GZD2040 Transformer DC Resistance Tester
The GZD2040 Transformer DC Resistance Tester is designed for measuring the DC resistance of inductive test objects such as transformers of all capacities, instrument transformers and motor windings. It can also measure the resistance of resistive test pieces including conductors and switch contacts. The instrument features fast testing speed, stable readings, compact size, light weight and high portability.
- Measure DC resistance of transformers of all capacities, instrument transformers and motor windings.
- Short stabilization time for the constant current source.
- Wide resistance measurement range.
- Equipped with comprehensive back EMF protection and strong arc resistance.
- Audible discharge alert with clear discharge indication to avoid mis-
- Resistance temperature conversion function for easy comparison with historical data.
- Transformer demagnetization function to effectively reduce residual magnetism of transformers.
- Built-in storage for 1000 sets of test data; data can be exported to a PC via USB flash drive.
- High-brightness LCD screen for clear display even under strong sunlight.
- Built-in high-speed thermal printer for test data output.
- Supports wireless connection and testing via Bluetooth 4.0 and above, enabling data retrieval from the device.
- Protection against incorrect connection to 380 V AC power supply.
1.Output Current: 40 A, 30 A, 20 A, 10 A, 5 A, 1 A, 100 mA, 10 mA (Auto range included)
2.Measuring Ranges:Auto: 250 μΩ ~ 200 Ω
40 A: 250 μΩ ~ 0.2 Ω
30 A: 350 μΩ ~ 0.6 Ω
20 A: 500 μΩ ~ 0.8 Ω
10 A: 1 mΩ ~ 1.8 Ω;5 A: 2 mΩ ~ 4 Ω
1A: 10 mΩ ~ 20 Ω
100 mA: 100 mΩ ~ 200 Ω
10 mA: 1 Ω ~ 20000 Ω
3.Accuracy: ±(0.2%R + 2 digits)
4.Minimum Resolution: 0.1 μΩ
5.Operating Power Supply: 85 ~ 264 V AC, 47 ~ 63 Hz
6.Operating Environment: Temperature: -10 ℃ ~ 50 ℃; Humidity:＜90% RH
7.Dimensions: 428 × 361 × 192 mm
8.Weight: 11 kg