ABB AI835 3BSE008520R1 Analog Input Module

Overview

The ABB AI835 3BSE008520R1 is a versatile analog input module designed for the ABB S800 I/O system. With 8 differential input channels, this module is specifically optimized for thermocouple and mV measurements. It offers high precision, exceptional isolation, and is certified for demanding industrial environments. The AI835 ensures accurate measurements while maintaining safety and reliability for various industrial applications.

Key Features

8 Differential Input Channels: The module provides 8 independent channels for precise thermocouple and millivolt signal measurement.
Thermocouple Support: Compatible with a variety of thermocouple types, including B, C, E, J, K, N, R, S, T, D, L, and U.
High-Precision Measurements: 15-bit A/D conversion ensures high measurement accuracy.
Input Impedance: With an impedance of 1 MΩ, the module minimizes measurement interference, ensuring accurate data.
Isolation: Features group-wise isolation from ground for improved safety and reliability in industrial settings.
High Accuracy: Offers a maximum error of only 0.1%, providing consistent and reliable data.

Technical Specifications

Specification	Details
Part Number	3BSE008520R1
Manufacturer	ABB
Product Type	Analog Input Module
Input Channels	8 differential channels
Measurement Range	-30 mV to +75 mV
Thermocouple Types Supported	B, C, E, J, K, N, R, S, T, D, L, U
Resolution	15-bit A/D conversion
Input Impedance	1 MΩ
Accuracy	Maximum error: 0.1%
Temperature Drift	Typical: 5 ppm/°C Maximum: 7 ppm/°C
Update Cycle Time	50 Hz: 280 ms + 80 ms per active channel 60 Hz: 250 ms + 70 ms per active channel
Field Cable Length	Up to 600 meters (656 yards)
CMRR (Common Mode Rejection Ratio)	120 dB at 50 Hz, 60 Hz
NMRR (Noise Mode Rejection Ratio)	60 dB at 50 Hz, 60 Hz
Insulation Voltage	50 V, Dielectric test voltage: 500 V AC
Power Dissipation	1.6 W
Current Consumption	+5 V Module bus: 75 mA +24 V Module bus: 50 mA +24 V external: @ mA
Operating Temperature Range	0°C to +55°C (approval for +5°C to +55°C)
Storage Temperature Range	-40°C to +70°C
Pollution Degree	Degree 2 (IEC 60664-1)
Corrosion Protection	ISA-S71.04 G3
Relative Humidity	5% to 95%, non-condensing
Protection Class	IP20 (per IEC 60529)

Physical Dimensions and Environmental Tolerance

Dimensions (W x H x D): 102 mm x 119 mm x 45 mm
Weight: 0.3 kg
Power Supply: 24 VDC (module bus)
Protection Class: IP20, ensuring durability in industrial environments
Operating Temperature: 0°C to +55°C
Storage Temperature: -40°C to +70°C

Environmental Protection

Pollution Degree: Designed for Degree 2 environments as per IEC 60664-1
Corrosion Protection: Complies with ISA-S71.04 G3 for industrial environments prone to corrosive atmospheres.
Relative Humidity: Works effectively in environments with 5% to 95% humidity, without condensation.

Applications

The ABB AI835 3BSE008520R1 is well-suited for applications in various industries where precise temperature measurements are essential:

Petroleum and Natural Gas: Used for temperature monitoring in pipelines, refineries, and extraction systems.
Chemical Industry: Ideal for temperature control in reactors and process lines.
Power Generation: For reliable temperature monitoring in turbines, boilers, and energy systems.
Metallurgy: Perfect for applications in steel manufacturing and high-temperature processing.