Chapter II
5000-count portable digital multimeter, with current input
27
6.2.6. Capacitance
"
Note
Discharge all capacitors before taking measurements.
Selector switch
position
Ranges
Accuracy
Measurement
current
Max measurement
time
Protection
(∗)
Resolution
50 nF
100 nA
< 1 s
10 pF
500 nF
1 µA
< 1 s
100 pF
5 µF
10 µA
< 1 s
1 nF
50 µF
1 % R + 2 D
100 µA
< 1 s
600 V
RMS
10 nF
500 µF
1 mA
< 2 s
100 nF
5000 µF
1 mA
≈
3 s/mF
1 µF
50 mF
2 % R + 2 D
1 mA
≈
3 s/mF
10 µF
(∗)
Overload protection can be reset automatically.
Number of points :
5 000
Range selection :
automatic or manual
Maximum open circuit voltage :
7 V
For measurements in 50 nF range, the use of shielded and very short connection is highly
recommended.
6.2.7. Diode threshold voltage measurement
Measurable voltages :
0 to 1.999 V
Measurement current :
1 mA
+/-
20 %
Resolution :
1 mV
Protection :
600 V
RMS
, can be reset automatically
6.2.8. Frequencies
Selector switch
position
Ranges
Accuracy
Input
impedance
Protection
Resolution
0.62 to 5 Hz
0.0001 Hz
5 to 50 Hz
0.001 Hz
Hz
50 to 500 Hz
0.03 % R + 1 D
10 M
Ω
± 1100
V
PEAK
0.01 Hz
500 Hz to 5 kHz
(V
AC+DC
)
775 Vrms
0.1 Hz
5 to 50 kHz
1 Hz
50 to 500 kHz
0.05 % R + 1 D
10 Hz
Number of points :
50 000
Range
selection
:
The measurement is realised by the
capacitive coupling. The frequency meter is
automatically positioned on 5 V range.
Voltage range manual selection possible, if necessary.
Sensitivity
Range
5 V to 500 V
750 V
0.62 Hz to 5 kHz (*)
2 % of range
100 V
5 kHz to 50 kHz
5 % of range
250 V
50 kHz to 500 kHz
10 % of range
-
(*) square signals
"
In this switch position, only the voltage frequency can be measured.
6.2.9. Safety
IEC 61010-1 + A1 + A2, 1995
Insulation : class 2
Pollution degree : 2
Indoor use, altitude < 2000 m
Installation category of input :
CAT
III,
600 V max. to earth
