MA:MFA150190 KA:KFA150020 ExibI ：320150858 ExiaⅡ:CMExC17.4383
专利：ZL 2015 2 0977177.7
1. Applicable for grounding resistance and circuit resistance measure in mine, industrial park, electricity, telecom, meteorological, oilfield, architecture, industrial motor equipment field.
2. No need to disconnect earthing wire when measuring, no need auxiliary electrode.
3. Applicable for the combustible and explosible gas place.
4. Measured value is the comprehensive value of grounding body resistance and earthing wire resistance.