GE IC695ALG508-AA

The GE IC695ALG508-AA is an 8-channel isolated RTD (Resistance Temperature Detector) input module belonging to the PACSystems RX3i series, originally produced by GE (now part of Emerson Automation). It is specifically designed for industrial automation systems, enabling high-precision temperature measurement. Through electrical isolation and flexible configuration, this module finds extensive application in process control and environmental monitoring across industries such as petrochemicals, metallurgy, and power.

Technical Parameters

• Number of Channels: 8 independent isolated differential RTD input channels.
• Supported RTD Types:
  • Platinum: Pt385, Pt391.6 (50Ω, 100Ω, 200Ω, 500Ω, 1000Ω)
  • Nickel-based: Ni618 (100Ω, 200Ω, 500Ω, 1000Ω), Ni672 (120Ω), NiFe518 (604Ω)
  • Copper: Cu426 (10Ω, 50Ω, 100Ω)
  • Other resistance values: 25Ω to 4000Ω.
• Measurement Range: -200°C to +850°C (depending on the RTD type).
• Resolution: 16-bit resolution, supporting 32-bit IEEE floating-point or 16-bit integer data formats.
• Electrical Isolation: Isolation voltage between channels, and between the module and the system, is 250VAC (continuous), 1500VAC (for 1 minute), 2550VDC (for 1 second).
• Communication Interface: Communicates through the PACSystems RX3i controller, requiring an RX3i CPU (firmware version 5.5 or higher).
• Installation Method: Supports DIN rail or rack mounting; terminal types include box-type, spring-type, etc.

Product Features

• High-precision Measurement: Uses advanced algorithms and linearization technology to ensure temperature measurement accuracy (typical error ±0.5%).
• Anti-interference Design: Electrical isolation and programmable notch filters (2.3 Hz to 28 Hz) effectively suppress noise interference.
• Flexible Configuration: RTD type, input range, sampling rate, and user scaling functions can be configured through software.
• Fault Detection: Supports open/short circuit detection, over/under alarm, and provides module status LED indication.
• Hot-swap Function: Supports hot swapping for easy maintenance.

Structure and Composition

• Core Components:
  • Circuit Board: Integrates RTD input circuits for 8 independent channels, supporting 2/3/4-wire RTD configurations.
  • Terminal Blocks: Provide options such as box-type and spring-type to meet different installation needs.
  • Power Management: Built-in 24VDC power supply, supporting backplane power supply.
  • Protection Design: Complies with UL, CE, ATEX and other certifications, suitable for hazardous areas (Class I, Div. 2).

Application Fields

• Industrial Process Control:
  • Temperature monitoring and regulation in petrochemical, metallurgy, and power industries.
  • Control of key process parameters in food processing.
• Energy Management:
  • Temperature monitoring in power plants and HVAC systems.
• Environmental Monitoring:
  • Real-time temperature collection in high-temperature environments such as furnaces and pipelines.

Installation and Maintenance

• Installation Requirements:
  • Must be installed on the RX3i Universal Backplane, and requires a supporting RX3i CPU (firmware ≥ 5.5).
  • Terminal blocks need to be ordered separately, supporting extended design to adapt to shielded cables.
• Maintenance Recommendations:
  • Regularly check the connection status of terminal blocks to ensure no looseness or corrosion.
  • Use the module's self-diagnostic function to troubleshoot faults (such as open circuit detection).

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