What the code resolves to on the 266DSH line
The ABB 266DSHHSSB1A1E1L1B1 is built on the 266DSH differential pressure transmitter platform and is configured for S-class application — differential measurement at standard static pressure — with a digital LCD integral display and integrated keypad for local configuration and loop checks. Configuration string decodes as: span limits H covering 1.6 to 160 kPa (16 to 1600 mbar, 6.4 to 642 inH2O), HART plus 4 to 20 mA output with advanced functionality, AISI 316 L stainless process flanges on a horizontal 1/2-14 NPT-f connection, AISI 316 L diaphragm with silicone oil fill, AISI 316 ss bolts with Viton gasket, aluminium alloy barrel housing with 1/2-14 NPT electrical entry, carbon-steel pipe/wall mounting bracket, and ATEX Ex ia intrinsic safety approval.
Span limits and what they govern on the loop
The 1.6 to 160 kPa (16 to 1600 mbar) span window places the unit in the mid-range differential class — useful across filter ΔP, level on closed vessels, and flow on orifice plates where the working differential sits comfortably inside that band. The 6.4 to 642 inH2O equivalent gives the same envelope in imperial units for legacy panel documentation. The 4 to 20 mA plus HART output with advanced functionality means the loop can be commissioned either as a classic analogue channel or as a fully digital multidrop HART segment using the integrated keypad and LCD for local ranging and trim without opening the wiring compartment.
Wetted parts, housing, and the cert that dictates zoning
Wetted-side material set is AISI 316 L stainless on both the diaphragm and the horizontal process flanges, with silicone oil fill and Viton gasket — a conservative media compatibility stack for most process gases, water-based service, and mild chemical duty. The horizontal 1/2-14 NPT-f process connection through adapter is the standard panel-side tap used on impulse lines from the high and low manifolds. The aluminium barrel housing with 1/2-14 NPT electrical entry suits general-purpose indoor panel and field-junction-box mounting; the carbon-steel pipe/wall bracket locates the body on a 2-inch standpipe or a flat surface away from the process piping. ATEX Ex ia intrinsic safety approval restricts the unit to hazardous-area zones where an intrinsically safe barrier on the 4 to 20 mA loop is the protection method — the cert dictates barrier selection and entity parameters, not just the wiring conduit.
Production status and how it is quoted
The part carries a current lifecycle stage on the ABB 266DSH line and is sourced against an 8 to 10 week lead time at the time of quoting. Independent sourcing through non-channel inventory is the practical path where the project schedule cannot absorb an 8 to 10 week factory lead time — each RFQ is reviewed against the BOM line, the specific configuration string, and the end-client's approved-vendor list before a quote is returned.