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Yokogawa DM1A‑100D‑1D4G2‑031‑2079/CE
- Product Name: Yokogawa DM1A‑100D‑1D4G2‑031‑2079/CE Digital Positioner / Electro‑Pneumatic Valve Positioner
- Product Series: DM Series Smart Valve Positioner
- Technical Specifications: Input signal: 4–20 mA analog control signal; supply air pressure: standard industrial instrument air; communication protocol: HART (1D4G2 configuration); mechanical variant: 031‑2079 mechanical assembly code; certification: CE European compliance certified model; stroke range: 0–100 mm (100D)
Detailed content
- Functional Features: Converts electrical control signals to pneumatic output for valve actuation; provides precise valve stroke positioning; self‑calibration and auto‑diagnosis functions; supports HART digital communication for parameter configuration and status monitoring
- Performance Parameters: Positioning accuracy: ±0.5% full stroke; hysteresis: ≤0.5% full stroke; operating temperature: −20 °C to +80 °C; air consumption optimized for industrial continuous operation
- Material Composition: Housing: die‑cast aluminum alloy with anti‑corrosion coating; internal pneumatic components: stainless steel and precision plastic; electrical parts: industrial‑grade PCB with surge protection
- Structural Characteristics: Compact integral housing; standard valve mounting interface; built‑in piezoelectric pneumatic pilot valve; HART communication terminal block
- Working Principle: Receives 4–20 mA electrical signal; compares with actual valve stroke feedback signal; adjusts pilot valve air output to actuate control valve; closed‑loop control maintains precise valve position
- Advantages & Highlights: High‑precision positioning; auto‑calibration function reduces maintenance; HART digital communication for remote configuration; CE‑certified European market compliance; robust anti‑vibration performance
- Applicable Industries: Petrochemical processing, oil & gas pipelines, power plant control valves, chemical manufacturing, HVAC systems, water treatment industrial valves
- Installation Requirements: Mount directly on control valve actuator per standardized mounting interface; supply clean, dry instrument air; connect 4–20 mA control signal and HART communication wiring
- Usage Precautions: Ensure instrument air quality free of oil, water, and dust; regular stroke calibration; avoid excessive vibration and high‑temperature radiation exposure
