CEM DT-9935, Instruction Manual

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CAL
REL
%
HOLD
•
•
•
Hold mode
The data hold function allows the user to freeze the display when
pressed,holding the measured value until data hold is turned off.
To use data hold, press the button once. The "HOLD"
indicator will display on the screen when data hold is active.
To disable the data hold,press again.The "HOLD" indicator
will disappear on the screen,and meter will remain in normal
operation mode.
Press the button reserve the current DUT readings (DCUR)
on primary display as a reference value (DREF) and the "
Turn On Data Hold
Turn Off Data Hold
Relative mode
Δ"
indicator will be active . The secondary display will show the
percentage of relative value REL%. The REL% = (DCUR – DREF)
/ DREF * 100%. Press the
button again to show the reference
value DREF on primary display and the "Δ" segment will be blinking.
The percentage range is -99.9%~99.9%. When the relative value
is larger than double of reference value (DREF), the "OL%"
indication will be shown on the secondary display. Press and hold
downthe
button for 2 seconds to exit the relative mode.
In order to improve the accuracy of high/low impedance, it is
recommended to do OPEN/SHORT calibration mode before
measurement. Press and hold down the
button for 2 seconds
to enter calibration mode. The calibration procedure: OPEN
ready
OPEN calibration(30s) SHORT ready
SHORT calibration(30s) . During open or short calibration
processing, the 30-second countdownwill be shown on LCD
panels. If the calibration
Calibration mode
1 2
→ → → → →
→
procedure is finished, the PASS or FAIL
symbol will shown on the primary display. If PASS symbol for
both OPEN and SHORT modes, the calibration data will be saved
HOLD
REL
%
REL
%
CAL
CAL
CAL
12
Dual Display LCR Meter Instruction Manual