Electrical Installation Safety Photovoltaic and electrical installation testers MI 3114 PV Tester The MI 3114 PV Tester is a powerful instrument for testing photovoltaic (PV) systems with a maximum system voltage of up to 1500 V and a maximum short circuit current of 40 A. It supports testing in compliance with the IEC 62446-1 standard and supports all measurement procedures, which cover all category 1 tests. This includes PV-specific measurements like insulation resistance measurement of PV strings, Isc and Uoc measurements, as well as the calculation of measured results to STC values and comparison with nominal values given by the PV module's manufacturer. The irradiation and cell temperature are measured in real time with the wireless remote unit. Additionally, all category 1 tests are collected in a single auto test, which enables the user to execute all the 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 selected tests or measurements, store results, and review them. It is also possible to change previously entered wrong parameters on an already executed measurement or a group of measurements. MEASURING FUNCTIONS • 1500 V insulation resistance of strings; • Continuity of PE conductors • Polarity test • Isc and Uoc test 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 • AUTOSEQUENCE • PC SW Metrel ES Manager to prepare measurement structure and measurements in advance, upload or download that structure and then reviews the results, PV modules DB explorer and as final act, the generation of professional report. APPLICATION KEY FEATURES • Auto test for Category1 tests • Calculation of STC values and comparison with nominal data • Correction of previously wrong entered parameters on already executed • Testing of big 1500 V PV plants • First inspection testing • Periodic testing • Maintenance testing • Evaluation and troubleshooting • Report generation STANDARDS Functionality • EN 62446-1 • EN 62446-2 Electromagnetic compatibility • EN 61326-1 Safety • EN 61557 •

ORDERING INFORMATION TECHNICAL SPECIFICATION Function Measuring range ±(1 % of reading + 2 digits) ±1 % of reading ±6 digits ±(1 % of reading + 3 digits) ±1 % of reading Photovoltaic measurements Electrical installation measurements Insulation resistance Roc-, Roc+ Um = 250 V d.c. ±(5 % of reading + 3 digits) ±10 % of reading ±(5 % of reading + 3 digits) ±5 % of reading ±5 % of reading Calculated value ±(3 % of reading + 3 digits) ±5 % of reading ±10 % of reading Colour TFT display, 4.3”, 480 x 272 pixels with touch screen 128x64 dots matrix display with backlight Power supply 9 VDC (6x1.5 V...