Model Interpretation

3805E

3805E: Enhanced Analog Output Module (TMR, 8‑ch)

Common P/N: 3000316‑110

Family: 3805 (standard AO), 3805E (enhanced diagnostics/accuracy)

Compatibility: Tricon v9–v11 chassis (8110/8111/8112), TMR safety systems

Technical Parameters

Electrical

Channels: 8 isolated analog outputs (common return, DC‑coupled)

Output Ranges: 4–20mA (default, +6% overrange to 22mA); 0–20mA; 0–5V; 0–10V (per‑channel configurable)

Resolution: 12‑bit

Accuracy: <0.25% FSR (4–20mA, 0–60°C); typical ±0.1% FSR

Response Time: ≤2ms (full‑scale step)

Loop Power: Nominal +24VDC (max +42.5VDC, reverse‑voltage protected)

Isolation: 2500Vrms channel‑to‑backplane

Redundancy: TMR 2oo3 voting (three independent legs)

Mechanical

Dimensions (W×H×D): 483 × 25.4 × 453 mm (19” rack, 1 slot)

Weight: 3.65 kg

Mounting: Plug‑in backplane, hot‑swappable

Environmental

Operating Temp: 0°C to +60°C (32°F to 140°F)

Storage Temp: −40°C to +85°C

Humidity: 5%–95% RH, non‑condensing

Certifications: SIL3 (IEC 61508), TÜV, UL, ATEX/IECEx

Diagnostics & Indicators

LEDs: PASS, FAULT, ALARM (module + per channel)

Monitoring: Continuous loop current/voltage comparison; open/short‑circuit detection; overrange/underrange alarms

Protection: Overvoltage, overcurrent, short‑circuit, overtemperature

Core Functions

TMR Safety & Accuracy: 2oo3 voting maintains control if one leg fails; 12‑bit resolution + <0.25% FSR accuracy for critical loops。

Flexible Analog Output: Configurable 4–20mA/0–10V ranges to suit valves, actuators, and I/P converters。

Hot‑Swap & Redundancy: Online replacement without shutdown; compatible with redundant I/O architectures。

Enhanced Diagnostics: Real‑time loop health monitoring with fault logging and SOE (sequence of events) reporting。

Applications

Oil & Gas: ESD/F&GS valve control, pipeline pressure regulation, burner management。

Power Generation: Turbine/generator actuator control, boiler feedwater valve modulation, SIL3 interlocks。

Chemical/Refining: Reactor temperature/pressure control, distillation column valve positioning。

Industrial Automation: Critical process control loops requiring SIL3 compliance and high accuracy。