Chapter II
Portable digital multimeter
33
Number of counts :
50 000 (or 5 000, refer to §. 3.4.)
Range selection :
automatic or manual for the 500 µA, 5 mA, 50 mA, 500 mA ranges
Additional error according to crest factor :
0.2 % for a crest factor of 2 to 3
0.5 % for a crest factor of 3 to 6
(Specification given full scale for a squarewave signal pulse 200 µs wide)
Additional error in I
AC+DC
with a direct current at input : 1 %
5.5.
Resistance / Continuity
Ranges
Accuracy
Measurement
current
Protection
∗
Resolution
500
Ω
/
0.07% R + 5 D
1 mA
10 m
Ω
5 k
Ω
100 µA
100 m
Ω
50 k
Ω
10 µA
1
Ω
500 k
Ω
0.07% R + 2 D
1 µA
10
Ω
5 M
Ω∗∗
0.3% R + 2 D
100 nA
100
Ω
50 M
Ω∗∗
1% R + 2 D
50 nA
600 V
RMS
1 k
Ω
∗
Overload protection can be reset automatically.
∗∗
It is highly recommended to use very short and shielded test leads for measurements in this
range (> 1 M
Ω
).
Number of counts :
50 000 (or 5 000, refer to §. 3.4.)
Range selection :
automatic or manual (fixed in continuity mode)
Maximum open circuit voltage :
7 V
Detection threshold in continuity mode :
10
Ω
to 20
Ω
Response time in continuity mode :
1 ms
5.6. Capacitance
)
Note
Discharge all condensers before taking measurements.
Ranges
Accuracy
Measurement
current
Max.
measurement
time
Protection
∗
Resolution
50 nF
∗∗
100 nA
10 pF
500 nF
1 µA
100 pF
5 µF
10 µA
1 nF
50 µF
100 µA
0.5 s
10 nF
500 µF
1.5 s
100 nF
5000 µF
1 µF
50 mF
1% R + 2 D
1 mA
3 s/mF
600 V
RMS
10 µF
∗
Overload protection can be reset automatically.
∗∗
It is highly recommended to use very short and shielded test leads for measurements in this
range.
Number of counts :
5 000
Range selection :
automatic or manual
Maximum open circuit voltage :
7 V
