EGAmaster EGATRONIK 51250 Manuale di istruzioni per l'uso - Pagina 17

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5.1 Battery Voltage check:

Select function from OFF to EARTH VOLTAGE or EARTH RESISTANCE, LCD Display will show

battery indicator : "

the Tester cannot work properly.

Battery sign

5.2 Test leads connection

Make sure all the test leads are firmly connected to the Tester input terminals; test leads do not

firmly connect will affect the accuracy of measuring value.

When the Tester carry out earth resistance testing, the distance between E and

Warning!

Do not touch the external part of test leads and auxiliary earth stake in order

6.1 Precision Measurement (using standard test leads for measurement):

a. place 2 ground stakes in earth/dirt. Minimum distance between earth electrode (E), probe (P)

and auxiliary earth (C) should be 5-10 meter apart, as below connection figure 2:

(Attention: ensure the ground stakes in the moisture soil. If the soil is too dry, it need to fill-in

sufficient water. Rock or sand also needs moisture before testing.

If the testing site is inside the urban city with concrete cover which is hard to put in the

ground stakes, it can use 25cmx25 cm two steel plates (or using the existing ground stakes) place

horizontally in concrete surface, and cover by moisture towel with sufficient water, replace

measurement earth, it still can make measurement in general situation.)

5. PREPARATION BEFORE MEASUREMENT

" which show lowest battery status, and need to change battery, otherwise

6. MEASURE METHOD

C have the maximum voltage around 50V~volt.

Battery Voltage

7.8V~8.2V

7.4V~7.8V

7.0V~7.4V

to avoid shock hazard.

≥8.2V

≤7V