Velleman DVM52IT - Manual (Page 4)

DVM52IT VELLEMAN 4
5.2.3. DC Voltage
Range Resolution Accuracy
1000V 1V ±0.8% of rdg + 3 digits
Input Impedance
10M Ω
Max. Input Voltage 1000V DC or 700V rms AC
5.2.4. Resistance
Range Resolution Accuracy
200 Ω 0.1 Ω ±1.0% of rdg + 3 digits
5.2.5. Continuity
Range Function
Built-in buzzer sounds if continuity exists (resistance < 50 Ω )
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 200
Ω , 700V~, 1000V position. Place the range switch in the 200 Ω , 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.