METREL MI 3115 PV Analyser Owner’s Manual

Table of Contents

Specifications

Photovoltaic measurements:
- Function: Photovoltaic and electrical installation tester MI 3115 PV Analyser
- Measuring range: Voltage: 20.0 … 199.9 VDC to 200 … 1699 VDC; Current: 0.10 … 9.99 ADC to 10.00 … 19.99 ADC; Power: various ranges up to 29.9 kW
- I/U curve: 1500 V/ 20 A / 30 kW
- Irradiation: 300 … 999 W/m2 to 1.00 … 1.75 kW/m2
- Temperature: -10.0 … 85.0°C
Electrical installation measurements:
- Insulation resistance Roc- and Roc+: Measured at Um = 250 V d.c. and Um = 500 V d.c., 1000 V d.c., and 1500 V d.c.
- Continuity: 0.00 … 19.99 Ω to 200 … 1999 Ω
General Display: Colour TFT display, 4.3 inches, with touch screen
Power supply: Li-Ion, 14.4 V, 4400mAh, non-removable
Memory: Memory card slot, microSD card, up to 512 GB
Connectivity: RS232, USB, Bluetooth, Wi-Fi
Size and Weight: Main unit: 420 x 180 x 330 mm, 6.8 kg; Remote unit: 140 x 80 x 230 mm, 1 kg

Preparation and Start of Test or Measurement
To prepare and start a test or measurement, follow these steps:
Turn on the instrument using the power button.
Use the large colour touch screen display to select the desired test or measurement.
Enter any required parameters for the test.
Initiate the test or measurement by pressing the start button.
Reviewing Results and Storing Data
To review results and store data, use the following steps:
After the test or measurement is completed, navigate to the results section on the display.
Review the results displayed on the screen.
If satisfied, choose to store the results in the memory of the instrument.
Using SW 1201 Metrel Electrical Safety Manager (MESM)
If you wish to utilize the software tool MESM for advanced analysis and reporting, follow these steps:
Connect the instrument to a computer with MESM installed.
Prepare measurement structure and measurements in advance using MESM.
Upload or download the prepared structure to/from the instrument.
Analyze I/U curve data and generate professional reports with MESM.

Frequently Asked Questions (FAQ)

Q: Can I change parameters after a measurement has been executed?
A: Yes, it is possible to change previously entered wrong parameters on an already executed measurement or a group of measurements using the instrument’s interface.
Q: How many results can be stored in the memory?
A: The instrument can store more than 3000 results in a circular buffer.
Q: What is the maximum insulation resistance that can be measured?
A: The insulation resistance can be measured up to 199.9 MΩ for Roc- and Roc+ at Um = 250 V d.c., and up to 999 MΩ at higher voltages.

PRELIMINARY
Photovoltaic and electrical installation tester
MI 3115 PV Analyser

The MI 3115 PV Analyser is a powerful instrument for testing photovoltaic (PV) systems with a maximum system voltage of up to 1500 V. It enables testing in compliance with the IEC 62446-1 standard and supports measurements, which cover all category 1 and category 2 tests. This includes PV measurements like insulation resistance measurement of PV strings, I/U characteristic measurements as well as the calculation of measured results to STC values and comparison with nominal values given by the PV modules manufacturers. The irradiation and cell temperature are measured in real time with the wireless remote unit. The category 1 tests are collected in one auto test which enables the user to perform all the needed tests with a single touch of the start button.
The instrument can be controlled via a large colour touch screen display from which the user can prepare and start the selected test or measurement, store results, and review them. Additionally, it is possible to change previously entered wrong parameters on an already executed measurement or a group of measurements.
The instrument is fully supported in SW 1201 Metrel Electrical Safety Manager (MESM) (comes with the instrument). With this powerful software tool, the user gets the possibility to prepare measurement structure and measurements in advance, upload or download that structure and then review the results, performs advanced analysis of the I/U curve, and finally generates a professional report.

Category 1 tests :

Insulation and I/U measurement of 1500 V\ PV systems in one instrument.
Auto test for Category1 tests.
Calculation of STC values and comparison with nominal data.
Correction of previously wrong entered parameters on already executed measurement or group of measurements.
Memory organizer, operations on single or group of measurements, search functionality, PV modules database handler.
Wireless (Wi-Fi) remote unit for measuring of irradiation and cell temperature.
Numerical and graphical result presentation on large colour touch screen display.
AUTOSEQUENCE.
PC SW Metrel ES Manager to prepare measurement structure and measurements in advance, upload or download that structure and then reviews the results, performs advanced analysis of the I/U curve, PV modules DB explorer and generation of professional report.