Rosemount 3051TG2A2B21AB4M5 Traditional In-Line Gauge Pressure Transmitter, -14.7 to 150psi 4-20mA HART 7 SIL2 Certified 316L SS Direct-Mount Industrial Pressure Sensor

Rosemount 3051TG2A2B21AB4M5 Classic In-Line Traditional Gauge Pressure Transmitter with SIL2 Safety Compliance

3051TG Traditional In-Line Design & Core Application Advantages

Classic Direct-Mount Structural Architecture

Differentiated from coplanar CG models and premium GP variants, the Rosemount 3051TG2A2B21AB4M5 adopts the mature traditional in-line direct-mount design of the 3051T series. This bolt-free integrated process connection structure eliminates complex manifold configurations and extra adapter fittings required for coplanar transmitters, enabling fast, space-saving installation on standard industrial pipelines and equipment. The simplified mechanical structure reduces potential leakage points and vibration amplification, ensuring stable operation in conventional industrial environments while controlling overall project costs.

Dual Vacuum & Positive Pressure Adaptability

Configured with Grade 2 standard pressure span, the Rosemount 3051TG2A2B21AB4M5 supports full vacuum (-14.7 psi) to 150 psi positive pressure continuous measurement. This versatile dual-range coverage perfectly matches most general industrial process conditions, including pipeline vacuum state monitoring, micro-pressure fluctuation detection and conventional positive pressure operation control. It serves as a cost-effective and high-reliability solution replacing multiple single-range transmitters for diverse medium-pressure monitoring scenarios.

Full Official Model Code Decoding for 3051TG2A2B21AB4M5

Factory Pre-Calibrated Configuration Breakdown

Each character of the Rosemount 3051TG2A2B21AB4M5 represents fixed factory preset specifications, covering series type, measurement mode, pressure range, communication protocol, process connection, wetted material, housing structure and safety certification. All configurations comply with Emerson global coding standards without on-site modification, supporting accurate engineering selection, equipment replacement and spare parts management.

• 3051T: Classic in-line direct-mount pressure transmitter series with mature and stable industrial-grade performance

• G: Traditional Gauge pressure type, measuring process pressure relative to real-time atmospheric pressure

• 2: Standard medium pressure range grade, calibrated for -14.7 psi to 150 psi full measurement span

• A: Standard 4-20mA analog output with superimposed HART 7 digital communication for dual signal transmission

• 2B: 1/2-inch NPT female standard process thread, compatible with global industrial pipeline connection standards

• 21: High-quality 316L stainless steel wetted components with excellent stress corrosion resistance

• A: Durable coated aluminum alloy housing with superior electromagnetic shielding and environmental protection

• B4: Stainless steel mounting bracket for stable pipe and panel fixed installation

• M5: SIL2 functional safety certification compliant with IEC 61508 international safety integrity standards

Medium-Range Measurement Precision & Long-Term Operational Stability

High-Accuracy Full-Span Pressure Detection

The Rosemount 3051TG2A2B21AB4M5 delivers stable reference accuracy up to ±0.075% of calibrated span, maintaining fully linear 4-20mA signal output throughout the entire vacuum-to-positive pressure range. The mature capacitive sensing element accurately captures subtle pressure fluctuations in dynamic process loops, providing repeatable and reliable pressure data for daily process regulation, equipment condition monitoring and pipeline pressure trending.

Ultra-Low Drift & Anti-Interference Performance

Equipped with intelligent temperature compensation and anti-aging circuit design, this traditional gauge pressure transmitter effectively offsets measurement deviations caused by ambient temperature changes, pipeline vibration and long-term continuous operation. Its optimized structural anti-fatigue design ensures ultra-low long-term drift, extending calibration cycles significantly and reducing routine maintenance workload for general industrial production lines.

316L SS Wetted Material & Versatile Environmental Adaptability

Premium Corrosion-Resistant Material Properties

All wetted parts of the Rosemount 3051TG2A2B21AB4M5 adopt high-grade 316L stainless steel. Compared with standard 316 stainless steel, the low-carbon 316L material features stronger stress corrosion resistance and oxidation resistance, adapting to industrial gas, process water and mildly corrosive chemical media. It effectively prevents sensor surface erosion and structural aging during long-cycle continuous operation, ensuring durable and consistent measurement performance.

Rugged Industrial Environment Tolerance

The sealed reinforced housing supports stable 24/7 operation in wide temperature ranges and 5%–95% non-condensing humidity environments. It effectively isolates on-site dust, moisture intrusion, electromagnetic interference and mechanical vibration, perfectly adapting to conventional industrial workshops, outdoor pipeline stations and general-purpose field installation scenarios.

HART 7 Intelligent Communication & Self-Diagnostic Functions

Dual Analog-Digital Signal Transmission

The Rosemount 3051TG2A2B21AB4M5 outputs standard linear 4-20mA analog signals for real-time pressure data transmission to DCS and PLC automation systems. The built-in HART 7 protocol supports remote parameter configuration, range adjustment, calibration data query and historical pressure trend analysis, realizing efficient remote asset management and simplifying on-site equipment debugging.

Real-Time Operational Self-Diagnostics

Integrated intelligent diagnostic logic continuously monitors sensor status, circuit integrity and signal stability in real time. The system automatically identifies abnormal conditions such as signal drift, circuit failure and pressure fluctuation anomalies, triggering standardized fault alarms instantly. This proactive monitoring minimizes unplanned production downtime and ensures safe and stable process operation.

SIL2 Safety Performance & Industrial Application Values

Safety-Critical Process Loop Adaptability

With authoritative SIL2 functional safety certification, the Rosemount 3051TG2A2B21AB4M5 can be deployed in safety instrumented systems and general process interlock loops. The standardized safety circuit and structural design reduce equipment failure risks, meeting basic and stringent safety control requirements for conventional industrial production processes.

Core Selection Advantages & Typical Industrial Scenarios

Industrial users prefer the Rosemount 3051TG2A2B21AB4M5 for its mature traditional in-line structure, cost-effective performance and reliable safety compliance. It balances high precision and economic benefits, with simple installation and low maintenance costs. Typical applications include general petrochemical pipeline pressure monitoring, power plant auxiliary system control, industrial water treatment process pressure tracking, food and pharmaceutical conventional process pressure detection, and general industrial safety pressure monitoring loops.