MI 3122 Smartec Z Line-Loop / RCD Table of contents
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Table of contents
1Preface ..................................................................................................................................5
2Safety and operational considerations ..............................................................................6
2.1Warnings and notes...........................................................................................................6
2.2Battery and charging..........................................................................................................8
2.2.1New battery cells or cells unused for a longer period................................................9
2.3Standards applied............................................................................................................10
3Instrument description ......................................................................................................11
3.1Front panel.......................................................................................................................11
3.2Connector panel ..............................................................................................................12
3.3Back site ..........................................................................................................................13
3.4Display organization ........................................................................................................14
3.4.1Terminal voltage monitor .........................................................................................14
3.4.2Battery indication .....................................................................................................14
3.4.3Message field...........................................................................................................14
3.4.4Result field...............................................................................................................15
3.4.5Sound warnings.......................................................................................................15
3.4.6Help screens............................................................................................................15
3.4.7Backlight and contrast adjustments.........................................................................16
3.5Instrument set and accessories .......................................................................................17
3.5.1Standard set.............................................................................................................17
3.5.2Optional accessories................................................................................................17
4Instrument operation .........................................................................................................18
4.1Function selection............................................................................................................18
4.2Settings............................................................................................................................19
4.2.1Language.................................................................................................................19
4.2.2Initial settings...........................................................................................................20
4.2.3Memory....................................................................................................................21
4.2.4Date and time...........................................................................................................21
4.2.5RCD standard..........................................................................................................21
4.2.6Isc factor ..................................................................................................................23
4.2.7Commander.............................................................................................................23
5Measurements ....................................................................................................................24
5.1Testing RCDs ..................................................................................................................24
5.1.1Contact voltage (RCD Uc) .......................................................................................25
5.1.2Trip-out time (RCDt).................................................................................................26
5.1.3Trip-out current (RCD I)...........................................................................................27
5.1.4RCD Autotest...........................................................................................................27
5.2Fault loop impedance and prospective fault current ........................................................30
5.3Line impedance and prospective short-circuit current .....................................................32
5.4Voltage, frequency and phase sequence ........................................................................34
5.5PE test terminal ...............................................................................................................36
6Data handling......................................................................................................................38
6.1Memory organization .......................................................................................................38
6.2Data structure ..................................................................................................................38
6.3Storing test results ...........................................................................................................40
6.4Recalling test results........................................................................................................40
6.5Clearing stored data ........................................................................................................42
6.5.1Clearing complete memory content.........................................................................42
