Submersible Pressure Transmitters
Last Updated: April 1, 2025
Description
Submersible pressure transmitters are specialized sensors designed to be immersed in liquids. They are used to measure the pressure exerted by the liquid, which can be translated into a measurement of the liquid's level within a tank or other container.
Working Principle
Submersible pressure transmitters operate based on the principle of hydrostatic pressure measurement. When submerged, the transmitter senses the pressure exerted by the liquid above it. This pressure is directly proportional to the height of the liquid column, allowing the device to calculate the liquid level. These transmitters are particularly useful because they provide continuous and accurate monitoring of liquid levels, even in challenging environments.
Applications
Submersible pressure transmitters are commonly used in various applications, including:
- Water and Wastewater Management: They are used in sewage lift stations to monitor water levels and ensure efficient operation.
- Borehole Water Level Monitoring: These transmitters are employed to measure water levels in deep wells, providing critical data for water resource management.
- Tank Level Measurement: In industrial settings, they are used to monitor the levels of liquids in storage tanks, ensuring proper inventory management and process control.
Advantages over other Pressure Transmitters
Submersible pressure transmitters offer several advantages over other types of pressure transmitters:
- Direct Measurement: They provide direct measurement of liquid levels without the need for additional calculations or conversions.
- Reliability in Harsh Environments: Designed to withstand harsh conditions, these transmitters are ideal for use in environments where other sensors might fail, such as in corrosive or high-moisture settings.
Limitations
Despite their advantages, submersible pressure transmitters have some limitations:
- Installation Challenges: Installing these transmitters in deep or difficult-to-access locations can be challenging and may require specialized equipment.
- Maintenance Requirements: Regular maintenance is necessary to ensure the integrity of seals and prevent sensor fouling, which can affect accuracy.
Considerations
When selecting and using submersible pressure transmitters, several factors should be considered:
- Initial Costs: The initial cost of submersible pressure transmitters can be higher than other types due to their specialized design and materials.
- Operating Expenses: While generally reliable, these transmitters may incur higher operating expenses due to maintenance and potential replacement needs.
- Durability and Accuracy: They are designed for durability and high accuracy, but regular calibration and maintenance are essential to maintain performance.
- Replacement and Maintenance Costs: Consider the long-term costs associated with maintaining and replacing these transmitters, especially in challenging environments.
from ifm efector inc.
For level measurement in hazardous areas. Longitudinally watertight cable. Robust stainless steel housing with high ingress resistance. High overall accuracy and long-term stability. View other products in this family of sensors. From May 1st 2025, products produced in EU and Singapore have an... [See More]
- Features: Submersible
- Pressure Measurement: Gauge; Vacuum
- Signal Output: Analog Voltage; Analog Current; analog signal
- Working Pressure Range: 0.0 to 8.7
from Trafag Inc.
Main Features. Explosion-proof Ex ia IIC T3...T6. Low pressure ranges (to 100mbar). Versions with frontal flush diaphragm. Media temperature to 150 °c. EMC Protection, iec 61000. Option:lightning protection (iec 61000-4-5) [See More]
- Features: Submersible
- Sensor Technology: Semiconductor Piezoresistive
- Signal Output: Analog Current
- Pressure Measurement: Gauge
from Viatran
The Model 517 pressure transmitter is an all-welded, submersible unit designed to give an accurate level measurement in up to 1,200 feet of water. The 517 pressure sensor is excellent for general water applications and excels in a number of corrosive applications. The piezoresistive silicon sensor... [See More]
- Features: Temperature Compensated; Submersible
- Sensor Technology: Piezoelectric
- Signal Output: Analog Current
- Pressure Measurement: Absolute
from Fluidwell bv
The F053 is a versatile pressure indicator with continuous pressure monitoring feature. It offers the ability to set one low pressure and one high pressure alarm value. If desired, an ignore function can be set up to allow for an incorrect pressure for a certain period of time. The configuration of... [See More]
- Features: Intrinsically Safe (optional feature); Alarm Indicator; Submersible
- Media: Liquid
- Signal Output: Switch
- Display Type: Digital Numerical Display
from Clark Solutions
Series 612 submersible pressure transmitters were designed to provide a previously unequalled level of performance. Utilizing Piezoresistive Sensor Technology, Series 612 Transducers are accurate, shock resistant and extremely stable over long periods of time. Reverse polarity protection, short... [See More]
- Features: Temperature Compensated; Submersible
- Sensor Technology: Semiconductor Piezoresistive
- Signal Output: Analog Voltage (optional feature); Analog Current
- Pressure Measurement: Gauge
from VEGA Americas, Inc.
