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計測機器 Duratool D03128のPDF マニュアルをオンラインで閲覧またはダウンロードできます。Duratool D03128 16 ページ。 Clamp meter
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manual mode automatically.
•
When working at frequency or duty measuring function, the meter can't be
changed into maximum or minimum value measuring mode.
SWITCHING FUNCTIONS
•
The "SEL" key is a function selection key that acts with trigger.
•
Pressing the key can choose the required measurement mode:
- To choose DC or AC in DC/AC status,
- To choose Diode or Buzzer in Diode/Buzzer status,
- To choose Ohm, Cap, Diode or Buzzer in Ohm/Cap/Diode/Buzzer status.
•
Press the "SEL" key, then turn on the power and the 'auto power-off' function will
be cancelled.
•
The signal "APO" disappears in the LCD and it enters into Sleep status (power-
off).
•
Press the key, then power-on will have the 'auto power-off' function.
BACKLIGHT AND CLAMP LIGHTING BULB
•
Press the "HOLD/B.L" button for two or more seconds to switch on the backlight.
The light will stay on for 15 seconds.
•
When the backlight is on, press and hold the "HOLD/B.L" button for two or more
seconds to turn it off.
•
At the current range, when the backlight is switched on, the clamp lighting bulb will
be turned on at the same time.
Note: The LED, which requires a larger working current is the main source of the
backlight. Although the meter is equipped with a timer set at about 15 seconds,
(meaning the light will turn off automatically after about 15 seconds), frequent use of
the backlight will shorten the life of the batteries.
•
When the battery voltage is ≤3.7V, the symbol "
the LCD. When the backlight is on, even if the battery is ≥3.7V, the "
appear because of its large working current, which will cause the voltage to drop.
•
In this case, you need not replace the batteries yet. Normally, the batteries can last
until the "
Note: The accuracy of the measurement cannot be assured when the "
appears.
AUTO POWER-OFF
•
If the mode switch or keys of the meter has no action within 15 minutes, the
system will power off automatically (sleep mode).
•
In auto power-off status, press any key and the meter will "auto power-on"
(operation mode).
PREPARING FOR MEASUREMENT
•
Switch on the power by turning the rotary selector. If the battery voltage is lower
than 3.7V, the "
•
The "
" symbol shows that the input voltage or current should not exceed the
specified value in order to protect the internal circuit from damage.
•
Turn the rotary selector to the required function and range to be measured.
•
Connect the common test lead first and then the charged test leads when making
connection. Take away the charged test lead first when disconnecting.
" appears when the backlight is not being used.
" symbol will appear, meaning the batteries should be replaced.
" (low battery) will appear on
10
" may
" symbol