Operation Manual

08/ 2012 27 / 58

BENNING ST 750 A
Selection of individual measurements (tests according to VDE 0701-0702):
ICont Contact current
RInsu-1 Insulating resistance LN–test body Funct. Functional test
RInsu-2 Insulating resistance sec.–test body Cable Continuity test
RInsu-3 Insulating resistance LN–sec. Ua Safety extra-low voltage
Selection of individual measurements (tests according to VDE 0751):
PLeak Patient leakage current
RInsu-1 Insulating resistance LN–test body Funct. Functional test
RInsu-2 Insulating resistance sec.–test body Cable Continuity test
RInsu-3 Insulating resistance LN–sec.
ILeak Device leakage current
10.4.3 SELV (protection class III)
Protection class III: Devices which are operated at safety extra-low voltage only
Menu, VDE 0701-0702 (protection class III)
Selection of individual measurements (tests according to VDE 0701-0702):
RInsu-1 Insulating resistance input–test body
RInsu-2 Insulating resistance output–test body
RInsu-3 Insulating resistance input–output Ua Safety extra-low voltage
10.5 RPE – Protective Conductor Resistance
For measuring, the test cable (probe) is connected to accessible metal parts of the test sample
(protection class I) and to the earthing contact of the mains plug by means of the alligator clip (see
display!). In the start menu, select the corresponding <VDE Standard…> and then <Protection
Class>.In the "Test acc. to VDE.... (Class .)", press the<RPE> button. Start measurement by
pressing <Start>.
The testing current can be set to 200 mA or to 10 A. The limiting values according to VDE 0701-0702
or to VDE 0751-1 are taken into consideration.
Press <+> to measure with reversed polarity. Finish or stop the measurement by pressing <Stop>,
press <Pause>/ <Next> for a measuring pause and press <Reset> to delete the measured value.

Attention! Pressing the <Pause> button will stop the measurement. During the pause,
the test socket will remain live!
08/ 2010 27 / 58

BENNING ST 750
Selection of individual measurements (tests according to VDE 0701-0702):
ICont Contact current
RInsu-1 Insulating resistance LN–test body Funct. Functional test
RInsu-2 Insulating resistance sec.–test body Cable Continuity test
RInsu-3 Insulating resistance LN–sec. Ua Safety extra-low voltage
Selection of individual measurements (tests according to VDE 0751):
PLeak Patient leakage current
RInsu-1 Insulating resistance LN–test body Funct. Functional test
RInsu-2 Insulating resistance sec.–test body Cable Continuity test
RInsu-3 Insulating resistance LN–sec.
ILeak Device leakage current
10.4.3 SELV (protection class III)
Protection class III: Devices which are operated at safety extra-low voltage only
Menu, VDE 0701-0702 (protection class III)
Selection of individual measurements (tests according to VDE 0701-0702):
RInsu-1 Insulating resistance input–test body
RInsu-2 Insulating resistance output–test body
RInsu-3 Insulating resistance input–output Ua Safety extra-low voltage
10.5 RPE – Protective Conductor Resistance
For measuring, the test cable (probe) is connected to accessible metal parts of the test sample
(protection class I) and to the earthing contact of the mains plug by means of the alligator clip (see
display!). In the start menu, select the corresponding <VDE Standard…> and then <Protection
Class>.In the "Test acc. to VDE.... (Class .)", press the<RPE> button. Start measurement by
pressing <Start>.
The testing current can be set to 200 mA or to 10 A. The limiting values according to VDE 0701-0702
or to VDE 0751-1 are taken into consideration.
Press <+> to measure with reversed polarity. Finish or stop the measurement by pressing <Stop>,
press <Pause>/ <Next> for a measuring pause and press <Reset> to delete the measured value.

Attention! Pressing the <Pause> button will stop the measurement. During the pause,
the test socket will remain live!
Besidestheworstmeasuringresult(measuredvalue),theoverallresultisdisplayed(e.g."Pass"in
agreeneldand"Fail"inaredeld).
Besidestheworstmeasuringresult(measuredvalue),theoverallresultisdisplayed(e.g."Pass"in
agreeneldand"Fail"inaredeld).