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266ASTCKBNB1 EYL1

The ABB 266ASTC (model: KBNB1 EYL1) is a differential pressure transmitter from ABB’s 266 series, designed for reliable and precise measurement in industrial process applications. This model combines ABB’s digital sensing technology with advanced electronics to provide high accuracy, long-term stability, and fast response, making it suitable for flow, level, and pressure monitoring in demanding process environments.

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Specifications General Type: Differential Pressure Transmitter Series: ABB 266 ASTC Output: 4–20 mA, two-wire with HART protocol Technology: Digital capacitive sensor with temperature compensation Measurement Performance Reference Accuracy: ±0.04% of span (depending on calibration) Repeatability: ±0.02% of span Turn-Down Ratio: Up to 100:1 Response Time: Typically <100 ms Long-Term Stability: ±0.1% of span over 10 years Pressure Ratings Differential Pressure Range: Configurable according to selected sensor range Static Pressure Limit: As defined by KBNB1 sensor module Overpressure Protection: Integrated mechanical system Mechanical / Materials Wetted Parts: Stainless steel (per KBNB1 selection) Fill Fluid: Silicone or inert oil (depending on configuration) Housing: Aluminum or stainless steel (per EYL1 selection) Process Connections: Standard 266 manifold or threaded connections Electrical Power Supply: 10.5–45 VDC Load Resistance: Up to 600 Ω (HART) Signal: 4–20 mA with HART digital output Local Configuration: Push-button interface if equipped Environmental Conditions Electronics Temperature Range: –40 to +85 °C Process Temperature: According to fill fluid and sensor selection Humidity: 0–100% RH (non-condensing) Ingress Protection: IP66 / IP67 depending on housing and entry options Vibration Resistance: Up to 10 g, 10–2000 Hz Certifications Explosion Protection: Ex ia / Ex d / Ex nA options depending on code Compliance: ATEX, IECEx, PED, CE Surge / EMC Protection: Per industrial standards