The Rosemount 3051S Submersible Level Transmitter is an integrated wireless solution for measuring liquid level through hydrostatic pressure. The submersible sensor is installed at the required measurement depth, while the wireless transmitter communicates measurement data to a compatible Emerson wireless network.
Designed for remote and difficult-to-wire locations, the system helps reduce installation complexity and provides access to level and process temperature information. Its WirelessHART® communication and SmartPower™ options make it suitable for monitoring applications where dependable data transmission and reduced maintenance are important.
Key Features
- Hydrostatic pressure-based level measurement for remote liquid-level monitoring
- Integrated wireless measurement solution for simplified deployment
- WirelessHART® communication with reported data reliability above 99%
- Level and process temperature measurement in supported configurations
- Selectable measurement ranges from 0–30 psi or 0–150 psi, depending on configuration
- Extended-range antenna options for remote monitoring and configuration access
- SmartPower™ technology offering up to 10 years of operation under specified conditions
- Battery replacement without removing the transmitter with supported SmartPower configurations
- Optional LCD display for local level and process temperature readings
- Compatibility with existing Emerson Wireless Gateways and commissioning tools
Suitable Applications
- Reservoir and storage tank level monitoring
- Water and wastewater facilities
- Remote liquid-level measurement
- Industrial utility systems
- Water treatment plants
- Remote process monitoring
- Agricultural water storage and distribution
- Hard-to-wire measurement locations
- Industrial facilities using Emerson wireless networks
Technical Highlights & Selection Considerations
- Measurement principle: Uses hydrostatic pressure to determine liquid level. Confirm suitability based on liquid density and installation conditions.
- Measurement range: Published selectable ranges include 0–30 psi and 0–150 psi, corresponding approximately to 0–21 m and 0–105 m of water head, respectively. Verify the required range against the product datasheet.
- Measurement accuracy: Emerson lists level performance up to ±0.075% of span for the specified performance configuration. Confirm the applicable accuracy for the selected range and setup.
- Temperature measurement: Process temperature measurement is available as part of the integrated solution. Published performance is approximately ±2.8°C from −10°C to 50°C for the specified conditions.
- Wireless communication: Uses WirelessHART®. Confirm network coverage, gateway compatibility, antenna requirements, and site communication conditions.
- Power supply: SmartPower™ options support long-term operation. Actual battery life depends on update rate, environmental conditions, and configuration.
- Local display: An LCD is optional; verify availability when placing an order.
- Installation: Confirm sensor placement, cable requirements, mounting arrangements, liquid compatibility, and the required measurement depth.
- System integration: Check compatibility with the existing Emerson Wireless Gateway and configuration tools before deployment.
Frequently Asked Questions
Q1: What is the Rosemount 3051S Submersible Level Transmitter used for?
It measures liquid level in remote or difficult-to-wire locations, such as reservoirs, storage tanks, and industrial water systems, and transmits readings wirelessly.
Q2: How does the Rosemount 3051S measure liquid level?
The submersible sensor measures hydrostatic pressure at its installation depth. The pressure measurement is used to determine the liquid level, taking liquid density and installation conditions into account.
Q3: Does the Rosemount 3051S support wireless communication?
Yes. It uses WirelessHART® technology and can integrate with compatible Emerson Wireless Gateways and commissioning tools.
Q4: How long does the battery last?
SmartPower™ solutions offer up to 10 years of operation under specified conditions. Actual battery life depends on configuration, update rate, and operating environment.
Q5: Can the transmitter display readings locally?
Yes. An optional LCD display can provide local readings for level and process temperature, depending on the selected configuration.
Q6: What should I confirm before purchasing?
Confirm the measurement range, required measurement depth, liquid properties, wireless network coverage, antenna requirements, power configuration, display option, and compatibility with your existing monitoring system.
