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

 
9.2.1  Resistance R LOW

Ω 

 
Measuring range according to EN61557 is 0.16 

Ω ÷ 1999 Ω. 

Ω) Resolution 

Ω) 

0.00 

÷ 19.99 

0.01 

±(3 % of reading + 3 digits)

20.0 

÷ 199.9 

0.1 

200 

÷ 1999 

1 

±(5 % of reading) 

 
Open-circuit voltage...........................6.5 VDC 

÷ 9 VDC 

Measuring current..............................min. 200 mA into load resistance of 2 

Ω 

Test lead compensation.....................up to 5 

Ω 

The number of possible tests ............> 2000, with a fully charged battery 
Automatic polarity reversal of the test voltage.  
 
9.2.2  Resistance CONTINUITY (model TESTBOY TV 450 (TYPE B)) 
 

Ω) Resolution 

Ω) 

0.0 

÷ 19.9 

0.1 

20 

÷ 1999 

1 

±(5 % of reading + 3 digits)

 
Open-circuit voltage...........................6.5 VDC 

÷ 9 VDC 

Short-circuit current ...........................max. 8.5 mA 
Test lead compensation.....................up to 5 

Ω 

 

 
Note: 
All data (marked with “*”) regarding B type RCDs are valid for model TESTBOY TV 450 
(TYPE B) only. 

 

 

Nominal residual current (A,AC) ........10 mA, 30 mA, 100 mA, 300 mA, 500 mA,  

1000 mA 

Nominal residual current accuracy.....-0 / +0.1

⋅IΔ; IΔ = IΔN, 2×IΔN, 5×IΔN  

-0.1

⋅IΔ / +0; IΔ = 0.5×IΔN 

AS / NZ selected: ± 5 % 

Test current shape.............................Sine-wave (AC), pulsed (A), smooth DC (B)* 
DC offset for pulsed test current ........6 mA (typical) 
RCD type ...........................................G (non-delayed), S (time-delayed) 
Test current starting polarity ............. 0 º or 180 º 
Voltage range ....................................50 V 

÷ 264 V (45 Hz ÷ 65 Hz)