The 3805E Analog Output Module from Triconex is an 8‑point, high‑integrity output module designed for use in Triple Modular Redundant (TMR) safety systems. It delivers 4–20 mA analog signals with a built‑in +6% overrange capability, ensuring precise and reliable output for critical process control applications.
Technical Specifications
Parameter
Description
Model Number
3805E
Product Type
Analog Output Module
Architecture
Triple Modular Redundant (TMR)
Output Channels
8
Output Range
4–20 mA (+6% overrange)
Resolution
12 bits
Output Accuracy
Channel Isolation
No; commoned return, DC‑coupled
Over‑Range Protection
+42.5 VDC continuous
Leg Failure Switch Time
Module Color
Pea Green
Module Weight
4 kg
Dimensions
9 kg (manufacturer‑listed dimensional class)
Shipping Weight
10 kg
Application Scenarios
The 3805E is ideal for:
Analog control of valves, actuators, and positioners
Safety‑critical analog output loops in TMR systems
Process industries requiring SIL3‑certified output modules
High‑availability control architectures with fast failover response
FAQ
Q: Are the output channels isolated from each other No. All channels share a common return and are DC‑coupled.
Q: What happens if one TMR leg fails The module switches to the remaining legs in <10 ms, maintaining output continuity.
Q: Can the module drive standard 4–20 mA field devices Yes. It is designed specifically for industrial analog current loops.
