PeakTech 3425 Bedienungsanleitung Seite 43

1. LCD-Display:
RANGE-
2.
button:
3. RST-button
4. LPF-button
REL-Taste-
5.
button:
H/backlight-
6.
button:
FUNC-
7.
button:
4 1/2-digit LCD-display with 61-segment bargraph
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.
This is used reset the Meter, without power ON/OFF.
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.
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
Press "HOLD" to enter and exit the hold mode in any
mode. That act with trigger. When press and holding
this key for more than 2 sec., the meter is switched to
the back light mode.
Use the key as switch of AC/DC or Ω/
"FUNC" key is the function select key that acts with
trigger. Use the key as switch of DC/AC,
Resistance/Continuity/Diode and C/°F.
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