AI843 Temperature Input | ABB 3BSE028925R1 16-bit

ABB AI843 Analog Input Module

High-precision 8-channel thermocouple input module with 16-bit resolution for accurate temperature measurement in industrial applications.

Product Identification

• Brand: ABB
• Model: AI843
• Product ID: 3BSE028925R1
• Product Type: Analog Input Module
• System Series: S800 I/O

Electrical Specifications

• Input Channels: 8 analog inputs
• Input Range: -30 to +75 mV linear
• Resolution: 16-bit high precision
• Input Impedance: >1 MΩ
• Isolation: Groupwise isolated from ground
• Accuracy: ±0.1% of reading
• Update Rate: 50ms per channel

Thermocouple Compatibility

• Type B, C, E, J, K, L, N, R, S, T, U
• Automatic cold junction compensation
• Linearization for all supported types
• Open circuit detection
• Break detection capability
• Out-of-range monitoring

Physical Specifications

• Dimensions: 11.9cm × 4.5cm × 10.2cm (H×W×D)
• Module Weight: 0.25kg (0.55lb)
• Shipping Weight: 1.3kg (2.87lb)
• Mounting Type: DIN Rail mountable
• Protection Rating: IP20 for indoor use
• Connection: Screw terminal blocks

Power Specifications

• Power Consumption: 4.5W typical
• Power Supply: 24V DC via ModuleBus
• Operating Voltage Range: 19.2-32V DC
• Current Consumption: Optimized for efficiency

Performance Features

• High 16-bit resolution ADC
• Individual channel configuration
• LED status indicators per channel
• Overvoltage protection
• Noise filtering and rejection
• Hot-swappable design
• Diagnostic capabilities

Environmental Specifications

• Operating Temperature: -10°C to +60°C
• Storage Temperature: -40°C to +85°C
• Relative Humidity: 5% to 95% non-condensing
• Altitude Rating: Up to 2000 meters
• Vibration Resistance: 2.5g (10-150Hz)

Installation Requirements

• 35mm standard DIN rail mounting
• Proper grounding essential
• Adequate ventilation space
• Wire size: 0.5-2.5mm² recommended
• Terminal torque: 0.5-0.6Nm
• Shielded cables for noise immunity

Warranty & Support

• 12-Month Manufacturer Warranty
• Technical support available
• Online documentation access
• Global service network
• Application engineering support

Frequently Asked Questions

• What thermocouple types are supported?
  Types B, C, E, J, K, L, N, R, S, T, and U thermocouples.
• What is the resolution of this module?
  16-bit high resolution for precise temperature measurement.
• What is the warranty period?
  12-month manufacturer warranty included.