Kusam-meco KM 805s, Руководство по эксплуатации, Страница: 10 / 12

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Relative zero Δ mode allows the user to offset the meter consecutive
measurements with the displaying reading as the reference value.
The display will now show readings relative to the stored reference
value. That is, display = reading - stored value. Press the Δ button
momentarily to activate or to exit relative zero mode.
Relative zero Δ mode
The meter beeps to warn the user against possible damage to the
meter due to improper connections to the  A, mA, or A input
jacks when other function (like voltage function) is selected.
Beep-Jack™ Input Warning
CAUTION
When measuring a 3-phase system, special attention should be
taken to the phase-to-phase voltage which is significantly higher
than the phase-to-earth voltage. To avoid exceeding the voltage
rating of the protection fuse(s) accidentally, always consider the
phase-to-phase voltage as the working voltage for the protection
fuse(s).
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The meter will enter a low power consumption sleep mode auto-
matically to extend battery life after approximately 30 minutes of no
rotary-switch or push button operations. To wake up the meter from
sleep mode, press any button momentarily or turn the rotary-
switch to an adjacent position. Always set the rotary-switch to the
OFF position manually when the meter is not in use.
Manual or Auto-ranging
Press the RANGE button momentarily to select manual-ranging
mode, and the meter will remain in the range it was in, the LCD
annunciator turns off. Press the button momentarily again to
step through the ranges. Press and hold the button for 1 second or
more to resume auto-ranging mode.
AUTO
Note : Manual ranging mode feature is not available in Hz & Cx
functions.
The hold feature freezes the display for later view. Press the
HOLD button momentarily to activate or to exit the hold feature.
HOLD
H
H
The max feature compares and displays the measured maximum
value as fast as 25ms in a single range, and with automatic up
range capability. Press the MAX button for 1 second or more to
activate or to exit the max feature in the voltage or current functions.
MAX
H
H
Sleep Mode