The ABB AI835, part number 3BSE008520R1, is a high-precision analog input module specifically engineered for temperature measurement within the S800 I/O system. This 8-channel module is designed to interface directly with thermocouples and low-voltage mV signals, converting these sensitive analog inputs into digital data for the Distributed Control System (DCS). By incorporating advanced cold-junction compensation and signal isolation, the AI835 ensures high-fidelity data acquisition for critical thermal monitoring and process control applications.
Core Specifications
| Attribute | Specification |
| Manufacturer | ABB |
| Product Family | S800 I/O |
| Model Number | AI835 |
| Order Code | 3BSE008520R1 |
| Input Channels | 8 Isolated Channels |
| Input Types | Thermocouples (B, C, E, J, K, N, R, S, T) and mV |
| Resolution | 14 bits |
| Operating Temperature | -25°C to +70°C |
| Weight | 0.24 kg |
| Physical Dimensions | 4.5cm x 10.5cm x 11.8cm |
| Origin | Sweden |
Industrial Applications
The AI835 3BSE008520R1 is a standard solution for temperature-intensive processes in sectors such as:
- Metal Processing: High-accuracy monitoring of furnace and kiln temperatures.
- Power Plants: Tracking steam and bearing temperatures in turbine operations.
- Chemical Industry: Real-time thermal management for exothermic and endothermic reactors.
- Manufacturing: Precise heat control for plastic injection molding and glass production.
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