GB
GMC-I Messtechnik GmbH
17
12
Capacitance Measurement
Attention!
Be absolutely certain that the device under test is
voltage-free. Extraneous voltages distort the
measurement results!
➭
Set the selector switch to “F”.
➭
Connect the (discharged!) device under test to jacks “
”
and “F” with measurement cables. Polarized capacitors
must be connected to the “
” jack at the “–” pole.
Note!
Resistors and semiconductor paths in parallel to
the capacitor distort the measurement results!
To measure small capacities please use short
measurement cables!
Only digital display is available in this mode.
Zero Adjustment (relative mode)
For the measurement of small capacitive values in the 4 nF
and 40 nF ranges, the inherent capacity of the measuring
instrument and the cables can be eliminated with zero bal-
ancing:
➭
Connect the measurement cables to the measuring
instrument without a DUT.
➭
Press the multifunction key briefly.
The instrument acknowledges zero balancing with an
acoustic signal, and a value close to “00.00” and REL
are displayed at the LCD. The capacitance measured at
the moment the key is activated serves as a reference
value. This value is then automatically subtracted from all
measured values.
C
X
+
–
mA
600V
A
V
F
600 V CAT II / 300 V CAT III
400mA fused
10A fused
