GW Instek GDM-8261 User Manual - Manual (Page 33)

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.