UT273+ Clamp Earth Resistance Tester
P/N:110401111227X 2022.07.05 REV.1
This is the earthing resistance of grounding electrode RA. To
understanding the formulas above,
we can regard these three grounding electrodes as a triangle, then the measured resistance is:
Measured resistance = (Resistance of adjacent side 1 + Resistance of adacent side 2 – Resistance of
opposite side)+ 2
The resistances of the two reference grounding electrodes are: RB=Rl-RA,
Clamp meter Battery Calibration loop USB cable User manual Tool box
1 pc 4 pcs (1.SV AA alkaline battery) 1 pc 1 pc (data transmission) 1 pc 1 pc
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