Urrea UD112, Руководство пользователя и информация о гарантии

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E N G L I S H
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Micro-amps AC and micro-amps DC
measurements (Model UD112).
Milli-amps AC rms and milli-amps DC
measurements (Model UD179). Milli-amps
AC and milli-amps DC measurements (Model
UD112).
Amperes AC rms and amperes DC
measurements (Model UD179) Amperes
AC and amperes DC measurements (Model
UD112)
Push-buttons
The buttons activate features that augment
the function selected with the rotary switch.
RANGE.
Use the RANGE button to manually select
a range. Press and hold RANGE button for
two seconds to return the meter to auto
range mode. The meter is in auto range
mode when the AUTO indicator is on. The
RANGE selection function is not available in
Hz (Duty), CAP, and Temp modes.
The range and units are displayed on the
LCD.
Use this button to set the meter to relative (
) mode and make relative measurements.
Relative zero allows the user to offset the
meter consecutive measurements with the
displaying reading as the reference value.
Practically all displaying readings can be set
as relative reference value. Press the
button momentarily to activate and to exit
relative zero mode.
Press this button to toggle between the
Hz measurement mode and the Duty
measurement mode when the selector
switch is set to Hz (Duty), , , and 10 .
Press this button to turn hold mode ON and
OFF. When the HOLD mode is activated,
the meter beeps, freezes the display, and
displays the D.H indicator on the LCD. HOLD
mode freezes the display for later view.
(Backlight)
Press the HOLD ( ) button for two
seconds to turn the backlight ON
or OFF, when the HOLD function is
simultaneously activated with the D.H
symbol on the display.
Press the HOLD button momentarily
again to activate the Backlight function
only.
Press this button to toggle between
the DC measurement mode and the AC
measurement mode when the rotary
selector switch is set to (Model UD179
only)
, and 10 And also press
this button to cycle through Ω or or
measurement mode when the rotary
selector switch is set to Ω .
5. METER OPERATION
Voltage ( or , ) Measurements
Voltage is the difference in electrical
potential between two points.
The polarity of AC (alternating current)
voltage varies over time, while the polarity
of DC (direct current) voltage is constant
over time.
function defaults at DC. Press SELECT