Testboy TV 455VDE-tester Testboy TV 455 Manual Do Utilizador

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Testboy TV 455
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TESTBOY TV 450 
Warnings and notes 
 
  Warnings related to measurement functions: 
 
 Insulation resistance 
 
‰
 
Insulation resistance measurement should only be performed on de-energized 
objects! 
‰
 
Do not touch the test object during the measurement or before it is fully 
discharged! Risk of electric shock! 
‰
 
When an insulation resistance measurement has been performed on a capacitive 
object, automatic discharge may not be done immediately! The warning message 
 and the actual voltage is displayed during discharge until voltage drops below 
10 V. 
‰
 
Do not connect test terminals to external voltage higher than 600 V (AC or DC) in 
order not to damage the test instrument! 
 
Continuity functions 
 
‰
 
Continuity measurements should only be performed on de-energized objects! 
‰
 
Parallel impedances or transient currents may influence test results. 
 
Testing PE terminal 
 
‰
 
If phase voltage is detected on the tested PE terminal, stop all measurements 
immediately and ensure the cause of the fault is eliminated before proceeding 
with any activity! 
 
Notes related to measurement functions: 
 
General 
‰
 
The   indicator means that the selected measurement cannot be performed 
because of irregular conditions on input terminals. 
‰
 
Insulation resistance, continuity functions and earth resistance measurements 
(TESTBOY TV 450 (TYPE B)) can only be performed on de-energized objects. 
‰
 
PASS / FAIL indication is enabled when limit is set. Apply appropriate limit value 
for evaluation of measurement results. 
‰
 
In the case that only two of the three wires are connected to the electrical 
installation under test, only voltage indication between these two wires is valid. 
 
Insulation resistance 
 
‰
 
If voltages of higher than 10 V (AC or DC) is detected between test terminals, the 
insulation resistance measurement will not be performed. If voltages of higher 
than 10 V (AC or DC) is detected between test terminals, the insulation 
resistance measurement will not be performed. 
‰
 
The instrument automatically discharge tested object after finished 
measurement. 
‰
 
A double click of TEST key starts a continuous measurement.