Emerson 2051L*7092387 Product Description
1. Product Overview
The Emerson Rosemount 2051L7092387 is a high-precision level transmitter engineered for reliable liquid level measurement in demanding industrial environmentsEmerson. As a member of the Rosemount 2051 series, it integrates advanced pressure-sensing technology with a robust diaphragm seal system, delivering accurate, repeatable level data for process control and monitoring. Designed for direct mounting or Tuned-System™ assembly, this transmitter is optimized for applications where traditional level devices face challenges such as high temperatures, corrosive fluids, or viscous mediaEmerson. The part number 2051L7092387 denotes a specific configuration with tailored wetted materials, process connections, and output protocols to meet stringent application requirements.
2. Key Features
2.1 Precision Level Measurement
The 2051L*7092387 employs a high-accuracy pressure sensor with up to 0.05% reference accuracy, converting hydrostatic pressure from liquid depth into a linear level outputEmerson. It supports a wide measurement range with 100:1 turndown capability, ensuring reliable performance across varying liquid levels. The integrated diaphragm seal system isolates the sensor from process fluids, eliminating issues like clogging, corrosion, or fouling common in direct-contact level measurementEmerson.
2.2 Versatile Communication Protocols
This transmitter supports multiple industry-standard communication options to suit diverse control system architectures: 4–20 mA HART®, WirelessHART®, FOUNDATION™ Fieldbus, and PROFIBUS PAEmerson. The HART protocol enables digital communication alongside the analog 4–20 mA signal, allowing for remote configuration, diagnostics, and data access without disrupting the analog loop. WirelessHART® versions offer cost-effective, cable-free installation with >99% data reliability, ideal for hard-to-reach or remote locations艾默生.
2.3 Robust Diaphragm Seal System
Equipped with a welded-repairable transmitter connection and a choice of direct mount or Tuned-System™ seal assemblies, the 2051L*7092387 ensures optimal measurement stabilityEmerson. The seal system uses high-quality fill fluids matched to process conditions, withstanding temperatures from –157°F (–105°C) to 401°F (205°C) and pressures up to 300 psi (20.68 bar)Emerson. Wetted material options include 316L stainless steel, Alloy C-276, and Tantalum, providing compatibility with corrosive, abrasive, or high-purity process fluidsEmerson.
2.4 Local Operator Interface (LOI)
The transmitter features an intuitive Local Operator Interface (LOI) with a graphical display and push-button controls, enabling on-site configuration, calibration, and diagnostics without external tools or software. The LOI provides real-time level data, status indicators, and fault alerts, simplifying commissioning and routine maintenance. Users can adjust measurement parameters, set alarm thresholds, and perform loop tests directly at the transmitter, reducing downtime and service costs.
2.5 Safety & Hazardous Area Certifications
Designed for safe operation in critical and explosive environments, the 2051L*7092387 holds SIL 2/3 certification to IEC 61508 (third-party approved), making it suitable for safety instrumented systems (SIS). It also complies with NACE® standards for sour gas service and carries hazardous area approvals (ATEX, IECEx, FM, CSA) for installation in Class I, Division 1/2, and Zone 0/1/2 locationsEmerson. These certifications ensure reliability and safety in oil and gas, chemical, and petrochemical applications.
2.6 Low Maintenance & Long-Term Reliability
The transmitter’s rugged construction includes a corrosion-resistant housing and conformal-coated internal electronics, protecting against moisture, dust, and chemical contaminantsEmerson. Wireless models feature a SmartPower™ module with up to 10 years of maintenance-free operation and field-replaceable batteries, eliminating the need for frequent power supply checks or wiring maintenance艾默生. Basic onboard diagnostics monitor sensor health, seal integrity, and communication status, alerting users to potential issues before they cause measurement errors.
3. Technical Specifications
Model: 2051L*7092387
Brand: Emerson (Rosemount)
Type: Hydrostatic Level Transmitter with Diaphragm Seal
Measurement Principle: Hydrostatic pressure to level conversion
Reference Accuracy: Up to 0.05% of span
Turndown Ratio: 100:1
Max Operating Pressure: 300 psi (20.68 bar)
Process Temperature Range: –157°F (–105°C) to 401°F (205°C) (fill fluid dependent)
Communication Protocols: 4–20 mA HART®, WirelessHART®, FOUNDATION™ Fieldbus, PROFIBUS PA
Seal System: Direct Mount or Tuned-System™ assembly
Transmitter Connection: Welded-repairable
Process Connections: Flanged (ANSI/ASME, EN/DIN, JIS standards)
Wetted Materials: 316L SST, Alloy C-276, Tantalum (configuration dependent)
Power Supply: 12–42 VDC (analog/HART); SmartPower™ (WirelessHART)
Display: Local Operator Interface (LOI) with graphical LCD
Diagnostics: Basic sensor and seal health monitoring, fault logging
Certifications: SIL 2/3 (IEC 61508), NACE®, ATEX, IECEx, FM, CSA
Environmental Rating: IP66/IP67 (dust-tight, weatherproof)
Operating Temperature: –40°F (–40°C) to 185°F (85°C)
Humidity: 0–100% RH, non-condensing
Vibration Resistance: Compliant with IEC 60068-2-6 (10–2000 Hz)
Weight: Approximately 2.5 kg (5.5 lbs)
Warranty: 12-month original manufacturer warranty
4. Product Advantages
4.1 Enhanced Process Efficiency
High accuracy and wide turndown ensure consistent level measurement across varying operating conditions, enabling precise process control and reducing material waste. The diaphragm seal design eliminates measurement errors from fluid contact issues, improving data reliability for critical decisions.
