RS Pro RS-5505 Manual De Instrucciones página 9

The symbol " •))) " is indicated while LOΩ≤35Ω and the buzzer warns
continuously.
" " : Push down the "LOCK" button while testing the insulation
resistance and the symbol "
LOBAT：The display shows "LOBAT" when the voltage drops below
7.5V
MAX/MIN:
Indicates the maximum or the minimum.
ZERO :
Digital zero adjusting。
HOLD :The digital holding function for the primary display.
AC，DC，:The indicator for the voltage property.
:The measured dimension units。
3. INSULATION RESISTANCE MEASUREMENTS
a) Turn the function switch from the "OFF" position to the left to
choose the insulation test voltage（4000MΩ/1000V; 4000MΩ/500V;
4000 MΩ/250V; and 1000 MΩ/125V).
There are 4 ranges namely, 4MΩ; 40 MΩ; 400 MΩ and 4000 MΩ,
that can be switched automatically for every test voltage.
b) Connect two testing lines to the tested.
c) Push down and hold the "TEST" button or press the "LOCK" button
first and then the "TEST" button, If the circuit under test is energized
and its voltage (AC/DC) is over 30V the test will not be performed
and no high-voltage testing is applied, simultaneously,">30V" is
displayed on the LCD, the symbol "
warns frequently. If the circuit under test is de-energized or its
voltage is lower than 30V, it will enter into the insulation testing
process and apply the high-voltage for the insulation test. On the
primary display, the insulation resistance in MΩ is indicated in-phase
with the analog bargraph; on the secondary display, the tested
insulation voltage in V(DC) is indicated, the symbol "
and the buzzer warns frequently.
d) Release the "TEST" button or push down the "TEST" button in the
"LOCK " mode to exit from the "LOCK" status and shut off the high-
voltage, at the same time the resistance values is held in the primary
display and the secondary display will be in the status of monitoring
the insulation voltage for the test.
" is indicated.
" flashes, and the buzzer
" flashes
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