Rosemount 3051T In-Line Pressure Transmitter
Overview
The Rosemount 3051T is the in-line member of the Rosemount 3051 pressure transmitter family. The official product data sheet calls the Rosemount 3051T in-line pressure transmitters the industry standard for gage and absolute pressure measurement, and explains that the compact in-line design lets the transmitter connect directly to a process for quick and cost-effective installation. It is offered as the 3051TG for gage pressure and the 3051TA for absolute pressure, with ranges that reach 20,000 psi, which sets it apart from the coplanar 3051C models that concentrate on differential duty.
As a trusted supplier of Rosemount products in Oman and the GCC, Seven Star LLC supplies the Rosemount 3051T In-Line Pressure Transmitter with the Rosemount 3051T datasheet and regional technical backing. Engineers in Muscat, Sohar and Salalah can choose the pressure type, range, connection and output from one source and receive a configured device ready for installation.
Operating Principle
The Rosemount 3051T uses a sensor module with an isolating diaphragm in a threaded in-line body. Process pressure deflects the diaphragm and the fill fluid, silicone or inert halocarbon, transfers the pressure to the sensor, where it is converted to a digital value and corrected in the electronics. A gage version references atmosphere, so the lower range limit assumes atmospheric pressure of 14.7 psig, while the absolute version references a vacuum and starts at 0 psia. The transmitter updates its measurement 22 times per second, and its total response time is 100 ms with the HART output and 152 ms with FOUNDATION Fieldbus or PROFIBUS PA.
The data sheet quotes reference accuracy of 0.04 percent of span for ranges 1 to 4 and 0.075 percent of span for ranges 5 and 6, with long-term stability of 0.2 percent of upper range limit for ten years on ranges 1 to 4. Burst pressure is 11,016 psi for ranges 0 to 4, 26,016 psig for range 5 and 46,092 psi for range 6. Because the sensor and connection are in one compact body, the Rosemount 3051T avoids the extra flange joints and impulse tubing that differential transmitters need, making it especially suitable for high static pressures.
Engineering Design of the Rosemount 3051T
Isolating diaphragms are 316L stainless steel or alloy C-276, with gold-plated versions of both available, and the process connection wetted parts match the diaphragm material. A 316L stainless steel in-line version is also offered with a non-threaded instrument flange for ranges 1 to 4. Housings include aluminum, ultra low copper aluminum and stainless steel with ½-14 NPT or M20 entries, and the wireless version uses an engineered polymer housing. A transmitter weighs 3.0 lb (1.4 kg) without options, or 1.9 lb (0.86 kg) in the wireless version, which is considerably less than the 6.0 lb of a 3051C.
The Rosemount 3051T can be fitted with a back-lit graphical display with local language capability, Bluetooth connectivity for configuration from a safe distance, external configuration buttons that allow work in hazardous areas without removing the cover, and an optional 306 two-valve integral manifold. Process temperature limits for silicone fill are –40 to 121 °C and the ambient range follows the 3051 family limits. Material selections can follow NACE MR0175 and MR0103 recommendations for sour service.
Key Features
The Rosemount 3051T brings the 3051 platform to direct in-line pressure measurement. The features below are taken from the official data sheet.
- Measures gage pressure with the 3051TG and absolute pressure with the 3051TA across seven range codes from 5 psi to 20,000 psi.
- Offers reference accuracy of 0.04 percent of span on ranges 1 to 4, with ten-year stability of 0.2 percent of upper range limit.
- Provides Loop Integrity and Plugged Impulse Line diagnostics through option code DA1, logged in a built-in diagnostic log.
- Supports Bluetooth configuration and a back-lit graphical display with local language capability.
- Delivers HART, low-power 1 to 5 Vdc HART, FOUNDATION Fieldbus, PROFIBUS PA and 2.4 GHz WirelessHART output options.
- Includes safety certification and proof testing options for SIL 2/3 applications per IEC 61508.
- Offers autoclave-compatible coned and threaded connections for ranges 5 and 6.
- Reduces weight to 3.0 lb (1.4 kg), helping installations on small lines and skids.
