Function Buttons; Backlight Brightness - Klein Tools CL390 Manuel D'utilisation

ENGLISH
ON/OFF
To power ON the meter, rotate the Function Selector switch
the OFF setting to any measurement setting. To power OFF the meter,
rotate the Function Selector switch
Power Off icon
will automatically power OFF after 5 minutes of inactivity. If the meter
automatically powers-OFF while in a measurement setting, press any
button to power the meter ON, or rotate Function Selector
to OFF, then power ON the meter. To deactivate Auto-Power OFF
functionality press and hold the "SEL/NCV" button
ON from the OFF setting. When Auto-Power OFF is deactivated, the
Auto-Power Off icon
SEL / NCV BUTTON (FOR SECONDARY FUNCTIONS)
Pushing the SEL/NCV button
for each application accessible by the function selector switch
For voltage and current (excluding DC uA), it toggles between AC
and DC. For the other functions, it switches between °F and °C,
between Hz and % Duty-cycle, and between Continuity, Resistance,
Capacitance and Diode-Test. The default function for each application
is printed on the meter in white; the secondary function or functions
for each setting is printed on the meter in orange.
SEL / NCV BUTTON (FOR NCV TESTING)
Press and hold the SEL/NCV button
Testing (NCV) mode to test for presence of AC voltage. The NCV
icon and "EF" will be present on the display. Approach the conductor
under test leading with the sensing antenna
voltage, the red NCV light
sound, and dashes will appear on the display. As the NCV sensing
antenna approaches the voltage source, more dashes will be
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presented on the display and the frequency of the audible sound will
increase. Release the SEL/NCV button to exit NCV testing mode
NOTE: Only voltages of 40V AC or greater will be detected.

BACKLIGHT BRIGHTNESS

Press and hold the HOLD/Brightness button
high and low brightness for the backlight. By default, the meter will
use the low brightness setting.
RANGE
The meter defaults to auto-ranging mode for voltage and resistance
measurements. This mode automatically determines the most
appropriate measurement range for the testing that is being conducted.
The icon will be visible in the display. To manually force the meter
to measure in a different range, use the "RANGE" button
1. Press the "RANGE" button
range (
"RANGE" button
once the desired range is reached.
2. To return to auto-ranging mode, press and hold the "RANGE"
button for more than two seconds (
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8

FUNCTION BUTTONS

will be visible in the display. By default, the meter
will not be visible in the display.
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is deactivated on the LCD). Repeatedly press the
to cycle through the available ranges, stopping
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to the OFF setting. The Auto-
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activates the secondary function
12 to enter Non-contact Voltage
will flash, audible signals (beeps) will
to manually select measurement
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before powering
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. In the presence of AC
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to toggle between
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.
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is reactivated).
from
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switch
.
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