Application area. For level measurement in wells, basins and open tanks. Maximum sensor length: Cable 250 m, tube 6 m. Can be combined with any other sensor of VEGABAR Series 80 for electronic differential pressure measurement. The VEGABAR 86 is a submersible pressure transmitter for level... [See More]
- Features: Intrinsically Safe; Submersible
- Pressure Measurement: Differential
- Signal Output: Analog Current; PROFIBUS®; FOUNDATION
- Working Pressure Range: 0.0 to ?
from Monarch Instrument
The Track-It ™ Pressure/Temp and Vacuum/Temp Data Loggers are battery powered stand alone water tight compact data loggers that record up to 64,000 samples. They can be configured to record both Pressure and Temperature or Vacuum and Temperature or either parameter alone to maximize data... [See More]
- Features: Temperature Output; Submersible
- Pressure Measurement: Absolute; Gauge; Vacuum
- Signal Output: Switch
- Working Pressure Range: 5800
from PMC Engineering LLC
The PMC VersaLine ® VT1000 Series transmitters are specifically designed to work alongside our VL submersible series for Topside Measurements of a wide range of water related applications for measurements of ground, surface, waste, sea water and oceanography. Typical applications for the VT... [See More]
- Features: Temperature Compensated; Submersible
- Pressure Measurement: Absolute; Differential; Gauge
- Signal Output: Analog Voltage; Analog Current
- Working Pressure Range: 1 to 15000
from Automation24, Inc.
The Waterpilot FMX21-CD211GGE20A from Endress+Hauser with a sensor range of 9 PSI (240 inH2o) and FKM seal is a submersible hydrostatic level transmitter. It measures with an accuracy of 0.2 % using a capacitive, oil-free ceramic measuring cell and can be used in a variety of ways in the process and... [See More]
- Features: Submersible
- Sensor Technology: Variable Capacitance
- Signal Output: Analog Current; HART® Protocol; Analog
- Pressure Measurement: Relative pressure
from Gems Sensors & Controls
Current Output. Gauge, Sealed and Absolute Models. Submersible, General Purpose and Wash Down Enclosures. Intrinsically Safe Models. The 4700 series pressure sensor provides precise laboratory type measurements in a rugged industrial package complete with turndown capabilities. Exceptional levels of... [See More]
- Features: Intrinsically Safe; Temperature Compensated; Submersible
- Sensor Technology: Thin Film
- Signal Output: Analog Current
- Pressure Measurement: Absolute; Gauge; Sealed
from ifm electronic gmbh
Low-cost, simple level measurement. Pressure compensation via internally vented cable. Reduced wiring complexity when operated as two-wire current loop. High overall accuracy and long-term stability. Robust stainless steel housing with high ingress resistance [See More]
- Features: Submersible
- Pressure Measurement: Gauge; Vacuum
- Signal Output: Analog Voltage; Analog Current; analogue signal
- Working Pressure Range: 0.0 to 3.63
from OMEGA Engineering, Inc.
• All Stainless Steel Housing/Inconel Diaphragm. • Hermetically Sealed Housing. • Protective Cap Included. • 15 m Vented Cable Standard. • Moisture Trap Included [See More]
- Features: Temperature Compensated; Submersible
- Sensor Technology: Mechanical Deflection
- Signal Output: Analog Current
- Pressure Measurement: Gauge
from American Sensor Technologies, Inc. - AST
The AST4710 is built for applications requiring absolute pressure measurement of liquids and gases that are compatible with stainless steel. Due to its stainless steel construction, welded housing and high shock and vibration ratings, the AST4710 translates into a rugged, reliable absolute pressure... [See More]
- Features: Temperature Compensated; Submersible
- Sensor Technology: Strain Gauge; Semiconductor Piezoresistive; Utilizes MEMS
- Signal Output: Analog Current; Frequency (optional feature)
- Pressure Measurement: Gauge; Compound (optional feature); Sealed (optional feature)
from Trafag Inc.
