Triconex 3703E Isolated Analog Input Module

Description

• • Physical Parameters
    • Appearance Color: Mustard yellow
    • Weight: 2.7 kg
    • Diagnostic Indicators: Configured with pass, fault, and active status indicators to reflect module and channel operating conditions
    • Installation Requirement: Needs external termination panel and mechanical keying for correct installation on Tricon chassis
  • Environmental Parameters
    • Operating Temperature: Adaptable to the common industrial temperature range of -40°C to 85°C
    • Storage Temperature: Withstands -55°C to 90°C for storage
    • Anti-interference Performance: Leg-to-leg isolation typically 20 kΩ; normal mode rejection reaches -3 dB at 8Hz, -17 dB at 60Hz, and -23 dB at 120Hz, effectively resisting electromagnetic interference
• Functional Features
  • Triple Modular Redundancy and Mid-value Selection: The module adopts triple modular redundancy architecture and uses a mid-value selection algorithm during signal processing. Even if one of the three channels fails, the system can still obtain accurate data through the algorithm, eliminating single points of failure and ensuring stable signal collection.
  • 16 Isolated Input Channels: It is equipped with 16 differential isolated input points. Each input channel operates independently, and the isolation design prevents mutual interference between channels. This enables the module to simultaneously collect signals from multiple field sensors without signal crosstalk affecting measurement results.
  • Continuous Diagnostics and Fault Alarms: It performs real-time diagnostics on each input channel during operation. When a channel fault is detected, it immediately activates the module’s fault indicator and triggers the chassis alarm. The fault indicator specifically targets channel faults rather than the entire module, allowing the module to continue operating even with up to two faulty channels.
  • Hot-spare Configuration Support: The module supports hot-spare functionality. When a working module malfunctions, it can seamlessly switch to a standby module. This allows on-site maintenance personnel to replace the faulty module online without shutting down the entire safety system, minimizing production downtime.
  • Wide Signal Compatibility: It can adapt to multiple common analog signal types including 0 – 5V, 0 – 10V voltage signals and 0 – 20mA current signals. It can be configured via Tristation 1131 software, which enables it to match various types of industrial sensors and meet diverse analog signal collection needs in different industrial scenarios.
• Application Scenarios
  • Oil and Gas Industry: It is installed in onshore refineries and offshore drilling platforms to collect analog signals from pressure, flow, and leakage sensors in oil and gas transmission pipelines. It transmits accurate data to the safety system, which helps activate emergency shutdown or alarm mechanisms in a timely manner when abnormal parameters are detected, ensuring the safety of extraction and transmission processes.
  • Petrochemical Industry: It is applied to chemical reactors and distillation towers to collect analog data such as temperature and pressure during chemical reactions. The high-precision signal collection ensures that the control system can adjust reaction conditions in real time, avoiding safety accidents caused by parameter deviations and ensuring the stability of the chemical production process.
  • Power Generation Industry: It is used in thermal power plants and nuclear power plants to track analog signals from key equipment such as turbines, boilers, and generators. It monitors parameters like steam pressure and temperature in real time. The reliable signal transmission supports the safety protection system to respond quickly to abnormal conditions, ensuring the stable operation of power generation equipment.
  • Metallurgical Industry: It is deployed in steel mills to collect analog signals from sensors in blast furnaces and smelting furnaces, such as temperature and molten iron level signals. It provides accurate data support for the smelting control system, helping to adjust smelting parameters reasonably, improve product quality, and prevent equipment damage caused by extreme parameters.
  • Chemical Processing Industry: It is integrated into the control systems of chemical material processing equipment to collect concentration and flow signals of chemical raw materials during the mixing and processing process. It meets the high safety requirements of the chemical industry. Its stable and accurate signal collection ensures that the processing process is carried out in accordance with standard parameters and reduces the risk of dangerous chemical reactions.