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The ABB 266HSH (MSBA1 EZTB configuration) is a high-static-pressure differential pressure transmitter from ABB’s 266 Series, designed for precise, reliable measurement under extreme process conditions. It incorporates ABB’s advanced digital capacitive sensor technology, offering excellent accuracy, repeatability, and long-term stability for applications in oil & gas, petrochemical, power generation, and other high-pressure industrial environments.
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Specifications General Type: Differential Pressure Transmitter Series: ABB 266 HSH (High Static Pressure) Output: 4–20 mA, two-wire with HART communication Sensor Technology: Digital capacitive sensor with temperature compensation Measurement Performance Reference Accuracy: ±0.04% of span (depending on range) Repeatability: ±0.02% of span Turn-Down Ratio: Up to 100:1 Response Time: <100 ms (configurable damping available) Long-Term Stability: ±0.1% of URL over 10 years Pressure Ratings Differential Pressure Range: As per MSBA1 sensor selection Static Pressure Rating: Up to 105 MPa (1050 bar) Proof Pressure: 1.5 × static rating Overpressure Protection: Integrated mechanical overload system Materials & Construction Wetted Materials: Stainless steel / Hastelloy / optional alloys (per MSBA1 selection) Fill Fluid: Silicone or inert fluid Housing: Aluminum or stainless steel (EZTB configuration) Process Connections: High-pressure flanges or threaded adapters Electrical & Communication Power Supply: 10.5–45 VDC Output Signal: 4–20 mA + HART Load Resistance (HART): ≤600 Ω Local Configuration: Optional push-button or LCD interface Environmental Conditions Electronics Operating Temperature: –40 to +85 °C Process Temperature: According to fill fluid and sensor materials Humidity: 0–100% RH, non-condensing Ingress Protection: IP67 / IP68 depending on housing selection Vibration Resistance: 10 g, 10–2000 Hz Certifications / Compliance Explosion Protection: Ex ia / Ex d / Ex nA (per configuration) Standards Compliance: ATEX, IECEx, PED, CE EMC / Surge Protection: Industrial-grade standards
