18
6.1.2
Electrical testing
Protective earth conductor:
Measurement:
See User’s Handbook of the respective safety tester (protective earth conductor measurement, protective earth
conductor testing).
Carry out the corresponding operating instructions with the safety tester on the unit.
NOTE:
The resistance of the mains cable should not be included in the measurements. The resistance should, however, be measured
and subtracted from the measurements on the device.
Measuring points:
Earthing point besides the mains connection bush
Foot controller
Pump
Fixing screws of the pump
Duration of the measurement:
5 - 10 seconds/measuring point
Permissible measured value:
<= 0.1
Ω
Earth current test
Measurement:
See User’s Handbook of the respective safety tester (earth current test).
Adapt a mains cable for the device and safety tester and take the device into service. The earth current is measured in the
protective
earth conductor
of the mains supply line. The earth current before and after pole changing should be recorded in the test report.
Permissible measured values:
N.C. < 500
µ
A
The following 1
st
error is tested:
•
Mains supply interrupted: press SFC mains key, read value and record in test report.
Permissible measured values:
S.F.C. < 1000
µ
A
Housing current test
Measurement:
See User’s Handbook of the respective safety tester (housing current test).
Adapt a mains cable for the device and take it into service. The housing current test is carried out on metallic parts which are not
connected to the protective earth conductor. The housing current before and after pole changing shall be recorded in the test
report.
Measuring points:
Overfl ow contacts on the side
Overfl ow contacts on the housing fl oor
Housing fastening screws on the housing fl oor
Foot controller bush
Fixing screws of the mains connection bush
Permissible measured values:
N.C. < 100
µ
A
After the 1
st
error the following shall be tested:
•
Mains interrupted: Press SFC mains key, read value and record in test report.
Permissible measured values:
S.F.C. < 500
µ
A
•
Protective earth conductor interrupted: Press SFC SL key, read value and record in test report.
Permissible measured values:
S.F.C. < 500
µ
A
6.0 Maintenance and repair
