reedinstruments
www
com
12
Resistance Ω Measurement
WaRninG: To avoid electric shock, disconnect power to the unit under test
and discharge all capacitors before taking any resistance mea
-
surements. Remove the batteries and unplug the line cords.
1. Insert the black test lead into the negative COM terminal and the red
test lead into the positive Ωterminal.
2. Set the function switch to Ω.
3. Make sure the power of the circuit being measured is off.
4. Connect the test leads to the circuit being measured. The range will
change automatically, and will be held on the range that will display the
measured resistance with the best resolution.
5. The value indicated on the display is the measured value of resistance
to the correct decimal point and annunciation indication.
Continuity Check
WaRninG: To avoid electric shock, never measure continuity on circuits
or wires that have voltage on them.
1. Insert the black test lead into the negative COM terminal and the red
test lead into the positive Ω terminal.
2. Set the function switch to the diode/continuity
position.
3. To select continuity test measurement mode, press the MODE button
until the (diode/buzzer)
symbol appears in the display on the left
hand side. In the continuity mode, a buzzer will sound when the resis
-
tance of the circuit to be measured is less than approximately 30Ω.