Main Features. Low pressure ranges (to 100mbar). No media contacting O-rings. PUR or Teflon ® cables. EMC protection, IEC 61000. Option: chemical resistant material, e.g. Titanium. Option: lightning protection (IEC 61000-4-5) [See More]
- Features: Submersible
- Sensor Technology: Semiconductor Piezoresistive
- Signal Output: Analog Current
- Pressure Measurement: Gauge
from Viatran
Viatan's rugged Model 555 pressure transmitter is built to provide accurate stable measurement in extremely harsh, abrasive environments. [See More]
- Features: Temperature Compensated; Submersible
- Sensor Technology: Diaphragm
- Signal Output: Analog Current
- Pressure Measurement: Absolute
from VEGA Americas, Inc.
Application area. The hydrostatic absolute pressure transmitter with ceramic measuring cell is ideal for level measurement of water/wastewater, as well as level measurement in deep wells or in tanks on ships. Maximum cable length = 1000 m. The VEGAWELL 52 is suitable for continuous level measurement... [See More]
- Features: Intrinsically Safe; Submersible
- Working Pressure Range: 0.0 to ?
- Signal Output: Analog Current
- Operating Temperature: -40 to 176
from Gems Sensors & Controls
Gauge and Absolute Pressure. Submersible, General Purpose and Wash Down Enclosures\. The 6700 series pressure sensors features customer accessible 5:1 turndown via a switch and potentiometer. Down ranging whether factory or user adjusted is ideal for applications requiring high overpressure. The... [See More]
- Features: Intrinsically Safe; Submersible
- Sensor Technology: CVD Sensing Technology
- Signal Output: Analog Current
- Pressure Measurement: Absolute; Gauge
from ifm electronic gmbh
Low-cost, simple level measurement. Pressure compensation via internally vented cable. Reduced wiring complexity when operated as two-wire current loop. High overall accuracy and long-term stability. Robust stainless steel housing with high ingress resistance [See More]
- Features: Submersible
- Pressure Measurement: Gauge; Vacuum
- Signal Output: Analog Voltage; Analog Current; analogue signal
- Working Pressure Range: 0.0 to 3.63
from OMEGA Engineering, Inc.
• All Stainless Steel Casing. • Hermetically Sealed Housing. • Protective Cap Included. • 15 m Vented Cable Standard. • Moisture Trap Included [See More]
- Features: Temperature Compensated; Submersible
- Sensor Technology: Mechanical Deflection
- Signal Output: Analog Current
- Pressure Measurement: Gauge
from American Sensor Technologies, Inc. - AST
With an overall length of less than two inches and a diameter of 0.7 inches, the AST4800 is the perfect solution for pressure measurement in confined areas. Utilizing AST's patented Krystal Bond Technology, the sensing element is free of welds, oil-fill, and internal o-rings. [See More]
- Features: Temperature Compensated; Submersible
- Sensor Technology: Strain Gauge; Semiconductor Piezoresistive; Utilizes MEMS
- Signal Output: Analog Current; Frequency (optional feature)
- Pressure Measurement: Gauge; Compound (optional feature); Sealed (optional feature)
from Viatran
The Viatran family of low power pressure transmitters brings the rugged design you have come to expect from Viatran oil and gas solutions. In the middle of the dessert, in the arctic or wherever measurement is required and power is in short supply but accuracy and reliability can't be sacrificed, a... [See More]
- Features: Temperature Compensated; Submersible
- Sensor Technology: Strain Gauge
- Signal Output: Analog Voltage
- Pressure Measurement: Absolute
from VEGA Americas, Inc.
Application area. For level measurement of liquids and corrosive media. Maximum sensor length: Cable 250 m, tube 6 m. Can be combined with any other sensor of VEGABAR Series 80 for electronic differential pressure measurement. The VEGABAR 87 is a pressure transmitter for pressure and level... [See More]
- Features: Intrinsically Safe; Submersible
- Pressure Measurement: Differential
- Signal Output: Analog Current; PROFIBUS®; FOUNDATION
- Working Pressure Range: 0.0 to ?
from Viatran
Viatran's 570 pressure sensor is used in industrial applciations including offshore oil rigs, gas compressors, paint spraying, natural gas pipelines, chemical processing, etc. A better alternative to conventional process transmitters in a reliable, cost-effective design. The 570 pressure transducer... [See More]
- Features: Intrinsically Safe; Temperature Compensated; Submersible
- Sensor Technology: Strain Gauge
- Signal Output: Analog Current
- Pressure Measurement: Absolute; Gauge