Overview
The Triconex 3721 TMR Analog Input Module provides precise and reliable signal acquisition for safety-critical systems using triple modular redundancy. Moreover, its advanced diagnostics ensure continuous operation under fault conditions, making it suitable for demanding industrial environments.
Key Benefits
- Triple Modular Redundancy (TMR): Processes input signals across three processors and votes through redundant circuitry for maximum reliability.
- High Accuracy and Resolution: Offers 12- or 14-bit programmable resolution with less than 0.15% full-scale error between 0°C and 60°C.
- Input Overrange Protection: Safeguards the module against 150 VDC or 115 VAC continuous overvoltage conditions.
- Isolated Input Points: Each of the 32 differential points is fully isolated to minimize interference and enhance safety.
Technical Specifications
| Feature | Specification |
|---|---|
| Model Number | 3721 |
| Type | TMR Analog Input |
| Voltage Range | 0–5 VDC or ±5 VDC (programmable) |
| Input Points | 32 differential, DC-coupled |
| Input Update Rate | 10 ms |
| Resolution | 12 or 14 bits (programmable) |
| Accuracy | <0.15% FSR (0°C–60°C) |
| Input Resistance | 10 MΩ minimum (DC) |
| Power-Off Resistance | 140 KΩ typical |
| Common Mode Rejection | -85 dB (DC–100 Hz) |
| Common Mode Range | -12 V to +12 V peak |
| Leg-to-Leg Isolation | 420 KΩ typical |
| Normal Mode Rejection | -3 dB @23 Hz, -8 dB @60 Hz, -14 dB @120 Hz |
| Current Range | 0–20 mA (requires 250 Ω shunt resistor) |
| Diagnostic Indicators | PASS, FAULT, ACTIVE, FIELD |
| Color Code | Yellow |
System Integration
The 3721 module integrates seamlessly with Tricon backplanes using TriStation software for voltage range selection. In addition, its isolated inputs and high common-mode rejection support accurate data acquisition in industrial applications such as chemical processing, oil and gas, and power generation systems.
FAQ
Q1: Is the Triconex 3721 module brand new and in stock?
Yes, it is brand new, original, in stock, and ships within 3 days–2 weeks depending on order quantity.
Q2: What shipping options are available for the 3721 module?
We offer DHL, FedEx, and UPS for fast, reliable delivery worldwide.
Q3: Can the module handle input overvoltages safely?
Yes, the 3721 module features input overrange protection up to 150 VDC or 115 VAC, ensuring safe operation.
Details
| Weight | 1.36 kg |
|---|
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