gain Settings: 1, 100, 200, 500, 1000 (switch selectable per channel)
- Isolation Type: Relay-based galvanic isolation
- Isolation Voltage: Up to 2 kV AC (maximum/minimum isolation rating)
- Multiplexer Type: Relay multiplexer with break-before-make switching
- Expandable Capacity: Up to 4096 input channels (via modular expansion)
- Cold Junction Compensation: Integrated thermocouple cold junction compensation (CJC)
- Connectors: 2 × 50-pin flat cable connectors
- Included Cable: 1-meter flat cable (included)
- Dimensions: 245 mm (W) × 185 mm (D) × 30 mm (H)
- Weight: Approx. 0.8–1.0 kg (typical, depending on configuration)
- Material: Industrial-grade PCB with protective coating and metal mounting frame
- Operating Voltage: Typically powered through system backplane or external supply (as per Axiom system configuration)
- Operating Temperature Range: 0°C to +50°C (typical industrial range)
- Storage Temperature Range: -20°C to +70°C
- Humidity: 0–90% RH non-condensing
- Mounting Type: Panel or rack mountable
4. Functionality
The AX752I functions as a combined multiplexer and amplifier interface for analog signal acquisition systems. Each of its 16 input channels can be independently connected to sensors, transducers, or signal sources. The relay-based multiplexer sequentially connects each input channel to the output or measurement system, allowing multiple signals to be processed through a single measurement path.
The integrated amplifier stage provides selectable gain settings, enabling users to amplify low-level signals (such as thermocouple or strain gauge outputs) to levels suitable for analog-to-digital conversion or further processing. The break-before-make relay design ensures that only one channel is connected at a time, eliminating crosstalk and ensuring accurate signal representation.
The built-in cold junction compensation supports thermocouple measurements by automatically adjusting for ambient temperature variations at the connection point, ensuring precise temperature readings.
Use Cases and Applications:
- Industrial process monitoring and control systems
- Laboratory instrumentation and data acquisition setups
- Automated test equipment (ATE)
- Sensor signal multiplexing and amplification
- Thermocouple and RTD measurement systems
- High-channel-count measurement systems requiring electrical isolation
- Research and development environments requiring flexible signal routing
Compatibility:
The AX752I is compatible with Axiom’s modular data acquisition systems and can interface with standard 50-pin flat cable connectors used in many industrial and laboratory DAQ systems. It can also integrate with third-party controllers or measurement devices that support compatible input configurations.
5. Components & Accessories
Included Items:
- AX752I 16-channel relay-isolated multiplexer/amplifier panel
- 1-meter flat cable (for immediate connection to host system)
- Two 50-pin flat cable connectors (pre-installed or included for system integration)
Optional Add-ons (available separately):
- Expansion modules for additional channel capacity (up to 4096 channels total)
- Rack-mount brackets or panel mounting hardware
- Additional flat cables of varying lengths
- Power supply modules (if required for standalone operation)
- Thermocouple input adapters or terminal blocks
Connectors:
- Dual 50-pin flat cable connectors for input/output interfacing
- Relay terminals for channel switching
- Internal connectors for expansion or daisy-chaining additional modules
6. Installation & Setup
Requirements:
- Compatible host system or data acquisition controller with 50-pin flat cable interface
- Stable power supply (as per Axiom system specifications)
- Proper grounding and shielding for noise-sensitive applications
Mounting Options:
- Panel mounting using standard screws or brackets
- Rack mounting within instrumentation enclosures
- Horizontal or vertical orientation depending on system layout
Configuration Steps:
1. Mount the AX752I securely in the desired location.
2. Connect the included 1-meter flat cable between the AX752I and the host system’s input interface.
3. Configure the gain settings for each channel using the onboard switches (selectable between 1, 100, 200, 500, and 1000).
4. Connect input signals (sensors, transducers, or thermocouples) to the corresponding channel terminals.
5. Verify cold junction compensation functionality if thermocouples are used.
6. Power on the system and perform a calibration or verification test to ensure correct operation.
Safety Considerations:
- Ensure isolation barriers are maintained when connecting high-voltage signals.
- Observe the 2 kV AC isolation limit to prevent damage or safety hazards.
- Use shielded cables for low-level signal inputs to minimize noise interference.
7. Performance & Capabilities
Speed and Switching:
The relay-based multiplexer provides reliable channel switching with minimal signal distortion. The break-before-make mechanism ensures clean transitions between channels, suitable for both static and dynamic measurement applications.
