METREL EurotestPV Lite MI 3109 User Manual

EurotestPV Lite
MI 3109
Instruction manual
Version 1.6.2, Code no. 20 752 022

METREL EurotestPV Lite MI 3109 Specifications

General

Category	Measuring Instruments
Manufacturer	METREL
Data Logging	Yes
Type	PV Tester
DC Voltage Measurement Range	0 to 1000 V
DC Current Measurement Range	0 to 15 A
DC Current Measurement Accuracy	±1% of reading ±2 digits
Insulation Resistance Test Voltages	250 V, 500 V, 1000 V
PV Module Temperature Measurement	-20°C to +80°C
Display	LCD with backlight
Communication Interface	USB
Power Supply	Rechargeable battery
Operating Temperature	-10°C to +50°C
Storage Temperature	-20 °C ... +60 °C

Summary

2 Safety and operational considerations

2.1 Warnings and notes

General safety warnings and potential hazards during operation.

3 Instrument description

3.1 Front panel

3.2 Connector panel

4 Instrument operation

4.1.1 Warnings

Explains various warning messages displayed on the instrument screen.

4.1.3 Messages

Details various operational messages and alerts shown by the instrument.

4.2 Function selection

How to navigate and select measurement functions and sub-functions.

4.4 Settings

Accessing and configuring various instrument settings.

4.4.1 Memory

4.4.6 Synchronization (A 1378 - PV Remote unit)

4.4.7 Solar settings

4.4.9 Communication

4.4.9.2 Searching for the Metrel Powermeter with Bluetooth connection and pairing with EurotestPV Lite instrument

4.4.9.3 Initialization of the Bluetooth dongle(s)

5 Measurements

5.1 Insulation resistance

Procedure for measuring insulation resistance on PV installations and earth.

5.2 Resistance of earth connection and equipotential bonding

Measuring effectiveness of earth connections and equipotential bonding.

5.2.1 R LOWΩ, 200 mA resistance measurement

Performing low resistance measurements using 200 mA current.

5.3 PV inverter test

Testing PV inverter operation and calculating efficiency.

5.4 PV panel test

Testing PV panel operation and comparing measured vs. nominal data.

5.5 Measuring of environmental parameters

5.6 Uoc / Isc measurement

Measuring open circuit voltage and short circuit current for PV systems.

5.7 I / V curve measurement

Checking PV panel operation and diagnosing faults using I/V curves.

5.8 Automatic measurement procedure according to IEC/EN 62446 (Auto)

Performing a complete automated test sequence for PV systems.

6 Data handling

6.1 Memory organization

6.2 Data structure

6.3 Storing test results

6.4 Recalling test results

6.5 Clearing stored data

6.5.1 Clearing complete memory content

6.5.2 Clearing measurement(s) in selected location

6.5.3 Clearing individual measurements

6.6 Communication

6.6.1 USB and RS232 communication

6.6.2 Bluetooth communication

8 Maintenance

9 Technical specifications

9.1 Insulation resistance (of PV systems) Roc+, Roc- and Roc

Detailed technical specifications for insulation resistance measurements.

9.2 Continuity

Technical specifications for continuity and low resistance measurements.

9.2.1 Resistance R LOWΩ

Technical specifications for R LOWΩ resistance measurements.

9.3 PV tests

Technical specifications for various PV tests including panel, inverter, I-V, Uoc/Isc.

9.3.2 Panel, Inverter

Technical specifications for panel and inverter measurement parameters.

9.3.3 I-V curve

Technical specifications for I-V curve measurement.

9.3.4 Uoc - Isc

Technical specifications for Uoc-Isc measurement.

9.4 Autotest

Technical specifications for the automatic test function.

Appendix E – PV measurements - calculated values