MODE: You can switch between different functions in a measuring
range by pressing the MODE button. In the current and
voltage range is switched between the AC and DC
measurement. Selecting the Ω / CAP / Diode / Continuity
checker range toggles between these measurement
functions. Press and hold the button on the P3445 to
activate the Bluetooth interface of the device for data
transmission.
HOLD: The displayed measured value will be held in the display.
Pressing the HOLD button for about 2 seconds will turn
the backlight on or off.
MAX: Briefly pressing the MAX / MIN button several times cycles
through the maximum value hold function, the minimum
hold function and the AVG average reading. Hold down
the button for about 2 seconds to return to normal mode.
REL: Briefly press the key to switch on the relative value
function and the current measured value is set to "zero".
The AC + DC function measures both the AC and DC
components to derive the effective RMS value (AC + DC).
The AC + DC mode is normally used when measuring the
voltage on unfiltered rectifier circuits. To activate, press
and hold the REL/AC+DC button until "AC+DC" appears in
the LCD.
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