Description
Product Overview
The 3721 Analog Input Module from Triconex delivers high-precision signal acquisition for demanding industrial control systems. Built for Tricon System platforms, this module supports pressure, temperature, and flow measurements with DC coupling and a wide input range.
Engineers rely on the 3721 for its Triple Modular Redundancy (TMR) architecture, which ensures fault-tolerant operation and eliminates single points of failure. The module operates reliably in extreme temperatures from -40°C to +70°C, making it suitable for petrochemical, power, and manufacturing sectors.
Its modular design simplifies installation and reduces maintenance time. The 3721 supports MODBUS and other industrial protocols, enhancing system interoperability and integration flexibility. Rugged construction and compact dimensions allow efficient cabinet layout and protection against environmental hazards.
Technical Specifications
| Parameter |
Specification |
| Model Number |
3721 |
| Manufacturer |
Triconex |
| Product Range |
Tricon System |
| Module Type |
Analog Input Module |
| System |
DCS |
| Input Type |
Pressure, Temperature, Flow |
| Coupling |
DC Coupled |
| Architecture |
Triple-Modular Redundant (TMR) |
| Communication |
MODBUS, Ethernet Router |
| Certifications |
UL, CE, CSA, IEC 61508 SIL3 |
| Operating Temp. |
-40°C to +70°C |
| Dimensions |
2.2 × 40.5 × 40 cm |
| Weight |
1.98 kg |
| HS Code |
8537101190 |
| Condition |
Brand New |
| Lead Time |
In Stock |
| Minimum Order |
1 Unit |
| Origin |
USA |
Applications & Compatibility
The 3721 integrates with Tricon controllers and supports:
-
Temperature and pressure monitoring
-
Flow measurement in hazardous zones
-
MODBUS-based control systems
-
Safety Instrumented Systems (SIS) requiring SIL3 compliance