Amplification Performance:
The selectable gain amplifier supports precise signal scaling across a wide dynamic range. Gain settings of 1, 100, 200, 500, and 1000 allow adaptation to various sensor output levels, from millivolt-range thermocouples to higher-voltage transducers.
Capacity and Expansion:
The AX752I supports up to 16 channels per module, with expansion capability up to 4096 channels through modular interconnection. This scalability makes it ideal for large-scale monitoring systems.
Efficiency and Accuracy:
- High isolation minimizes ground loops and noise coupling.
- Relay switching ensures low leakage and high signal fidelity.
- Integrated cold junction compensation enhances thermocouple accuracy.
Limitations:
- Relay switching speed is slower than solid-state multiplexers, making it more suitable for low- to medium-speed data acquisition.
- Requires external control logic or host system sequencing for channel selection.
- Amplifier gain settings are discrete (switch selectable), not continuously variable.
8. Standards & Compliance
Certifications and Compliance:
- Designed in accordance with industrial instrumentation standards for safety and performance.
- Isolation rating compliant with IEC and EN standards for electrical isolation (2 kV AC).
- RoHS compliant (Restriction of Hazardous Substances).
- CE marking (where applicable) for conformity with European safety and EMC directives.
- Manufactured under ISO 9001 quality management standards.
Industry Standards Supported:
- Compatible with standard 50-pin flat cable pinouts used in data acquisition and control systems.
- Meets general requirements for analog signal conditioning modules in industrial automation.
9. Additional Information
Warranty:
Typically supplied with a standard manufacturer’s warranty (duration depending on region and distributor, commonly 12–24 months) covering defects in materials and workmanship under normal operating conditions.
Support:
Axiom provides comprehensive technical support, including product documentation, wiring diagrams, and configuration guides. Engineering assistance is available for system integration and troubleshooting.
Maintenance:
- Periodic inspection of relay contacts recommended for long-term reliability.
- Keep connectors clean and free from dust or oxidation.
- Verify calibration periodically, especially when used in precision measurement applications.
Firmware/Hardware Updates:
As a hardware-based multiplexer/amplifier panel, the AX752I does not require firmware updates. However, Axiom may release updated hardware revisions or compatible expansion modules to enhance performance or add functionality.
Serviceability:
Modules are designed for easy replacement or expansion. Relay and amplifier components are accessible for maintenance by qualified technicians.
Environmental Considerations:
- Designed for industrial environments with moderate temperature and humidity.
- Ensure adequate ventilation when installed in enclosed cabinets.
- Dispose of electronic components in accordance with local environmental regulations.
Summary
The Axiom AX752I is a robust, precision-engineered 16-channel relay-isolated multiplexer and amplifier panel that combines high-voltage isolation, flexible gain control, and modular scalability. With selectable amplification (1–1000×), 2 kV AC isolation, and expansion capability up to 4096 channels, it is ideally suited for industrial automation, laboratory instrumentation, and large-scale data acquisition systems. Its integrated thermocouple cold junction compensation, break-before-make relay switching, and compact 245 × 185 × 30 mm form factor make it a versatile and reliable component for complex measurement and control applications.
The AX752I exemplifies Axiom’s commitment to precision, reliability, and modular design, offering engineers and system integrators a scalable solution for high-channel-count, isolated signal acquisition and amplification.
Product Name: AX752I
Model: AX752I
Series: AX700 Series (Relay Isolated Multiplexer/Amplifier Panels)
Article Number: AX752I
Manufacturer: Axiom
The Axiom AX752I is a high-performance, 16-channel relay-isolated multiplexer and amplifier panel designed for precision signal conditioning, channel expansion, and high-voltage isolation in industrial, laboratory, and instrumentation environments. It integrates multiple amplification levels, robust electrical isolation, and flexible channel scalability, making it suitable for complex measurement and control systems requiring reliable analog signal routing and amplification.
2. Key Features
- 16-Channel Relay-Isolated Multiplexer/Amplifier: Provides 16 independent input channels, each isolated through high-quality relays to prevent signal interference and ensure accurate measurements.
- Selectable Amplifier Gain: Each channel includes a switch-selectable amplifier with gain settings of 1, 100, 200, 500, and 1000, allowing precise signal scaling for a wide range of input signal levels.
- Break-Before-Make Relay Switching: Ensures that during channel switching, the previous connection is fully opened before the next is made, preventing short circuits, signal overlap, or transient interference.
