
MI 3109 EurotestPV Lite Table of contents
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Table of contents
1Preface ....................................................................................................................5
2Safety and operational considerations.................................................................6
2.1 Warnings and notes ..........................................................................................6
2.2 Battery and charging .........................................................................................9
2.3 Standards applied ...........................................................................................11
3Instrument description.........................................................................................12
3.1 Front panel......................................................................................................12
3.2 Connector panel..............................................................................................13
3.3 Back side.........................................................................................................14
3.4 Instrument set and accessories.......................................................................15
3.4.1 Standard set MI 3109............................................................................................15
3.4.2 Optional accessories.............................................................................................16
4Instrument operation............................................................................................17
4.1 Display and sound...........................................................................................17
4.1.1 Warnings...............................................................................................................17
4.1.2 Battery indication...................................................................................................17
4.1.3 Messages..............................................................................................................17
4.1.4 Results..................................................................................................................18
4.1.5 Help screens.........................................................................................................18
4.1.6 Backlight and contrast adjustments.......................................................................19
4.2 Function selection ...........................................................................................19
4.3 Instruments main menu...................................................................................20
4.4 Settings ...........................................................................................................20
4.4.1 Memory.................................................................................................................21
4.4.2 Language..............................................................................................................21
4.4.3 Date and time........................................................................................................21
4.4.4 Initial settings ........................................................................................................22
4.4.5 Clamp Settings......................................................................................................23
4.4.6 Synchronization (A 1378 - PV Remote unit) ..........................................................23
4.4.7 Solar settings ........................................................................................................25
4.4.8 Accessories...........................................................................................................28
4.4.9 Communication .....................................................................................................28
5Measurements ......................................................................................................32
5.1 Insulation resistance........................................................................................32
5.2 Resistance of earth connection and equipotential bonding .............................34
5.2.1 R LOWΩ, 200 mA resistance measurement..........................................................34
5.2.2 Continuous resistance measurement with low current...........................................35
5.2.3 Compensation of test leads resistance..................................................................36
5.3 PV inverter test................................................................................................37
5.4 PV panel test...................................................................................................42
5.5 Measuring of environmental parameters.........................................................44
5.5.1 Operation with A 1378 PV Remote Unit.................................................................46
5.6 Uoc / Isc measurement....................................................................................46
5.7 I / V curve measurement .................................................................................48
5.8 Automatic measurement procedure according to IEC/ EN 62446 (Auto) ........50
5.9 Measurement of cell temperature before test..................................................52