ABB Bailey IIDST02 Signal Conditioner Module

The ABB Bailey IIDST02 is a signal conditioner module within the Bailey INFI 90 Distributed Control System (DCS). Similar to its counterpart, the IIDST04, it's dedicated to temperature measurement, but this time focusing on thermocouples as the sensor type.

Here's an overview of its key aspects:

Function:
Accurately measures temperature using thermocouples, converting the millivolt signals they produce into a usable 4-20 mA or HART® digital output for the INFI 90 DCS.

Specifications:
Input channels: 2 channels for thermocouple sensors
Sensor types: Various thermocouple types like J, K, T, E, B, R, S, etc. (configurable)
Input range: Wide range depending on thermocouple type (e.g., J-type: -200°C to +1200°C)
Accuracy: Class A or B according to IEC 60751
Resolution: Up to 0.1°C
Output signal: 4-20 mA or HART® protocol
Power supply: 24 VDC
Dimensions: Approximately 178 x 76 x 279 mm (similar to other INFI 90 modules)
Weight: Around 1.4 kg (similar to other INFI 90 modules)

Features:
Cold junction compensation: Ensures accurate temperature readings by accounting for ambient temperature variations at the module.
Linearization: Converts the non-linear voltage output of thermocouples to a linear current or digital signal for easier integration with control systems.
Diagnostics: Provides self-diagnostic features to detect sensor faults and module issues.
Isolation: Galvanic isolation between input and output channels protects against ground loops and noise interference.
Configuration: Can be easily configured through the INFI 90 programming software.

Applications:
Commonly used in industrial processes where high-temperature measurement is crucial, employing thermocouples due to their wider range and high-temperature resistance compared to RTDs. Some examples include:
Metalworking and smelting: Monitoring furnace temperatures, molten metal temperatures, etc.
Glass and ceramics production: Monitoring kiln temperatures, melting furnace temperatures, etc.
Chemical and petrochemical processing: Monitoring reactor temperatures, pipeline temperatures, etc.
Aerospace and automotive industries: Monitoring engine exhaust temperatures, combustion chamber temperatures, etc.

The ABB Bailey IIDST02 offers a reliable and accurate solution for thermocouple temperature measurement in demanding industrial environments. Its features and compact design make it a suitable choice for various control and monitoring systems requiring high-temperature sensing.

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Company Service:

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4. Quality assurance (Products come with a 1-year warranty)

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