24
2.3 Current Measurements (DC & AC)
The ranges for DC current measurements in DL-1060 are 10mA, 100mA, 1A, 3A and
10A. For AC current measurements, the range is 1A with a sensitivity of 1
μ
A to 10A
AC-Coupled T-RMS with a sensitivity of 10
μ
A.
Figure 2-3
shows you how to measure
DC/AC currents in DL-1060.
To avoid damaging the fuse of current input.
⚫
Under current measurements, the input source below 3A or between 3A and 10A
will be measured only through the 3A/10A and LO input connectors.
⚫
Ensure the test leads are correctly connected to the DMM current inputs.
⚫
It
’
s important to prevent the internal fuse damage from abusing source over 3 A
on the 3A input connector or over 10 A on the 10 Amp coonector.
⚫
The measured values will be incorrect under the following conditions.
1.
At 3A terminal, Range: 10 A, Input Source: 3 A
2.
At 10A terminal, Range: 3 A, Input Source: 3 A
⚫
Please do not input the current to both 3A and 10A terminals simultaneously.
⚫
To eliminate the thermal EMFs due to the differences between two metals, use
copper leads to connect your source signal to the meter.
How to measure current
1.
Connect the test leads to the terminals on the front panel.
2.
Set RESOLUTION of DCI (refer to 3.1.3 Resolution & NPLC Setting), BANDWIDTH
of ACI (refer to 3.1.2.1
) or skip this step if default is to be used.
3.
Press SHIFT+DCV (or SHIFT+ACV) buttons for DCI (or ACI) measurement.
4.
Select the auto-range function by pressing SHIFT + ESC buttons on the front
panel or use
△
and
▽
buttons to manully select a desired range.
5.
Connect test leads to your source signal and observe readings shown on the
display. If the input signal is greater than the allowed range, an overflow message
“OVLD” will be
displayed.
Figure 2-3
WARNING
!
