The instrument has a large screen with 320240 LCD Chinese display, which is particularly suitable for continuous testing of multi tap on load switches without interruption. It provides dynamic prompts during the measurement process, automatic arc extinguishing current indication, and sound and light indication alarm. The test records can be edited, user information saved, and printed. It can simultaneously display the direct resistance of each node of a transformer with a tap changer and automatically calculate the unbalance rate, which can greatly shorten the measurement time and improve work efficiency. Can be equipped with data management software and tested directly through the upper computer operation. The saved file format is Excel or txt file format.

1. Classification environmental group: belongs to Group III instruments in GB6587.1-86 "General Principles for Environmental Testing of Electronic Measuring Instruments" (which can be used in outdoor environments);

2. Structural form and size

Type: Portable;

Host dimensions: 410 × 320 × 180 mm;

Packaging: Aluminum alloy chassis;

Quality: 10kg;

3. Use power supply

Working power supply: voltage AC220V ± 10%, frequency 50Hz ± 10%;

Current output: 1A, 5A, 10A;

4. Operating environment

Environmental temperature: -20 ℃ to 50 ℃;

Relative humidity: ≤ 80%;

Working mode: air-cooled;

5. Test indicators

Temperature: -55 ℃ to+125 ℃;

Test range: 1m Ω~200 Ω;

Maximum resolution: 0.1 μ Ω;