19
1. Select the desired measurement function.
DCI select
ACI select
ACI+DCI select
NOTE:
is effective when the current measurement function is current measurement.
2. Connection
manner
If the current is less than 120mA, connect test leads to the sources as shown in Figure 3-2.
If the current is larger than 120mA, connect test leads to the sources as shown in Figure 3-3.
Figure 3-2 Small Current Measurement Connections
Figure 3-3 Large Current Measurement Connections
3. Range selection and switch
Press
toggles auto ranging. Notice the
AUTO
annunciator is displayed with auto ranging. If you
want manual ranging, use the RANGE
and
keys to select a measurement range
consistent with expected current.
4. How to acquire more accurate measurement result
If the “
.OL
” message is displayed, press up
key to select a higher range until a normal reading
is displayed (or press
key for auto ranging). Use the lowest possible range for the best
resolution.
5. Sampling resistance of current resistance
For the sampling resistance of current measurement, select different resistance value according to the
range.
Summary of Contents for TH1952
Page 74: ...74...
