- LED, which requires a larger working current, is the
main source of back light. Although the meter is
equipped with a timer set at 60 seconds (i.e. the back
light will be off automatically after 60 seconds),
frequent use of the back light will shorten the life of
the batteries. Therefore, do not use the back light
unless necessary.
-When the battery voltage is<3.7V, the symbol “”
(battery low)will appear on the LCD. When the back
light is on, even if the batter is>3.7V, the “” may
appear because of its large working current which
will cause the voltage to drop. (The accuracy
of the measurement cannot be assured when the
“ “ symbol appears.) In this case, you need not
replace the batteries yet. Normally, the batteries
can last until the “” appears when the back light
is not being used.
17 18
1) During measuring maximum or minimum value, the
meter will be set to manual mode automatically.
2) During working at frequency or duty measuring
function, the meter can't be changed into maximum
or minimum value measuring mode.
Note:
4.5 Switching Functions
4.5.1 AC A range
4.5.1.1 Press the “SEL” button, the meter will get
into inrush current test mode.
4.5.1.2 If press the “SEL” button again, the meter
will get into inrush current test mode again.
4.5.1.3 Press the “SEL” button more than one second
or press the “RAN”button, the meter will get
back to normal test mode.
4.5.2 DC A range
4.5.2.1 Press the “SEL” button, the meter will get
into zero.
4.5.2.2 If press the “SEL” button again, the meter
will get into zero again.
4.5.2.3 Press the “SEL” button more than one
second or press the “RAN” button, the meter
will get back to the normal test mode.
4.5.4 Press the ”SEL” button to switch among
resistance, diode and continuity ranges.
4.5.3 Press the “SEL” button to switch between AC
and DC measurement at the voltage ranges.
4.6 Back Light And Clamp Lighting Bulb
4.6.1 Press the “HOLD/B.L” button for two or more
seconds to switch on the back light if the light
in the environment is too dim for taking reading,
which will last for 60 seconds.
4.6.2 During the back light is working, press the
“HOLD/B.L” button for two or more seconds, it
will be turned off.
4.6.3 At the current range, when the back light is
switched on, the clamp lighting bulb will be turned
on at the same time.
Note:
4.7 Auto Power Off
4.7.1 If there is no any operation within any thirty
minutes after power is on, meter will auto power
off.
4.7.2 After auto power off, if press the “SEL” button,
meter will recover the working condition.
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