VOLTCRAFT LCR 4080 Notice D'emploi page 31

D2 "FREQ" button: setting of the test or measuring frequency.
With this button, you can set the measuring frequency to 120 Hz or 1 kHz.
After the setting, the respective symbol appears in the top right corner of the
display behind the measuring value.
The second function of this button is the number "0".
D3 "PAL SER" button: parallel – or series impedance
When you press the button "PAL SER" you connect the LCR measuring
instrument in parallel "PAR" or in series "SER" to the measured object. Usual-
ly, the "PAR" mode is used for high impedances, and the "SER" mode for low
impedances.
The second function of this button is the enter function (confirm input).
D4 "RANGE" button: manual range selection
When you press this button, you switch off the automatic range selection. The
symbol "AUTO" (top left) will disappear.
Every time you press the "RANGE" button, the measuring range will now be
increased by the power of ten – visible in the decimal point moving to the right
and in the measuring unit changing. To return to the automatic range selec-
tion, please press the "RANGE" button for another 2 seconds. The symbol
"AUTO" will reappear in the display. The second function of this button is the
number "1".
D5 "L/C/R" button: selection of the measuring function
Select the desired measuring function with this button:
L for measuring inductors up to 10000 H with 120 Hz or 2000 H with 1 kHz
C for measuring capacitors up to 10 mF with 120 Hz or 2000 µF with 1 kHz
R for measuring resistors up to 10 MΩ
Every time you press the button, the measuring function will be changed – vis-
ible in the display symbols "L", "C" and "R" at the left side of the display. The
measuring function set last will be maintained even if the instrument is
switched off.
The second function of this button is the number "2".
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