Testboy TV 455 - Continuity; Resistance R LOWΩ; Resistance CONTINUITY; RCD Testing

®
TV 450/455 Technical specification
65
9.2 Continuity
9.2.1 Resistance R LOW
Ω
Measuring range according to EN61557 is 0.16 Ω ÷ 1999 Ω.
Measuring range R (
Ω) Resolution (Ω)
Accuracy
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
Measuring range (
Ω) Resolution (Ω)
Accuracy
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
9.3 RCD testing
9.3.1 General data
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 ....................................
93 V ÷ 266 V (45 Hz ÷ 65 Hz)