Clamp Meter
Basic Measurements
13
Power Quality Indicator (378/378 FC)
The Power Quality indicator shows that the ratio of the real power
compared to the apparent power or harmonic distortion is outside
the optimal range.
To setup:
1. Turn the control knob to U.
2. Connect the Clamp to ground with the ground lead.
If the total harmonic distortion or the power factor is outside
the optimal range, the related indicator shows on the display:
P
Q
R
Fluke Connect software supports the Power Quality indicator.
The Power Quality indicator sensitivity is adjustable:
For information about how to set the sensitivity, see Power-On
Options.
AC/DC Voltage Measurement with Test Leads
To measure ac or dc voltage:
1. Turn control knob to
V or N.
2. Connect the black test lead to the COM terminal and the red
test lead to the
VX terminal.
3. Touch the probes to the test points of the circuit.
The display shows the measurement.
Note
Use
B to toggle on/toggle off the mV function
shown in yellow at the control knob position.
Resistance/Continuity
To measure resistance or continuity:
1. Turn the control knob to
D.
2. Remove power from the circuit to test.
3. Connect the black test lead to the COM terminal and the red
test lead to the VX terminal.
4. Touch the probes to the test points of the circuit.
The display shows the measurement.
If the resistance is <30 Ω, the beeper sounds continuously to
indicate continuity. If the display shows OL, the circuit is open.
To disable the beeper, see Power-On Options.
Function
Sensitivity
High Medium Low
PQ-Amps 10 % THD 25 % THD 50 % THD
PQ-Volts 8 % THD 10 % THD 15 % THD
PQ-PF 0.9 0.75 0.6
To Next Page
Loading...
