Triconex 3805E 8-Channel TMR Analog Output Module 4-20mA
Introduction:
The Triconex 3805E is a TMR analog output module with 8 channels, 4-20mA current output, 12-bit resolution and reliable performance for industrial automation control loops.
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Product Attributes:
Manufacturer: Triconex
Series: Tricon
Part Number: 3805E
Type: Analog Output Modules
Condition: In Stock
Origin: U.S.A
Shipping Port: Xiamen
Warranty: one year
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Description
Inquiry
The Triconex 3805E is a high-reliability TMR (Triple Modular Redundant) analog output module designed for Tricon safety and control systems. It provides stable and accurate current output signals to drive industrial actuators, valves and other field devices. This module features 8 output points with a 4-20 mA current range, plus a +6% overrange capability for flexible application. Unlike isolated modules, it uses a commoned return and DC coupling, making it suitable for systems where shared return wiring is preferred. With a 12-bit resolution and <0.25% accuracy, it ensures precise control in critical industrial processes. Its pea green color code allows quick identification in control cabinets, while built-in diagnostic indicators simplify maintenance and troubleshooting. The module also offers robust overrange protection and fast leg failure switch time to enhance system reliability.
Technical Specifications
Module Type & Output Configuration
The Triconex 3805E is a TMR (Triple Modular Redundant) analog output module with 8 output points. It uses a commoned return design and is DC-coupled, with no isolated points for the output channels. This configuration is ideal for applications where shared return wiring simplifies installation and reduces cabling costs. The module’s pea green color code helps technicians quickly distinguish it from other Triconex modules in a control cabinet.
Output Range & Resolution
The 3805E provides a 4-20 mA current output range, with a +6% overrange capability for extended flexibility. It features a 12-bit resolution, ensuring precise and consistent output signals for accurate control of field devices. The full-scale range (FSR) for accuracy measurements is 0-21.2 mA, covering the standard 4-20 mA range and the overrange portion.
Accuracy & Operating Temperature
Output accuracy is less than 0.25% of FSR (0-21.2 mA) when operating within the temperature range of 32° to 140° F (0° to 60° C). This high accuracy ensures that the module delivers reliable output signals even in varying industrial temperature conditions, critical for maintaining process stability.
Power Requirements & Load Specifications
The Triconex 3805E requires external loop power that is reverse voltage protected. The maximum external loop power is +42.5 VDC, with a nominal voltage of +24 VDC. The required loop power varies based on the load resistance: 250Ω load needs >20 VDC (1 amp minimum), 500Ω load needs >25 VDC (1 amp minimum), 750Ω load needs >30 VDC (1 amp minimum), and 1000Ω load needs >35 VDC (1 amp minimum).
Protection & Response Time
The module offers continuous overrange protection at +42.5 VDC, safeguarding it from voltage spikes and unexpected overvoltage conditions in field wiring. In the event of a leg failure, the typical switch time is less than 10 ms, ensuring minimal disruption to the control loop and maintaining system integrity.
Diagnostic Indicators & Term Panels
The Triconex 3805E is equipped with six module status indicators: PASS, FAULT, ACTIVE, LOAD, PWR1, and PWR2. These indicators provide real-time feedback on the module’s operation, making it easy to identify faults, power status, and active operation. The module is compatible with Basic Term Panels (model 9853-610F); commoned and non-commoned term panels are not applicable.
Installation Guide
Start the installation by powering down the Triconex chassis to prevent electrical hazards or damage to the module. Align the 3805E module with the correct slot in the chassis and slide it firmly into place until it locks securely. Ensure all connections are tight to avoid poor contact. Connect the external loop power supply (nominal +24 VDC, maximum +42.5 VDC) following the wiring diagram. Wire the 8 output channels to the field devices, noting the commoned return design. For load resistances, ensure the loop power meets the required voltage for the specific load. After wiring, restore power to the chassis and check the diagnostic indicators to confirm the module is operating normally (PASS and ACTIVE lights should be on). Verify output signals through the host system to ensure accurate performance.
Packaging List
The package includes one Triconex 3805E analog output module, a Basic Term Panel (model 9853-610F), and an installation manual. It also contains the necessary mounting hardware for rack installation. All components are packed in anti-static packaging to protect against electrostatic discharge during transit. External loop power supplies, load resistors, and field wiring are not included in the standard package.
Shipping Information
We ship the Triconex 3805E using reliable international carriers: FedEx, UPS, and DHL. All orders are processed promptly to minimize lead time and ensure on-time delivery to any global location. Packages are fully protected against shock, vibration, and electrostatic discharge to prevent damage during shipping. A tracking number is provided once the order is dispatched, allowing you to monitor the shipment’s progress at any time.
Frequently Asked Questions (FAQs)
How many output channels does the Triconex 3805E have?
The Triconex 3805E features 8 analog output channels, all operating in a 4-20 mA current range with a +6% overrange capability. This makes it suitable for controlling multiple field devices in industrial control loops.
Are the output points of the 3805E isolated?
No, the Triconex 3805E does not have isolated output points. It uses a commoned return design and is DC-coupled, which simplifies wiring by sharing the return path across all 8 output channels.
What is the accuracy of the Triconex 3805E?
The 3805E has an output accuracy of less than 0.25% of FSR (0-21.2 mA) when operating between 32° to 140° F (0° to 60° C). This high accuracy ensures precise control of field devices in critical industrial applications.
What loop power is required for different load resistances?
Loop power requirements vary by load: 250Ω needs >20 VDC (1A min), 500Ω needs >25 VDC (1A min), 750Ω needs >30 VDC (1A min), and 1000Ω needs >35 VDC (1A min). Nominal external loop power is +24 VDC.
What diagnostic indicators does the 3805E have?
The Triconex 3805E has six status indicators: PASS, FAULT, ACTIVE, LOAD, PWR1, and PWR2. These lights provide clear feedback on module health, power status, and operational activity for easy troubleshooting.
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