How do you select the right level measurement technology for a high-temperature process vessel?

1 Process conditions

The first factor to consider is the process conditions of the vessel, such as the temperature, pressure, density, viscosity, and composition of the fluid. These factors can affect the accuracy, stability, and durability of the level measurement technology. For example, high temperatures can cause thermal expansion, vaporization, or degradation of the fluid, which can alter its level or density. High pressures can also affect the fluid properties, as well as the performance of the level sensor. Therefore, you need to select a level measurement technology that can withstand the process conditions and provide consistent and reliable readings.

2 Installation and maintenance

The second factor to consider is the installation and maintenance requirements of the level measurement technology. Depending on the design and location of the vessel, you may have limited space, access, or mounting options for the level sensor. You also need to consider the wiring, piping, and power supply requirements, as well as the calibration and cleaning procedures. Some level measurement technologies are easier to install and maintain than others, and some may require special tools, equipment, or personnel. Therefore, you need to select a level measurement technology that suits your installation and maintenance capabilities and budget.

3 Output and interface

The third factor to consider is the output and interface of the level measurement technology. Depending on your control system and operational needs, you may need a level measurement technology that provides a specific type of output signal, such as analog, digital, or HART. You may also need a level measurement technology that has a user-friendly interface, such as a display, a keypad, or a software. Some level measurement technologies can also offer additional features, such as diagnostics, alarms, or data logging. Therefore, you need to select a level measurement technology that meets your output and interface preferences and expectations.

4 Accuracy and range

The fourth factor to consider is the accuracy and range of the level measurement technology. Depending on your process requirements and quality standards, you may need a level measurement technology that can measure the level of the fluid with a high degree of precision and repeatability. You may also need a level measurement technology that can measure the level of the fluid over a wide range, from low to high levels. Some level measurement technologies are more accurate and versatile than others, and some may have limitations or trade-offs. Therefore, you need to select a level measurement technology that delivers the accuracy and range that you need.

5 Cost and availability

The fifth factor to consider is the cost and availability of the level measurement technology. Depending on your project schedule and budget, you may need a level measurement technology that is affordable and readily available in the market. You may also need to consider the life cycle cost of the level measurement technology, which includes the initial purchase, installation, maintenance, and replacement costs. Some level measurement technologies are more expensive and scarce than others, and some may have longer or shorter life spans. Therefore, you need to select a level measurement technology that fits your cost and availability constraints and goals.

7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?