When choosing the right model of explosion-proof ultrasonic level meter, you need to consider a number of factors.Here are some key steps and points to help you make an informed choice:
Define the measurement needs:
Determine the type of medium to be measured (e.g., clear water, sewage, diesel, crude oil, etc.) and its characteristics (e.g., the presence of vapors, mists, foams, etc.).
Specify the measurement range (e.g., 5m, 10m, 15m, etc.) and the size of the blind zone required (usually between 0.25m and 0.6m).
Consider the work environment:
Know the temperature range of the working environment (e.g. -20℃ to +60℃) to determine whether the level meter can work properly.
Pay attention to the working pressure and corrosiveness, especially for the medium inside the tank, you need to know the material of the tank and whether it has anti-corrosion lining.
Explosion and corrosion protection requirements:
According to the explosion-proof requirements of the use of the environment, select the appropriate explosion-proof grade and sealing grade equipment.
If the medium is corrosive, it is necessary to choose probes and housing materials (e.g. PVDF) with anti-corrosion features.
Technical parameters:
Accuracy: Select the appropriate accuracy according to the measurement requirements, usually between 0.25% and 0.5%.
Resolution: Ensure that the resolution of the selected device can meet the measurement requirements, and the common resolution is 1mm.
Output Signal: Select 4～20mA current, RS485/Modbus protocol or other communication output methods according to the system requirements.
Installation and maintenance: Consider the installation method (such as bracket mounting, flange or nut fixing, etc.) and wiring method (two-wire or four-wire) of the instrument.
Understand the instrument commissioning methods and parameter settings, as well as after-sales service support.
Special environmental considerations:
If used in extreme temperatures, in mine-prone areas or in the presence of corrosive gases, it is necessary to select equipment with the appropriate protection and it may be necessary to install additional lightning protection.
If there is agitation, waves or foam in the medium, you need to choose equipment with the appropriate processing capabilities or consult a technical service department.
Comprehensive assessment:
When choosing the model of explosion-proof ultrasonic level meter, you should comprehensively consider the measurement requirements, working environment, technical parameters and installation and maintenance, and choose the most suitable equipment for your needs.
You can refer to the technical parameters and performance indicators of different brands and models of explosion-proof ultrasonic level meter to compare and analyze, in order to make a more informed decision.
