Protective Conductor Resistance; Insulating Resistance; Protective Conductor Current And Contact Current By Means Of Alternative Leakage Current Measurement Method; Protective Conductor Current (Differential Current Measurement Method) - Benning ST 725 Notice D'emploi

7.1 Protective conductor resistance

Measuring range
0.05 Ω - 19.99 Ω
Testing current:
Open-circuit voltage:
Preset limiting value:

7.2 Insulating resistance

Measuring range
0.1 MΩ - 19.99 MΩ
Testing voltage:
Testing current:
Preset limiting value:
7.3 Protective conductor current and contact current by means of alternative leakage
current measurement method
Measuring range
0.25 mA - 19.99 mA
Testing voltage:
Testing current:
Preset limiting value:

7.4 Protective conductor current (differential current measurement method)

Measuring range
0.25 mA - 19.99 mA
Nominal voltage:
Rated current:
Max. breaking capacity:
Max. lamp load:
Max. measuring duration:
Preset limiting value:
Resistance to external voltages:
For non-sinusoidal current supply, an additional error has to be considered:
crest factor of > 1.4 to 2.0, additional error + 0.4 %
External magnetic fields might influence the measuring result additionally.

7.5 Contact current (direct measurement method)

Measuring range
0.1 mA - 1.99 mA
Nominal voltage:
Rated current:
Max. breaking capacity:
Max. lamp load:
Max. measuring duration:
Preset limiting value:
07/ 2018
Resolution
0.01 Ω
Resolution
0.01 MΩ
250 V
DC
> 1 mA, < 2 mA at 2 kΩ
1 MΩ (protection class I), 2 MΩ (protection class II)
Resolution
0.01 mA
3.5 mA (protection class I), 0.5 mA (protection class II)
Resolution
0.01 mA
230 V ± 10 % (as mains feed-in)
3.5 mA (protection class I)
Resolution
0.01 mA
230 V ± 10 % (as mains feed-in)
0.5 mA (protection class II)
BENNING ST 725
Measuring accuracy
5 % ± 2 digits
> 200 mA (2 Ω)
4 V - 9 V
0.3 Ω
Measuring accuracy
5 % ± 2 digits
/ 500 V , + 20 %, - 0 %
DC
Measuring accuracy
5 % ± 2 digits
40 V , 50 Hz
AC
< 10 mA at 2 kΩ
Measuring accuracy
5 % ± 2 digits
16 A
3000 VA
1000 W
30 seconds
max. 276 V
Measuring accuracy
5 % ± 2 digits
16 A
3000 VA
1000 W
30 seconds
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