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Genuine Durable Car Component SRD991-CHFS7ZZZNY-V01 - High Quality

The SRD991-CHFS7ZZZNY-V01 is a high-performance, double-acting intelligent digital valve positioner for precise control of pneumatic valve actuators. It features HART communication (4–20 mA analog + HART two-wire loop-powered) and is equipped with additional I/O: 4–20 mA position feedback and one binary alarm output. This model has no built-in limit switches, no explosion-proof certification (non-Ex), and uses a M20 x 1.5 cable entry.

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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 (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 (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 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: Non-Ex (ZZZ) — Not certified for hazardous areas Functional Safety: SIL 2 / SIL 3 capable EMC: IEC 61000-4-2, -3, -4, -5, -6 Standards: IEC 534-6 (NAMUR), VDI/VDE 3845