Benning ST 755+ - Optional Accessories; Three-Phase Testing with the BENNING MA 4; Figure 6: BENNING MA 4

Functions
7.9 Optional accessories
5284 / 08/2023 en BENNING ST 755+ / ST 760+ 49
7.9 Optional accessories
7.9.1 Three-phase testing with the BENNINGMA4
The BENNINGMA4 serves as a measuring adapter for testing three-phase test samples and
supports the following measurements (active):
• Protective conductor resistance
• Insulating resistance
• Functional test and phase sequence test of cables
• Alternative leakage current measuring method
– Protective conductor current, contact current, device leakage current, patient leakage
current
• Differential current measuring method
– Protective conductor current
– Device leakage current
• Direct current measuring method
– Contact current
– Patient leakage current
• Functional test (power consumption and current consumption of the test sample cannot be
determined)
• U
a
welding equipment (ST760+)
• PRCD
The test procedures17-22 [}page102] included in the device represent automatic test
procedures for using the BENNINGMA4.
When commissioning the measuring adapter, please observe the supplied operating manual as
well as the instructions for the corresponding individual test.
Figure6: BENNINGMA4