4.2 Reduced Installation & Operational Costs
WirelessHART® options eliminate cabling expenses and simplify installation in remote or hard-to-access areas. The LOI reduces commissioning time, while long-term maintenance-free operation (up to 10 years for wireless models) minimizes service labor and downtime costs.
4.3 Unmatched Application Flexibility
With multiple process connections, wetted materials, and communication protocols, the 2051L*7092387 adapts to diverse applications, from corrosive chemical reactors to high-temperature storage tanks. The Tuned-System™ assembly optimizes performance in long or challenging seal installations.
4.4 Compliance & Safety Assurance
SIL 2/3 certification and hazardous area approvals ensure compliance with global safety standards, protecting personnel and assets in explosive or high-risk environments. NACE® compliance makes it suitable for sour gas and corrosive oil and gas applications.
5. Application Scope
Oil & Gas: Offshore platforms, refineries, and storage terminals—measures level in crude oil tanks, separators, and sour gas vessels.
Chemical & Petrochemical Plants: Reactors, distillation columns, and corrosive fluid storage—handles acids, solvents, and high-purity chemicals.
Power Generation: Coal ash silos, condensate tanks, and cooling towers—provides reliable level data for plant efficiency and safety.
Water & Wastewater Treatment: Clarifiers, sludge tanks, and chemical feed systems—resists fouling and corrosion from wastewater and treatment chemicals.
Food & Beverage: Sanitary storage tanks, fermenters, and processing vessels—available with food-grade wetted materials for hygienic applications.
Pharmaceuticals: High-purity liquid storage and bioreactors—meets strict cleanliness and accuracy requirements for pharmaceutical manufacturing.
6. Installation & Maintenance
6.1 Installation
Mount the transmitter in a vertical or horizontal position using the specified flanged process connection, ensuring proper alignment with the liquid level. For direct mount installations, attach the seal diaphragm directly to the tank nozzle. For Tuned-System™ assemblies, follow Emerson’s guidelines for capillary tube routing and length optimization. Connect the power and communication wiring according to the transmitter’s terminal diagram, ensuring proper grounding to minimize electrical interference. Wireless models require antenna installation and network configuration via the LOI or Emerson’s AMS Device Manager software.
6.2 Routine Maintenance
Monthly: Inspect the LOI for normal operation, check for physical damage or corrosion on the housing and process connections, and verify seal diaphragm integrity.
Quarterly: Review diagnostic logs for abnormal fault codes, perform a loop test (analog/HART models), and clean the LOI display with a soft, dry cloth.
Annual: Calibrate the transmitter using a precision pressure source, inspect capillary tubes for kinks or damage (seal models), and update firmware if required by Emerson’s technical support.
Wireless Models: Replace the SmartPower™ module every 10 years or when low battery alerts appear; no other routine power maintenance is needed.
6.3 Fault Handling
Inaccurate Level Readings: Check for diaphragm damage or fouling, verify fill fluid integrity, inspect capillary tubes for blockages, and recalibrate the transmitter.
No Communication (HART/Wireless): Verify power supply voltage, check wiring connections (analog models), confirm wireless network signal strength (wireless models), and ensure compatibility with the control system.
Fault LED Active: Review LOI fault codes, inspect sensor and seal connections, and check for process overpressure or overtemperature conditions.
7. Ordering Information
Model: 2051L*7092387
Brand: Emerson (Rosemount)
Type: Hydrostatic Level Transmitter with Diaphragm Seal
Configuration: Custom wetted materials, flanged process connection, HART/WirelessHART communication (as per part number)
Packaging: Original factory packaging with installation manual, calibration certificate, and configuration documentation
Accessories: Optional 319 flushing rings, manifold valves, and wireless antennas available separately
Warranty: 12-month factory warranty with global technical support and repair services
Get a Quote