What does a water measuring pen mainly test?
In today's society, water quality safety has attracted increasing attention. As a convenient water quality testing tool, water testing pens are widely used in homes, laboratories and industries. So, what does a water test pen mainly test? This article will give you a detailed analysis of the functions, principles and common application scenarios of water measuring pens.
1. Basic functions of water measuring pen
Water measuring pens are mainly used to detect key indicators in water to help users quickly understand water quality conditions. The following are common test items for water test pens:
| Test items | Description |
|---|---|
| TDS (total dissolved solids) | Measures the total amount of dissolved minerals, salts, and other solid matter in water in ppm (parts per million). |
| Conductivity | It reflects the conductivity of water and is closely related to the TDS value. The unit is μS/cm. |
| temperature | Measure the real-time temperature of water in ℃ or ℉. |
| pH value | Test the pH of water, which usually ranges from 0-14, with 7 being neutral. |
2. Working principle of water measuring pen
The working principle of the water measuring pen is mainly based on electrochemistry and sensor technology. The following is the core technology of the water measuring pen:
| Technology | Principle |
|---|---|
| TDS detection | By measuring the conductivity of water, the total amount of dissolved solids is calculated indirectly. |
| pH test | Use glass electrodes or semiconductor sensors to detect the hydrogen ion concentration in water. |
| Temperature detection | Built-in thermistor or thermocouple to monitor water temperature in real time. |
3. Application scenarios of water measuring pen
Water measuring pens are widely used in the following scenarios due to their portability and rapid detection capabilities:
| scene | Purpose |
|---|---|
| household water | Test the water quality of tap water and water purifier to ensure the safety of drinking water. |
| laboratory | Used for water quality analysis in scientific research or teaching experiments. |
| industrial production | Monitor water quality changes in industrial water or wastewater treatment processes. |
| agricultural irrigation | Test the TDS and pH value of irrigation water to avoid affecting crop growth. |
4. How to choose a water measuring pen
There are many types of water measuring pens on the market. When choosing, you should pay attention to the following points:
| factors | Suggestions |
|---|---|
| Detection range | Choose a water test pen with functions such as TDS, pH or temperature according to your needs. |
| Accuracy | High-precision water measuring pens are suitable for professional use, and cost-effective products are available for ordinary household use. |
| Brand and after-sales | Choose well-known brands to ensure product quality and after-sales service. |
5. Precautions for using water measuring pen
In order to ensure the accuracy and service life of the water measuring pen, please pay attention to the following matters when using it:
| Things to note | Description |
|---|---|
| Regular calibration | The pH water measuring pen needs to be calibrated regularly to avoid data deviation. |
| avoid contamination | Clean the probe promptly after use to prevent residues from affecting the next detection. |
| Storage environment | Avoid high temperature, humidity or strong magnetic field environment to extend the service life. |
6. Conclusion
As a practical water quality testing tool, the water measuring pen can help users quickly understand water quality conditions and ensure water safety. Whether in the home, laboratory or industry, water measuring pens play an important role. I hope that through the introduction of this article, you can better understand the function and use of water measuring pens, and protect your health and quality of life.
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