Clamp Meter
Before You Start
7
Features/Controls
Table 4 is a list of features and controls.
Table 4. Feature/Control Descriptions
Item
Description
Jaw with FieldSense™ technology
U
Tactile Barrier
Hold
Control Knob
Display
377/378:
@
turn on/turn off the backlight.
377 FC/378 FC:
B
extends the function selection to yellow items on the control
knob. Push >2 s. to turn on/turn off the backlight.
Volts/Ohm input terminal
Common terminal
Min/Max/Avg
for current, voltage, and frequency measurement functions.
Push >2 s. to turn on/turn off the L1-L2-L3 measurement function.
INRUSH
:
push to enter inrush mode. Push a second time to exit inrush mode.
Integration time is 100 ms.
Push >2 s. to start data logging function with the Fluke Connect mobile app.
377/378:
B
extends the function selection to yellow items on the control knob.
377 FC/378 FC:
F
turn on the Fluke Connect feature.
F
turns blue and flashes
when paired with the Fluke Connect mobile phone app. When on, push
F
to
save a measurement to the Fluke Connect mobile app. Push
F
>2 s. to turn off
the Fluke Connect feature.
Jaw release
1
2
3
4
5
6
9
10
11
12
7
8
