Rosemount 644 and 3144P Configurator: Build Order Code Skip to main content
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Build a Rosemount 644 or 3144P temperature transmitter order code

Pick the transmitter family, mount or housing, output, measurement configuration, and published option codes, then read the assembled model against PDS 00813-0100-4728 and 00813-0100-4021.

Field guide: Rosemount 644 and 3144P Order Code Guide: Transmitter Type, Housing, Output, Measurement Configuration, and Option Rows

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This Rosemount 644 configuration tool turns known transmitter requirements into a candidate model code. For Rosemount 644 ordering information, it walks the type, output, approval, enclosure, and option rows from the published product data sheet instead of asking you to work backward through a long table.

The configurator also covers the Rosemount 3144P. It filters each choice through the ordering rules in the copied data, assembles the model code, and decodes that code back through the same grammar before showing the segment table. The sensor is configured separately, so the model code does not prove the RTD or thermocouple type, range, span, or damping. The Rosemount 848T is not covered in this version.

Pro Tip: Hot Backup requires two sensor inputs. On a 644, choose dual-sensor transmitter type S or T before adding diagnostics code DC. On a 3144P, choose measurement configuration 2 before adding U1. A single-sensor transmitter cannot perform Hot Backup because a diagnostic option does not add a second input. Source: Rosemount 644 PDS page 8, rule X2.

Already have a number? Decode it. Read a 644 head, field, or rail code against the same ordering data.

Rosemount 644 Decoder →

Already have a number? Decode it. Read a 3144P housing, output, measurement, and option string.

Rosemount 3144P Decoder →

The 848T is the multi-input temperature transmitter that this version does not configure.

Rosemount 848T Decoder →

Build the pressure-transmitter side of the same model-number task.

Rosemount 3051 Model Number Builder →

How It Works

  1. Pick the family

    Choose the Rosemount 644 or 3144P. Switching family clears the form because identical letters can have different meanings in the two ordering tables.

  2. Pick the mount or housing and output

    For a 644, choose the transmitter type and output. For a 3144P, choose the housing style, output, and measurement configuration. These are required model-code positions.

  3. Add approval and option codes

    Choose no more than one code from each optional category. Conflicting codes are disabled. A pending code remains selectable but names each additional row that the ordering rules require.

  4. Read the decoded result

    Check the assembled model code, build status, segment meaning, Standard flag, and source page. The segment breakdown comes from decoding the assembled string, not from echoing the form.

  5. Share, export, and verify

    Copy the configuration, open it in your own email client, save a shareable URL, or export CSV and PDF. Verify every row against the current product data sheet and the project specification.

Built For

  • A maintenance planner has a failed 644 with a readable nameplate and a work order that calls for head mount, HART, no approval, a J6 enclosure, and a 60 Hz line filter. The configurator produces 644HANAJ6F6, then the planner checks the physical label, sensor assembly, and current PDS before ordering.
  • An I&C engineer is preparing a bid package for dual-sensor Hot Backup. The engineer selects 644 type S with HART and DC, or 3144P measurement configuration 2 with U1, then carries the decoded segment table and source pages into the instrument review.
  • A project engineer needs a 3144P X-well assembly lane. The configurator shows that measurement configuration 3 also needs C1, HR7, TR1, a pipe-mount row, and MC1, then the engineer confirms pipe, sensor, insulation, and installation details against current X-well instructions.

Features & Capabilities

Parameters to model code

The wizard follows the required positions first, then the optional categories in source-page order. Only codes present in the copied ordering data can reach the result.

644 type and output positions 3144P housing, output, and measurement positions One code per option category No free-text model suffix

What changes between the 644 and 3144P

The 644 carries head, field, and rail transmitter types. The 3144P carries a field housing plus a separate measurement-configuration digit, including current X-well rows.

644 single or dual sensor input 644 HART, FOUNDATION Fieldbus, or PROFIBUS PA where tabulated 3144P single, dual, or X-well measurement configuration 3144P HART or FOUNDATION Fieldbus where tabulated

What each segment means

The code breakdown is produced by decoding the assembled string through the same audited grammar. It is not copied back from the selections.

Verbatim meaning from the data Standard flag from the ordering row Source page on each segment No output when the round trip is incomplete

Records for review

The result can be copied into a quote request, shared as a URL, or exported with the assumptions and source notes attached.