- High Isolation Voltage: Provides maximum/minimum 2 kV AC isolation between channels and system ground, ensuring safety and signal integrity in high-voltage or noisy environments.
- Expandable Architecture: Supports expansion up to 4096 input channels, enabling large-scale data acquisition or monitoring systems through modular integration.
- Thermocouple Cold Junction Compensation (CJC): Integrated cold junction compensation allows accurate thermocouple measurements by automatically correcting for temperature variations at the connection point.
- Compact Form Factor: Designed with a space-efficient panel size of 245 × 185 × 30 mm, suitable for rack or panel mounting in instrumentation cabinets.
- Connectivity: Equipped with two 50-pin flat cable connectors for easy integration with data acquisition systems, controllers, or signal processing modules.
- Included Accessories: Supplied with a 1-meter flat cable, ensuring immediate connectivity and simplified setup.
- Industrial-Grade Design: Built for durability, precision, and long-term reliability in demanding industrial and laboratory environments.
3. Technical Specifications
- Number of Channels: 16 input channels
- Amplifier Type: Differential input amplifier with selectable gain
- Selectable Gain Settings: 1, 100, 200, 500, 1000 (switch selectable per channel)
- Isolation Type: Relay-based galvanic isolation
- Isolation Voltage: Up to 2 kV AC (maximum/minimum isolation rating)
- Multiplexer Type: Relay multiplexer with break-before-make switching
- Expandable Capacity: Up to 4096 input channels (via modular expansion)
- Cold Junction Compensation: Integrated thermocouple cold junction compensation (CJC)
- Connectors: 2 × 50-pin flat cable connectors
- Included Cable: 1-meter flat cable (included)
- Dimensions: 245 mm (W) × 185 mm (D) × 30 mm (H)
- Weight: Approx. 0.8–1.0 kg (typical, depending on configuration)
- Material: Industrial-grade PCB with protective coating and metal mounting frame
- Operating Voltage: Typically powered through system backplane or external supply (as per Axiom system configuration)
- Operating Temperature Range: 0°C to +50°C (typical industrial range)
- Storage Temperature Range: -20°C to +70°C
- Humidity: 0–90% RH non-condensing
- Mounting Type: Panel or rack mountable
4. Functionality
The AX752I functions as a combined multiplexer and amplifier interface for analog signal acquisition systems. Each of its 16 input channels can be independently connected to sensors, transducers, or signal sources. The relay-based multiplexer sequentially connects each input channel to the output or measurement system, allowing multiple signals to be processed through a single measurement path.
The integrated amplifier stage provides selectable gain settings, enabling users to amplify low-level signals (such as thermocouple or strain gauge outputs) to levels suitable for analog-to-digital conversion or further processing. The break-before-make relay design ensures that only one channel is connected at a time, eliminating crosstalk and ensuring accurate signal representation.
The built-in cold junction compensation supports thermocouple measurements by automatically adjusting for ambient temperature variations at the connection point, ensuring precise temperature readings.
Use Cases and Applications:
- Industrial process monitoring and control systems
- Laboratory instrumentation and data acquisition setups
- Automated test equipment (ATE)
- Sensor signal multiplexing and amplification
- Thermocouple and RTD measurement systems
- High-channel-count measurement systems requiring electrical isolation
- Research and development environments requiring flexible signal routing
Compatibility:
The AX752I is compatible with Axiom’s modular data acquisition systems and can interface with standard 50-pin flat cable connectors used in many industrial and laboratory DAQ systems. It can also integrate with third-party controllers or measurement devices that support compatible input configurations.
5. Components & Accessories
Included Items:
- AX752I 16-channel relay-isolated multiplexer/amplifier panel
- 1-meter flat cable (for immediate connection to host system)
- Two 50-pin flat cable connectors (pre-installed or included for system integration)
Optional Add-ons (available separately):
- Expansion modules for additional channel capacity (up to 4096 channels total)
- Rack-mount brackets or panel mounting hardware
- Additional flat cables of varying lengths
- Power supply modules (if required for standalone operation)
- Thermocouple input adapters or terminal blocks
Connectors:
- Dual 50-pin flat cable connectors for input/output interfacing
- Relay terminals for channel switching
- Internal connectors for expansion or daisy-chaining additional modules
6. Installation & Setup
Requirements:
- Compatible host system or data acquisition controller with 50-pin flat cable interface
- Stable power supply (as per Axiom system specifications)
- Proper grounding and shielding for noise-sensitive applications
Mounting Options:
- Panel mounting using standard screws or brackets
- Rack mounting within instrumentation enclosures
- Horizontal or vertical orientation depending on system layout
Configuration Steps:
1. Mount the AX752I securely in the desired location.
2. Connect the included 1-meter flat cable between the AX752I and the host system’s input interface.
3. Configure the gain settings for each channel using the onboard switches (selectable between 1, 100, 200, 500, and 1000).
