Measuring Resistance; Testing For Continuity - Fluke 15B User Manual

15B & 17B
Users Manual
Figure 2. Measuring AC and DC Current

Measuring Resistance

XW Warning
To prevent possible electrical shock, fire, or
personal injury, disconnect power and
discharge all high-voltage capacitors before
you measure resistance, continuity,
capacitance, or a diode junction.
1. Turn the rotary switch to
disconnected from the circuit to be measured.
2. Connect the red test lead to the
black test lead to the COM terminal.
8
AC
apg4f.eps

. Make sure power is

terminal and the
3. Measure the resistance by touching the probes to the
desired test points of the circuit.
4. Read the measured resistance on the display.

Testing for Continuity

With the resistance mode selected, press the YELLOW
button twice to activate the continuity beeper. If the
resistance is under 50 Ω, the beeper will sound
continuously, designating a short circuit. If the meter reads
, the circuit is open.
<50
Figure 3. Measuring Resistance/Continuity
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