Specifications General Type: Differential Pressure Transmitter Series: ABB 266 Series Model: 266DSH – High Static Pressure DP Transmitter Output: 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 range) Turn-down ratio: Up to 100:1 Reference accuracy: ±0.04% URL Repeatability: ±0.02% URL Stability: ±0.1% URL over 10 years Damping: Adjustable from 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 rating Overpressure protection: Integrated mechanical overload system Minimum DP detectability: Based on selected range code Environmental Conditions Electronics operating temperature: –40 to +85 °C Process temperature: According to diaphragm material and fill fluid Ambient humidity: 0–100% RH (non-condensing) Vibration resistance: 10 g, 10–2000 Hz Protection rating: IP67 or IP68 (depending on housing selection) Electrical Characteristics Power supply: 10.5–45 VDC Signal: 4–20 mA + HART Load: Up to 600 Ω for HART Polarity protection: Built-in EMC compliance: Meets IEC/EN industrial EMC standards Mechanical / Materials Wetted materials: Stainless steel / Hastelloy / optional exotic alloys Process connections: Differential pressure flanges or threaded adapters Fill fluid: Silicone oil or inert fill (per ESSB1B1 code) Housing: Aluminum or stainless steel (per model code) Mounting: Direct or bracket-based installation Display & Interface Local display: Optional LCD (V1E and L1 options in code) Local configuration: Two push-button keypad Remote configuration: HART communicator or DTM/EDD software Certifications Explosion protection: Ex ia / Ex d / Ex nA (depending on configuration) Safety standards: ATEX, IECEx, PED, CE Ingress protection: IP67 / IP68 (depending on selected housing and terminals)