QK400A Switch Contact Resistance Tester
Darui Electric recommends:
Main Technical Specifications
1. Test current: 100A / 200A / 400A
2. Test range: 100A/200A range 0-9999.9μΩ; 400A range 0~1999.9μΩ
3. Accuracy: 1% ±2 digits
4. Display: 5-digit loop resistance display with latch; digital test current display
5. Working mode: intermittent, continuous
6. Power supply: 220V ±10%, 50 Hz
Precautions
1. Do not open the case to ensure personal safety.
2. This instrument contains no user-serviceable parts. Contact the manufacturer if abnormalities occur.
3. Working mode (air-cooled): at rated output, operate 60 seconds, rest 120 seconds, measure three times.
4. Load capacity in constant current mode: at 600A, load resistance ≤2mΩ (2000μΩ).
5. Protection functions: output overvoltage protection (non-auto-recovery), overload protection, overheat protection (auto-recovery).
Note: The above information and technical parameters are provided by Yangzhou Darui Electric Co., Ltd.
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