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Ready to ShipAn underground tank level sensor comes in various types to meet different needs. This diversification ensures that there is an appropriate sensor for almost every tank setup, whether it be for residential heating oil, industrial use, or environmental monitoring.
These sensors measure liquid levels by sending out ultrasonic waves. The waves then bounce back after hitting the liquid surface. The device then calculates the level based on how long the waves took to return. Ultrasonic sensors work well for most liquids except those with surfaces that create vapour, steam, or foam. They are also unsuitable for tanks with internal obstacles. However, they are often used because they are affordable, accurate, and easy to install.
These sensors measure the liquid's dielectric constant and, by extension, the tank's content. As the liquid level changes, so does the capacitance, which helps derive the liquid level. Capacitance sensors are great for measuring low and high liquid levels in thick and thin tanks. They measure both conductive and non-conductive liquids.
These sensors work the same way as ultrasonic sensors by measuring time. But instead of sound waves, they use microwave radar waves to measure liquid levels. The main benefit of radar sensors is that they work well even when there are vapours, foam, or tank obstructions. They can also be used in high-temperature and high-pressure environments. Radar sensors also offer greater accuracy than ultrasonic sensors.
Pneumatic sensors are more sensitive than their ultrasonic counterparts, as they use air pressure rather than sound waves. These sensors operate well in tanks with internal stirrers or heavy liquid deposits. They are also suitable for use in vacuum chambers and high-temperature environments. Unfortunately, the complex installation process and fragility of pneumatic sensors limit their application.
When selecting an underground oil tank monitor, buyers should consider various features of the sensors.
The measurement range indicates how deep or how wide the liquid space the sensor can measure is. Conventional ultrasonic sensors can measure levels from 1 meter to 10 meters. However, there are also sensors that come with longer measurement ranges. These are often more humidity- or temperature-prone, so it is always important to establish whether one really requires a longer range.
Accuracy determines how precisely the sensor can measure the liquid level. For example, ultrasonic sensors are usually accurate to within 1cm. Meanwhile, radar sensors can be more accurate than 1cm. In applications where consistent liquid levels are required, it is reasonable to invest in more precise sensors.
Radar tank sensors feature materials such as stainless steel, plastic, or composites. Buyers should ensure the sensor material can withstand the corrosive nature of the liquids that will be inside the tanks. For example, if the tank stores chemicals that may react with metal, plastics or composite sensors will work best.
A tank level sensor's power sourcing usually comes from battery, AC, or solar power. Another alternative is a power source derived from other means. Selecting a sensor with the right power source is crucial, especially in areas where power supply is limited. For instance, battery-powered sensors need frequent battery replacement. These can become inconvenient in huge installations.
Tank sensors play a vital role in many commercial and industrial settings. This is because they help monitor liquid levels in underground tanks while ensuring safety, efficiency, and cost savings.
In the oil and gas industry, tank sensors monitor crude oil and fuel levels and keep things running smoothly. They enable companies to schedule fuel deliveries well, preventing expensive outages or spillovers. They also help identify leaks or irregularities in tanks, protecting assets and the environment.
In water and wastewater treatment plants, sensors monitor water levels in storage tanks and treatment basins. They help maintain proper water levels for treatment and distribution, preventing system failures. By detecting overflows or tank issues, sensors protect against environmental problems and expensive repairs. They also allow remote monitoring and control, reducing field visits.
Tank sensors are also used in agriculture to track liquid fertiliser and water levels in storage tanks. They help farmers manage tank supplies, ensuring timely refilling for irrigation and fertilisation without interruption. Sensors also track tank conditions, preventing damage from extreme temperatures. By automating monitoring, sensors reduce tedious manual checks and improve efficiency.
In manufacturing, tank sensors track the levels of raw materials and chemicals used in production. They help manufacturers maintain steady supplies, preventing production delays due to shortages. Sensors also monitor tank conditions to ensure safety and efficiency. They enable better inventory management, reducing costs associated with overstocking or understocking.
Level sensors monitor liquid levels in storage tanks used for water, milk, juices, and other beverages. They ensure consistent production by preventing shortages or overflows. Sensor data helps manage tank conditions for safety and quality preservation. They also optimise cleaning schedules for tanks, improving efficiency while maintaining hygiene.
When selecting tank gauges, buyers often consider several factors. Here are some of the most common when choosing underground tank sensors:
When choosing a tank sensor, consider the liquid's characteristics. These might be the liquid's density, viscosity, or dielectric constant, for instance. Simple sensors, such as pressure transducers, are suitable for straightforward liquids such as water and fuel oil. Meanwhile, more complex liquids, such as chemicals with varying densities or those that produce vapour, require complex sensors such as ultrasonic or radar sensors. These are capable of accurately measuring the liquid level amid turbulent conditions.
Hope ultrasonic sensors work best in simple, cylindrical tanks. On the other hand, adhesive sensors fit better in cubical or irregularly shaped tanks. Likewise, capacitive and conductive sensors require direct contact with the liquid. This means they are better suited for use in tanks that deal with non-standard liquids. It's worth noting that while the tank shape may not impact the sensor's functionality, its material can affect the sensor's ability to withstand corrosive environments.
Tank sensors' environmental condition factors are temperature, pressure, and exposure to chemicals or vapours. These conditions could affect the sensors' accuracy, lifespan, or even functionality. For example, pressure sensors may be required for high-pressure storage tanks. In underground tanks, radar sensors can function effectively in harsh chemical environments without exposure to the chemicals directly.
Consider the required measurement range and level of accuracy. While pressure sensors are accurate down to 1% of the full scale, capacitive and ultrasonic sensors can be more precise. Additionally, some radar sensors cater to long measurement ranges. The measurement range refers to the distance between the lowest and highest liquid levels in the tank. Ensure the sensor can accommodate the entire range.
A: Its role is to monitor the liquid level within underground tanks. It helps provide real-time data on the tank's contents while ensuring safety, efficiency, and cost savings through early leak detection, prevention of overflows, and aid in timely maintenance and refilling.
A: Ultrasonic sensors use sound waves to measure liquid levels. In contrast, radar sensors utilise microwave electromagnetic waves to perform the same task. As a result, radar sensors work better in harsh chemical environments and are suitable for high-precision measurements.
A: While many are designed for durability, regular checks can ensure long-lasting performance. The maintenance required for each sensor depends on the environmental and operating conditions.
A: By providing accurate real-time data on liquid levels, they enable early identification of anomalies such as unexpected increases or decreases in levels. This precision helps detect leaks promptly and prevents overflow.
A: Yes, many sensors, such as radar and capacitive sensors, are designed to function effectively in high-temperature and low-temperature environments. These sensors can also withstand high-pressure conditions in underground tanks.
