Velleman DVM52IT Manuel d'utilisateur télécharger pdf (Page 4)

DVM52IT VELLEMAN

5.2.3. DC Voltage

Range Resolution Accuracy

1000V 1V ±0.8% of rdg + 3 digits

Input Impedance 10MΩ

Max. Input Voltage 1000V DC or 700V rms AC

5.2.4. Resistance

Range Resolution Accuracy

200Ω 0.1Ω

±1.0% of rdg + 3 digits

5.2.5. Continuity

Range Function

Built-in buzzer sounds if continuity exists (resistance < 50Ω)

Open Circuit Voltage ±2.5V

Overload Protection 250V DC or rms AC

6. Operating Instructions

6.1. Selecting the Appropriate Function and Range

When measuring AC voltage, DC voltage or resistance or when performing a continuity test, you should place the

function switch in the 200Ω , 700V~, 1000V position. Place the range switch in the 200Ω , 700V~ or

1000V position.

When measuring insulation resistance, you should place the function switch in the MANU., LOCK 1min., LOCK 2min.

or LOCK 4min. position. The device will produce a humming sound every 2 seconds and the display will show a

random reading if either the range or the function switch is in the wrong position.

6.2. Sonorous and Visual Alarm Signals

The device will emit a humming sound every two seconds and the red high voltage output indicator in the top right-

hand corner of the LCD will flash if the test button is pressed while the insulation range is selected.

6.3. Data-Hold Function

Simply toggle the hold switch to the right if you want to hold a particular value while measuring. The data-hold symbol

appears on the LCD. Slide the switch to the left again to leave the data-hold mode.

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Velleman DVM52IT Manuel d'utilisateur Page 4