1.
4 1/2-digit LCD-display with 61-segment bargraph
2.
RANGE-button:
In voltage, current or resistance function, pressing this
button causes the symbol “AUTO” on the display to
disappear, it means that the meter changes from
autorange mode to manual range mode. In manual range
mode, press this button to select desired range.
3.
RST-button
This is used reset the Meter, without power ON/OFF.
4.
LPF-button
This key is Low Pass Filter acting key, yet act with trigger.
Press this key to reduce the influence of high harmonic to
measurement result in the AC voltage and current
measurement mode. The frequency band wide of the Low
Pass Filter is 1KHz at 3db). When press this key, “LPF”
sign is displayed on the LCD, it is means the Low Pass
Filter is acted and then when press the key once again,
the “LPF” sign is will not lighted.
5.
REL-Taste-button:
Press the “REL” key, you can measure the relative value
and “REL” sign will appears on the LCD display in the
relative mode. What is meant by the relative value? Press
the “REL” key, the meter make the first measured value
into a reference value (You must be decide a reference
value as the input signal.), and the meter store the
displayed reading as a reference value.
The relative measured value that displayed in LCD is
achieved by subtracting a reference value from the
present reading value.
Vx
– Vref = Vdisplay
In it, Vx
– measured value, Vref – reference value, Vdisp –
displayed value
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