TRICONEX 3721N

The TRICONEX 3721N module is a key component in Schneider Electric’s TRICONEX family of Safety Instrumentation systems (SIS). It is mainly used to collect analog signals in industrial processes, such as temperature, pressure, flow, etc. After these analog signals are processed and converted inside the module, they can be used by safety instrumentation systems to monitor, control and protect industrial processes.

Product parameters and specifications
General parameters:

Model: 3721N
Type: Analog input module
Function: Collect analog signal
Input signal: Usually 4-20mA or 0-10V
Number of channels: There are multiple independent analog input channels on the module
Accuracy: High precision, can accurately collect analog signals
Isolation: Each channel has an isolation function to prevent signal interference

Redundancy: Supports TMR (Triple module redundancy) to improve system reliability
Other specifications:

Power supply: TRICONEX system
Communication: Communication with other modules via the TRICONEX system bus
Ambient temperature: 0℃ ~ 55℃
Humidity: 5%-95%RH (no condensation)
Note: Specific specifications may vary with different versions or configurations, please refer to the official product documentation.

Product characteristics
High reliability: TMR technology is used to ensure the high availability of the system.
High precision: has a high measurement accuracy, can accurately reflect the process variables.
Multi-channel: Support multiple analog input channels, can collect multiple signals at the same time.
Isolation protection: Each channel has an isolation function to prevent signal interference.
Flexible configuration: Flexible configuration based on different application requirements.
Application field
Petrochemical: Process control, safety interlocking system
Electricity: power plants, substations
Nuclear power: Safety protection system
Other high-risk industries: chemical industry, metallurgy, etc