ABB 266DSH Differential Pressure Transmitter Inquiry Item

This ABB 266DSH is a high-performance differential pressure transmitter of ABB 2600T series. It measures differential pressure of liquid, gas and steam, and can calculate flow, liquid level and medium density with throttling devices. It supports 4~20mA+HART communication, and optional WirelessHART wireless version. Adopts TTG through-glass operation technology, parameters can be set without opening the cover in explosion-proof hazardous area. It is equipped with built-in impulse line blockage diagnosis function, supporting predictive maintenance. The electronic module can be hot-swapped and automatically configured after replacement. It has SIL2/SIL3 functional safety certification, stable performance for 10 years. Widely used in petrochemical, power, metallurgy and refining process control safety loops.

Specifications

Model: 266DSH Brand: ABB Accuracy: ±0.06% FS (optional ±0.04%) Turndown ratio: 100:1 Communication: 4~20mA+HART / WirelessHART Wetted material: 316L stainless steel diaphragm optional Certifications: CE, ATEX, IECEx, SIL2/SIL3 Protection grade: IP66 Stability: 0.15% URL over 10 years

Components & Troubleshooting

Differential pressure sensing capsule, main electronic board, LCD display module, aluminum explosion-proof housing, three-valve manifold mounting base, terminal wiring chamber. Common faults: pressure reading drift, HART communication offline, impulse pipe blockage alarm, overpressure damage of sensor capsule, display failure.

Disclaimer

This spare part shall be installed, calibrated and maintained by qualified instrument technicians. Avoid overpressure impact during commissioning.