3720 Triconex DCS digital output module NEW BRAND

• Brand
  Triconex
• Model
  3720
• Product Name
  64-Point TMR Analog Input Module
• Weight
  0.8 kg
• Dimensions
  160 mm x 100 mm x 50 mm
• Original
  United States
• Customs HS
  85389091
• Operating temperature
  0°C to 60°C
• Storage temperature
  -40°C to 85°C
• Warranty
  12 month

Triconex 3720 Analog Input Module Product Introduction

Input

Input Type: 64 single-ended analog input channels

Input Signal Ranges: 0–5 VDC, -5–+5 VDC, 0–20 mA (with 250Ω shunt resistor)

Resolution: Programmable 12-bit or 14-bit

Accuracy: <0.15% full scale range (FSR) at 0°C–60°C

Input Impedance: 10 MΩ minimum (DC)

Update Rate: 10 ms scan rate for all 64 channels

Isolation: 1500 VDC channel-to-channel and channel-to-backplane

Overrange Protection: 150 VDC/115 VAC continuous protection

Output

This module is an analog input-only module with no output channels.

Power Requirements

Power Input: Backplane-powered from Tricon chassis (24 VDC nominal)

Power Consumption: Approximately 8 W

Core Functions

1.Acquires and processes analog signals from field sensors including thermocouples, RTDs, pressure transmitters, and flow meters.

2.Converts analog signals to high-resolution digital data for Tricon safety system processing.

3.Performs real-time TMR voting to ensure accurate, fault-free signal data.

4.Provides comprehensive fault diagnostics for field wiring and module health.

5.Supports sequence-of-events (SOE) logging with high-resolution time stamping.

6.Seamlessly integrates with Tricon v9–v11 safety system platforms.

Key Features

1.Programmable Resolution: Switch between 12-bit and 14-bit resolution to balance speed and precision.

2.Full Electrical Isolation: Prevents ground loops and electrical disturbances from affecting signal integrity.

3.Overvoltage & Overcurrent Protection: Safeguards module and field devices from electrical anomalies.

4.MTBF > 2,000,000 Hours: Exceptional mean time between failures for maximum operational reliability.

5.Industry Approvals: SIL 3, ATEX, FM, CE, and cUL certifications.

6.Noise Rejection: Superior filtering for stable operation in electrically noisy environments.

Application Cases

1.Oil & Gas Refineries: Monitors temperature, pressure, and flow in catalytic cracking and hydrocracking units; triggers safety shutdowns during abnormal conditions.

2.Petrochemical Plants: Integrates with reactor control systems to monitor chemical reaction parameters and activate safety interlocks.

3.Power Generation: Monitors steam turbine vibration, temperature, and feedwater flow for emergency protection systems.

4.Offshore Platforms: Operates in high humidity and salt spray to monitor wellhead pressure, pipeline flow, and fire suppression systems.

5.Chemical Processing: Manages safety monitoring for polymer reactors, hazardous material storage, and toxic gas detection.

6.Nuclear Facilities: Supports non-reactor safety systems requiring SIL 3 reliability for coolant flow and radiation monitoring.

Key Advantages

1.TMR Architecture: Triple redundant signal processing with 2oo3 voting eliminates single-point failures, ensuring 99.999% system availability.

2.SIL 3 Certification: Complies with IEC 61508 SIL 3 standards for critical safety applications.

3.High Channel Density: 64 input channels reduce cabinet space requirements and overall system cost.

4.Advanced Diagnostics: Continuous self-testing detects open circuits, short circuits, and internal faults with real-time LED indicators.

5.Hot-Swappable: Online replacement without system shutdown minimizes downtime.

6.Harsh Environment Rating: Operates reliably in extreme temperatures, high vibration, and electromagnetic interference.