266HRHMRRA1E2L1B7I2C5H3: 266HRH high-overload transmitter: remote-seal installation and pressure range checks
The ABB 266HRH is a high-overload gauge-pressure transmitter configured with a remote diaphragm seal. ABB lists a family span range from 1.1 to 60,000 kPa and accuracy from ±0.06%; high working-pressure capability is configuration dependent. The representative designation shown here must be checked against the actual seal, sensor and process connection before specifying a replacement.
Key technical data
| Technical item | Verified value / selection note |
|---|---|
| Representative designation | 266HRHMRRA1E2L1B7I2C5H3 |
| Measurement | Gauge pressure through remote diaphragm seal |
| Family span limits | 1.1 to 60,000 kPa; sensor code and seal assembly determine limits |
| Base accuracy | From ±0.06% family reference |
| Maximum working pressure | Up to 105 MPa for the family; verify exact transmitter and seal assembly |
| Output protocols | HART, PROFIBUS PA, FOUNDATION Fieldbus and WirelessHART family options |
| Seal selection | Fill fluid, diaphragm, capillary and mounting are configuration-specific |
The table summarizes family or catalog values for identification and initial selection. Confirm the nameplate, environmental limits, standards, revision and options for the exact device before procurement or engineering approval.
Application and system selection
Remote seals are selected for viscous, corrosive, hot, hygienic or otherwise difficult process connections where a direct impulse path is unsuitable. The capillary length, routing, elevation difference, fill fluid and ambient/process temperature affect measurement response and zero shift. Evaluate these factors together with the operating pressure and process compatibility.
Configuration and compatibility
Confirm the complete transmitter and seal assembly code, including diaphragm material, fill fluid, capillary arrangement, flange or threaded connection, communication and hazardous-area approvals. The family maximum pressure is not automatically the rating of every seal assembly. Request the exact ABB configuration record where the code contains legacy or special options.
Related models and order-code references
The following designations are related catalog references, not automatic substitutes. Check each complete code, rating, connection, revision and application requirement before selecting a variant.
- 266HRH-H-R-R-B-1-E1-L1-B7-H4+ S26RA-H-E1-S-F-HM-2-A-H-S-N-N
- 266HRH-P-R-R-B-1-E1-L1-B7-H4+ S26RA-H-E2-S-F-SM-1-A-E-S-N-N
- 266HRH-S-R-R-B-1-E1-L1-B6-H4 + S26RR-H-E6-S-F-L-M-3-A-E-S-N-N
- 266HRH-S-R-R-B-1-E1-L1-B7-H4+ S26RA-H-E5-S-F-SM-1-A-E-S-N-N
- 266HRH.P.R.R.B.3-EY..L1.B6.I1.H3+S26RA.H.E2.S.F.SM.1.B.Q.S.N.N.N
- 266HRH.Q.R.R.B.3-EY.L1.B6.I1.H3+S26RA.H.E3.S.F.SM.1.B.Q.S.N.N.N
- 266HRHMRRA7LSB7S2I2C5+S26FAHE1SFHM2AQS3AN
- 266HRHMRRB1E1L1B6M5C1C5H4+S26RAHE2SFHM2AMSNNN
- 266HRHMRRB7LSR1B7T4I3C5H3+S26FAHE1SFSM2AES5AF
- 266HRHPARA7LSR1C1H3
- 266HRHPRRB3E1L1M5C1S26MAHC2HHMN1S12+SR15263
- 266HRHPRRS8E2L1B7S2I2+S26RAHE1SFSM1BSS2AF
- 266HRHPWRB3E1M5C1,S26MAHC2SSMN1S12
- 266HRHPWRB3EN11C1,S26MAHC2HHMN1D12+SR15253
- 266HRHQRRB3E1M5C1,S26MAHC2SSMN1G17+SR17124
- 266HRHQRRS8-L1S2I2H3+S26RAHE2SFSM2N1SNNN
- S26FAHE1SFHM2AQS3AN(266HRHMRRA7 LSB7S2I2C5)
Installation and commissioning
Mount the seal without twisting or sharply bending its capillary, protect it from mechanical damage and thermal gradients, and use pressure-rated process fittings. After filling and installation, perform a zero check under the proper static head condition. Validate pressure response and loop scaling, then document the seal layout and calibration reference.
Replacement and procurement information
For a quotation or replacement review, provide the complete designation 266HRHMRRA1E2L1B7I2C5H3, the order code where applicable, serial or hardware revision, quantity, operating environment, connected equipment and required delivery date. Include a legible nameplate image and relevant wiring, loop or switchgear drawing so the exact interface and configuration can be checked.
Ask the supplier to confirm accessories, revision compatibility and any approved successor in writing. Do not select solely from a family name or product photograph. Follow the current ABB installation and safety instructions for the exact unit.
