The ABB AI835 (3BSE008520R1) is an 8-channel analog input module designed for the S800 I/O system. This module is specifically engineered to interface with thermocouple and millivolt (mV) signals, providing high-precision data acquisition for industrial control applications within the Advant OCS and 800xA distributed control environments.
Features
- Eight isolated analog input channels.
- Native support for thermocouple and millivolt signal ranges.
- Designed for integration with ABB S800 I/O mounting bases.
- Supports hot-swapping for maintenance without system shutdown.
- High-density packaging for space-efficient control cabinet design.
Applications
This module is widely utilized in process automation environments requiring temperature monitoring or low-level signal processing. It is ideal for industries such as power generation, chemical processing, and oil and gas, where reliable thermocouple signal conversion is critical for process loop control.
Technical Specifications
| Model | AI835 |
| Order Code | 3BSE008520R1 |
| Manufacturer | ABB |
| Module Type | Analog Input (TC/mV) |
| Channel Count | 8 |
| Weight | 0.32 kg |
Installation Guidelines
- Ensure the I/O base is properly mounted on a standard DIN rail before inserting the module.
- Handle the module using electrostatic discharge (ESD) protection practices to prevent damage to internal circuitry.
- Verify that the module is fully seated in the terminal base and locked to ensure reliable electrical connection.
- Use appropriate shielded cabling for all thermocouple and millivolt inputs to minimize electromagnetic interference (EMI).
- Always disconnect power to the I/O bus before performing hardware installation or module replacement.
FAQ
What is the primary function of the ABB AI835 module?
The AI835 is an analog input module used in the S800 I/O system to convert thermocouple and millivolt signals into digital format for processing by the controller.
Is this module compatible with the 800xA system?
Yes, the AI835 is a standard component of the ABB S800 I/O series, which is fully compatible with the 800xA control platform.
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