ABB 3BDH000741R1 Temperature input module

ABB 3BDH000741R1 temperature input module detailed analysis

ABB's 3BDH000741R1 is a temperature input module for industrial automation systems, belonging to the Symphony Plus series. The following is the key information about it:

1. Functional positioning

This module is mainly used to collect and process temperature signals in industrial environments, convert analog signals of various temperature sensors (such as thermocouples, thermal resistors) into digital signals, and transmit them to the control system for monitoring and analysis.

2. Product features

High-precision measurement

Built-in cold end compensation circuit (for thermocouples) automatically corrects the influence of ambient temperature to ensure measurement accuracy.

Supports linearization processing, which can convert nonlinear temperature signals (such as PT100) into linear output.

Flexible configuration

Configure input type, measurement range, filtering parameters, etc. through software or DIP switches to adapt to different sensors and application scenarios.

Some models support disconnection detection function, which automatically alarms when the sensor cable is disconnected.

Reliability design

Industrial-grade components, vibration-resistant and shock-resistant, adapt to harsh industrial environments.

Support hot-swap (system permission required), no downtime required for maintenance.

IV. Application scenarios

Power industry: monitoring transformer oil temperature, generator bearing temperature, switch cabinet contact temperature, etc.

Chemical / Pharmaceutical: reactor temperature control, pipeline temperature monitoring, constant temperature workshop environment monitoring.

Metallurgy / Building Materials: furnace temperature, heat treatment equipment temperature, cooling system temperature monitoring.

HVAC system: air conditioning unit temperature control, chilled water / cooling water temperature monitoring.