Users’ Guide for Earth Ground Resistance Tester
Operation Instructions
Attention: ＞ LIMIT4000Ω displayed on LCD warns that the auxiliary earth resistance of the auxiliary earth
rods is so high that the current can not flow across the meter. Check if the test leads become loose and the amount
of the earth resistance of the auxiliary earth rods. In a measurement, test leads twisted together or becoming
contacted each other will cause error in the measurement; therefore, make sure that a measurement is done when
the test leads are separate. Besides, too much auxiliary earth resistance will bring unacceptable error to the
measurement, therefore, respectively bury deep auxiliary earth rods such as P and C in too wet sites and ensure
good connection in each joint.
4.4 Data Storage
The meter is capable of storing up to 100 groups of measurement data, which will not be lost even in case of power
cuts
（1）When the meter is standing by, press MEMO to call the display for data storage, with “MEMO” glittering at the
lower right corner of LCD; should the existing memory has been used for storage of other data, “USED” would be
shown on LCD when pressing MEMO to exit data storage.
（2）Press “ENTER” briefly to switch A bit of a memory position and 10-bit and the memory position can be scanned by
pressing “
”or“ ”.
（3）Press “ENTER” for 2 seconds to store a group of data in a memory and in case that there are data stored before in
the memory, the current data will cover the previous data.
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