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capacitance and the secondary parameter (ESR or D) are
measured at the same selected frequency.
Discharge Capacitor!
7.1.2 Quick Controls
•
Push the joystick up and hold for 1 beep to change the primary
impedance type (more info below, Section 7.2.1)
•
Push the joystick to the right and
hold for 2 beeps to make
Open/Short calibration and
eliminate the offsets.
•
Push the joystick left and hold for 1 beep to change the test
frequency. The frequency changes cyclically Auto-100Hz-
120Hz-1kHz-10kHz-100kHz. If the frequency is selected from
the menu in the range 20-75kHz, the frequency changes
cyclically 20kHz-30kHz-40kHz-50kHz-60kHz-75kHz-100kHz
•
Push the joystick down and hold for 1 beep to change the test
signal level cyclically Auto-1.0-0.5-0.1 Vrms
7.1.3 Relative (Tolerance) Measurements
In order to initiate Relative (Tolerance) measurement mode,
connect the measured reference component to the probes, push
the joystick up and hold for 2 beeps. The reference value will be
recorded, and further measurements will show the measured
value as well as the percentage deviation from the reference
value. To cancel Relative measurements, push the joystick down
for two beeps.
Before the first use, the device must be calibrated with Open and
Short probes for both RDC+LED (for a correct diode parameter
extraction) and R-L-C-D mode for each test frequency. When the
device is set to Auto-frequency the device is automatically
calibrated at 100Hz, 120 Hz, 1 kHz, 10kHz, and 100kHz.
If the probes are shorted, parasitic resistance is obtained. If the
probes are open, parasitic capacitance is obtained. Please use
LCR-Reader Capacitance Calibration Board to set a proper
distance between the test leads for Open circuit calibration
(according to the component size) because the parasitic
capacitance depends on the distance between the test leads.
Short circuit calibration is very crucial for small resistance and
inductance and large capacitance. Open circuit calibration is
crucial for small capacitance and large resistance.
To eliminate the offset, push the joystick to the right, hold for 2
beeps and release. When measuring small capacitances less than
100 pF, use LCR-Reader Offset Calibration Board included in the
package for the open calibration. Insert the test leads at the
Содержание LCR-Reader MPA
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