The Rosemount 3144P is a higher-feature field-mount temperature transmitter with single/dual sensor capability, Hot Backup, sensor drift detection, dual-input math modes, X-well rows, and Fieldbus/HART variants. This guide explains how to read supported rows with the Rosemount 3144P Decoder, anchored to Emerson PDS 00813-0100-4021 Rev TH (February 2026), while treating the result as a reference only, not an Emerson order, certificate, X-well installation, SIS approval, or commissioning record.
Housing, Output, Measurement Configuration
The 3144P has three required positions after the prefix. The housing style is a two-character code (D1 through D9, and D0): a field-mount dual-compartment housing in aluminum, stainless steel, or ultra-low-copper aluminum, with a specific conduit entry (NPT, M20, PG13.5, or JIS). The output is HART (A) or FOUNDATION Fieldbus (F). The measurement configuration is single sensor (1), dual sensor (2), X-well assembly with sensor/mounting (3), or X-well-capable transmitter only (4) in the current Rev TH source.
The decoder reads all three, then matches locally supported option rows by longest match. A current test fixture uses 3144P D1 A 3 K1 TR1 PM2 MC1 S020 C1 HR7 M5 to prove the Rev TH X-well assembly lane stays parseable without treating it as installation approval.
Rosemount 3144P Temperature Transmitter Decoder
Decode Rosemount 3144P Rev TH rows with X-well, sensor setup, certification, SIS, configuration, Fieldbus, and install-review warnings.
Dual Sensor Gates the Feature Set
The measurement-configuration character is more consequential than its single digit suggests. The dual-input configurations all require dual sensor (configuration 2): Hot Backup (U1), sensor drift alert in warning or alarm mode (U2/U3), differential temperature (U5), average temperature (U6), first-good temperature (U7), and two independent sensors (U4).
On a single-sensor build (configuration 1), none of the U options are buildable. If any dual-sensor strategy is in play, choose configuration 2 up front. The decoder flags any U option that appears on a single-sensor configuration.
What X-well Is and Is Not For
Current Rev TH X-well ordering is measurement-configuration driven: code 3 is the assembly lane with sensor and mounting, and code 4 is a transmitter-only X-well-capable lane. The local decoder also recognizes Rev TH X-well rows such as TR1, PM1/PM2/PM9, MC1, and supported pipe-size codes.
Those rows are still only a prompt to pull current Emerson X-well/PDS/QSG/manual data. Pipe size, material, schedule, mount design, sensor assembly, insulation, orientation, process conditions, monitoring-only limits, and factory configuration are outside the model-code decode and need qualified review.
HART Versus Fieldbus Splits the Option List
Choosing FOUNDATION Fieldbus output (F) removes HART-only rows such as DA1, C1, NAMUR alarm levels, custody-transfer rows, some drift-alert modes, HART safety certifications, HART revision rows, and current X-well ordering rows. Conversely, the FF control (A01) and FF diagnostics (D01) options require Fieldbus output.
Decide HART versus Fieldbus before walking the option list, then verify the result against the current Emerson configurator, QSG/manual, host/AI-block/channel mapping, segment design, device files, and qualified project review. As with the 644, the normal model code does not prove sensor type, range, span, damping, alarm levels, Fieldbus block setup, or installed wiring.