| ZZC-1A DC Resistance Meter |
This product is a high-precision replacement for DC single and double bridge ohmmeters. It adopts advanced switching power supply technology, and its measurement speed is more than a hundred times faster than that of bridges. The display part uses a 4.5-digit LCD to show measurement results, and a 3.5-digit LCD to show ambient temperature or test current value, overcoming the disadvantage of other similar products with LED displays that are not easy to read in sunlight. It also has an automatic arc suppression function. This instrument has the advantages of fast measurement speed, high accuracy, intuitive display, strong anti-interference capability, small size, low power consumption, stable and reliable test data, and is not affected by human factors. The instrument is equipped with a rechargeable battery pack (12V), and can be used with both AC and DC power, making it convenient for field and outdoor testing.
This product complies with the requirements of DLT845.3-2004 "General Technical Conditions for Resistance Measuring Devices Part 3: DC Resistance Tester".
Applications
It is an ideal instrument for measuring the DC resistance of various inductive loads such as power transformers, large motors, and instrument transformers, as well as the contact resistance of low-voltage switches, and the resistance of wire cables or weld joints.
Performance Features
1. Fast test speed: The maximum output charging current of this instrument can reach 1A. During measurement, it can effectively compensate for the current inertia of large inductive equipment, accelerate core saturation, thereby shortening charging time and improving test speed. It is several hundred times faster than traditional single and double bridge instruments.
2. High accuracy: In addition to adopting the advanced four-terminal measurement method, this instrument also uses advanced constant current power supply technology, keeping the charging current to inductive loads at a relatively stable value, with stable inductance resistance capability and strong anti-interference ability, thereby ensuring measurement accuracy. It also uses high-quality imported components, resulting in high measurement accuracy and good repeatability.
3. Wide measurement range: The resistance measurement range is 1μΩ to 2KΩ, covering a wide range.
4. AC/DC dual use: This instrument has a built-in rechargeable battery pack, supports both AC and DC power supply, and is portable for easy use and carrying.
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