GDZRC-40U (GDZRC-50U) DC Winding Resistance Tester
● Controlled by high-speed single chip microcomputer, highly automatic and easy to operate.
● Adopts the new power supply technology with multiple current steps and wide measurement range, which is suitable for DC resistance measurement of large and medium-sized transformers.
● Perfect protection functions, able to protect the instrument from the impact of counter EMF, with more reliable performance.
● Sound discharge alarm, clear discharge indication, less faulty operation.
● Fast response speed, the on-load tap-changer can be directly converted in the measurement state, and the instrument automatically refreshes the data.
● Intelligent power management technology. The instrument always works with minimum power, which saves energy and reduces heat effectively.
● 65K true color LCD of minimum 320X240 super small pixels.
● Equipped with a calendar clock and power failure data-store function, which can store 1000 sets of test data and can be reviewed at any time.
● Equipped with RS232 (reserved interface) and USB interface (for USB storage).
Specification
| Output current | <5mA, 2.5A, 5A, 10A, 20A, 40A | |
| Min. resolution | 0.1μΩ | |
| Measurement range | (GDZRC-50U: 40μΩ~400mΩ) 50μΩ~500mΩ 100μΩ~1Ω 500μΩ~2Ω 1mΩ~4Ω 2mΩ~8Ω 10Ω~20KΩ | (GDZRC-50U: 50A) 40A 20A 10A 5A 2.5A <5mA |
| Accuracy | ±(0.2%+2digits) | |
| Operation temperature | 0~40℃ | |
| Humidity | <90%RH (no condensing) | |
| Size | 325mm×240mm×275mm (L×W×H) / GDZRC-50U: 400mm×225mm×350mm (L×W×H) | |
| Weight | 15kg (without test wire) / GDZRC-50U: 17kg (without test wire) test wire box: 3kg | |
