Pressure Membrane Level Transmitters
Description
Pressure membrane level transmitters are devices used to measure the level of liquid within a tank or vessel. They function by detecting the pressure exerted by the liquid column above the measurement point and converting this pressure into a readable signal that indicates the liquid level.
Working Principle
Pressure membrane level transmitters operate based on the principle that the pressure exerted by a liquid column is directly proportional to the height of the liquid. The transmitter measures this pressure and, using the known density of the liquid, calculates the liquid level. This method is particularly useful because it provides continuous level measurement and can be adapted to various tank configurations and liquid types.
Applications
Pressure membrane level transmitters are widely used in various industries. For example, they are employed in the chemical industry to monitor the levels of corrosive liquids in closed tanks. They are also used in the food and beverage industry to ensure accurate levels of ingredients in mixing tanks. Additionally, these transmitters are crucial in water treatment facilities for maintaining the correct levels in storage tanks.
Advantages over other Level Transmitters
One of the key advantages of pressure membrane level transmitters is their ability to provide accurate measurements in closed tanks where other methods might fail due to vapor or pressure above the liquid. They are also beneficial in applications involving high-temperature or corrosive fluids, where other sensors might degrade quickly.
Limitations
A significant limitation of pressure membrane level transmitters is their dependency on the liquid's density. Any variation in density can lead to inaccurate level readings. Additionally, these transmitters may not be suitable for applications involving highly viscous or solidifying fluids, as these can obstruct the pressure connection.
Considerations
When selecting a pressure membrane level transmitter, it is important to consider the initial cost and the operating expenses associated with the device. Durability is another critical factor, especially in harsh environments. The accuracy of the transmitter is paramount, and potential users should ensure that the device can maintain accuracy over time. Replacement and maintenance costs should also be evaluated, as these can impact the overall cost-effectiveness of the solution.
from RS Components, Ltd.
LS-10 ; 0 bar ... 1 bar; 4 ... 20 mA, 2 [See More]
- Meter Technology Type: Pressure Membrane; Other (Such as tilt etc.)
from RS Components, Ltd.
LS-10 ; 0 bar ... 0,4 bar; 4 ... 20 mA, [See More]
- Meter Technology Type: Pressure Membrane; Other (Such as tilt etc.)
from RS Components, Ltd.
LS-10 ; 0 bar ... 0,25 bar; 4 ... 20 mA, [See More]
- Meter Technology Type: Pressure Membrane; Other (Such as tilt etc.)
from RS Components, Ltd.
DeltaSpan Submersible Sensor 1.38 Bar [See More]
- Meter Technology Type: Pressure Membrane; Other (Such as tilt etc.)
- Operating Temp: -0 to 151
from Keller America, Inc.
The DCX-38 VG is an autonomous instrument for recording water level with a high resolution and full scale ranges as low as 0,5 mWC / 50 mbar. It features a rugged, gold-plated ceramic diaphragm for outstanding long-term stability and stainless steel housing with user serviceable battery for long... [See More]
- Meter Technology Type: Differential Pressure Sensors; Pressure Membrane
- Level Measurement Type: Continuous Level
- Media Type: Liquid
- Maximum Operating Pressure: 4.35
from Viatran
Viatran's Model 350 level transmitter with Tri-clamp connections are all welded stainless steel, providing maximum protection against corrosion and high humidity. This product is an excellent choice for use in the sanitary market such as food and beverage and pharmaceutical. [See More]
- Meter Technology Type: Pressure Membrane
- Level Measurement Type: Continuous Level
- Media Type: Liquid
- Output Options: AnalogCurrent
from FineTek
EC Series is a hydrostatic pressure level transmitter product line that uses piezoresistive technology and a Wheatstone bridge electrical circuit to measure the level of a fluid in a vessel and provide a variable analog output. ECX Pressure Level Transmitter, Hydrostatic Level Sensor, Liquid Level... [See More]
- Meter Technology Type: Pressure Membrane
- Output Options: AnalogCurrent
- Media Type: Liquid
- Measuring Range: 3936
from Keller America, Inc.
This instrument is based on the differential pressure measurement of two absolute sensors. The level sensor is connected by a cable to the electronics housing, which incorporates: the electronics with the latest µP-technology (16 Bit A/D converter), the waterproof mounted absolute pressure sensor... [See More]
- Meter Technology Type: Differential Pressure Sensors; Pressure Membrane
- Level Measurement Type: Continuous Level
- Media Type: Liquid
- Maximum Operating Pressure: 33.36
from Viatran
Viatran's Model 351 level transmitter with Tri-clamp connections are all welded stainless steel, providing maximum protection against corrosion and high humidity. This model is an excellent for the sanitary market such as the food and beverage industry and pharmaceutical industry. [See More]
- Meter Technology Type: Pressure Membrane
- Level Measurement Type: Continuous Level
- Media Type: Liquid
- Output Options: AnalogCurrent
from Keller America, Inc.
