Fluke 381 Fluke 381 Users Manual - Page 27

AC and DC Voltage, terminal. See - ac dc remote meter

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Remote Display True-rms Clamp Meter Measurements Note When the measured current is < 0.5 A, the center dot in the display icon (X) will flash on and off. With current > 0.5 A, the center dot will be steady. 5. Observe the current value on the Meter display. If the Flexible Current Probe does not perform as expected: 1. Inspect the coupling system to make sure that it is connected and closed correctly or for any damage. If any foreign material is present, the coupling system will not close properly. 2. Inspect the cable between the Flexible Current Probe and the Meter for any damage. D 3. Check that the Rotary Function Switch of the Meter is in the correct position ( ). AC and DC Voltage To measure ac or dc voltage: 1. Turn the Rotary Function Switch to the proper voltage function (V or L). 2. Connect the black test lead to the COM terminal and the red test lead to the G terminal. See Figure 6. 3. Measure the voltage by touching the probes to the desired test points of the circuit. View the reading on the display. 23

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Remote Display True-rms Clamp Meter
Measurements
23
Note
When the measured current is < 0.5 A, the center dot in the display icon (
X
) will flash
on and off. With current > 0.5 A, the center dot will be steady.
5.
Observe the current value on the Meter display.
If the Flexible Current Probe does not perform as expected:
1.
Inspect the coupling system to make sure that it is connected and closed correctly or for any
damage. If any foreign material is present, the coupling system will not close properly.
2.
Inspect the cable between the Flexible Current Probe and the Meter for any damage.
3.
Check that the Rotary Function Switch of the Meter is in the correct position (
D
).
AC and DC Voltage
To measure ac or dc voltage:
1.
Turn the Rotary Function Switch to the proper voltage function (
V
or
L
).
2.
Connect the black test lead to the
COM
terminal and the red test lead to the
G
terminal. See Figure 6.
3.
Measure the voltage by touching the probes to the desired test points of the circuit. View the
reading on the display.