Note:
Electric discharges and high-frequency influence may cause incorrect
information to be displayed and block the measuring process. Reset the
meter by switching it OFF and ON again otherwise, check the battery
connections. Disconnect the meter from the measuring circuit before
you open it, and see section “17.Maintenance”
)
Automatic Meter-OFF (MoFF)
DMM has a default auto meter off function. If the meter is idle for more
than 15 minuets ,the meter automatically turns the power off. When
MoFF
happens, the state of the meter is saved. The “
MoFF
”(16) sign on
the LCD panel indicates whether the
MoFF
is enabled or not. In some
cases, user might want to disable this feature ,Power ON the meter by
pressing any of the push functions, except HOLD(8) & multifunction(5)
push buttons. After auto meter-off, pushing any of the push function or
changing the rotary switch mode can turn on the meter again. If the
meter is re-powered by changing the rotary mode, the saved state is
cleared. If the meter is re-powered by push functions, the chip
restores the saved state and enters HOLD mode. The LCD displays the
saved value.
Turning the multimeter OFF
To turn OFF the meter rotate the rotary knob(6) to the “OFF” position
4. Function and range selection
The function selector switch (6) is coupled with the Automatic terminal
Blocking System (ABS) which allows access only to two correct sockets
for each function. Prior to switching to the "mA" or "A" functions or from
the "mA" or "A" functions, remove the test lead from the corresponding
socket. When the test leads are plugged-in, the terminal blocking
systems prevents accidental switching to non permissible functions.
4.1 Switching the measuring ranges
The 660 mVAC and 660 mVDC measuring ranges are not automatically
selected when the meter is switched ON. The above ranges can only be
selected manually with “AUTO/MAN” key.
4.2 Auto / Manual ranging
The multimeter features auto ranging for all measuring ranges with the
0
0
exception of the C, F, continuity , Diode ,% , AAC ,ADC.
Autoranging is automatically selected after switching the multimeter
ON. According to the measured quantity applied, the multimeter
automatically selects the measuring range which gives the best
resolution. You can switch OFF auto-ranging and select the ranges
manually according to the table shown in this section. Manual mode is
6
