Velleman DVM8264 Mode D'emploi page 4

4. Operating Instructions
a. Data Hold Mode
The data hold function makes the meter stop updating the display. This function can be cancelled by changing the
measurement mode or by pushing the HOLD key again.
To enter the mode:
1. Press the HOLD key.
2. A second short press returns the meter to the normal mode.
b. Battery Saver
Turn on the meter. The meter turns off automatically after approximately 30 minutes.
c. AC and DC Voltage Measurement
To avoid electrical shock and/or damage to the instrument, do not attempt to measure
voltages exceeding 1000VDC / 750VAC rms.
To avoid electrical shock and/or damage to the instrument, do not apply more 1000VDC or
750VAC rms between the COM terminal and the earth ground.
Voltage is the difference in electrical potential between two points. The polarity of AC voltage varies over time; the
polarity of DC voltage is constant. The meter's DC voltage ranges are 200mV, 2V, 20V, 200V and 1000V; AC
voltage ranges are 2V, 20V, 200V and 750V.
To measure AC or DC voltages:
1. Set the rotary switch to the proper range.
2. Connect the black and red test leads to the COM and V terminals respectively.
3. Connect the test leads to the circuit being measured.
4. Read the displayed value. The polarity of the red test lead connection will be indicated when making a DC
measurement.
NOTE: The displayed values may be unstable especially at 200mVDC and 2VDC ranges even though you do not
put the test leads into the input terminals. If an erroneous reading is suspected, short the V and the COM
terminal and make sure the LCD displays a zero value.
d. Resistance Measurement
To avoid electrical shock and/or damage to the instrument, disconnect the circuit power and
discharge all high-voltage capacitors before measuring resistance.
Resistance is an opposition to current flow. The unit of resistance is ohm ( ). The meter's resistance ranges are
200 , 2k , 20k , 200k , 2M , 20M and 200M .
To measure resistance:
1. Set the rotary switch to the proper range.
2. Connect the black and red test leads to the COM and
3. Connect the test leads to the circuit being measured and read the displayed value.
DVM8264
appears on the display.
- 4 -
terminals respectively.
VELLEMAN