KYORITSU 3128 - Manual (Page 32)

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KEW3128
6. Measurement KEW3128
capacitors or something like this when short-circuiting/ opening the Line –
Earth (Guard) of the test lead during an insulation resistance measurement
is repeated. In this case, “Noise Error” is displayed on the LCD and further
measurement is ceased. Placing the test leads onto the LCD tends to
cause this phenomenon (indications may be all cleared) ; so do not place
the test leads onto the LCD.
When LCD becomes blank, rotate the Range Switch to the OFF position,
and then set it to any desirable Voltage Range.
* When measuring low resistances (in case that currents larger than
the rated current is output) for a long time, the measured object or
the instrument may become heat and dangerous due to high energy
consumption. So this instrument automatically reduce the output voltages
when measuring low resistances. A message “Stop measuring” is
displayed on the LCD, when low resistances are measured for a long time,
and measurements are stopped.
Temperature inside the instrument is high when “Stop measuring” is
displayed and measurements are ceased. In this case, please wait at least
30 min to make further measurements.
* The Voltage monitor may indicate 10V to 200V instead of 0V when short-
circuiting the Line Probe and Earth Cord when voltages are output. In this
case, voltages applied to the resistors mounted in the internal measuring
circuit are included and displayed on the LCD.