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Genuine Durable Car Component SRD991-BHNS7ED4NR-V01 - High Quality

The SRD991-BHNS7ED4NR-V01 is a high-performance, single-acting intelligent digital valve positioner designed for precise control of pneumatic valve actuators. It utilizes 4–20 mA HART 7 two-wire loop-powered communication, enabling bidirectional digital data exchange for remote configuration, real-time monitoring, and advanced valve diagnostics.

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Specifications Supply Air Pressure: 1.4–6.0 bar (20–90 psig), max 7 bar Input Signal: 4–20 mA DC (HART 7.0, two-wire loop powered) Supply Voltage: 10–30 V DC 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: ≤ 400 Nl/h (14.1 scfh) at 6 bar Auto-Calibration & Self-Tuning: Yes Diagnostics: Comprehensive self-diagnostics, VALcare™ predictive maintenance Housing: Die-cast aluminum, IP66 / NEMA 4X Weight: Approx. 1.7 kg (3.7 lbs) Operating Temp: -40°C to +80°C (-40°F to +176°F) Protection: IP66, NEMA 4X 3. Safety & Certifications Explosion Protection: ATEX/IECEx II 2G Ex ib IIC T4 Gb (Increased 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