Overview
The Triconex 3703E is a 16-channel isolated analog input module designed for TMR (Triple Modular Redundant) safety and control systems. It supports both voltage and current input signals with high accuracy, fast update rates, and strong isolation, making it suitable for critical industrial applications that demand reliable signal acquisition and fault tolerance.
Key Features
- 16 isolated differential inputs ensure signal integrity in harsh environments.
- Voltage ranges 0–5 V or 0–10 V selectable via TriStation software.
- Resolution of 12 bits delivers precise data conversion for accurate process control.
- Fast 50 ms update rate provides responsive monitoring for safety-critical processes.
- TMR architecture guarantees reliability and fault detection with diagnostic indicators.
Technical Specifications
| Category | Specification |
|---|---|
| Model Number | 3703E |
| Manufacturer | Triconex |
| Type | TMR (Triple Modular Redundant) |
| Input Channels | 16, differential, isolated |
| Voltage Range | 0–5 V or 0–10 V (±6%) |
| Current Range | 0–20 mA (250 Ω shunt for 5 V, 500 Ω for 10 V) |
| Resolution | 12 bits |
| Accuracy | <0.15% of FSR (0°C to 60°C) |
| Update Rate | 50 ms |
| Input Resistance (Load) | ≥30 MΩ DC |
| Power-Off Resistance | ≥30 MΩ DC |
| Input Overrange Protection | 150 VDC / 115 VAC continuous |
Electrical Characteristics
| Parameter | Specification |
|---|---|
| Common Mode Rejection | -90 dB @ 60 Hz (min.), -100 dB @ DC (min.) |
| Common Mode Range | ±200 V peak |
| Leg-to-Leg Isolation | 20 kΩ typical |
| Normal Mode Rejection | -3 dB @ 8 Hz, -17 dB @ 60 Hz, -23 dB @ 120 Hz |
Diagnostics & Indicators
- Module Status LEDs: PASS, FAULT, ACTIVE
- Color Code: Mustard Yellow
- Configuration: Voltage range set through TriStation software
Application Insights
The Triconex 3703E is widely applied in safety instrumented systems, power plants, petrochemical facilities, and critical process automation environments. With robust isolation, excellent noise rejection, and built-in fault detection, the 3703E ensures accurate analog signal acquisition even in electrically noisy or hazardous industrial conditions.
Details
| Weight | 3.5 kg |
|---|---|
| Dimensions | 408 × 40 × 22 mm |
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