Dc Current; Ac Currents (Ac+Dc); Resistance / Continuity Test - Metrix MX 26 Notice De Fonctionnement

6.2.3. DC current

Selector switch position Ranges
500 mA 500 mA
DC
(∗∗)
10 A
10 A
DC
(∗) Refer to fuse specifications section 3.5.3.
(∗∗) Acceptance 20 A overload during 30 s. max, observing a 5 min break at least between 2
measurements.
Beyond 7 A, the measurement is limited to one minute.
Number of points : 5 000
« OL » on the display (range 500 mADC only) and intermittent signal sounds in case of range overpassing.
For measurements performed on alternative signals, the selected range must tally with the max. value of
the signal peak.
Additional error in Pk +/- mode for a pulse width of ≥ 1 ms : 1 % R ± 50 D

6.2.4. AC currents (AC+DC)

Selector switch
Ranges
position
40 Hz to 10 kHz :
500 mAAC+DC 500 mAAC+DC
40 Hz to 2 kHz : 2.5
10 AAC+DC (∗∗)
10 AAC+DC
(∗) Refer to fuse specifications section 3.5.3.
(∗∗) Acceptance 20 A overload during 30 s. max, observing a 5 min break at least between 2
measurements.
At 10 A, the measurement is limited to a period of 30 minutes.
500 mAAC+DC range:
Specifications applicable from 10 % to 100 % of the range for a sinusoidal signal in band 40 Hz to 30 kHz.
10 AAC+DC range:
Specifications applicable from 10 % to 100 % of the range for a sinusoidal signal in band 40 Hz to 2 kHz
and 20 % to 100 % of the range in band 2 kHz to 10 kHz.
Number of points : 5 000
Additional error according to crest factor :
« OL » on the display (range 500 mAAC+DC only) and intermittent signal sounds in case of range
overpassing.
blinks and an intermittent signal sounds (10 A
measurements over 10 A

6.2.5. Resistance / Continuity test

Selector switch Ranges
500 Ω
500 Ω
5 kΩ
Ω
50 kΩ
500 kΩ
5 MΩ
50 MΩ
(∗) Overload protection can be reset automatically.
Number of points :5 000
Range selection : auto or manual (fixed in continuity mode)
Maximum open circuit voltage : 7 V
Detection threshold in continuity mode : 10 Ω to 15 Ω
Response time in continuity mode : 1 ms
For measurements in 5 MΩ and 50 MΩ ranges, the use of shielded and very short connection is highly
recommended.
26
Accuracy Max volt. drop Protection Fuses
0.3 % R + 2 D < 600 mV
DC
1 % R + 2 D < 700 mV
DC
Accuracy
Max.
volt.drop
10 kHz to 30 kHz : 5
< 600 mV
1.5 % R + 2 D % R + 2 D
2 kHz to 10 kHz : 5
< 700 mV
% R + 2 D % R + 2 D
0.5 % for a crest factor of 2 to 3
1 % for a crest factor of 3 to 6
and 10 A .
DC DC+DC
Accuracy Measur. current
0.3 % R + 3 D 1 mA
1 mA
0.3 % R + 3 D 100 µA
10 µA
1 µA
0.5 % R + 3 D 100 nA
1 % R + 5 D 50 nA
5000-count portable digital multimeter, with current inputs
Chapter II
(∗)
Resolution
600 V F1 + F2 100 µA
RMS
600 V F2 10 mA
RMS
Fuses
Protection Resolution
(∗)
600 VRMS F1 + F2 100 µAAC+DC
600 VRMS F2 10 mAAC+DC
and 10 A ranges) in case of
DC DC+DC
(∗)
Resolution
Protection
0.1 Ω
0.1 Ω
1 Ω
10 Ω
600 V
RMS
100 Ω
1 kΩ
10 kΩ
DC
DC
Max.
crest
1 A