Industrial Applications
The Rosemount 3051T is the logical choice for line pressure, discharge pressure, wellhead and manifold pressure, hydraulic and high-pressure skid measurement, and any service where a single process connection is preferred to a coplanar flange. Absolute versions are used for vacuum and barometric reference, steam and condensate systems, and distillation columns. In Oman these duties occur at wellheads and gathering systems, gas plants, compressor stations, desalination high-pressure pumps and utility steam systems, including facilities near Sohar and Salalah.
In Oman and the GCC, Seven Star LLC supplies the Rosemount 3051T to operators, EPC contractors and instrumentation maintenance teams across Oman and the wider GCC. For differential, flow and level duty, compare the Rosemount 3051 pressure transmitter, the Rosemount 3051S Coplanar pressure transmitter and the Rosemount 2088 gauge and absolute pressure transmitter.
Technical Specifications
The table lists published Rosemount 3051T specifications from the Emerson 3051 product data sheet dated July 2026.
| Parameter | Specification |
|---|---|
| Model | Rosemount 3051T In-Line Pressure Transmitter (3051TG gage, 3051TA absolute) |
| Range 0 (gage) | –5 to 5 psi (–345 to 345 mbar) |
| Range 5 | –14.7 to 10,000 psi gage; 0 to 10,000 psia absolute |
| Range 6 | –14.7 to 20,000 psi gage; 0 to 20,000 psia absolute |
| Reference accuracy | ±0.04% of span (ranges 1 to 4); ±0.075% of span (ranges 5 and 6) |
| Long-term stability | ±0.2% of URL for 10 years (ranges 1 to 4) |
| Output protocols | 4–20 mA HART, 1–5 Vdc HART, FOUNDATION Fieldbus, PROFIBUS PA, WirelessHART |
| Power supply | 10.5 to 42.4 Vdc (4–20 mA) |
| Response time | 100 ms (HART); 152 ms (Fieldbus, PROFIBUS PA); update 22 times per second |
| Process connections | ½-14 NPT female; G½ A EN 837-1 male; autoclave F-250-C |
| Isolating diaphragms | 316L stainless steel, alloy C-276, gold-plated versions |
| Process temperature (silicone) | –40 to 121 °C |
| Weight | 3.0 lb (1.4 kg); wireless 1.9 lb (0.86 kg) |
Request a Quote for Rosemount 3051T
Request a formal quotation for the Rosemount 3051T In-Line Pressure Transmitter from Seven Star LLC. Send the pressure type, range, process connection, diaphragm material, output protocol and hazardous area approval, and our instrumentation division will return a valid model code with lead time. We can provide the Rosemount 3051T datasheet and confirm current availability and lead time. In Oman and the GCC, Seven Star LLC supplies transmitters on request with the local support that critical pressure points demand.
- Datasheet Emerson Rosemount 3051 Pressure Transmitter Product Data Sheet 00813-0100-4001, Rev WH (covers 3051T), July 2026 Download
Rosemount product families on this page
Pressure includes the 3051 in its variants (3051T in-line, 3051L for liquid level, 3051CF DP flowmeter and the 3051SMV MultiVariable transmitter), the 2051 and 1199 diaphragm seal systems. Level instruments are the 3300 guided wave radar, the 5408 non-contacting radar and the 2120 vibrating fork switch. Temperature is covered by the 248 and 644 head mount transmitters and the 848T high density transmitter for multiple sensor inputs. The 8800D vortex flowmeter and the 702 wireless discrete transmitter are also listed, along with liquid analysis sensors.Where Rosemount instruments are used
These are standard instruments in oil and gas production, refining, petrochemical, power and water plants. Typical duties are line and vessel pressure, differential pressure flow across orifice plates, tank and separator level and interface, and temperature measurement on pipes, reactors and rotating equipment.Ordering Rosemount transmitters: what we need
Send the complete model string and the serial number from the nameplate; a photo is ideal. Every character of the string selects something: range, output, materials of the isolating diaphragm and flange, process connection, housing, approval and options. If you are specifying a new point, give the measured variable and span, process fluid, pressure and temperature, connection, output (4-20 mA HART, FOUNDATION Fieldbus or wireless), display and hazardous area approval. For remote seals add flange size, rating and capillary length.Browse Rosemount products by category: Pressure Instrumentation, Temperature Instrumentation, Level Transmitter, Liquid Analysis Sensors, Flowmeters.
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