How to judge the quality of industrial pH meter?
With the popularity of industrial pH meters, more and more users are beginning to care about the quality of industrial pH meters. From a usage perspective, the quality judgment of industrial pH meters is mainly reflected in:
1. Accuracy: An industrial pH meter without accuracy has no use value. The way to judge is to use high-precision instruments or high-precision standard solution calibration.
2. Stability: It is difficult to read an unstable industrial pH meter. The stability is reflected in two aspects. On the one hand, it is the stability of a single industrial pH meter. The same industrial pH meter can be placed in a stable solution for a long time to see the value. Whether it changes and how much it changes; on the other hand, for the stability of multiple industrial pH meters, put several calibrated industrial pH meters of the same model into the same stable solution to see if the readings are consistent and what is the error? If several calibrated industrial pH meters of the same model are If the stability of industrial pH meters cannot be guaranteed, it will be difficult to ensure the accuracy and stability of each industrial pH meter.
3. Common error adjustment: Temperature is the most obvious factor causing pH error. The presence or absence of a temperature probe and the sensitivity of the temperature probe also affect the use of industrial pH meters.
Industrial pH meters are professionally supplied by Shanghai Kuosi Electronics Co., Ltd. Qingdao Office
4. Easy to operate and beautiful interface: It is relatively easy for users to judge this aspect. Some old-style industrial pH meters use analog switches, which makes calibration difficult. Small changes are not easy to detect and can easily produce fatal system errors. On the other hand, considering cost and technical reasons, many instruments use LED digital tubes, and the display content is not rich enough. Of course, some manufacturers have made up for this shortcoming through certain channels. At present, the most commonly used interface for convenient operation is LCD liquid crystal display + keyboard operation.
5. Advantages and disadvantages of PH electrode: There is no doubt about this. The performance of the electrode directly affects some technical indicators of the industrial pH meter. No matter how superior the industrial pH meter is, it will be useless if it is equipped with inferior electrodes.
