The Role of DC Resistance Tester
DCresistancetester adoptsmicrocontroller control, large-screen Chinese characterLCD display, with print output function (and 232interface). The eight gears of the instrument are all calibrated by software, with accuracy up to 1/10000. It can shift gears automatically.The machine is small in size, light in weight, low in power consumption, and the test data is stable and reliable. It is a high-precision replacement product for DC single-arm and double-armbridges. The DC resistance tester is an ideal instrument formeasuring the DC resistance of various inductive loads such as powertransformers, as well as the contact resistance of low-voltage switches,wirecable or weld joint resistance.
The DC resistance tester manufacturer is an ideal instrument for measuring the DC resistance of various inductive loads such as power transformers, large motors,mutual inductors, as well as the contact resistance of low-voltage switches, wire and cable or weld joint resistance.
The main use of the DC resistance tester is to test small resistance. Specific applications include: headphone manufacturers test headphones.Circuit board manufacturers test the copper resistance ofPCB boards, etc. Its main principle is constant current testing. The constant current source sends test signals. The three-phase DC resistance tester is the latest generation product for transformer DC resistance measurement, and it is an optimized test instrument designed for measuring the DC resistance of three-phase windings of large-capacity transformers.
It can test the DC resistance of the three-phase windings of the transformer simultaneously. When it reaches the tested object, it samples the voltage of the tested object, performs AD conversion on the sampled voltage, and sends it to the microcontroller system.
Functional Features of DC Resistance Tester
1. The DC resistance tester uses a high-speed 16-bit A/D converter, with stable measurement data and good repeatability.
2. Automatic program-controlledcurrent source technology, which can either manually select typical output current or automatically control the output current by the internal microcontroller. The current source has a total of 2000 current gears internally. In automatic mode, the internal microcontroller automatically controls according to the measured resistance, thereby achieving a relatively wide measurement range and the best measurement state.
3. Real-time dynamic display, fast response speed. The tap changer can be directly switched in the measurement state, and the instrument will automatically prompt. The new resistance value will be displayed soon without restarting.
4. Highly intelligent design, clever function settings, can automatically judge faults such as loose test line connection and disconnection.
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