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Metrel MI3114 Photovoltaic & Electrical Installation Tester

Metrel
SKU: METRMI3114-CONF
  • Complete Category 1 PV testing in a single one‑touch AUTOSEQUENCE
  • Supports system voltages of up to 1500 V and short circuit currents up to 40 A
  • Available in both a Standard and a Pro Set
More Info

Metrel MI3114 Photovoltaic & Electrical Installation Tester

The Metrel MI3114 Photovoltaic & Electrical Installation Tester is a powerful instrument made for accurate testing of modern PV (photovoltaic) systems. It supports system voltages of up to 1500 V and short circuit currents up to 40 A, delivering reliable results that comply with IEC 62446-1 requirements. Testing is streamlined using a one-touch Auto test function that executes all Category 1 procedures in a single sequence, saving time on-site while reducing the risk of missed steps. Key PV measurements include insulation resistance of strings, polarity checks, continuity of protective conductors, and accurate Isc and Uoc readings. Measured values are automatically converted to STC and compared against manufacturer data, giving you immediate clarity on system performance.

A large colour touchscreen makes the MI3114 simple and efficient to operate. The display allows users to prepare and start selected tests or measurements, store results, and review them with ease. If parameters were entered incorrectly, they can be edited even after measurements have been completed, avoiding unnecessary retesting. The integrated memory organiser allows users to manage, search, and group results effectively, while the built-in PV module database helps ensure accurate comparisons.

The MI3114 is available in both a standard and a pro set, each tailored to achieve specific needs. The standard set includes everything needed to get started on photovoltaic system testing, including high-quality test leads, MC4 adapters, communication cables, software, and a calibration certificate. The Pro Set expands capability with a PV remote unit, temperature sensor, reference cell, and additional accessories for advanced diagnostics.

The Pro Set also enhances accuracy with an included wireless remote unit that measures irradiation and cell temperature in real time, ensuring precise environmental data is captured alongside electrical measurements and improving the reliability of results. The MI3114 supports AUTOSEQUENCE testing and seamless data transfer via Metrel ES Manager software, making it easy to prepare test structures, upload results, and generate professional reports.

Built for practical use in the field, the MI3114 features a robust design with IP54 protection (cover closed), a high-capacity Li-Ion battery, and multiple connectivity options including USB, Bluetooth, and Wi-Fi. Its intuitive interface and powerful functionality make it a dependable solution for solar engineers, electricians, and maintenance teams working on 1500 V PV systems.

Key Features

  • Auto test for Category 1 tests
  • Calculation of STC values and comparison with nominal data
  • Correction of previously incorrect parameters on completed measurements or groups of measurements
  • Memory organiser with search functionality and PV modules database handler
  • Wireless (Wi‑Fi) remote unit for irradiation and cell temperature measurement
  • AUTOSEQUENCE function
  • Metrel ES Manager software for preparing measurement structures, uploading/downloading data, reviewing results, and generating professional reports

Metrel MI Series Comparison Table

  MI3114 MI3115 MI3116
Voltage DC ✓ ✓ ✓
Voltage DC 1500 V ✓ ✓ ✓
Current DC ✓ ✓ ✓
Current DC 20 A X ✓ X
Current DC 40 A ✓ X ✓
Power for I/U Curve in PV X ✓ ✓
Isc, Uoc, Polarity ✓ ✓ ✓
PV Insulation ✓ ✓ ✓
Irradiance X ✓ ✓
Module Temperature ✓ ✓ ✓
I-V Curve X ✓ ✓
Extrapolation to STC X ✓ ✓
Umpp, Impp, Pmax X ✓ ✓
Module Database X ✓ ✓
Rs (Calculated in PC SW) X ✓ ✓
DC Side Measurements U ✓ ✓ ✓
DC Side Measurements I ✓ ✓ ✓
DC Side Measurements P X ✓ ✓
Bifacial Modules X X ✓
High Efficiency Modules (20%+) ✓ ✓ ✓
PASS/FAIL Indicators ✓ ✓ ✓
Voltage Monitoring ✓ ✓ ✓
LCD/Backlit Display ✓ ✓ ✓

Specialists In Solar PV Test Equipment

Watch the video above to see how we can help you find the right solar pv test equipment & get in touch on 0113 248 9966 or sales@test-meter.co.uk.

