GW Instek LCR-800 Series - Manual (Page 12)

GETTING STARTED
23
+ Power
Supply
200mA MAX MAX 30V
CAT
EXTERNAL BIAS
+
LCD
Don’t connect
LCR-800 User Manual
24
Zeroing
Zeroing calibration
Background Open and short circuit calibration (zeroing) should
be performed on a daily basis to correct for cable
and fixture errors before taking measurements.
When test fixtures or test cables are changed, the
zeroing process should be performed again. All
data performed during the calibration is stored in
the internal memory of the LCR-800.
The Open circuit calibration determines the stray
admittance and compensates high impedance
measurements. The short calibration determines
the residual impedance and is used when
determining low impedance measurements.
Open circuit The Open circuit calibration measures the stray
admittance of the test fixture. This is used for high
impedance measurements.
Procedure 1. Insert the test fixture or cable.
Ensure the cables are not
shorted and are open.
2. Press the MENU key, then OFFSET, followed
by CAP OFFSET.
3. Wait for the calibration to finish. If the OPEN
TEST was successful, the screen will display the
following message: