Clamp Ground Resistance Tester YH301 
 Clamp Ground Resistance Tester YH301 
 In modern industrial electrical equipment has been very popular, a good ground has become an important anti-jamming, the effective lightning protection system. Therefore, safe, fast ground measurements has become an urgent need. Earth resistance clamp meter for the traditional ground resistance measurement is a major breakthrough in the measurement without the use of auxiliary ground rods, and ground equipment under test without interruption, just stay grounded line or bar clamp, can be safe, fast measure resistance to ground. 
 In addition, the product can be current measurement, the sensitivity of the clamp to measure the leakage current to 1mA, and the neutral current up to 20A RMS. When this feature is to be measured in the ground loop will affect the power quality with the larger noise and harmonic, it is particularly important. 
 In addition to the products for industrial electrical equipment, but also power distribution, telecommunications, system configuration, the building ground and other fields have wide application. 
 Clamp Ground Resistance Tester YH301 features: 
 ? 0.01Ω accurate measurement of low resistance 
 ? 0.001Ω resolution 
 ? Can store 99 sets of resistance measurements 
 ? Can 1Ω ∽ 100Ω set the alarm value within 
 ? Measurable leakage current and the neutral line current 
 ? Large diameter precision measuring 45 × 32mm sensor, oval-shaped jaws, measurable flat iron ground. 
 ? Digital measurement, automatic transmission, easy to operate 
 ? Clamp head has a double protective insulation, enhanced anti-jamming 
 ? Non-contact measurement, the measurement Security 
 ? Single measurement time of 1 second, reflecting the rapid measurement 
 ? Limit alarm with battery 
 ? Display: LCD 3 3 / 4 digits 
 ? Clamp head diameter: 32mm X 45mm; with auxiliary grounding 
 ? Current overload display: more than 20A RMS time, "OL" displayed 
 Ground Resistance Tester Clamp Specifications YH301 

 Accuracy of technical indicators resolution stalls 
 0.01Ω ~ 0.999Ω ± (1.5% +0.01 Ω) 0.001Ω 
 1Ω ~ 9.99Ω ± (1.5% +0.1 Ω) 0.01Ω 
 10Ω ~ 99.9Ω ± (2.0% +0.3 Ω) 0.1Ω 
 Resistance measurement 100Ω ~ 199.9Ω ± (3.0% +1 Ω) 1Ω 
 200Ω ~ 400Ω ± (6.0% +5 Ω) 5Ω 
 400Ω ~ 600Ω ± 10.0% +10) 10Ω 
 1 600Ω ~ 1200Ω ± (20.0% +20 Ω) 20Ω 
 100mA ± (2.5% +1 mA) 0.3 mA 
 300mA ± (2.5% +2 mA) 0.1mA 
 Current measurement 1A ± (2.5% +0.003 A) 0.001A 
 3A ± (2.5% +0.01 A) 0.003A 
 10A ± (2.5% +0.03 A) 0.01A 
 20A ± (2.5% +0.05 A) 0.03A 
 Test conditions of soil temperature 23 ℃ 3 ℃ 
 Soil moisture 10% 50% RH 
 Battery power> 7V 
 External magnetic field <40A / m 
 External electric field <1V / m 
 Current test frequency 45 Hz ~ 65Hz