16 GMC-I
Messtechnik
GmbH
4.6
Estimated Capacitance Measurement
Capacitance values can be determined in the resistance ranges
by estimated measurement. When doing so, proceed exactly as
if measuring resistance in accordance with chapter 4.5. Resis-
tance R
x
is to be replaced by the capacitance to be measured,
after prior discharge. When the capacitor is connected, the
pointer of the instrument swings to a maximum value and then
returns to its initial position (mechanical zero point). The point of
return of the pointer deflection serves as a measure for capaci-
tance. It is to be determined on scale 0 ... 5 V, A
. The mea-
sured value can be determined using the following comparative
scale and the factor for capacitance measurement correspond-
ing to the measuring range selected:
Before measurement is repeated, the capacitor must be
recharged!
Example:
Selected measuring range:
Ω
x 100
Return point of pointer:
3.3 on the upper scale 0 ... 5 V, A
Capacitance determined
via comparative scale:
50 μF
Multiplied by the factor for
capacitance measurement:
50 μF x 10 = 500 μF
Measuring Range
Factor for Capacitance
Measurement
Measuring Limits
Ω
x 1000
Ω
x 100
Ω
x 10
Ω
x
1
μF x
1
μF
x
10
μF x
100
μF x
1000
2 ...
200 μF
20 ...
2000 μF
200 ...
20000 μF
2 000 ...
200000 μF