As a leading Solar PV Test Equipment and Solutions provider in the UK, we have a wide range of expertise. Whether you're conducting simple commission tests, small-scale 1000V solar PV rooftop installations or 1500V commercial solar farms to more in-depth IV curve trace analysis, our team ensures your enquiry is looked after from start to finish, providing you with the perfect solution.

Find the best solution for your application and budget through:

  • Onsite-demo/remote consultations on request
  • 'Try Before You Buy' and hire options available
  • After-sales care that provides ongoing calibration and servicing
  • Finding the optimal software package, ensuring the correct reporting and data functionality for your needs

Can't find the right Solar PV Test Equipment or solution? We're on hand to help, please get in touch on 0113 248 9966 or sales@test-meter.co.uk

What’s in MI3114 Standard Set?

  • Instrument MI 3114
  • A 1790 BLU Test lead, Blue, 3m, 2.5mm2
  • A 1790 RED Test lead, Red, 3m, 2.5mm2
  • A 1792 Test lead, Green, 3m, 0.75mm2
  • S 2146 Set PV MC4 to banana adapters 1500 V
  • A 1509 Test lead, Black, 50m, 0.75mm2
  • A 1012 Test lead, Green, 4m, 0.75mm2
  • A 1309 Crocodile clip, Green
  • A 1014 Test probe, Black
  • A 1015 Test probe, Blue
  • A 1016 Test probe, Red
  • A 1727 Communication cable, 1m, USB type B/A
  • A 1728 Power cable, 2m, 3x0.75mm2
  • A 1551 Soft padded carrying bag, Size: L
  • SW 1201 Metrel ES Manager (MESM) (Downloaded free of charge from Web server)
  • P 1000-EU Licence key basic
  • P 1403 3-year Metrel Smart Cloud Pro subscription (Available FREE of charge until the end of June 2026)
  • Calibration certificate for MI 3114
  • User Manual

Part number: MI 3114 ST

What’s in the MI3114 Pro Set?

  • Standard set MI 3114 ST
  • A 1785 PV remote unit
  • A 1833 PV temperature sensor
  • A 1834 PV reference cell
  • 2x A 1835 Clamp for attaching accessories
  • A 1791 Carrying strap with tightening buckle
  • S 2080 6 Rechargeable batteries 1,2 V, 2100 mAh, type AA
  • A 1548 Power supply adapter 0,5A/12V
  • Calibration certificate for A 1785

Part number: MI 3114 PS

Specification

General Specifications

  • Display: Colour TFT display, 4.3”, 480 x 272 pixels with touch screen
  • Power supply: Li-Ion, 14.4 V, 4400mAh, non-removable
  • Overvoltage category: CAT II / 300V
  • Protection classification: Reinforced insulation
  • Pollution degree: 2
  • Degree of protection: IP 54 (cover closed) | IP 40 (cover opened)
  • Altitude: up to 4000 m
  • Memory: Memory card slot, microSD card, up to 512 GB
  • Connectivity RS232: 1 port, DB9 female
  • USB: USB 2.0, standard Type-B
  • Bluetooth: v4.2 BR/EDR and BLE specification 802.11 b/g/n (802.11n up to 150 Mbps)
  • Wi-Fi: (Only for communication with A 1785 - PV Remote WL)
  • Size ( l x h x w ): 310 x 130 x 250 mm
  • Weight: 4.4 kg

For in-depth specifications, please view the datasheet below.
Label Type Size Download
pdf Metrel MI3114 Datasheet pdf 519.7 KB Download