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PDR301指針式接地電阻測試儀@PDR-301%
帶機套,0-30V,10/100/1000 ΩThe PDR301 pointer type earthing resistance tester @PDR-301%
Belt machine sets, 0-30V, 10/100/1000.
Analog display type
Display circuit using phase detection, not from the outside noise, may carry on the high accuracy detection.
Each detection does not need to self correction, just press the detectionswitch for rapid detection.
In order to prevent the leakage current to ground to ground resistance value display error, a testing ground voltage (0 30V) transfer to range.
Grounding resistance measurement can be through the automatic switch button control, prevent battery consumption.
With auxiliary grounding electrode resistance is too large to warn LED indicator.
■ Simple operation with push button
■ Phase detection system used for circuit for stable measurement
■ Automatic calibration AC 30V range to avoid indication errors
