Duratool D03122, Руководство пользователя

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BACKLIGHT FUNCTION
• The instrument is equipped with a backlight function to enable accurate reading of
measurement results in places with bad light. Operations of turning on or off the
backlight are as follows:
• Press and hold the “ ” button for more than 2 seconds to turn on the backlight.
• Press and hold the “ ” button for more than 2 seconds again to turn off the
backlight; or after about 15 seconds the backlight will turn off automatically.
• Note : Frequent use of the backlight will shorten battery life.
• When the battery voltage is less than 4.8V, the display will show “ ” (low
battery) symbol. When using the backlight because of the increased current
draw, the battery voltage may drop below 4.8V and cause the “ ” symbol to be
displayed (when “ ” symbol displays, the accuracy of the measurement cannot
be guaranteed). At this time simply discontinue using the backlight. When the
“ ” symbol is displayed without the use of the backlight, then replace the battery
immediately.
DATA HOLD
• In the process of measurement, if a held reading is required, press the “ ” button,
the displayed value on the screen will be held.
• Press the “ ” button again to clear hold mode.
GENERAL TECHNICAL SPECIFICATIONS
Environmental Conditions 600V CATIV and 1000V CATIII
Pollution Level 2
Altitude <2000m
Working Environment
Temperature and Humidity
0 to 40°C (<80% RH, <10°C non-condensing)
Storage Environment
Temperature and Humidity
-10 to 60°C (<70% RH, remove the battery)
Temperature Coefficient 0.1 x accuracy/°C (<18°C or >28°C)
Max. Voltage Between
Terminals Earth and Ground 1000V DC or 750V AC RMS
Fuse Protection
mA: fuse F600mA/1000V fast speed fuse;
10A shift: F10A/1000V fast speed fuse
Sampling Rate About 3 times/second
Display
6000 counter readout. Automatically display the unit
symbols according to the shift of the measurement
function
Over Range Indication The screen displays “OL”
Low Battery Indication
When battery voltage is lower than the normal
working voltage, “ ” will be displayed
Input Polarity Indication Automatically displays “ ”