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Genuine Durable Car Component SRD991-CQNS7EAANY-FF18V01 - High Quality

The SRD991-CQNS7EAANY-FF18V01 is a high-performance, double-acting intelligent digital valve positioner designed for precise control of pneumatic valve actuators. It features FOUNDATION Fieldbus H1 communication (including integrated PID function block, compliant with FISCO) for digital two-way communication and control

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Specifications Supply Air Pressure: 1.4–6.0 bar (20–90 psig), max 7 bar Communication Protocol: FOUNDATION Fieldbus H1 (IEC 61158-2, FISCO) Power Supply: Fieldbus-powered (loop-powered via FF H1) Output Pressure: 0–100% of supply pressure Stroke Range: Linear: 8–120 mm (standard), up to 260 mm (optional) Rotary: 30–95° Accuracy: ±0.1% of span Hysteresis: ≤ 0.3% of span Linearity: < 0.4% of span Response Time: ≤ 1 second Air Consumption (steady state): ≤ 400 Nl/h (14.1 scfh) @ 6 bar (double-acting) Air Output Capacity: 7.5 Nm³/h (265 scfh) @ 6 bar Auto-Calibration & Self-Tuning: Yes Diagnostics: Comprehensive self-diagnostics, VALcare™ predictive maintenance, Partial Stroke Test (PST) Housing: Die-cast aluminum, IP66 / NEMA 4X Weight: Approx. 2.0 kg (4.4 lbs) Operating Temperature: -40°C to +80°C (-40°F to +176°F) Protection: IP66, NEMA 4X 3. Safety & Certifications Explosion Protection: ATEX/IECEx II 2G Ex ia IIC T6 Gb (Intrinsic Safety) Hazardous Area: Zone 1/2 (Gas), Zone 21/22 (Dust) Functional Safety: SIL 2 / SIL 3 capable EMC: IEC 61000-4-2, -3, -4, -5, -6 Standards: IEC 534-6 (NAMUR), VDI/VDE 3845, IEC 61158-2 (Fieldbus)