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All environmentalists, chemists and biologists know that the important factor of a successful gardening is measuring pH levels. A pH meter is a valuable tool to measure pH levels while plant growing, creating an ideal environment for your harvest and plants. To determine the pH level correctly, the pH equipment needs to be calibrated from time to time depending on the critical measurements.
pH meters need a proper calibration, to determine the pH level of the solution precisely. There are several critical issues that we should point out to understand why the calibration is an important part of working with the pH meter.
pH characteristics may change occasionally, especially when the device starts to point to the aging signs of the electrodes. If you calibrate the pH meter periodically, such signs will be denied.
False measurement results are the most common problem with the device. Luckily, it can be prevented by the calibration. Occasional calibrations help the pH meter to achieve precise measurement results.
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1 | Test the pH electrode for damages. If it is damaged, change or fix it. Clean the pH electrode if it is necessary. wash the sensor with purified water. You have to do it even if you don’t need to clean it, to take away everything that can pollute the solution you want to measure by the next step. |
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To prevent your pH meter from pollution, probes should always be clean before and during the storage. Before the first use and changing pH buffers or samples wash the electrode with a purified water.
Rapid temperature variation and other immediate parts of the working process may cause unwanted harm. After making the measurements, you should clean probes and electrodes immediately and put them into storage.
Store the probe in solutions such as 4M KCL, pH of 4 or pH of 7. Never let the probe dry or stop working precisely. It may damage the work of the electrodes. Store your pH meter as it is recommended in the instructions. It is significant for most pH meters to store them wet in the certain solution.
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Each brand and model of the pH meters have its own requirements according to the storage of the device. Follow the instructions properly and it will work for a long durable period of time.
Most pH meters’ sensors have a life-term of nearly 1-2 years. When you get unsteady pH level measurements and have troubles in calibrating, it may seem to change the pH sensor or the device.
Never touch electrodes with your hands, it may affect the readings and in some cases even damage the device. The pH meter is a very sensitive instrument that should be treated in such a way.