45
4-4 Measuring Resistance by using 4-wire Mode
1. To measure resistance using 4-wire mode, firstly connect two test leads from
V
(
Ω
(
Hz and Sense-Hi terminals to one side of the resistor under test, and then
connect the other two test leads from Lo and Sense-Lo terminals to the
other side of the resistor under test as shown below:
WARNING!
Do not apply a voltage exceeding 250 V peak between
Sense Hi
and
Sense Lo
terminals, and
500 V peak between
V
(
((
(
Ω
(
((
(
Hz
and
Lo
input terminals.
2. to select 4-wire
Ω
measurement function, 4 W annunciator will
be on in the primary display.
3.
, or to select auto-ranging or manual range for
primary display.
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