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Kewtech KT72 User Manual

Kewtech KT72
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18
Note
(*4) This instrument conducts a Preliminary measurement before
conducting Protective conductor resistance measurement. In
case that the resistance value exceeds 20Ω, no and Con are
alternately displayed on the LCD, and the next measurement in the
sequence will not be conducted.
Extension leads and appliances with long mains leads have a
greater resistance allowance for earth continui
ty. Please refer to the
table.1 on page 11.
(*5)This instrument displays the test results of protective conductor
resistance as follows.
Green (RPE0.1Ω) = Pass for all appliances
Orange (0.1Ω<RPE<0.3Ω) = Pass for appliances with extended
mains leads
Red (RPE0.3Ω) = Fail
(*6)This instrument has a Re-Start function.
It can proceed to the next step by pressing the Start switch again
ev
en if the result was a fail.
(*7) When conducting Insulation resistance test and Leakage
current test, the appliance under test must be being switched ON.
This instrument automatically detects the condition of power switch
ON. In case that the condition of power switch ON cannot be
detected, oFF and ? are alternately displayed on the LCD, and
the test will be stopped. In this case, pleas
e make sure the power
switch of the appliance is ON.
Th i s i n s tr u m ent wi l l a u to m a tic a lly be p owe r ed o ff a fte r
approximately 10 minutes if no key operation is carried out.
#
CAUTION
Follow the procedure described in 5.3, 5.4 and undertake the
NULL and Voltage setting before taking a measurement.
The crocodile clip must make good contact with the enclosure
of the appliance.
When the terminal is open or the resistance value exceeds the
measuring range, or the leakage current exceeds the measuring
range the > mark (over range display) appears on the LCD.
Do not touch the appliance under test whilst testing is in
progress. Since a high voltage of 250V or 500V will be present
and the user may get an electrical shock.
When the measurement function is completed, turn the
function s
witch back to the OFF position to turn off.
Measuring
method

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Kewtech KT72 Specifications

General IconGeneral
BrandKewtech
ModelKT72
CategoryTest Equipment
LanguageEnglish

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