Specifications
General
Type: Differential Pressure Transmitter
Series: ABB 266 DSH (High Static Pressure Differential Model)
Output: 4–20 mA with HART communication
Sensor Type: Digital capacitive differential sensor
Configuration Code: HSSA2B7LSTB
Measurement Performance
Reference Accuracy: Up to ±0.04% of span (depending on calibration)
Long-Term Stability: ±0.1% of URL for up to 10 years
Turn-Down Ratio: Up to 100:1 (application dependent)
Response Time: Fast dynamic response suitable for flow monitoring
Pressure Ratings
Differential Pressure Range: As per DSH high-static sensor selection
Static Pressure Limit: Up to 41 MPa / 6000 psi (DSH high-static variant)
Overpressure Protection: Integrated mechanical overpressure system
Materials
Wetted Parts: Stainless steel (per “HSSA…” code)
Fill Fluid: Silicone oil
Sensor Body: High-strength stainless steel
Housing: Aluminum housing with protective coating
Process & Mechanical
Process Connections: Standard 266 DP/DS manifold-style connections
Mounting: Compatible with ABB 266 bracket and manifold systems
Environmental Protection: IP66 / IP67 depending on electrical entry
Electrical & Communication
Communication Protocol: HART 7
Power Supply: 10.5–45 VDC depending on loop load
Electrical Entry: As defined by “B7LSTB” configuration
Zero/Span Adjustment: Via HART or local interface (if equipped)
Environmental Conditions
Ambient Temperature: –40 °C to +85 °C (electronics)
Process Temperature: According to fill-fluid limitations
EMI / RFI Immunity: Industrial-grade protection
Certifications / Options
Surge protection
Harsh-environment enclosure options
Industry-standard approvals depending on configuration
The ABB 266DSH (model: HSSA2B7LSTB) is a high-performance differential pressure transmitter engineered for precise and reliable measurement in industrial process applications. As part of ABB’s advanced 266 series, the 266DSH variant features a high static-pressure design, delivering excellent accuracy, long-term stability, and robust protection against harsh operating conditions.