Clipboard configuration block Email draft with empty recipient Shareable URL CSV and PDF export

Worked example: 644HANAJ6F6

Segment Code Means Source
Model 644 Rosemount 644 Temperature Transmitter PDS 00813-0100-4728 Rev WH
Transmitter type H DIN A head mount, single sensor input Page 6
Transmitter output A 4-20 mA with digital signal based on HART Protocol Page 7
Approval NA No approval Page 7
Enclosure J6 Universal junction box, 2 entries, aluminum, 1/2-14 NPT, 3 in. (76 mm) diameter Page 8
Line filter F6 60 Hz line voltage filter Page 10
Sensor boundary Not encoded A 644H does not identify a Pt 100 RTD, a type K thermocouple, or the configured range. Those values come from the Configuration Data Sheet or the assembled sensor model string. Configuration Data Sheet 00806-0100-4728

Assumptions

  • The 644 ordering rows come from Product Data Sheet 00813-0100-4728 Rev WH, February 2026. Rail rows come from the separate 00813-0300-4728 Rev AA, December 2021 document.
  • The 3144P ordering rows come from Product Data Sheet 00813-0100-4021 Rev TH, February 2026.
  • The tool allows one code per option category. If a project needs two codes in one category, the copied data cannot confirm that combination.
  • Clean in the grammar means the assembled string decodes with all required positions and no unresolved warning. It does not prove manufacturer acceptance, application fit, or availability.
  • Standard means the copied ordering row is marked with starred: true. It does not mean the row is correct for every application.

Limitations

  • The model code does not identify the sensor type, range, span, damping, or variable mapping. Those values are configured separately.
  • Price, availability, lifecycle status, and lead time are not checked.
  • An approval code does not prove that the selected certificate covers the actual hazardous-area classification or installation.
  • Unsupported or conflicting combinations show a named rule or a needs-source note instead of a plausible model number.
  • The current product data sheet, project specification, instrument data sheet, and physical label control the final order.

References

  1. Rosemount 644 Temperature Transmitter Product Data Sheet. Document number 00813-0100-4728. Revision WH. February 2026. Ordering pages 6 through 13. https://www.emerson.com/is/content/emerson/en/measurement-instrumentation/technical/products/temperature/documents/doc-rosemount-00813-0100-4728.pdf
  2. Rosemount 644 Rail Mount Temperature Transmitter Product Data Sheet. Document number 00813-0300-4728. Revision AA. December 2021. Ordering page 4. https://www.emerson.com/is/content/emerson/en/measurement-instrumentation/technical/products/temperature/documents/doc-rosemount-00813-0300-4728.pdf
  3. Rosemount 3144P Temperature Transmitter Product Data Sheet. Document number 00813-0100-4021. Revision TH. February 2026. Ordering pages 5 through 16. https://www.emerson.com/is/content/emerson/en/measurement-instrumentation/technical/products/temperature/documents/doc-rosemount-00813-0100-4021.pdf
  4. Emerson Rosemount 644 HART Head Mount Configuration Data Sheet. Document number 00806-0100-4728. Revision EH. April 2021. The configurator output follows its model-string and segment-line shape. https://www.emerson.com/is/content/emerson/en/measurement-instrumentation/technical/products/temperature/documents/dl-rmt-644-87586.pdf

Frequently Asked Questions

644 identifies the Rosemount 644 transmitter. H means DIN A head mount with one sensor input. A means 4-20 mA with HART. NA means no approval. J6 is the aluminum universal junction box with two 1/2-14 NPT entries and a 3 in. diameter. F6 is the 60 Hz line-voltage filter. The code does not identify the RTD or thermocouple type, range, or span; those values come from the Configuration Data Sheet or the assembled sensor model string.
Use Rosemount 644 Product Data Sheet 00813-0100-4728 Rev WH, February 2026. This configurator walks the same copied ordering rows and cites the source page for every segment. It does not prove current availability or price.
Choose transmitter type H for a single-sensor head mount or S for a dual-sensor head mount, then choose output A for 4-20 mA with HART. Add the approval, enclosure, diagnostics, display, filter, and other published option codes needed by the instrument specification. The output choices are constrained by the transmitter type.
The 644 begins with model 644, one transmitter-type character, and one output character. The 3144P begins with model 3144P, a two-character housing style, one output character, and one measurement-configuration digit. Current X-well ordering rows are carried by the 3144P, not the 644.
The copied ordering rules exclude that combination or require a different required-position code. The configurator names the segment, code, rule, and source page and shows no model number. This avoids returning a credible-looking string that the table does not support.
No. The sensor type, range, span, damping, and related configured values are separate from the normal 644 transmitter model code. They are recorded on the Configuration Data Sheet or on an assembled sensor model string when option XA is used.
Verify the current product data sheet revision, the approval certificate against the actual area classification, the enclosure and conduit thread against the installation, and the sensor type, range, and span against the instrument data sheet. Complete a qualified instrumentation review before purchase or installation.
Disclaimer: This configurator is an identification and ordering aid built from published Rosemount ordering tables. ToolGrit is not affiliated with Emerson or Rosemount. Confirm the model code, source revision, approval, enclosure, protocol, sensor configuration, and installation requirements against current manufacturer documents and qualified instrumentation review before purchase or installation.

Guides for this job

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Rosemount 644 and 3144P Order Code Guide: Transmitter Type, Housing, Output, Measurement Configuration, and Option Rows

How a Rosemount temperature transmitter model number is built from required positions plus optional ordering codes, why the early positions decide which later rows stay available, what Hot Backup and the dual-sensor requirement do to the code, where the 644 and 3144P tables use the same letter for different things, and why the sensor is not encoded in the model string. Companion to the Rosemount 644 and 3144P Configurator.

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