A differential-pressure head built for a flow element, not just a gauge
The 266CSH.C.2.K.A.6.J.1-...L5..M1.T1.......U8: Sensor span limits land at 0.2 and 6 kPa (2 and 60 mbar / 0.8 and 24 in H2O) and the maximum working pressure is rated at 0 and 2 MPa (0 and 20 bar / 0 and 290 psi), which puts the device squarely in low-dp service — well below line pressure on most process headers — so the cell is the limiter, not the static pressure rating.
Wetted side keyed to sour and corrosive service
The diaphragm is Hastelloy C-276 with silicone-oil fill and carries the NACE designation, so the sensing face tolerates sour-service exposure that would attack a standard 316L cell; bolts are AISI 316L SST (NACE, non-exposed) and gaskets are Perbunan, which is the standard nitrile choice for hydrocarbon service rather than a high-temperature or steam-rated elastomer.
On-board display and the cable entry that decides the gland
The HMI option on this build is the L5 TTG (Through The Glass) integral digital LCD — configuration through the glass, so the operator does not crack the housing cover to push buttons, which keeps the wet end sealed during a re-range or tag edit on a live line. Wiring enters through a cable gland M20 × 1.5 (U8), which is the metric-threaded European default rather than a ½-inch NPT conduit entry; this matters when the instrument lands in a junction box drilled for metric glands or on a skid where a thread adapter would change the EMC and IP story at the entry. Tag and label language is set to German (T1) at the factory, so the nameplate, keypad menu, and certification line print in German — something to catch before a CE-marked skid ships into an English-speaking site, because the local inspector reads the plate, not the order code.
Lead time and lifecycle read for the BOM line
Estimated lead time is 16–18 weeks, which is the ABB 266 build window — long, but normal for a configured multivariable cell where the diaphragm material, span, and options are picked to order rather than stocked as a catalog SKU. Lifecycle stage is recorded as current, meaning the 266 platform remains on the active build list with no phase-out announcement tied to this order code; for a line-down spare on a sour-service flow element, that reads as 'still sourceable from the factory channel,' subject to the 16–18 week window.