3805E
+24 VDC Analog Output · 4-20 mA · 8 Points · 12-bit Resolution
Lifecycle note: Triconex 3805E is an eight-point TMR 4-20 mA analog output module. Confirm loop power, load resistance, common-return wiring, termination and configured output scaling before replacement.
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+86 18020776786Analog Output Module · Tricon Safety Systems
Triconex 3805E is a Analog Output Module engineered for use within Tricon Safety Systems. It supports installed control, safety and maintenance strategies where the exact module or termination identity must remain traceable to the approved system configuration.
Key technical identifiers for engineering review include Module category: TMR Analog Output; Output current range: 4-20 mA, +6% over-range; Output points: 8; Point isolation: No, common return, DC-coupled. These values should be checked against the installed hardware, field interface, project drawings and the current site asset record before replacement. From a system-integrator perspective, compatibility assessment should cover the complete model and hardware revision, chassis or termination arrangement, connector and channel mapping, field voltage or signal requirements, firmware or system release, and the applicable TriStation configuration.
For commissioning and maintenance, follow the approved isolation, inspection and test procedure. Record point checks, diagnostics, wiring condition and observed system response so the replacement decision can be traced to the installed loop or subsystem. For MRO procurement, provide a clear nameplate photo, required quantity, destination, urgency and any revision restrictions. Commercial confirmation should distinguish new, surplus and refurbished condition and should reference the offered serial or nameplate identity.
| Manufacturer | Triconex / Schneider Electric |
|---|---|
| Model | 3805E |
| Module category | TMR Analog Output |
| Output current range | 4-20 mA, +6% over-range |
| Output points | 8 |
| Point isolation | No, common return, DC-coupled |
| Resolution | 12 bit |
| Output accuracy | < 0.25% of FSR, 0-60°C |
| Maximum external loop voltage | +42.5 VDC |
| Nominal external loop voltage | +24 VDC |
| 250 Ω load requirement | > 20 VDC, 1 A minimum supply |
| 500 Ω load requirement | > 25 VDC, 1 A minimum supply |
| 750 Ω load requirement | > 30 VDC, 1 A minimum supply |
| 1000 Ω load requirement | > 35 VDC, 1 A minimum supply |
| Over-range protection | +42.5 VDC continuous |
| Switch time on leg failure | < 10 ms typical |
| Module indications | PASS, FAULT, ACTIVE, LOAD, PWR1, PWR2 |
| Module color code | Pea green |
Tricon is a legacy Triconex automation platform. Confirm the complete installed configuration before replacement or migration.
Use the published load-versus-voltage limits: more loop resistance requires more external voltage. Include field-device burden, cable resistance and supply tolerance while remaining below +42.5 VDC.
The eight outputs are DC-coupled with a common return and are not point-isolated. System drawings must identify return paths and ground references to prevent interaction between loops.
PWR1/PWR2 identify redundant loop-power availability, while LOAD indicates the module cannot drive current on one or more outputs. Correlate these with terminal voltage, commanded value and measured loop current.
It indicates that the module cannot establish the commanded current path; it does not by itself identify whether the cause is wiring, field-device failure, fuse or loop-power loss. Field measurements are still required.
It defines the typical module response when an internal output leg fails. The integrator must confirm that the process and final element tolerate the transition and that application diagnostics respond correctly.
Provide traceable current measurements at several commands on all eight channels, load and loop-voltage conditions, diagnostic status, common-return verification and serial/nameplate photographs.
Preserve channel scaling, failure state, alarm handling, output assignments, ETP wiring, loop supply and load data. Purchasing only by model does not capture the installed control behavior.
No. Similar output ranges do not prove interchangeability. Compare complete model, channel arrangement, load capability, termination, chassis support and approved system documentation.
Verify loop power and returns first, force approved low/mid/high commands, measure every output, test open-loop and power diagnostics, confirm final-element response, then release the loops under site authorization.
Send the model, complete part number, quantity, destination and nameplate photo. We will verify identification details before confirming availability and lead time.
Official PDF extract: Official Triconex Product Specifications — Model 3805E. File size is below 1 MB; verify the exact installed hardware and configuration before use.
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