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TRICONEX 3805E Analog Input Module
Product Overview
The TRICONEX 3805E is a high-performance analog input module engineered for TRICONEX’s Tricon safety instrumented system (SIS), a critical platform for industrial safety and process control. It functions as a vital interface between field sensors—such as pressure transmitters, temperature transducers, and flow meters—and the SIS controller. The TRICONEX 3805E converts continuous analog signals from these sensors into digital data. This data is then used by the controller to monitor process variables, enabling real-time decision-making and the execution of safety-critical actions.
The TRICONEX 3805E features 16 differential channels, supporting a range of industrial signal types including 4–20mA, 0–20mA, 0–5V, and ±5V. It incorporates triple-modular redundancy (TMR) architecture. This design ensures that if one channel fails, the module continues operating using the remaining two. This eliminates single points of failure and meets Safety Integrity Level (SIL) 3 requirements. Each channel includes 250V AC galvanic isolation from the backplane. This protects against electrical noise and ground loops, which are common in facilities with heavy machinery or electromagnetic interference.
As part of the Tricon ecosystem, the TRICONEX 3805E integrates seamlessly with components like the TRICONEX 3503E (main processor module), TRICONEX 3625C1 (redundant power supply), and TRICONEX 3700 (digital output module). It operates in temperatures from 0°C to 60°C. It resists dust, vibrations, and humidity. It is certified for use in hazardous areas (ATEX, IECEx). Its compact design (160mm × 100mm × 30mm) fits into standard Tricon racks. LED indicators for each channel provide real-time status updates, simplifying troubleshooting.
Whether deployed in oil refineries, chemical plants, or nuclear facilities, the TRICONEX 3805E ensures accurate and timely data collection. It forms the foundation of robust safety systems that prevent accidents and protect personnel.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 3805E |
| Manufacturer | TRICONEX |
| Product Type | 16-Channel Differential Analog Input Module |
| Series | Tricon Safety Instrumented System |
| Number of Channels | 16 (differential) |
| Input Ranges | 4–20mA, 0–20mA, 0–5V, ±5V |
| Resolution | 16 bits |
| Accuracy | ±0.05% of full scale (0°C–60°C) |
| Isolation | 250V AC (channels to backplane) |
| Physical Dimensions | 160mm (L) × 100mm (W) × 30mm (D) |
| Weight | 0.55 kg |
| Operating Temperature | 0°C to 60°C |
| Humidity Resistance | 5–95% non-condensing |
| Safety Certification | SIL 3, IEC 61508, ATEX, IECEx |
| Country of Origin | United States |
3805E
3805E
Related Products
- TRICONEX 3503E: The main processor module of the Tricon SIS. It processes data from the 3805E to execute safety logic and trigger protective actions.
- TRICONEX 3625C1: A redundant power supply module. It provides stable 24V DC power to the 3805E and other Tricon components, ensuring continuous operation.
- TRICONEX 3700: A digital output module. It works with the 3805E in closed-loop systems. Analog data from the 3805E prompts the CPU to activate outputs like shutdown valves via the 3700.
- TRICONEX 3511: A 16-channel digital input module. It complements the 3805E in mixed-signal systems, handling discrete sensors alongside analog inputs.
- TRICONEX 4409: A communication module. It transmits data from the 3805E to SCADA systems, enabling remote monitoring of process variables.
- TRICONEX 8312: A rack assembly. It houses the 3805E and other modules, providing structural support and backplane connectivity.
- TRICONEX 3805: A predecessor to the 3805E with 12-bit resolution. It serves as a legacy alternative for older Tricon systems.
- TRICONEX 3721A: Another analog input module with similar channel count but different accuracy specs. It offers an alternative for applications with less stringent precision requirements than the 3805E.
Main features and advantages
Triple-modular redundancy (TMR): The 3805E uses three independent channels to process signals. If one channel fails, the other two continue operating. This ensures no single point of failure. This design meets SIL 3 requirements. It is ideal for critical applications like nuclear reactor coolant monitoring. Failure in such applications could lead to catastrophic consequences.
High precision: With 16-bit resolution and ±0.05% accuracy across its operating temperature range, the 3805E ensures precise conversion of analog signals. This level of precision is critical for applications like pharmaceutical manufacturing. In such applications, small variations in process variables can affect product quality.
