The handheld Dissolved Oxygen Meter is a portable instrument used to measure the dissolved oxygen concentration in water. The following are the key points and precautions for choosing a handheld Dissolved Oxygen Meter:
select points
Measuring range: Different models of handheld Dissolved Oxygen Meters have different measuring ranges, and it is necessary to select the appropriate model according to actual needs.
Precision and Accuracy: The precision and accuracy of a Dissolved Oxygen Meter are important considerations in selection. Generally speaking, high-precision Dissolved Oxygen Meters require higher costs. You need to choose according to your actual needs and budget.
Response time: Different models of handheld Dissolved Oxygen Meters have different response times. You need to choose the reaction time that suits you.
Display mode: The display mode of the handheld Dissolved Oxygen Meter generally has two types: digital display and liquid crystal display. The digital display is intuitive and clear, but it can only display the concentration value; the liquid crystal display can display more parameters and graphs.
Software and functions: Some handheld Dissolved Oxygen Meters have data recording and storage functions, which can save and process data conveniently. Some instruments also have other functions, such as automatic temperature compensation, temperature measurement, pH measurement, etc.
Precautions
Calibration: Calibration is required before use to ensure accuracy. For the calibration method, please refer to the instrument manual.
Cleaning: After use, it needs to be cleaned and disinfected in time to avoid residues from interfering with the next use.
Storage and maintenance: Hand-held Dissolved Oxygen Meters that are not used for a long time need to be stored in a dry, ventilated, and dust-proof place. At the same time, pay attention to the battery power and replace the battery in time.
Waterproof and dustproof: Hand-held Dissolved Oxygen Meters are often used in water, so it is necessary to choose an instrument with waterproof and dustproof functions to ensure the long-term use of the instrument.