The DCX-22 is an autonomous, battery powered instrument made of stainless steel designed to record water depth (pressure) and temperature over long periods. Two versions are offered: DCX-22. The sensor, electronics and battery are housed in a sealed stainless steel tube, for submersible deployment. [See More]
- Meter Technology Type: Differential Pressure Sensors; Pressure Membrane
- Level Measurement Type: Continuous Level
- Media Type: Liquid
- Maximum Operating Pressure: 160
from Viatran
In food and dairy, pressure and level measurement applications, it's critical that the device adhere to the latest 3A standards for sanitary instrumentation. With the Model 363 pressure and level transmitter, you can be assured that sanitary standards are met or exceeded. [See More]
- Meter Technology Type: Pressure Membrane
- Level Measurement Type: Continuous Level
- Media Type: Liquid
- Output Options: AnalogCurrent
from Keller America, Inc.
The DCX-25 PVDF is an autonomous, battery powered instrument designed to record water depth (pressure) and temperature over long periods. The housing is made of polyvinylidene fluoride and the sensing diaphragm is available in either Hastelloy C-276 or titanium 6AL-4V. This combination of wetted... [See More]
- Meter Technology Type: Differential Pressure Sensors; Pressure Membrane; Other (Such as tilt etc.)
- Level Measurement Type: Continuous Level
- Media Type: Liquid
- Maximum Operating Pressure: 160
from Viatran
You need a product you can trust. Viatran has been consistently delivering pressure and level solutions for over 40 years. When you come on board with a Viatran unit, you can rest assured that you are getting a superior product for the same price. Viatran Model 364 pressure transmitter is just... [See More]
- Meter Technology Type: Pressure Membrane
- Level Measurement Type: Continuous Level
- Media Type: Liquid
- Output Options: AnalogCurrent
from Keller America, Inc.
The CTD versions of the DCX-22 range are autonomous battery-operated data collectors made of stainless steel. CTD stands for Conductivity, Temperature and Depth. Requiring little maintenance, they record the water level (pressure), temperature and conductivity over long periods. Conductivity is... [See More]
- Meter Technology Type: Electrical Conductivity or Resistance; Pressure Membrane
- Level Measurement Type: Continuous Level
- Media Type: Liquid
- Operating Temp: 14 to 104
from Viatran
The Model WW517 is a 316L liquid level transmitter with a 3" diameter opened faced Teflon coated sensor for waste water applications. [See More]
- Meter Technology Type: Pressure Membrane
- Level Measurement Type: Continuous Level
- Media Type: Liquid
- Output Options: AnalogCurrent
from Keller America, Inc.
The Levelgage submersible level transmitter provides outstanding performance in a wide array of applications, from water storage and distribution to wastewater. It offers your choice of analog outputs (current or voltage). The Levelgage is assembled in the U.S to customer specifications, including... [See More]
- Meter Technology Type: Differential Pressure Sensors; Pressure Membrane
- Level Measurement Type: Continuous Level
- Media Type: Liquid
- Output Options: AnalogVoltage; AnalogCurrent
from Keller America, Inc.
The Acculevel SDI high accuracy level transmitter incorporates microprocessor-controlled signal conditioning to provide outstanding accuracy over temperature. Like the original Acculevel, it provides dual outputs but both are digital; one SDI-12 and one RS485. Both allow users to retrieve both level... [See More]
- Meter Technology Type: Differential Pressure Sensors; Pressure Membrane
- Level Measurement Type: Continuous Level
- Media Type: Liquid
- Output Options: AnalogVoltage; AnalogCurrent
from Keller America, Inc.
The Microlevel combines the high accuracy of the Acculevel with a class-leading housing diameter of only 0.63". It incorporates Keller's proven microprocessor-controlled signal conditioning to provide outstanding accuracy over temperature. It provides dual outputs, one 4-20mA analog and one digital... [See More]
- Meter Technology Type: Differential Pressure Sensors; Pressure Membrane
- Level Measurement Type: Continuous Level
- Media Type: Liquid
- Output Options: AnalogVoltage; AnalogCurrent
from Keller America, Inc.
The Digilevel employs Keller's proven piezoresistive sensor technology coupled with an SDI-12 serial-digital interface for environmental level monitoring applications. The Digilevel is compatible with all SDI-12 v1.3 commands and capable of operating in several emulate modes for popular SDI-12... [See More]
- Meter Technology Type: Differential Pressure Sensors; Pressure Membrane
- Level Measurement Type: Continuous Level
- Media Type: Liquid
- Maximum Operating Pressure: 390