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266HDHHRMA7+LSTB

The ABB 266HDH HRMA7+LSTB is a high-performance differential pressure transmitter designed for precise and reliable measurement in demanding industrial applications. As part of ABB’s 266HDH series, this transmitter delivers high accuracy, long-term stability, and robust mechanical construction, making it suitable for critical process control applications in liquids, gases, or steam.

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Parameters Category Parameter Specification / Interpretation for 266HDHHRMA7+LSTB General Model Series 2600T Series (PGT - Pressure Gauge/Absolute Transmitter) Type Smart Absolute Pressure Transmitter with Local Operator Interface Output 4-20 mA DC, Two-wire, HART 7 Digital. Measurement Performance Measured Variable Absolute Pressure Calibrated Span (HDHHRMA7) Defined by core code. Example: 0 to 400 kPa abs (4 bar abs). Must be verified from official datasheet. Reference Accuracy ±0.055% to ±0.075% of calibrated span (Typical for this performance grade). Long-Term Stability ±0.1% of URL per year. Options & Features (+LSTB) Local Operator Interface Backlit Graphical LCD Display. Infrared (IR) Push Buttons (for Ex ia certified local operation). Certification Package ATEX / IECEx: Ex d IIC T6 Gb (Flameproof) & Ex ia IIC T6 Ga (Intrinsic Safety) - Dual Certification. Electrical Supply Voltage 10.5 to 45 V DC (Two-wire). Communication HART 7 Protocol. Process Connections & Materials Process Connection 1/2" NPT female or G1/2" (typical). Wetted Parts 316L Stainless Steel (standard). Other alloys (Hastelloy, Monel) available with different suffix. Mechanical & Environmental Housing Stainless Steel, Flameproof (Ex d) enclosure. Protection Degree IP66 / IP67 / NEMA 4X. Process Temperature -40°C to +120°C (standard fill fluid). Ambient Temperature -40°C to +85°C.