KYORITSU KEW6201A Instuction Manual page 23

Extension Leads Test Flowchart
(1). Protective conductor resistance test.
Light up in green
(2). Insulation resistance test between L/N and PE.
Light up in green
(3). Polarity test between L-L and N-N.
Value of (1) and (2) will be
alternately displayed on LCD.
• Short-circuit between L/N and PE is doubt when "no" and "OFF"
appears on the LCD in turns at the insulation resistance measurement
of the Extension leads test for Class I & II while DUT is on. Testing
should be immediately suspended.
• Follow the procedure described in 5.2-3 and do Null setting before a
measurement.
• When the terminal is open or the resistance value exceeds measuring
range, "OL" mark (over range display) appears on the LCD.
• Do not touch the device under test while testing is in progress. Since
a high voltage of 500V, user may get electrical shock.
Start
RPE < = 1Ω?
Yes
LnE > = 1MΩ?
Yes
L-L & N-N < = 10Ω?
Yes
PASS
# CAUTION
— 21 —
No
"no" → "Con" → "value" will
be repeated on the LCD.
No
"no" → "LnE" → "value" will
be repeated on the LCD.
No
"no" → "L-L" → "value" or
"no" → "n-n" → "value" will
be repeated on the LCD.
Light up in red
Light up in red
Light up in red