Specifications General Type: Differential Pressure Transmitter Series: ABB 266 Series Model: 266DSH – High Static Pressure DP Transmitter Output signal: 4–20 mA, two-wire with HART protocol Measurement Performance Measured variable: Differential pressure (DP) Upper Range Limit (URL): Up to 10 MPa (depending on selected sensor code) Turn-down capability: Up to 100:1 Reference accuracy: ±0.04% of URL Repeatability: ±0.02% of URL Long-term stability: ±0.1% URL over 10 years Damping: Adjustable (0 to several seconds) Response time: < 100 ms (depending on configuration) Pressure Limits Static pressure rating: Up to 41 MPa (410 bar) Proof pressure: 1.5 × static pressure rating Overpressure protection: Integrated mechanical overload system Environmental Conditions Electronics operating temperature: –40 to +85 °C Process temperature: Depends on diaphragm material and fill fluid Humidity: 0–100% RH, non-condensing Ingress protection: IP67 or IP68 (depending on housing option) Vibration resistance: Up to 10 g, 10–2000 Hz Electrical Characteristics Power supply: 10.5–45 VDC Load (HART): Max. 600 Ω Signal: 4–20 mA + HART digital Polarity protection: Built-in EMC compliance: Conforms to IEC/EN industrial EMC standards Mechanical / Materials Wetted materials: Stainless steel, Hastelloy, or optional alloys (based on BHA1B7 selection) Process connections: DP flanges or threaded high-pressure adapters Fill fluid: Silicone oil or inert fluid (per code BHA1B7) Housing: Aluminum or stainless steel (as specified in LSB1TB) Mounting: Direct mount or bracket installations Display & Local Interface Local display: Optional LCD with bar-graph and alphanumeric readout Local configuration: Two push-button interface Remote configuration: Via HART communicator or DTM/EDD tools Certifications Explosion protection: Options include Ex ia, Ex d, Ex nA (depending on device code) Compliance: ATEX, IECEx, PED, CE Ingress protection: IP67 / IP68 depending on terminal and housing type