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Select current range – GW Instek GDM-8261A User manual User Manual

Page 33

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BASIC MEASUREMENT

33

Select Current Range

Auto range

To turn the automatic range
selection On/Off, press the AUTO

key.

AUTO

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

100µA(DC only)

0.1nA

119.9999µA

1mA

1nA

1.199999mA

10mA

10nA

11.99999mA

100mA

0.1µA

119.9999mA

1A

1µA

1.199999A

10A

10µA

10.00000A

DC Current
Range Note:

DC currents with AC components cannot be accurately

measured if the DC+AC component exceed the ADC
dynamic range for the selected DC range. Any current

exceeding the ADC dynamic range will be clipped at the
upper/lower range limit. Under these conditions the

range that is chosen with the Auto range function may be
too small.

A

+2mA

0A

-2mA

C

D

B

E

DC 1mA Range

A,B: Input exceeds the ADC
dynamic range.

C,D: The DCI offset causes
the input to exceed the
upper ADC dynamic range.

E: The DCI offset causes the
input to exceed the lower
ADC dynamic range.