User Manual

BASIC MEASUREMENT

Select Voltage range

Auto range

To turn the automatic range selection

On/Off, press the AUTO key.

Manual range

Press the Up or the Down key to select

the range. AUTO indicator turns Off

automatically. If the appropriate range

is unknown, select the highest range.

Selection list Range Resolution / Full scale @ slow rate

Resolution Full scale

(GDM-8251A)

Full scale

(GDM-8255A)

100mV

1µV 120.000mV 199.999mV

10µV 1.20000V 1.99999V

10V

100µV 12.0000V 19.9999V

100V

1mV 120.000V 199.999V

750V (AC)

10mV 750.00V 750.00V

1000V

(DC, AC+DC)

10mV 1000.0V 1000.0V

Note

For more detailed parameters, see the specifications at

page113.