Selection of Automatic Ranging Clamp Multimeters
At present, there are a wide variety of clamp type multimeters on the market, with a dazzling array of manufacturers and models. I really don't know which one is suitable for my measurement needs. One is cheap and mostly of miscellaneous brands. This type of meter has a single function, with only one or two ranges for AC and DC, and is used for simple testing. The cheaper the product, the harder it is to guarantee quality. The second type; Used for power testing professional pliers, mostly imported products, characterized by high prices, often costing thousands of yuan. The third type falls between the two, with prices ranging from 100 yuan to 300 yuan. It is recommended to choose an automatic range meter when purchasing a digital clamp meter. The reason is that it uses a dedicated chip, has a simple peripheral circuit, improved reliability, complete functions, and protection against easy burning of the meter. For example, the VC3267 series automatic range clamp meter can measure AC currents from 2A to 600A with a resolution of 1mA. For home appliance repairers, even low-power appliances can be measured. The resistance ranges from 0.1 ohms to 20M; both AC and DC voltages range from 0.1mV to 600V. For easy maintenance, temperature measurement is also included. It basically summarizes the functions of all multimeters and is extremely convenient for on-site maintenance. The above functions are still not enough. You can choose VC3267A, which is a 3 3/4 position automatic range clamp meter with a maximum display of 3999, to increase frequency and duty cycle measurement. The price is within 160 yuan.
When it comes to choosing a high current automatic range clamp meter, it is worth recommending the VC3215C, which has an AC current range of up to 1500A and can measure up to 2000A in a short time. Its unique AC power verification automatic lighting has pioneered this feature. When the clamp meter approaches the tested switch or current wire, the AC voltage or current is sensed by the clamp head sensor, which lights up the LED to achieve the purpose of illumination or safety alarm and live wire discrimination. VC3215C also has temperature measurement function and maximum value recording. The price is over two hundred yuan. Because the automatic range clamp meter has all the functions of a multimeter, it can be used for multiple purposes and is not expensive, which is worth considering.
