266DSH differential-pressure transmitter: configuration decoding and loop fit
The listed code belongs to ABB’s 266DSH differential-pressure transmitter family. The code contains option positions for sensor span, application, wetted materials, process connection and communication. Because the complete range and option interpretation require the matching ABB ordering table and nameplate, this page does not assign a calibrated span or process limit to the suffix string alone. Confirm the actual configuration before designing a loop or ordering a replacement.
Key technical data
| Technical item | Verified value / selection note |
|---|---|
| Complete designation | 266DSH.H.S.S.A.2.A.1.L1.B1.I1.C1 |
| Family | ABB 266DSH differential-pressure transmitter |
| Measurement type | Differential pressure; verify application and static-pressure option |
| Base accuracy | 266DSH family data lists 0.06%; exact performance depends on range and conditions |
| Calibrated range | Not decoded from this abbreviated order string; use nameplate/configuration record |
| Wetted materials and connection | Confirm from every code position and the original order record |
| Output/protocol | Verify fitted HART, fieldbus or WirelessHART variant from nameplate |
| Process limits | Confirm static pressure, overpressure, temperature and seal/manifold ratings |
The values above are intended to identify the listed version and support an initial technical review. Confirm applicable standards, rating conditions, installed accessories and the current ABB documentation for the serial number or revision before design approval, replacement or commissioning.
Application and engineering focus
Differential-pressure service can measure flow, level or filter pressure drop, but each application imposes different installation and range requirements. Select a span that covers the operating envelope while preserving accuracy at normal conditions. Review static line pressure independently from differential span. For level service, include liquid density, vessel geometry, tap elevation and seal or impulse-line effects in the engineering calculation.
Configuration, compatibility and related references
Verify the high- and low-pressure ports, process connection, diaphragm material, fill fluid, gasket, bolt material and hazardous-area approvals against the order record. Confirm output protocol and loop supply or segment design. Never infer materials or maximum working pressure from a nearby 266DSH code. For replacement, compare the full nameplate, serial number and configuration certificate and have ABB or the responsible instrument engineer decode any ambiguity.
The related designations below are comparison references, not automatic substitutes. Confirm the complete type code, order number, interface, ratings and revision against the approved application before selecting an alternative.
