3BSE051306R1 | ABB AI835A Analog Input Module - TC/MV

Overview

The ABB AI835 3BSE051306R1 is an 8-channel differential analog input module designed for S800 I/O systems to process precision thermocouple and millivolt temperature signals from field instruments to process controllers.

Technical Specifications

• Product Type: Analog Input Module
• Part Number: 3BSE051306R1
• Model: AI835A
• Mechanics: S800
• Number of Channels: 8
• Signal Type: Differential inputs
• Linear Measurement Range: -30 to +75 mV
• Thermocouple Types: B, C, D, E, J, K, L, N, R, S, T, U
• Resolution: 15 bits
• Input Impedance: > 1 MΩ
• Isolation: Groupwise isolated from ground
• Maximum Error: 0.1%
• Temperature Drift: Typ. 5 ppm/°C, Max. 7 ppm/°C
• Update Cycle Time (50 Hz): 280 + 80 * (number of active channels) ms
• Update Cycle Time (60 Hz): 250 + 70 * (number of active channels) ms
• Maximum Field Cable Length: 600 meters
• CMRR (50Hz, 60Hz): 120 dB
• NMRR (50Hz, 60Hz): > 60 dB
• Rated Insulation Voltage: 50 V
• Dielectric Test Voltage: 500 V a.c.
• Power Dissipation: 1.6 W
• Current Consumption (+5 V Modulebus): 75 mA
• Current Consumption (+24 V Modulebus): 50 mA
• Current Consumption (+24 V External): 0 mA
• HART Communication: No
• SOE: No
• Redundancy: No
• High Integrity: No
• Intrinsic Safety: No
• Front LEDs: F(ault), R(un), W(arning)
• Supervision Diagnostics: Reference channels, power supply low, open-circuit wire break
• Cold Junction Channel 8 Range: -40 to 100 °C
• Compatible Module Termination Units (MTUs): TU810, TU812, TU814, TU818, TU830, TU833
• Width: 45 mm
• Depth: 102 mm (111 mm including connector)
• Height: 119 mm
• Weight: 0.22 kg

Key Features

• Provides 8 differential channels configurable for exact linear millivolt or high-density thermocouple tracking.
• Designates Channel 8 as a dedicated Cold Junction (CJ) reference compensation channel via 4-wire Pt100 RTD.
• Delivers advanced 15-bit analog-to-digital signal conversion with extremely low 7 ppm/°C maximum thermal drift.
• Features integrated continuous hardware supervision to detect and report wire-break open-circuit errors per channel.
• Maintains strong system integrity through groupwise galvanic isolation rated to withstand 500 V a.c. conditions.

Installation Notes

• Mount the module firmly onto a compatible S800 Module Termination Unit (MTU) including TU810 or TU833 inside a shielded enclosure.
• Connect thermocouple element wiring directly to the assigned MTU terminals ensuring proper cold junction reference settings.
• Ensure full functional earth connection of the DIN rail system to meet the designated 50 V rated insulation voltage specifications.
• Monitor the module front-panel F, R, and W status LEDs closely during initialization to verify error-free parameter loading.