■ Features

▲ The instrument has a large output current (the maximum output is 40A), and the charging voltage is high (the output can be 50V).

▲ Wide measuring range (0Ω-40KΩ), capable of measuring all inductive DC resistances such as transformers and transformers.

▲ This machine is equipped with automatic magnetic assist function. For the test of five-column low voltage corner connection YND11 large-capacity transformer winding, the high and low voltage series excitation method is used for testing. Quick and accurate measurement. It can meet the time requirements of transformer temperature rise test, dual-channel and phase selection measurement, three temperature rise timing value modes, real-time sampling, and printout, making temperature rise test a simple and convenient thing.

▲ It has a complete protection circuit, audible discharge alarm, clear instructions, strong reliability and reduce misoperation.

▲ Large color screen, touch operation, simple and convenient, display data is clear and easy to read.

▲ The instrument has functions such as perpetual calendar, 100 groups of conventional data storage, 4 temperature rise test data storage, and automatic temperature conversion in the normal mode. No data is lost when shutting down. And there is a "U disk" interface to facilitate the export of temperature rise data for reference and generation of temperature rise curves.

▲ This instrument is equipped with RS485 communication interface, with the upper computer control software, to achieve remote control measurement.

▲ This instrument is equipped with an automatic demagnetization function to reduce the remanence of the transformer and avoid difficulty in closing.

▲ This machine has a protection alarm function for input misconnection of AC380V power supply to reduce the damage to the instrument caused by misoperation.

▲ This machine has the characteristics of wide applicable temperature, high precision, shockproof, anti-interference, high stability, and convenient carrying.

■ Technical parameters

▲ Output voltage: 50V

▲ Output current: 40A, 20A, 10A, 3A, 1A, 0.3A, 25 mA

▲ Test range: 0Ω—1Ω (40A) 0.001Ω—2Ω (20A) 0.002Ω—4Ω (10A) 0.006Ω—13Ω (3A) 0.02Ω—40Ω (1A) 0.08Ω—130Ω (0.3A) 30 Ω—40000Ω (25mA)

▲ Accuracy: 0.2%±0.0002mΩ

▲ Minimum resolution: 0.01 μΩ

▲ Input power: AC220V±10%; 50HZ±1 HZ

▲ Working temperature: -20℃～40℃

▲ Relative humidity: ≤90%RH, no condensation

▲ Dimensions: 445mm×370mm×210mm

▲ Net weight: 15kg