TRICONEX 3511

Description

1. Product Description

2. Product Parameters

Parameter	Details
Input Channels	8 isolated AC-coupled differential inputs
Frequency Range	1 Hz to 100 kHz (±0.01% accuracy at 1000 Hz–20,000 Hz)
Resolution	16 bits (pulse count resolution: 1 microsecond)
Redundancy	TMR (triple modular redundancy) with automatic fault detection
Safety Integrity Level	SIL 3 (IEC 61508 certified)
Signal Type	Sine, square, or pulse waveforms (10–90% duty cycle)
Power Supply	24V DC ±10% (redundant power input supported)
Operating Temperature	-40°C to +70°C (storage: -40°C to +85°C)
Response Time	≤10 ms for full-scale frequency change
Input Voltage Range	-100 VDC to +100 VDC (common mode); 1.5 V to 200 VDC (normal mode)
Certifications	ATEX, IECEx, and CSA for hazardous environments.

TRICONEX 3511

3. Advantages and Features

• Triple Modular Redundancy (TMR):
  The TRICONEX 3511’s TMR architecture ensures continuous operation by triplicating critical components. If one channel fails, the remaining two continue monitoring, achieving a mean time between failures (MTBF) exceeding 200,000 hours. This design eliminates downtime risks in applications where system failure could lead to severe consequences.
• High Precision and Stability:
  With a 16-bit resolution and ±0.01% accuracy, the module provides precise pulse counting for rotating machinery. In a gas turbine application, this level of precision reduced speed measurement errors by 90%, improving power generation efficiency.
• Real-Time Diagnostics and Fail-Safe Design:
  Built-in health monitoring detects signal anomalies, voltage fluctuations, and temperature extremes in real time. Faults are reported within 10 ms, allowing proactive maintenance and minimizing unplanned shutdowns.
• Rugged Environmental Performance:
  Rated for extreme temperatures (-40°C to +70°C) and resistant to vibration and EMI, the TRICONEX 3511 operates reliably in offshore platforms, refineries, and other harsh industrial settings.

4. Application Areas and Application Cases

• Oil and Gas: Monitors turbine speed in subsea wellheads, controls compressor RPM in refineries, and manages overspeed protection in liquefaction processes.
• Chemical Processing: Tracks agitator rotation in reactors, measures flow rates in batch processes, and ensures safe operation of high-speed centrifuges.
• Power Generation: Enables precise speed control of steam turbines, monitors generator rotation for grid synchronization, and supports condition-based maintenance of rotating equipment.

5. Competition-related Comparison

• Superior Redundancy: TMR architecture offers higher fault tolerance than dual or non-redundant designs, reducing the risk of communication failures.
• Safety Certification: SIL 3 compliance makes it suitable for the most critical safety applications, while many alternatives only meet SIL 2 or lower.
• Environmental Robustness: A wider operating temperature range (-40°C to +70°C) and EMI resistance make it a preferred choice for harsh industrial settings.
• Protocol Flexibility: Supports multiple signal types (sine, square, pulse) and high-frequency inputs (up to 100 kHz), reducing the need for additional hardware conversions.
  

  TRICONEX 3511

6. Selection Suggestions

• Safety Requirements: Choose the TRICONEX 3511 for applications requiring SIL 3 certification, such as ESD, SIS, or fire and gas systems.
• System Compatibility: Ideal for TRICONEX Tricon/Tricon CX systems to leverage seamless integration and advanced diagnostic features.
• Environmental Conditions: If your site has extreme temperatures, high vibration, or EMI, the module’s rugged design ensures reliable performance without additional protective measures.
• Input Needs: With 8 isolated channels, it is ideal for medium-scale systems; consider higher-channel modules for large installations to optimize space and cost.

7. Precautions

• Installation: Power down the system before installing or replacing the module to prevent electrostatic discharge (ESD) damage. Use shielded cables and follow grounding guidelines to minimize EMI.
• Maintenance: Regularly monitor module health via the TRICONEX system interface, checking for abnormal voltage, temperature, or diagnostic alerts. Replace faulty channels promptly to maintain redundancy.
• Firmware Updates: Keep the module’s firmware updated using official tools to ensure access to the latest safety patches and performance optimizations.
• Signal Conditioning: Use signal conditioning modules (e.g., TRICONEX 9753-110) for non-standard input signals to ensure compatibility and accuracy.