Testboy TV 455VDE-tester Testboy TV 455 Manuel D’Utilisation

 
 

 
For selecting test function the FUNCTION SELECTOR shall be used. 
 
Keys: 

 

Select test / measurement function:

 

 

‰

 

<VOLTAGE TRMS> Voltage and frequency and phase sequence. 

‰

 

<R ISO> Insulation resistance. 

‰

 

<R LOWΩ> Resistance of earth connections and bondings. 

‰

 

<Zline> Line impedance. 

‰

 

<Zloop> Fault loop impedance. 

‰

 

<RCD> RCD testing. 

‰

 

<EARTH RE> Resistance to earth (model TESTBOY TV 450 (TYPE 
B)). 

‰

 

<SETTINGS> General instrument settings. 

 

Selects sub-function in selected measurement function. 

Selects the test parameter to be set or modified. 

Runs selected test / measurement function. 

Stores measured results / recalls stored results (model TESTBOY TV 
450 (TYPE B)). 

 
Keys in test parameter field: 

 

Changes the selected parameter. 

TAB 

Selects the next measuring parameter. 

FUNCTION SELECTOR  Toggles between the main functions. 

Stores measured results / recalls stored results 
(model TESTBOY TV 450 (TYPE B)). 

 
General rule regarding enabling parameters for evaluation of measurement / test result: 

 

OFF 

No limit values, indication: _ _ _. 

Parameter 

ON 

Value(s) – results will be marked as PASS or FAIL in 
accordance with selected limit. 

 
See Chapter 5 for more information about the operation of the instrument test functions.