• In the LPF measuring mode, the meter will turn to manual
mode. Press the key RANGE to select a range. When the
low-pass filter is enabled, the automatic range is unavailable.
• Do not input a voltage above 1 000V. Higher voltage may
be measured but it poses the risk of damaging the meter.
• After completing all the measuring operations, disconnect
the connection between the test leads and the circuit under
test.
14.dBV
1) Insert the red test lead into the V terminal and the black
test lead into the COM terminal.
2) Set the rotary switch to v. Connect the test leads to the
power or load to be tested in parallel as shown in Figure 5.
3) Press the function key MENU(Menu) to enter one menu
item. Press the cursor keys 0iJ;0 to select the menu item
dBV, then press the function key (Menu) dBV to enter dBV
measurement.
4) dBV is primarily shown and AC voltage value is secondly
shown on the display. AC voltage of the measured signal
is displayed on the simulation bar.
15.dBm
1) Insert the red test lead into the V terminal and the black
test lead into the COM terminal.2) Set the rotary switch to
v . Connect the test leads to the power or load to be tested
in parallel as shown in Figure 5.3) Press the function key
MENU (Menu) to enter one of the menu items, press the
cursor keys 0iJ;0 to select the menu item dBm. A reference
impedance (resistance) must be used for the measurement
of dBm to calculate dB value on the basis of 1 mW. Press the
function key RES (Menu) to select a reference impedance
value. Press 0 or 0 to scroll between ten defined reference
values: 4,8, 16,25,32,50, 75,600, 1000 and 1200. Press the
function key EDIT (Menu) and the cursor keys 0�0 to select
any one of the reference impedance values between 40~
12000. Press the function key OK (Menu) to set reference
values. Press the function key dBm (Menu) to enter dBm
measurement.
4) dBm is primarily shown and AC voltage value is secondly
shown on the display. AC voltage of the measured signal
is displayed on the simulation bar.
16. Maximum and Minimum Value
Press
MAX MIN
to activate the measurement of maximum
and minimum values. Real-time measurements are primarily
displayed. Maximum, average and minimum values, elapsed
time, start date and time corresponding to the three values
are secondly displayed. Press the function key RESTART
(Menu) to re-activate the measurement of maximum and
minimum values. Press the function key EXIT (Menu) to exit
the measurement of maximum and minimum values.
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Содержание MP730657
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