20A DC Resistance Tester Product Introduction:The ZGY series
DC resistance tester is mainly used for measuring the resistance of large and medium-sized transformers, engines, motors, etc. The instrument is equipped with multiple current gears to meet various measurement needs.
Technical Features
● The ZSR series DC resistance tester adopts a vertical chassis design, suitable for field use and easy to dampen vibration.
● The instrument comes with a built-in calendar clock and power-off storage, capable of storing 1000 sets of test data.
● 320×240 dot matrix 65K true color LCD, clear display under strong light.
● Comprehensive protection functions, can protect against the impact of back electromotive force on the instrument, with more reliable performance.
● Fast response speed, can directly switch the on-load tap changer in the measurement state, and the instrument automatically refreshes data.
● Has audible discharge alarm, clear discharge indication, reducing misoperation.
● The instrument is equipped with RS232 and USB interfaces, can communicate with computers and store data via U disk.
● The ZSR series DC resistance tester is equipped with a micro printer, which can print test results.
Instrument Parameters:● Output current: ZGY100A: 100A, 50A, 20A, 10A, 5A
ZGYR60 A: 60A, 40A, 20A, 10A, 5A, <5mA
ZGY50 A: 50A, 20A, 10A, 5A, 2.5A, <5mA
ZGY40 A: 40A, 20A, 10A, 5A, 2.5A, <5mA
ZGY20 A: 20A, 10A, 5A, 2.5A, 1 A, <5mA
● Test range: 100A: 50μΩ～4Ω 60A: 40μΩ～20KΩ
50A: 40μΩ～20KΩ 40A: 50μΩ～20KΩ
20A: 100μΩ～20KΩ
● Resolution: minimum up to 0.1μΩ
● Test accuracy: 0.2%
● Dimensions: 400×225×350mm)
Environmental Conditions
● Working temperature: -20℃～40℃
● Working humidity: <80%RH, no condensation
● Working voltage: AC220V±10%
● Working frequency: 50HZ
