EN-4
7.
TEST PROCEDURE
7.1.
POWER BUTTON
˙
P
ress the “
” button to turn ON the power. The display
comes alive.
˙
Press the “
” button once again to turn OFF the power
and put the device go into sleep mode. The display
changes from light to dark.
7.2.
ZERO“ BUTTON“
˙
Press the “
“button for the zero adjustment if any
digits are appearing.
˙
If performing the zero adjustment after powering on,
several digits may not disappear. In this case, perform the
zero adjustment again.
7.3. BACKLIGHT DISPLAY AND READING IN THE
DARK.
˙
Press “
” key backlight light on. Again Press“
”