Voltcraft AT-400 Digital-Multimeter, DMM, 4000 counts CAT IV 600V AT-400 Data Sheet

Product codes

AT-400

Safety Instructions



Please read through the operating instructions before using the product for the

first time; they contain important information on proper operation.

The warranty/guarantee is rendered void in cases of damage resulting from

failure to comply with these operating instructions! We assume no liability for

any consequential damage!

We do not assume any liability for material and personal damage caused by

improper use or non-compliance with the safety instructions! In such cases the

warranty/guarantee is voided.

This device left the factory in perfect condition in terms of safety.

To maintain this status and to ensure risk-free operation, the user must comply with the safety instruc-

tions and warnings contained in these operating instructions.

The following symbols must be observed:



An exclamation mark in a triangle indicates important information in these operating

instructions that has to be strictly observed.

Ꮨ

A lightning symbol in a triangle warns of danger of an electric shock or of the impair-

ment of the electrical safety of the device.

☞

The hand symbol informs you that there are special tips and hints concerning the

operation.

This product is CE certified and meets the necessary European guidelines.

Protection class II (double or reinforced insulation).

CAT II

Overvoltage category II for measurements on electric and electronic devices con-

nected to the mains supply. This category also covers all smaller categories (e.g.

CAT I for measuring signal and control voltages).

CAT III

Overvoltage category III for measuring building wiring installation (e.g. outlets or sub-dis-

tributions). This category also covers all smaller categories (e.g. CAT II for measuring

electronic devices).

Tension alternative
Plage

Résolution

Précision

400 mV

0,1 mV

±(1,5% + 6)

4 V

0,001 V

±(1,2% + 3)

40 V

0,01 V

±(1,5% + 3)

400 V

0,1 V

600 V

1 V

±(2,0% + 4)

Gamme de fréquence 50 – 60 Hz; moyenne effective pour tension sinusoïdale; protection contre

les surcharges 600 V; impédance 10 Mohms

Courant continu
Plage

Résolution

Précision

40 mA

0,01 mA

±(1,5% + 3)

400 mA

0,1 mA

10 A

0,01 A

±(2,5% + 5)

Protection contre la surcharge: 600 V, fusibles; limitation de la durée de mesure >1 A: max. 30 x et

pause de 15 min.

Courant alternatif
Plage

Résolution

Précision

40 mA

0,01 mA

±(1,8% + 5)

400 mA

0,1 mA

10 A

0,01 A

±(3,0% + 7)

Protection contre la surcharge: 600 V, fusibles; limitation de la durée de mesure >1 A: max. 30 x

avec pause de 15 min.; plage de fréquences 50 - 60 Hz

Résistance
Plage

Résolution

Précision

400 Ω

0,1 Ω

±(1,5% + 5)

4 kΩ

0,001 kΩ

±(1,2% + 2)

40 kΩ

0,01 kΩ

400 kΩ

0,1 kΩ

±(1,5% + 2)

4 MΩ

0,001 MΩ

40 MΩ

0,01 MΩ

±(2,5% + 3)

Protection contre la surcharge 600 V