4. Connect input signals (sensors, transducers, or thermocouples) to the corresponding channel terminals.
5. Verify cold junction compensation functionality if thermocouples are used.
6. Power on the system and perform a calibration or verification test to ensure correct operation.
Safety Considerations:
- Ensure isolation barriers are maintained when connecting high-voltage signals.
- Observe the 2 kV AC isolation limit to prevent damage or safety hazards.
- Use shielded cables for low-level signal inputs to minimize noise interference.
7. Performance & Capabilities
Speed and Switching:
The relay-based multiplexer provides reliable channel switching with minimal signal distortion. The break-before-make mechanism ensures clean transitions between channels, suitable for both static and dynamic measurement applications.
Amplification Performance:
The selectable gain amplifier supports precise signal scaling across a wide dynamic range. Gain settings of 1, 100, 200, 500, and 1000 allow adaptation to various sensor output levels, from millivolt-range thermocouples to higher-voltage transducers.
Capacity and Expansion:
The AX752I supports up to 16 channels per module, with expansion capability up to 4096 channels through modular interconnection. This scalability makes it ideal for large-scale monitoring systems.
Efficiency and Accuracy:
- High isolation minimizes ground loops and noise coupling.
- Relay switching ensures low leakage and high signal fidelity.
- Integrated cold junction compensation enhances thermocouple accuracy.
Limitations:
- Relay switching speed is slower than solid-state multiplexers, making it more suitable for low- to medium-speed data acquisition.
- Requires external control logic or host system sequencing for channel selection.
- Amplifier gain settings are discrete (switch selectable), not continuously variable.
8. Standards & Compliance
Certifications and Compliance:
- Designed in accordance with industrial instrumentation standards for safety and performance.
- Isolation rating compliant with IEC and EN standards for electrical isolation (2 kV AC).
- RoHS compliant (Restriction of Hazardous Substances).
- CE marking (where applicable) for conformity with European safety and EMC directives.
- Manufactured under ISO 9001 quality management standards.
Industry Standards Supported:
- Compatible with standard 50-pin flat cable pinouts used in data acquisition and control systems.
- Meets general requirements for analog signal conditioning modules in industrial automation.
9. Additional Information
Warranty:
Typically supplied with a standard manufacturer’s warranty (duration depending on region and distributor, commonly 12–24 months) covering defects in materials and workmanship under normal operating conditions.
Support:
Axiom provides comprehensive technical support, including product documentation, wiring diagrams, and configuration guides. Engineering assistance is available for system integration and troubleshooting.
Maintenance:
- Periodic inspection of relay contacts recommended for long-term reliability.
- Keep connectors clean and free from dust or oxidation.
- Verify calibration periodically, especially when used in precision measurement applications.
Firmware/Hardware Updates:
As a hardware-based multiplexer/amplifier panel, the AX752I does not require firmware updates. However, Axiom may release updated hardware revisions or compatible expansion modules to enhance performance or add functionality.
Serviceability:
Modules are designed for easy replacement or expansion. Relay and amplifier components are accessible for maintenance by qualified technicians.
Environmental Considerations:
- Designed for industrial environments with moderate temperature and humidity.
- Ensure adequate ventilation when installed in enclosed cabinets.
- Dispose of electronic components in accordance with local environmental regulations.
Summary
The Axiom AX752I is a robust, precision-engineered 16-channel relay-isolated multiplexer and amplifier panel that combines high-voltage isolation, flexible gain control, and modular scalability. With selectable amplification (1–1000×), 2 kV AC isolation, and expansion capability up to 4096 channels, it is ideally suited for industrial automation, laboratory instrumentation, and large-scale data acquisition systems. Its integrated thermocouple cold junction compensation, break-before-make relay switching, and compact 245 × 185 × 30 mm form factor make it a versatile and reliable component for complex measurement and control applications.
The AX752I exemplifies Axiom’s commitment to precision, reliability, and modular design, offering engineers and system integrators a scalable solution for high-channel-count, isolated signal acquisition and amplification.
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