Description
Measure low contact resistance in circuit breakers, bus joints and other conductive connections.
The Auto-Ohm 200 S3 applies a controlled DC test current and displays resistance readings for maintenance comparisons. Adjustable current ramping supports repeatable tests, while internal storage and USB export help retain results from a sequence of measurements.
Key specifications
- Test current: 1–200 A DC, selectable in 1 A steps
- Resistance range: 1 µΩ–5 Ω, with current-dependent limits
- Resolution: Down to 0.1 µΩ above 5 A
- Internal storage: 128 records of up to 64 readings
