There are many types of conductivity meters, which can be divided into portable conductivity meters, benchtop conductivity meters and pen conductivity meters. According to the use, it can be divided into: laboratory conductivity meter, industrial online conductivity meter and so on. According to the advanced degree, it is divided into economical conductivity meter, intelligent conductivity meter, precision conductivity meter or pointer type conductivity meter, digital display conductivity meter. How can we buy so many types of conductivity meters? Shanghai Bayu teaches you how to choose a conductivity meter, please browse the following carefully. First, select the instrument according to the range of the measured value 1. When measuring low conductance value (conductance value less than 10μS), optional pure water conductivity meter; or titanium electrode with temperature coefficient adjustable conductivity meter with 0.01 specification constant; or conductivity meter with adjustable temperature coefficient with 0.01 specification constant Titanium electrodes should be measured using closed flow conductance. 2. The conductivity value is greater than 10μS and less than 100μS. An optional smart conductivity meter with adjustable temperature coefficient can be purchased. 3. The smart conductivity meter can be selected when the conductance value is greater than 100μS. 4. When the conductance value is higher, it should be compensated according to the temperature coefficient of the main ions in the water. The smart conductivity meter with adjustable temperature coefficient should be selected. Second, according to the measured environmental conditions or special requirements, you can choose portable, desktop and online instruments At present, some portable instruments produced by some companies are greatly affected by the battery voltage. When using new batteries, the measurement accuracy is high, but as the voltage is lowered, the accuracy is also reduced, and the battery should be replaced in time. Third, according to the convenience of the instrument to choose At present, the general instruments on the market do not have the functions of data storage, etc. Some individual microcomputer-type instruments produced by some manufacturers need to use battery power to save data, which is very inconvenient to use. The “+†series conductivity meter has the function of setting and correcting data storage. After setting and calibration (calibration), it can be turned off for a period of time and then used. If the electrode is not replaced, the sample can be directly tested without setting and correcting (calibration). For users who need to save test data or print and connect to the computer. Fourth, according to the instrument function and cost-effective selection of measuring instruments In the case of similar prices, priority should be given to intelligent instruments with simple functions, automatic storage settings and calibration data, automatic range conversion, automatic temperature compensation and temperature measurement. Fifth, according to the manufacturer to choose You should choose a regular manufacturer and a good brand. When purchasing an instrument, first check whether the product has a production license for measuring instruments; second, see if the company has development and innovation capabilities; and see if the company can provide excellent after-sales service and application technical support. Sixth, according to the measurement accuracy requirements to choose The accuracy level of the conductivity meter is determined by the ratio of the maximum error of the test to the full scale value of the range, the so-called "reference error". For example, Class 0.5, Class 1.0, Class 1.5, Class 2.0 instruments have a reference error of 0.5%, 1.0%, 1.5%, and 2.0%, respectively. If the full scale of the instrument is 200μs/cm, the maximum test error of the 2.0-level instrument is ±4μs/cm. If the full scale of the instrument is 20μs/cm, the maximum error of the 2.0-level instrument test is ±0.4μs/cm. The user should according to the measurement accuracy requirements. Select the appropriate level of conductivity meter. At the same time, for manual conversion of multi-range instruments, in order to get the minimum test error, try to select the test in the low-range file. The above is the full content of "Shanghai Baxue teaches you how to buy conductivity meter". If you want to know more about conductivity meter information, you can contact Shanghai Baqi Industrial Co., Ltd. at any time! Veterinary Drugs,List of veterinary drugs,effective veterinary drugs SINOCHEM PHARMACEUTICAL CO., LTD , https://www.sinochemnutrition.com
Conductivity meter purchase guide