KYORITSU 6016 User Manual
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Measurement in ATT mode requires longer time than that is required for the other
measurements (approx. 7 sec). When measuring a circuit with a large electrical
noise, the 'Noise' Message is displayed on the LCD and the measurement time
will be extended to 20 sec. If the 'NOISE' symbol is displayed on the LCD, it is
recommended to disable the ATT mode and take a measurement (RCDs may trip).
●
If an impedance of 20Ω or more is measured between L-N during measurements
with ATT enabled, “
L-N>20Ω”is displayed on the LCD and no measurement can be
made. In this case, disable the ATT function and make measurement. When a large
contact voltage exists in the circuit under test,“
N-PE HiV”is displayed on the LCD
and no measurement can be made. In this case, disable the ATT function and make
measurement. Be aware that if the ATT mode is disabled, RCDs may trip.
●
Measured result may be influenced depending on the phase angle of the distribution
system when making measurement near a transformer and the result may lower than
the actual impedance value. Errors in measured result are as follows.
System Phase
Difference
Error
(approx.)
10°
-1.5%
20°
-6%
30°
-13%
●
ATT mode is automatically enabled after one measurement when making a
measurement with ATT mode disabled.
Ω
L-PE
230
V
50.0Hz
L-PE
L-N
!
ATT:ON
Fig.31 Connection for using Outlet