The large-screen 320240 LCD Chinese display of the instrument is especially suitable for continuous continuous testing of multi-tap load switches, dynamic prompts during the measurement process, automatic arc suppression current indication and sound and light indication alarms. The test records can be edited and saved and printed. The direct resistance of each node of the transformer with tap changer can be displayed at the same time, and the unbalance rate can be automatically calculated, which can greatly shorten the measurement time and improve the work efficiency. It can be equipped with data management software to directly pass the upper computer operation test. The saved file format is Excel or txt file format.

1. Classified environment group: it belongs to the third group of instruments in the GB6587.1-86 "General Outline of Environmental Tests for Electronic Measuring Instruments" (that can be used in the field environment).

2. Structure and size: portable

    Type: Portable

    Overall dimensions of the host: 410×320×185 mm

    Packing: aluminum alloy case

    Quality: 10Kg

3. Power supply: ◇Power supply: voltage AC220V±10%, frequency 50Hz±10%

    Current output:

    1) 10A model: three channels: 5A+5A, 1A+1A

    Single channel: 10A, 5A, 1A

    2) 20A model: three channels: 10A+10A, 5A+5A, 1A+1A

    Single channel: 20A, 10A, 5A, 1A

4. Operating environment: ◇Ambient temperature: -20℃～50℃

    Relative humidity: ≤80%

    Working method: air-cooled

5. Test index: ◇Temperature: -55℃～+125℃

    Test range: 1mΩ～200Ω

                    20A: 1mΩ～1Ω (20A model)

       ;            10A: 1mΩ～2Ω

               ;      5A: 10mΩ～5Ω

 ;                    1A: 1Ω～200Ω

    Accuracy: 0.2% of reading ± 2 digits

    The highest resolution: 0.1μΩ