PLCs, Power Supplies & Others

Product Overview

The Triconex 3481 functions as a precision analog output module for Triconex Safety Instrumented Systems. It provides 4 channels of DC-coupled current control for final element positioning. This module ensures accurate and reliable signal generation for demanding process control tasks.

Key Technical Specifications

Engineers depend on this module for its high accuracy and comprehensive diagnostic capabilities. Its robust design maintains performance even in harsh industrial environments. Below, we detail the core technical parameters.

Detailed Features and Benefits

Precise 4-20 mA Control for Critical Loops
The Triconex 3481 delivers accurate current signals with <0.25% FSR accuracy. This precision ensures proper positioning of I/P transducers, control valves, and final elements. Consequently, you achieve tight process control for your most critical safety applications.

Four DC-Coupled Channels with Common Return
Each of the 4 outputs features DC-coupled architecture for reliable signal transmission. The common return configuration simplifies field wiring to multiple final control devices. Therefore, you reduce installation complexity while maintaining signal integrity.

12-Bit Resolution for Smooth Analog Control
With 12-bit resolution, this module provides fine current steps across the full output range. It enables smooth transitions for applications requiring proportional control. As a result, you avoid abrupt movements that could upset sensitive processes.

Forced-Switch Diagnostics for Continuous Monitoring
The 3481 incorporates forced-switch diagnostics to verify output circuit health continuously. It automatically tests critical components without interrupting normal operation. This feature ensures you detect potential failures before they affect process safety.

Robust Loop Protection for Field Reliability
External loop power inputs include reverse voltage protection and 36 VDC over-range tolerance. This protection safeguards the module against wiring errors and transient conditions. Thus, you maintain reliable operation even during field maintenance activities.

Wide Operating Temperature Range
The module functions reliably across 0°C to 70°C ambient temperatures. It suits installation in unconditioned equipment rooms and tropical climates. Therefore, you can deploy it globally without special cooling requirements.

Applications for Critical Analog Control

Safety Valve Positioning
The Triconex 3481 positions emergency shutdown valves requiring analog stroke control. Its high accuracy ensures proper valve positioning for partial stroke testing. You achieve both safety and operational flexibility with this module.

Critical Process Regulation
For applications needing modulating control within safety systems, this module delivers. It drives I/P transducers for pressure and flow control loops. Consequently, you maintain process variables within safe operating envelopes.

Turbine and Compressor Control
The 3481 provides speed and load setpoints for critical rotating equipment. Its precise 4-20 mA signals interface directly with governor and anti-surge controllers. Thus, you protect valuable machinery while optimizing performance.

Details