Broad input compatibility: The module supports 4–20mA, 0–20mA, 0–5V, and ±5V inputs. This allows it to connect to a wide range of industrial sensors. It eliminates the need for external signal converters. This simplifies system design and reduces integration costs.
Electrical isolation: Each channel features 250V AC isolation from the backplane. This blocks electrical noise from motors, pumps, or welders. It ensures signal integrity in noisy environments like chemical plants. In such environments, electromagnetic interference could distort data and lead to incorrect safety decisions.
Industrial durability: The 3805E operates in temperatures from 0°C to 60°C. It resists dust, vibrations, and humidity. It performs reliably in harsh settings. These include freezing LNG terminals and humid offshore platforms. This reliability reduces unplanned downtime and maintenance costs.
Clear status monitoring: LED indicators on the front panel show the input status of each channel (normal/fault). Technicians can quickly identify issues like broken wires or faulty sensors without opening the rack. This speeds up troubleshooting in emergency situations.
Easy integration: The 3805E fits directly into Tricon racks like the 8312. It connects to the backplane for power and data. It configures easily via TRICONEX’s TriStation 1131 software. Pre-built function blocks for common analog signal processing tasks reduce setup time by up to 40%.
3805E
Installation and maintenance
Pre-installation preparations: Power off the Tricon rack (e.g., 8312) before installing the 3805E. Verify that the power supply (e.g., 3625C1) provides 24V DC within the 18–30V range. Inspect the module for physical damage. Ensure connectors are clean and intact. Use an anti-static wristband to handle the module. Static discharge can damage internal components. Align the module’s mounting brackets with the rack slots. Secure it with M6 screws to prevent movement during operation.
Maintenance suggestions: Inspect the 3805E quarterly. Check sensor connections for looseness. Wipe dust from the module’s surface with a dry cloth. Monitor LED indicators to ensure all channels show normal operation. Flashing or off LEDs may indicate a sensor fault. Test input signals annually using a calibrated voltage or current source to verify accuracy. If errors persist after sensor checks, replace the 3805E following proper shutdown procedures. Sudden removal could disrupt the Tricon SIS and trigger safety alarms.
Application fields
The TRICONEX 3805E is widely used in industries requiring precise monitoring of continuous process variables.
In oil and gas production, it monitors pressure and temperature signals from wellheads and pipelines. In offshore platforms, the 3805E collects data from downhole sensors. It detects abnormal pressure spikes. This triggers the SIS to close valves via the 3700 module. It prevents oil spills.
In chemical processing, the module tracks reactor temperature and flow rates. It ensures cooling systems maintain optimal conditions. It sends alerts to the controller if parameters deviate from safe ranges. This is critical for preventing runaway reactions in petrochemical plants.
In nuclear power plants, the 3805E monitors coolant temperature and level in reactor cores. Its TMR design ensures reliable signal transmission to the SIS. The SIS initiates shutdown procedures if unsafe conditions are detected. This protects workers and the environment.
In pharmaceutical manufacturing, the module measures pH levels and conductivity in sterile processing lines. It provides real-time data to quality control systems. This ensures compliance with regulatory standards. It minimizes the risk of product contamination.
In water treatment facilities, the 3805E monitors chemical dosage levels and water purity. It ensures treatment processes meet environmental standards. It prevents the release of untreated water into natural systems.
Product guarantee
Our company offers a one-year quality warranty service for the 3805E, covering hardware malfunctions not caused by human factors. During the warranty period, if the product shows abnormal performance or functional failure, we will provide replacement services. In addition, for discontinued models or urgent demands, relying on our global supply chain network, we can quickly respond to customers’ procurement needs for scarce spare parts, and provide reliable services to support the continuous and stable operation of industrial systems.
Our company is a leading enterprise in the industrial control industry, established in 2007, has been 17 years. The company type is an import and export trade distribution company, mainly selling major brands of industrial control parts, there are many unpopular discontinued models, with a large stock. Our company has the advantage of supply channels, a large number of spot, to meet the needs of customers anxious to find spare parts. Our main business includes the distribution and trade of PLC modules, DCS cards, ESD system cards, vibration monitoring system cards, turbine control system modules, gas generator spare parts, instruments and other products.
Whatsapp:+86 18859254943
E-mail :sales@ygplc.com
E-mail :sales@ygplc.com
