KYORITSU 3127 User Manual
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6-11 Filter function
KEW3127 has Filter function. Filter Mode is effective to reduce the variations in
readings due to external influences during high resistance measurements. The
filter type is Low pass filter with cut off frequency of 0.3Hz.
Press the FILTER button(
) to enable the Filter function. The Filter mark then
appears on the LCD. To check sudden variations in resistances, ensure that the
Filter mode is turned off.
6-12 Backlight function
This function to facilitate working at dimly illuminated location or at nighttime
work. The backlight doesn’t work when the Range switch is set to“OFF”. It
automatically turns off 1 min after the last key operation; this feature is disabled
while a measurement is processed.
6-13 Auto-power-off function
The instrument automatically turns off approx. 10 min. after the last switch
operation. To restore from the auto power off status, set the Range switch to OFF
position once and then set it to any desirable range.
Indicator
Power supply
Ｌ
Ｇ
Ｅ
Leakage current
Conductor
Insulation
Protective wire
Cable with sheath
（Insulation resistance tester）