Dary Electric recommends
DC Resistance Rapid Tester 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), supports both AC and DC power, making it convenient for on-site and field testing. The product complies with the requirements of DLT845.3-2004 "General Technical Conditions for Resistance Measuring Devices Part 3: DC Resistance Tester".
Working Principle
The DC Resistance Rapid Tester contains a constant current source that can generate DC current. When measuring resistance, the constant current is fed from the I+ and I- terminals to the test object. This current produces a corresponding voltage across the measured object. This voltage is retrieved from the V+ and V- terminals back to the instrument, amplified, and then directly displayed on a 4.5-digit LCD as the resistance value of the test object.
Product Features
1. Fast test speed: DC Resistance Rapid Tester has a maximum output charging current of 1A, which can effectively compensate for the current inertia of large inductive equipment, accelerate core saturation, thereby shortening charging time and improving test speed. It is hundreds of times faster than traditional single-arm and double-arm bridges.
2. High accuracy: This instrument not only adopts the advanced four-terminal measurement method, but also uses advanced constant current power supply technology, which maintains a relatively stable charging current for inductive loads, ensuring stable anti-inductance capability and strong anti-interference, thereby ensuring measurement accuracy. It also uses high-quality imported components, ensuring high measurement accuracy and good repeatability.
3. Wide measurement range: The resistance measurement range is 1μΩ to 2KΩ, covering a wide range.
4. Dual AC/DC power supply: This instrument is equipped with a rechargeable battery pack, supports both AC and DC power, and features a portable design, making it easy to use and carry.
Precautions
1. After using the DC power for testing, the internal battery should be charged and maintained in a timely manner.
2. During DC testing, if the low voltage indicator light is on, stop using DC power and switch to AC power for testing.
3. If the instrument is not used for a long time, the battery pack should be charged and maintained regularly, typically for about 14 hours, until the "Full" indicator light turns on.
4. The instrument should be protected from moisture, dropping, and prolonged exposure to sunlight.
Note: The above information and technical parameters are compiled and released by Yangzhou Dary Electric Co., Ltd.
