Sper scientific 420001, Руководство пользователя

Страница: 8 / 14

8
if in the 2nd time. pressing for 2 seconds, it will enter directly into the
“
LIGHT
”
status, and the LCD backlight light up. After 15 seconds, the
backlight is shut off automatically, the same as pressing for 2
seconds within 15s.
b)
Display Indicators
The Primary Display
：
Indicate the current function testing values
The Secondary Display
：
It shows the output DCV while you test the
insulation resistance, and the battery voltage while the ACV
The Analog Bar
：
indicate the current function testing value in
synchronous with the primary display.
:While testing the insulation resistance, the symbol
“ “ flashes frequently if the voltage is over 30V.
•
))) : While testing the insulation resistance, the symbol ”
•
)))
“ flashes frequently and the buzzer warns continually if the
outside voltage is over 30V. the symbol “
•
))) “ is indicated
while LO
Ω
≤
35
Ω and the
BZ warns continuously.
LOCK
： ：
Push down the “ LOCK ” button while you test the insulation
resistance and the symbol “ ” is indicated.
LOBAT
：
The display shows “ LOBAT ” when the voltage
drops below 7.5V
MAX/MIN:
Stand for the maximum or the minimum.
ZERO :
Digital zero adjusting
。
HOLD :
The digital holding function for the primary display.
AC
， ，
DC
， ，
:
The indicator for the voltage property.
V
， ，
MΩ
， ，
Ω The measured dimension units
。