ABB 266DSHMSSA2S7 DP Transmitter

Feature & Principle

It is ABB 266DSH high-performance smart differential pressure transmitter. It uses capacitive sensing element to detect the pressure difference between high and low pressure sides, converts the tiny capacitance change signal into standard 4-20mA analog plus HART digital signal. It supports TTG through-glass local operation without opening the cover, built-in impulse line clogging diagnosis function for predictive maintenance. It supports square root output for flow calculation, with excellent long-term stability, suitable for closed tank liquid level, orifice plate flow and pipeline differential pressure monitoring.

Specifications

Model: 266DSHMSSA2S7 Brand: ABB Series: 2600T 266DSH Communication: 4-20mA + HART Basic accuracy: ±0.06% Wetted material: 316L stainless steel diaphragm Protection class: IP66 / NEMA4X Safety certification: SIL2 (single), SIL3 (redundant) Diagnosis: Impulse line plug detection Display: Local LCD display Mounting: Integral coplanar flange, bracket optional Application: Petrochemical, refining, power plant, chemical plant flow and liquid level control loop Certification: ATEX, IECEx, PED Cat III

Components & Diagnostics

Capacitance sensor module, electronic transmitter assembly, LCD display, coplanar flange base, sealing gasket. Common faults: signal drift, no current output, HART communication failure, diaphragm corrosion damage, impulse blockage false alarm.

Product Brief

266DSHMSSA2S7 differential pressure transmitter, ABB 2600T series process instrument spare widely used for orifice flow and tank level measurement overhaul and replacement.