TRICONEX
154 in stock
Triconex 3721N Analog Input Module
Triconex 3721N Analog Input Module
Manufacturer: TRICONEX
Product No.: 3721N
Product Type: Analog Input Module
Product Origin: USA
Payment: T/T
Weight: 1400g
Shipping port: Xiamen
Warranty: 12 months
Product Description
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The Triconex 3721N Analog Input Module is a high-integrity, high-performance analog input module designed for use in Triconex safety-instrumented systems (SIS).
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It acquires multiple analog signals with high accuracy and reliability, supporting critical applications such as oil & gas, petrochemical, power generation, and other process industries.
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Utilizes Triple Modular Redundancy (TMR) architecture to ensure fault tolerance and continuous system operation.
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Features built-in diagnostics and hot-swap capability, allowing replacement without system shutdown.
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Certified to SIL 3 and IEC 61508 standards, suitable for safety-critical environments.
Technical Specifications
| Parameter | Specification |
|---|---|
| Input Channels | 32 differential, DC-coupled |
| Input Voltage Range | 0 to 5 VDC or ±5 VDC (±6 %) |
| Resolution | Programmable: 12-bit or 14-bit |
| Input Update Rate | 10 ms |
| Accuracy | < 0.15 % of Full-Scale Range (0 °C to 60 °C) |
| Common-Mode Rejection (CMRR) | –85 dB (DC to 100 Hz) |
| Input Over-Range Protection | 150 VDC / 115 VAC continuous |
| Isolation | High isolation between channels and system |
| Operating Temperature Range | –20 °C to +60 °C |
| Weight | 1.4 kg |
| Dimensions | 185 × 135 × 45 mm (typical) |
| Certifications | SIL 3, IEC 61508 compliant |
Key Features & Advantages
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Fault-Tolerant Design: Triple Modular Redundancy maintains data integrity even with hardware faults.
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Hot-Swappable: Modules can be replaced without interrupting operations.
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High Precision: Tight accuracy, high resolution, and strong common-mode rejection for dependable measurements.
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Robust Safety Compliance: Meets stringent safety and reliability standards for critical industrial processes.