- 266DSH.H.S.S.A.1.B.1...L1...B2
- 266DSHFASKB2A1E6L1B2I1C5C1H3
- 266DSH-E-S-K-A-2-T-1-E1-L1-B2-H4
- 266DSH-E-S-K-A-3-A-1-V3-E8-L1-B2-I2-H3
- 266DSH-E-S-S-A-1-A-8-L1-B2-S2-I2
- 266DSH-F-S-K-A-2-B-1-E1-L1-B2-H4
- 266DSH-F-S-S-B-1-B-7-E1-LS-R1-B1-I2
- 266DSH-FSSA1A3 /EY/L1/B1/M5/I1/C1
- 266DSH-FSSA1B1/L1
- 266DSH-FSSA2B1/L1/B2/M5/I1/H3+SR20195
- 266DSH-H-S-S-A-1-B-H
- 266DSH-M-H-K-B-1-T-1-E1-L1-B2-H4
- 266DSH-M.S.S.A.2.A.7-LS.R1.B2
- 266DSH.H.S.S.A.2.S.8-.V1.L1.B2.M5.I2.C5.C6
- 266DSH.A.S.H.A.4.A.1-V1.B1.I2.C1
- 266DSH.A.S.K.B.3.A.1-V1.L1.В2.12
- 266DSH.B.P.H.A.2.A.1.L1
- 266DSH.B.P.H.A.2.B.8-EY.L1.B1.I1.H3
- 266DSH.B.P.K.A.2.A.1-L1.В2.I2
- 266DSH.B.P.K.A.2.A.1-L11.В2.I2
- 266DSH.B.S.H.A.2.B.7-LS.R1.B2.T4.I3.H3.A1 +M26.D.A.S.5.V.S.P.P.F.1 .6.S.N.2 + SR18254
- 266DSH.B.S.K.T.3.B.7.E1.LS.R1.S2.I2
- 266DSH.B.S.S.A.2.A.1.V1.L1.B1.C1.H1
- 266DSH.B.S.S.A.2.A.7.V1.E1.L5.C1
- 266DSH.E.S.A.A.2.A.1.V1.B1.C1.H1
- 266DSH.E.S.A.A.2.A.1.V1.B1.M5.P1.C1.H1
- 266DSH.E.S.S.A.1.A.7-EZ.LS
- 266DSH.E.S.S.A.1.S.7.V1.B2.C1
- 266DSH.E.S.S.A.2.A.1-L1.B2.12
- 266DSH.E.S.S.A.2.A.1-L1.B2.I2
- 266DSH.E.S.S.A.2.A.1.V1.L1.B1.C1.H1
- 266DSH.E.S.S.A.2.A.7.V1.E1.L5.C1
- 266DSH.E.S.S.A.2.B.8-EY.L1.B1.I1.H3
- 266DSH.F.S.K.D.4.S.1.E6.L1.B2.C1.H3
- 266DSH.F.S.K.D.8.S.1.V4.E2.L1.B5.I2.C1.CT.H3
- 266DSH.F.S.M.A.2.B.8-EY.L1.B1.I1.H3
- 266DSH.F.S.S.A.1.S.2.V1.B2.C1
- 266DSH.F.S.S.A.2.A.7..V1.L9.R1..I3.H3
- 266DSH.F.S.S.A.2.A.7.V1.L9.R1.I3.H3.SR15104
- 266DSH.F.S.S.A.2.A.7.V1.E1.L5.C1
- 266DSH.F.S.S.A.2.B.3-EY.L1.B1.I1.H3
- 266DSH.F.S.S.A.2.B.8-EY.L1.B1.I1.H3
- 266DSH.F.S.S.A.2.S.7.LS.B2.I2.H3
- 266DSH.F.S.S.A1.S.7.V1.B2.C1
- 266DSH.F.S.S.B.2.A.7
- 266DSH.G.S.S.A.1.E2.L1.B2.I2.C5
- 266DSH.G.S.S.A.2.A.7.V1.E1.L5.C1
- 266DSH.H.S.A.A.2.A.1-L1.P1.C1
- 266DSH.H.S.K.A.2.B.1.V1.E1.L1.B2.C1.H3.S2.I2
- 266DSH.H.S.K.B.2.B.1-EN.L1.B
- 266DSH.H.S.S.A.2.A.1.V1.L5.B2.T3.I2.N6.C1
- 266DSH.H.S.S.A.2.B.3-EY.L1.B1.I1.H3
- 266DSH.H.S.S.A.2.B.7-D2.LS.R1.B2.T4.I3.H3.A1+ M26.D.A.S.5.V.S.G.G.F.1 .6.S.N.2 + SR18254
- 266DSH.H.S.S.A.2.B.7-LS.R1.B2.T4.I3.H3.A1+ M26.D.A.S.5.V.S.P.P.F.1 .6.S.N.2 + SR18254
- 266DSH.H.S.S.A.2.B.7.D2.LS.R1.B2.T4.I3.H3.A1+M26.D.A.S.5.V.S.P.P.F.1.6.S.N.2 + SR18254
- 266DSH.H.S.S.A.2.B.8-EY.L1.B1.I1.H3
- 266DSH.H.S.S.B.1.T.7.V1.E2.LS.R1.B2.S2.I2
- 266DSH.H.S.S.B.2.A.7
- 266DSH.H.S.S.B.2.B1.V1.L1.B1.I2.C1
- 266DSH.H.S.S.T.1.T.7
- 266DSH.HSK B1 A1 V2 E2 L1 B2 I2 C1
- 266DSH.M.S.K.A.1.A.1.V2.E7.L1.C6.H3
- 266DSH.M.S.K.D.2.T.1
- 266DSH.M.S.S.A.2.B.3-EY.L1.B1.I1.H3
- 266DSH.M.S.S.A.2.S.1.E2.L1.B5.I2
- 266DSH.M.S.S.A.3.B.8-E2.C1
- 266DSH.M.S.S.B.2.A.1-V1.LS.B2
- 266DSH.P.S.S.A.2.A.7-E9.LS.B2.I2
- 266DSH.P.S.S.A.2.B.8-EY.L1.B1.I1.H3
- 266DSH/P/S/K/D/9/T/1/V6/E1/D7/L1/B2
- 266DSHASHA1A1L1TB
- 266DSHBSHA1A7LSTB
