What the ABB 266DSHHSSA2A1V1L1B1I2 actually measures
The 266DSHHSSA2A1V1L1B1I2 is an ABB differential pressure transmitter built on the 266DSH platform — a 4 to 20 mA plus HART device with advanced diagnostics, sized for spans between 1.6 and 160 kPa (16 to 1600 mbar, 6.4 to 642 in. H2O) and a base accuracy of 0.06%, the figure that decides how tightly it holds a flow, level, or filter-differential reading against the loop reference. That 0.06% base accuracy is the headline number for any DP application — it is what sets the loop's calibration budget on a Venturi, orifice plate, or dp cell, and it is the spec a DCS engineer cross-checks against the flow computer's claimed uncertainty before sign-off.
Wetted parts and process connection
The wetted side is AISI 316L stainless with silicone oil fill (NACE compliant), PTFE gaskets, and AISI 316 bolts — a standard refinery/utility configuration that handles hydrocarbons, steam condensate, and treated water without needing an exotic upgrade. Process flanges and adapters are AISI 316L with 1/4 in.-18 NPT female direct-mount connections on the horizontal axis, and the vent/drain valves are 316L positioned on the process axis (NACE) — so the manifold stack lines up cleanly without forcing a 90° adapter on site.
Housing, display, and panel-side wiring
A digital LCD integral display with integrated keypad is fitted (option), so loop commissioning, ranging, and HART reconfiguration can be done at the instrument without a handheld communicator — useful on a hot platform or a confined boiler-house gallery. A carbon-steel pipe-mounting bracket is included (option), so the body bolts straight to a 2 in. standpipe without a separate saddle fabrication.
Static pressure and tag-plate options
Static pressure class is the standard rating (option S), which covers the typical line pressures seen on utility steam, condensate, and HVAC differential work — no high-static upgrade required for that envelope. Option I2 adds stainless-steel tag and certification plates with laser printing, which is the configuration most plant owners specify for traceable instrument registers and audit-friendly documentation packs.
Sourcing and lead time
The 266DSHHSSA2A1V1L1B1I2 is a current-production configuration of the ABB 2600T family, with ABB-listed availability flowing on a 6-8 week quoted lead time for build-to-order units — meaning the BOM line should be planned against that window rather than treated as shelf stock.