The ohmmeter is mainly used to measure the resistance value of resistors. The ohmmeter has the comparator function necessary for component test classification. The ohmmeter can be tested manually or by system application, and can perform fast sampling, temperature compensation and automatic range selection at 16 times per second, and can select versions according to different uses. The reliable connection between the grounding lead of power equipment and the ground grid is the fundamental guarantee for the safe operation of power equipment and the personal safety of operators. This product is an essential testing equipment for the power, telecommunications, petrochemical, railway, metallurgy and other industries.
Reference address:Detailed description of the 8 characteristics of resistance meters
Resistance meter features:
1. Powered by dry batteries.
2. Use the different frequency small current method to test without AC interference.
3. The use of new technologies such as DDS, digital frequency selection, comb filtering, etc. ensures test accuracy.
4. Can test pure resistance (equivalent to micro-ohm meter).
5. Large capacity data storage.
6. Using large screen LCD, the display interface is beautiful and easy to understand.
7. Self-recovery over-current/over-heat protection function makes the instrument safer to use.
8. Portable design, small size, light weight, easy to carry.
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Recommended ReadingLatest update time:2024-11-17 00:35
Difference between Op Amp and Comparator
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The constant current and constant voltage in the power supply are achieved by connecting the op amp to negative feedback. There is also a device with a structure very similar to the op amp, which is used for protection purposes, that is the comparator. There are many types of comparators, the most commonly used
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The main power supply and backup battery are connected to the load through a simple diode "OR" logic circuit. However, when the battery voltage exceeds the main power supply voltage, the diode "OR" logic circuit will connect the battery power supply and cannot reasonably select the main power supply. The circuit in
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