Benning IT 110 - Page 55

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Table of Contents2
Preface5
Safety and Operational Considerations6
Warnings and Notes6
Batteries8
Charging9
Precautions on Charging of New Battery Cells or Cells Unused for a Longer Period9
Standards Applied10
Description of the BENNING IT 110/ BENNING IT 120 B11
Front Panel11
Connector Panel12
Back Panel12
Bottom View13
Carrying the BENNING IT 110/ BENNING IT 120 B14
BENNING IT 110/ BENNING IT 120 B Set and Accessories14
Standard Set14
Optional Accessories15
Operation of the BENNING IT 110/ BENNING IT 120 B16
Meaning of Symbols and Messages on the Display of the BENNING IT 110/ BENNING IT 120 B16
Online Voltage and Output Terminal Monitor16
Message Field - Battery Status16
Message Field - Measurement Warnings/Messages17
Result Field18
Other Messages18
Sound Warnings18
Function and Parameter Line19
Selecting Measurement Function/Sub-Function19
Setting Measurement Parameters and Limits19
Help Menu19
Setup Menu20
Supply System Setup20
Prospective Short/Fault Current Scaling Factor Adjustment20
Language Selection21
Communication Port Settings (BENNING IT 120 B Only)21
Activating/ Deactivating the COMMANDER (Switchable Probe Tip)21
Recalling Original Settings22
Display Contrast Adjustments23
Measurements24
Insulation Resistance24
Resistance/ Continuity Testing25
Lowω Resistance Measurement25
Continuity27
Testing Rcds29
Limit Contact Voltage29
Nominal Differential Trip-Out Current29
Multiplier of Nominal Residual Current29
RCD Type and Test Current Starting Polarity29
Testing Selective (Time-Delayed) Rcds30
Contact Voltage30
Trip-Out Time32
Trip-Out Current33
Autotest34
Loop Impedance and Prospective Short-Circuit Current (Zs/ Ik)37
Loop Impedance (Loop Resistance, Zl)37
Loop Impedance (Zsrcd)39
Line Impedance and Prospective Short-Circuit Current40
Phase Rotation (Phase Sequence)41
Voltage and Frequency42
Testing the PE Terminal43
Resistance to Earth (BENNING IT 120 B Only)45
TRUE RMS Current (BENNING IT 120 B Only)46
Illumination (BENNING IT 120 B Only)47
Working with Measurement Results (BENNING IT 120 B)49
Saving Measurement Results49
Recalling Measurement Results50
Deleting Measurement Results51
RS232 and USB Communication (BENNING IT 120 B Only)54
BENNING IT 120 B-PC Software54
Maintenance56
Replacing Fuses56
Cleaning56
Periodic Calibration56
Service56
Technical Specifications57
Insulation Resistance57
Resistance/ Continuity Testing57
Lowω Resistance Measurement57
Continuity58
Rcd58
General Data58
Contact Voltage58
Trip-Out Time59
Trip-Out Current59
Loop Impedance and Prospective Short-Circuit Current60
Line Impedance and Prospective Short-Circuit Current61
Phase Rotation (Phase Sequence)61
Voltage and Frequency61
Online Voltage Monitor61
Resistance to Earth62
TRUE RMS Current62
Illumination62
Illumination (BENNING Luxmeter Type B)62
General Data63
Appendix A Fuse Base Tables64
Fuse Base Tables65
Appendix B IT Systems69
Applicable Standards69
Basic Information69
Measuring Guidelines70
Voltage71
Line Impedance71
FI/RCD Testing71
First Fault Leakage Current (ISFL)72
Technical Data73
First Fault Leakage Current (ISFL)73
Appendix C Power Supply Network with Lower Voltage74
Applicable Standards74
Basic Information74
Measuring Guidelines74
Voltage75
FI/RCD Testing75
Line Resistance and Prospective Short-Circuit Current75
Loop Resistance and Prospective Fault Current76
Technical Data76
FI/RCD Testing76
Loop Resistance and Prospective Fault Current78
Line Resistance and Prospective Short-Circuit Current79

Benning IT 110 - Page 55

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