MEWOI MEWOI4000, Руководство пользователя, Страница: 11 / 20

-8-
E5
：
Variation due to contact electrode resistance
E7
：
Variation due to system frequency change
E8
：
Variation due to system voltage change
VI. Function Quick Check
FUCTION rotary
switch
Switch on/off ,Function shift, Switch gear
Up/down arrow
button
Data read/numerical value settings
Backlight button Backlight control
START button Start measuring
MODE button
Maximum, Minimum or Average value
mode, Move cursor
CLR button Clear data/Delete data
MEM button
Data lock/storage/reading
AL button
Alarm function start/alarm critical value
settings
VII. Operation Methods
1
．
Switch On/Off
Rotate FUNCTION rotary switch to fulfill switch on and off. When rotary
switch button displays
“
OFF
” for shut-off. The Tester has no auto shut-off
function, so please shut it off after usage in case of battery consumption
saving.
2
．
Battery Voltage Check
After switch on, if LCD displays low battery voltage icon “ ”
，
which
indicates that battery voltage is low, and please replace the battery in
compliance with instructions. Adequate battery power can ensure the
accuracy of measurement.
3
．
Insert and Connection of Rods
Shown as the following figure, stick the auxiliary earth rods P and C into
the ground deeply. They should be aligned at an interval of 5-10m from the
earthed equipment under test. Connect the green wire to the earthed
equipment under test, the yellow wire to the auxiliary earth rod P and the red
wire to rod C from terminals E, P and C of the instrument in order.