VOLTCRAFT VC 220 Operations Instructions download pdf (Page 21)

Caractéristiques techniques et

tolérances de mesure

Caractéristiques techniques

Display (affichage) : Affichage à 3

positions 1999 avec affichage

automatique de polarité, affichages de symbo-

les, d'unités de mesure et affectations des rac-

cords

Vitesse de mesure maxi. : 2 à 3 mesures par seconde

Affichage de dépassement : "1 ." pour Overload

Indication de changement de pile : " "

Température de service : 0°C à +40°C (32 °F à 104°F)

Température de stockage : -10°C à +50°C (14°F à 122°F)

Humidité relative de l’air : < 75 %, sans condensation dans une plage de

0°C à +30°C ou

< 50%, sans condensation de +30°C à +40°C

Dimensions (L x l x H) : env. 179 x 88 x 39 mm (avec étui, sans condui-

tes de mesure)

Tolérances de mesure

Affichage de la précision en ± (% de la valeur affichée + nombre de chiffres = chf.) )

La précision est valable pour 1 an à une température comprise entre +18°C et 28 °C,

pour une humidité rel. de l'air inférieure à 75 %, sans condensation. L'échauffement

dure 1 minute

Plage de mesure Précision Résolution Fréquence

Tension continue

200 mV ±(0,6% + 5 ch) 0,1 mV

2 V ±(0,6% + 5 ch) 1 mV

20 V ±(0,6% + 5 ch) 10 mV

200 V ±(0,6% + 5 ch) 100 mV

1000 V ±(1,0% + 5 ch) 1 V

Impédance d’entrée : 10 M ohms

Tension alternative :

2 V ±(1,0% + 5 ch) 1 mV 40 Hz à 400 Hz

20 V ±(1,0% + 5 ch) 10 mV 40 Hz à 400 Hz

200 V ±(1,0% + 5 ch) 100 mV 40 Hz à 400 Hz

750 V ±(1,2% + 5 ch) 1 V 40 Hz à 400 Hz

Close and fasten the hosing carefully in reverse order after having completed the

fuse replacement. Only operate the measuring instrument if the housing is reliably

closed and screwed down.

- Take particular care when dealing with voltages exceeding 30V alternating current

(AC) or 60V direct current (DC). Even at these voltages it is possible to get a fatal

electric shock if you touch electric conductors.

Therefore, first de-energise the voltage source, connect the measuring instrument

to the connections at the voltage source to be measured, set the required voltage

measuring range at the measuring instrument, then switch on the voltage source.

When the measurement has been completed, de-energise the voltage source and

remove the cables from the connections at the voltage source.

- Always make sure before measuring voltages that the measuring instrument is not

set to a current measuring range. At the latest, reset the measuring range if an

audio signal indicating a wrong connection is generated.

- Before changing the measuring range, the test prods have to be removed from the

object to be measured.

- Check your measuring instrument or your measuring lines for damage before star-

ting a measurement.

- For safety reasons, when measuring and charging the measuring device only use

the supplied measuring cables. These are the only cables permitted for use.

- The voltage between the measuring instrument and earth must never exceed

500VDC/VACrms in the over-voltage category II.

- If you have reasons to assume that safe operation is not possible any longer, then

disconnect the appliance immediately and secure it against inadvertent operation.

It must be assumed that safe operation is no longer possible, if

- the instrument is visibly damaged,

- it does not function any longer and

- it has been stored for long periods of time under unfavourable conditions or

- it has been subject to considerable stress in transit.

- Do not switch the measuring instrument on immediately after it has been taken from

a cold to a warm environment. The condensation water generated could destroy

the device. Allow the device to reach room temperature before switching it on.

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VOLTCRAFT VC 220 Operations Instructions Page 21

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