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 on-site use and easy to dampen vibration.
● The instrument comes with a built-in perpetual calendar clock and power-off storage, capable of storing 1000 sets of test data.
● The 320×240 dot matrix 65K true color LCD provides clear display under strong light.
● Comprehensive protection functions protect the instrument from back electromotive force impact, ensuring more reliable performance.
● Fast response speed allows direct switching of the on-load tap changer during measurement, with automatic data refresh.
● Equipped with audible discharge alarm and clear discharge indication to reduce misoperation.
● The instrument is equipped with RS232 and USB interfaces for computer communication and U-disk storage.
● The ZSR series DC resistance tester is equipped with a micro printer to 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
● Operating temperature: -20℃～40℃
● Operating humidity: <80%RH, non-condensing
● Operating voltage: AC220V±10%
● Operating frequency: 50HZ
