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VOLTCRAFT VC 220 Bedienungsanleitung Seite 20

Digital multimeter
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=
Attention! Dangerous voltage, do not touch!
Spannungen! Danger!
=
Read the operating instructions
CAT II
= Overvoltage category II (two)
= Protection class II
• Measurements of currents are only permitted in such electric circuits which are
secured by 20A and in which the voltages do not exceed 250VDC/VACrms. This
measuring instrument must not be used in installations of overvoltage category III
according to IEC 664.
- Measuring devices and accessories are no toys and do not belong in the hands of
children under any circumstances!
- In commercial institutions, the accident prevention regulations of the Employer's
Liability Insurance Association for Electrical Systems and Operating Materials are
to be observed.
- In schools, training centres, computer and self-help workshops, handling of mea-
suring instruments must be supervised by trained personnel in a responsible man-
ner.
- Make sure that only fuses of the type stated and of the rated current specified are
used as a replacement. Using repaired fuses or bridging the fuse bracket is not
permitted. To replace the fuses disconnect the measuring instrument from the
measurement circuit and switch it off. Remove all connected lines and testing
prods. Use a suitable crosshead screwdriver to open the housing carefully. Remo-
ve the defective fuse(s) and replace it (them) by a fuse(s) of the same type and
rated current.
For the uA/mA range: 0.315A super-quick-acting, 250V, high energy or
for the A range 10A super-quick-acting, 250V, high energy.
22
Compétence d'entrée : 10 M ohms, < 100 pF
Mesure et affichage de la valeur effective de la tension alternative en cas de signal de
mesure sinusoïdal.
Courant continu DCA (µ A et mA et A)
200 µA
±(1,0% +2 ch)
2 mA
±(1,0% +2 ch)
20 mA
±(1,0% +2 ch)
200 mA
±(1,0% +2 ch)
20 A
±(1,2% +8 ch)
courant alternatif ACA (µA et mA et A)
200 µA
±(1,0% +5 ch)
2 mA
±(1,0% +5 ch)
20 mA
±(1,0% +5 ch)
200 mA
±(1,0% +5 ch)
20 A
±(2,2% +5 ch)
Résistance
200 ohms
±(1,0% + 3 ch)
2 k ohms
±(1,0% + 3 ch)
20 k ohms
±(1,0% + 3 ch)
200 k ohms
±(1,0% + 3 ch)
2 M ohms
±(1,0% + 3 ch)
20 M ohms
±(1,5% +5 ch)
Contrôleur de continuité
Il y a signal acoustique d'une continuité en cas de résistances inférieures à env. 50
ohms.
Essai de diodes
La tension de mesure maxi. sur un circuit de mesure ouvert est d'env. 3 VDC maxi.,
résolution d'affichage 1 mV
Courant de mesure env. 1 mA
Test de pile
Résistance de charge env. 38 ohms lors de mesure à 1,5 V , et env. 450 ohms lors de
mesure à 9 V.
0,1 µ A
1 µ A
10 µ A
0,1mA
10 mA
0,1µ A
40 à 400 Hz
1 µ A
40 à 400 Hz
10 µ A
40 à 400 Hz
0,1 mA
40 à 400 Hz
10 mA
40 à 400 Hz
0,1 ohm
1 ohm
10 ohms
0,1 k ohms
1 k ohms
10 k ohms
47

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