User’s Manual Smart Digital Power Meter
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2.3 Front Panel
The front panel and function of , as shown in the following figure.
2.3.1 Key function on the front panel
Key Function
Symbol
Description
Power Switch
Press one time to turn “ON”, the power source is enabled, press it again
to turn “OFF”, the power source is disabled.
Left, Right Key
,
Switch sub-menu
：
Use left, right key to select the sub-menu that need
to be edited.
Number editing: Use left, right key to select the data bit that need to be
edited.
For description, use “
←
”,“
→
”to indicate the two keys in the manual.
Up, Down Key
,
Menu editing: Use up, down key to select function item.
Number editing: Use up, down key to increase or decrease the numerical
value.
For description, use “
↑
”,“
↓
”to indicate the two keys in the manual.
Decimal Point Key
Number editing: To move decimal point
Display Hold
Data hold key, when the key is activated, it will keep display the current
data.
PF/Hz
To select the fourth line to display power factor or frequency.
TRMS/
Total
RMS
of
Harmonic
Press this key to enter TRMS display interface, press it again to enter
total RMS of harmonic display interface.
Measurement
value of Harmonic/
Harmonic
Distortion Factor
Press this key to enter harmonic distortion factor display interface,
press it again to enter measurement value of harmonic display interface.
