© Copyright Siborg Systems Inc.
14
In this mode, there are two sub-
modes, one for capacitance values
from 0.5
μF
to 40 mF and the other
from 40 mF to 1 F. In the first mode
the capacitance is measured at a frequency of 120 Hz, and the
capacitor's ESR is measured at the frequency of 100 kHz. The
other mode is for capacitance values from 40 mF to 1 F and the
capacitance is measured using DC while ESR is still measured at
100 kHz. To toggle between the modes, push the joystick left for
1 beep.
Discharge Capacitor!
Before the first application in this sub-mode it is necessary to
additionally calibrate the device with both open and shorted
probes.
For the rejection of electrolytic capacitors based on ESR, two
tables are stored in the memory of the device, one for standard
aluminum capacitors and the other for
Low ESR
capacitors
(Supplement C and D, Section 14.2 and 14.3). Two additional
numbers are displayed at the top-right corner of the screen in
this case: the first number is the quality of the capacitor. For
standard aluminum capacitors, positive values indicate rejection,
and for
Low ESR
rejected values are above -10. The second
number is the selected operating voltage of the capacitor in
menu under C voltage: 6.3, 10, 16, 20, 30, 50-63, 100, and 160+
Volts.
•
Push Joystick right for 2 beeps to make calibration eliminating
the offset. Only short calibration is required.
•
Push Joystick to the left to toggle between lower than 40 mF
and higher than 40 mF capacitance measurements. To speed
up the settling of the readings, short the capacitor leads for 2-
3 seconds before the measurements.
•
Push Joystick down for 1 beep to
toggle the test signal level
between 1.0 Vrms and 0.1 Vrms
7.2.13 Super Large Cap > 40 mF Measurement
•
Push Joystick right for 2 beeps to make calibration eliminating
the offset. Only short
calibration is required.
•
Push Joystick to the left to
Summary of Contents for LCR-Reader MPA
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