- 266DSHBSHA2A1V2E2C1H3
- 266DSHESSB2A1/E6/L1/B2/I2/H3
- 266DSHESST2B8E1L1S2I2C1H3
- 266DSHFHSA1B7LSB21B
- 266DSHFSSA1A7V1L9B2C1
- 266DSHFSSA1A7-EZLS
- 266DSHFSSA1B1
- 266DSHFSSA2A1-V1L1B2
- 266DSHFSSA2A1B1
- 266DSHFSSA2A7/V1/L9/B1
- 266DSHFSSA2B1V1L1B1M4T4
- 266DSHFSSA2T1E1L1B5I2
- 266DSHFSSB1A1-L1B2I2
- 266DSHFSSB1A1B1
- 266DSHFSSB1A7-L9R1B1I2
- 266DSHFSSB2T8-V2E2L1B2I2
- 266DSHGSMA1AHV1E1B1M5T1I1N4
- 266DSHGSSA1A7V1L9B1N5
- 266DSHGSSA2A1
- 266DSHGSSA2A1L1B1I1C1
- 266DSHGSSA2A1V2E2C1H3
- 266DSHHSMA1AHV1E1B1M5T1I1N4
- 266DSHHSSA1A7V1L9B2C1
- 266DSHHSSA2A1V1L1B1
- 266DSHHSSA2A1E6L1B2
- 266DSHHSSA2A1L5B1I2H4
- 266DSHHSSA2B7A1E6LSI3C1H3 + M26DAS5VSPPF16SN2
- 266DSHHSSA2T3/E2/L1/B2/S2/I2/C1/H3/A1
- 266DSHHSSA2T7/E2/LS/B2/I2/C1/H3/A1
- 266DSHHSSA4A1
- 266DSHHSSB2B1/V1/W1/L1/B1/ S2/I2/C1/C5
- 266DSHHSSB2B1/V1/W1/L1/B1/S2/I2/C1/C5
- 266DSHHSST3T8-E2L1I2C1
- 266DSHMPSA2T3/ E2/L1/B2/S2/ I2/C1/H3/A1
- 266DSHMSHT2A1/V2/EN/L1/B2
- 266DSHMSSA1B8EWL1B2I2C1H3
- 266DSHMSSA2A1-V1E9L1B2+S26RA.H.E1.S.F.HM.2.B.J.S.N.N.N+S26RA.L.E1.S.F.HM.2.B.J.S.N.N.N
- 266DSHMSSA2B1V1L1B1T4
- 266DSHPPSA2T7/E2/LS/B2/I2/C1/H3/A1
- 266DSHPSKD9T7V4L1B2
- 266DSHQSKD9T1V4E1L1B5I2C6C5H3
- 266DSHSHA1A7LS
Installation and commissioning checks
Isolate and depressurize the process, equalize the manifold and follow site permit requirements before removal. Check impulse lines, vents, drains, manifold leakage and transmitter orientation. At commissioning, confirm range values, units, zero condition, DCS scaling and alarm limits. Perform a controlled pressure or differential-pressure test and document as-found/as-left data; do not use trim to hide installation or impulse-line faults.
During commissioning, verify the nameplate, configuration, wiring and diagnostics before enabling normal operation. Test the relevant signal path or protection response end to end under controlled conditions. Record settings and as-left measurements, and investigate abnormal values at the sensor, load, wiring or system configuration before replacing components.
Ordering, replacement and application information
For a quotation or replacement review, provide the complete designation 266DSH.H.S.S.A.2.A.1.L1.B1.I1.C1, ABB order code where available, serial or hardware revision, quantity, installation environment, connected equipment, interface requirements and target delivery date. Include a clear rating-label photograph and relevant wiring, loop or panel drawing when possible.
Ask the supplier to confirm the exact configuration, accessories, revision and any approved successor in writing. Do not select solely from a family name or product photograph. For safety, grid-protection, medium-voltage or regulated applications, obtain review by the responsible qualified engineer and follow local codes and the manufacturer’s instructions.
