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Product Model: ABB SD831
Part Number: 3BSC610064R1
Brand: ABB
Series: SD Digital Signal Conditioning & Processor Modules
Product Type: Digital Signal Converter / Signal Conditioning Module
Category: Advanced Industrial Signal Processing and Interface Equipment
The ABB SD831 is a high‑performance digital signal conditioning module designed to convert, filter, linearize, isolate, and digitally process analog sensor signals for use in modern automation systems and digital control architectures.
The ABB SD831 3BSC610064R1 is engineered for industrial environments where precise analog‑to‑digital signal translation is required. This module takes raw analog inputs from a variety of field sensors — such as voltage signals, current loops, thermocouples, and RTDs (resistance temperature detectors) — and converts them into high‑fidelity digital representations suitable for programmable logic controllers (PLCs), distributed control systems (DCS), data acquisition systems (DAQ), operator interfaces, and higher‑level automation platforms.
Unlike simple analog conditioners, the SD831 performs digital signal processing that includes high‑resolution analog‑to‑digital conversion, noise filtering, linearization to engineering units, scaling, and isolation. The result is a stable, accurate digital output that delivers consistent measurement values to the automation system, improving control performance, diagnostic accuracy, and system reliability.
The SD831 is designed for continuous 24/7 operation, with industrial‑grade construction that tolerates typical temperature ranges, humidity levels, and electrical interference common in production environments. Its compact DIN‑rail or rack‑mount form factor enables efficient use of cabinet space and straightforward integration into existing automation systems.
| Parameter | Specification |
|---|---|
| Model | SD831 |
| Part Number | 3BSC610064R1 |
| Series | SD Digital Signal Conditioning & Processor |
| Product Type | Digital Signal Conditioning / Conversion |
| Input Signal Types | Voltage, Current, Thermocouple, RTD |
| Output Format | Digitally conditioned signals for PLC/DCS/DAQ |
| Signal Processing | High‑resolution digital A/D conversion |
| Input Impedance | High, dependent on configuration |
| Output Interface | Digital output compatible with automation hardware |
| Galvanic Isolation | Full isolation (input to output) |
| Accuracy | ±0.1 % of full scale (typical) |
| Response Time | < 100 ms |
| Supply Voltage | 24 V DC |
| Power Consumption | < 8 W |
| Operating Temperature | –10 °C to +55 °C |
| Storage Temperature | –20 °C to +70 °C |
| Relative Humidity | 5 % to 95 % non‑condensing |
| Protection Rating | IP20 |
| Mounting Type | DIN‑Rail or Rack Mount |
| Connection Method | Screw / Plug‑in Terminal |
| Dimensions (W × H × D) | 45 × 120 × 110 mm |
| Weight (kg) | Approx. 0.50 kg |
The SD831 is widely applicable across manufacturing, utilities, process automation, and industrial control systems wherever precise analog measurement data must be integrated into digital automation architectures.
Typical Application Scenarios Include:
• Conditioning and digitizing temperature measurements from thermocouples and RTDs for control loops.
• Preparing pressure, level, and flow transmitter signals for digital controllers.
• Pre‑processing analog sensor data for distributed control systems (DCS) and PLCs.
• Digital front‑end signal conditioning for data acquisition, trend logging, and historian systems.
• Reducing electrical noise in analog lines before digital conversion.
• Machine automation requiring precise and stable signal feedback.
• Environmental monitoring and instrumentation requiring interference‑resilient data.
• Utility automation and infrastructure monitoring requiring accurate digital sensor feeds.
In all these scenarios, the SD831 enhances measurement fidelity and ensures reliable data input to critical control and monitoring systems.
The SD831 performs advanced A/D conversion and digital conditioning to deliver stable, high‑accuracy signals.
Supports multiple analog input types, including current loops, voltage sources, thermocouples, and RTDs, making it versatile across sensor technologies.
Input and output circuits are fully isolated, enhancing immunity to electrical noise and eliminating ground loop issues.
Conditioned digital signals are compatible with modern automation hardware, ensuring seamless integration with PLCs, DCS, and data acquisition modules.
Built to withstand long‑term operation in industrial environments with standard temperature and humidity ranges.
DIN‑rail or rack mounting enables versatile integration into control cabinets and automation panels.
Digital filtering and response characteristics can be tailored to specific application requirements.
Terminal connections are clear, robust, and easy to wire during installation and maintenance.
Below are five similar or related signal conditioning and conversion modules within the SD, SC, or SB families:
| Model | Supported Inputs | Output Type | Supply Voltage | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| SD800 | Analog field inputs | Digital conditioned output | 24 V DC | 45×120×110 | 0.40 kg |
| SD810 | Voltage / Current | Digital output | 24 V DC | 45×120×110 | 0.41 kg |
| SD812 | Voltage/Current/Thermocouple/RTD | Digital conditioned output | 24 V DC | 45×120×110 | 0.42 kg |
| SD821 | Voltage/Current/Thermocouple/RTD | Digital conditioned output | 24 V DC | 45×120×110 | 0.45 kg |
| SD831 | Voltage/Current/Thermocouple/RTD | Digital conditioned output | 24 V DC | 45×120×110 | 0.50 kg |
Below are five widely used ABB automation hardware modules that complement digital signal conditioners like the SD831:
| Model | Device Type | Supply Voltage | Dimensions (mm) | Weight (kg) | Application |
|---|---|---|---|---|---|
| AC800M | Modular Controller | 24 V DC | 140×180×120 | 1.2 kg | Core automation CPU |
| PM856 | Processor Module | 24 V DC | 120×150×90 | 0.9 kg | Control processor |
| CI870 | Communication Interface | 24 V DC | 120×150×90 | 0.8 kg | Fieldbus network interface |
| AI820 | Analog Input Module | 24 V DC | 120×150×80 | 0.6 kg | Multi‑channel analog acquisition |
| DI820 | Digital Input Module | 24 V DC | 120×150×80 | 0.6 kg | Digital signal capture |
Q1: What is the main purpose of the SD831?
A: The SD831 conditions, filters, scales, and digitizes analog sensor signals for robust use in digital control systems.
Q2: What types of analog inputs does the SD831 support?
A: It supports voltage, current loops, thermocouples, and RTDs.
Q3: What kind of output does this device provide?
A: Digitally conditioned signals suitable for PLCs, distributed control systems, and data acquisition units.
Q4: What power supply is required for the SD831?
A: The module operates on a standard industrial 24 V DC supply.
Q5: How much does the SD831 weigh?
A: The approximate weight is 0.50 kg.
Q6: What are the physical dimensions of the SD831?
A: The dimensions are approximately 45 × 120 × 110 mm.
Q7: Where is this product typically installed?
A: It is typically installed on DIN rails or in racks inside control cabinets.
Q8: Why is galvanic isolation important in signal conditioning?
A: Galvanic isolation reduces electrical noise and prevents ground loop interference, improving signal quality.
Q9: In what industries is the SD831 commonly used?
A: It is used in manufacturing, utilities, process automation, chemical plants, and power systems.
Q10: Can it operate continuously under industrial conditions?
A: Yes, the SD831 is designed for continuous, stable operation in industrial environments.