METREL MI 3108 Eurotest PV



Datasheet


Manual

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Product Introduction
Product Features
Technical Details
Accessories
Product Introduction

MI 3108 EurotestPV is a combined photovoltaic tester and electrical installations safety tester. It enables complete testing of electrical installations according to EN 61557 standards and in addition performs all necessary tests required on single-phase photovoltaic (PV) installations. This includes all of the tests as required by EN 62446, but also includes I – U characteristic, Calculation of STC values and power measurements on Inverter’s DC and AC sides. The unit is designed for the demanding working conditions (up to 1000 V, with 15 A DC). To greatly improve user safety the MI 3108 EurotestPV comes with the PV Safety Probe which ensures safe disconnection every time.

MEASURING FUNCTIONS

Photovoltaic installations:

Measurements on DC side of PV installation:

  • Voltage, current, power;
  • Uoc (Open Circuit Voltage) and Isc (Short Circuit Current);
  • I – U curve of PV modules and strings;
  • Irradiance;
  • Module temperature.

Measurements on AC side of PV installation (power quality):

  • Voltage, current, frequency, power, PF, energy, harmonics;
  • Efficiency of PV module, inverter, PV system calculation.

Electrical installations:

  • Insulation resistance;
  • Continuity of PE conductors;
  • Line impedance;
  • Loop impedance (sub-functions with high current and without RCD tripping);
  • RCD testing (type AC, A and B);
  • Earth resistance;
  • AC current (load and leakage);
  • TRMS voltage, frequency, phase sequence;
  • Power, energy, harmonics.

Product Features

Photovoltaic installations:

  • Calculation of STC values;
  • Efficiency calculations;
  • Graphical representation of module’s I – U curve;
  • 2 voltage & 2 current channels for simultaneous AC & DC parameters measurements;
  • Optional PV Remote Unit for simultaneous measurements of solar irradiation and temperature of PV module.

Electrical installations:

  • Automated RCD testing procedure;
  • Support for B type RCD;
  • Earth resistance measurement;
  • Built-in fuse tables for automatic evaluation of the line / loop impedance results;
  • Online monitoring of all 3 voltages;
  • Scope function;
  • Loop impedance test without tripping the RCD;
  • 1-phase power and energy measurements (including harmonics up to 11th).

Technical Details

PHOTOVOLTAIC INSTALLATION MEASUREMENTS

Function Measuring range Basic accuracy
Voltage 0 VDC … 999 VDC

0 VAC … 999 VAC

I-V m.: 0 VDC … 999 VDC

±(1 % of reading + 2 digits)

±(1.5 % of reading + 3 digits)

±(1 % of reading + 2 digits)

Current Panel m.: 0.0 mA … 300 ADC

Invert. m.: 0.0 mA … 300 AAC

I-V m.: 0.00 A … 15 ADC

±(1 % of reading + 2 digits)

±(1.5 % of reading + 3 digits)

±(1 % of reading + 2 digits)

Power Panel m.: 0 … 999 kW

I-V m.: 0 … 14.99 kW

±(2.5 % of reading + 6 digits)

±(2 % of reading + 3 digits)

U / I curve

1000 V / 15 A / 15 kW

Irradiation 000 … 1.75 kW/m2 ±(4 % of reading + 5 digits)
Temperature -10.0 °C … + 85.0 °C ± 5 digits

ELECTRICAL INSTALLATION MEASUREMENTS

Function Measuring range Basic accuracy
Insulation resistance (EN 61557-2) U = 50, 100, 250 VDC:

R: up to 199.9 MΩ

U = 500 VDC, 1 kVDC:

R: up to 999 MΩ

±(5 % of reading + 3 digits)

±(5 % of reading + 3 digits)

Continuity, 200 mA (EN 61557-4) 0.00 Ω … 1999 Ω ±(3 % of reading + 3 digits)
Continuity, 7 mA 0.0 Ω … 1999 Ω ±(5 % of reading + 3 digits)
Loop impedance (EN 61557-3) 0.00 Ω … 9.99 kΩ ±(5 % of reading + 5 digits)
Line impedance (EN 61557-3) 0.00 Ω … 9.99 kΩ ±(5 % of reading + 5 digits)
Voltage 0 VAC … 550 VAC ±(2 % of reading + 2 digits)
Frequency 0.00 Hz … 499.9 Hz ±(0.2 % of reading + 1 digits)
Phase sequence (EN 61557-7) 1.2.3 or 3.2.1
RCD testing (EN 61557-6)

I∆N: 10 mA, 30 mA, 100 mA, 300 mA, 500 mA, 1 A

Contact voltage UC 0.0 V … 99.9 V (-0 % / +15 %) of reading
Trip-out time 0 ms … 40 ms ±1 ms
Trip-out current 0.2 x I∆N … 2.2 x I∆N ±0.1 x I∆N
Earth resistance (EN 61557-5) 0.00 Ω … 9999 Ω ±(5 % of reading + 5 digits)
Energy

0.000 Wh – 1999 kWh

Harmonics

up to 11th

General Main unit Remote unit
Display 128 x 64 dots matrix display with backlight 128 x 64 dots matrix display with backlight
Power supply 6 x 1.2 V NiMH batteries, type AA 6 x 1.2 V NiMH batteries, type AA
Overvoltage category

CAT II / 1000 VDC; CAT III / 600 V; CAT IV / 300 V

Protection class

double insulation

COM port RS232 and USB RS232
Dimensions 230 x 103 x 115 mm 140 x 230 x 80 mm
Weight 1.3 kg 1.0 kg

Accessories

MI 3108 Standard set MI 3108 Pro set
  • Instrument MI 3108 EurotestPV
  • Soft carrying bag, 2 pcs
  • Schuko-plug test cable
  • Test lead, 3 x 1.5 m
  • Test probe, 4 pcs (red, green, blue, black)
  • Crocodile clip, 4 pcs (red, green, blue, black)
  • Fastening clamp, 2 pcs
  • PV Safety Probe
  • PV MC3/4 male/female adapters
  • AC/DC current clamp
  • PV reference cell + cable adapter
  • Temperature probe + cable adapter
  • Power supply adapter + 6 NiMH batteries, type AA
  • USB and RS232 – PS/2 cable
  • PC SW EuroLink PRO
  • Set of carrying straps
  • Short instruction manual
  • Instruction manual and handbook on CD
  • Calibration certificate
  • Instrument MI 3108 EurotestPV
  • EurotestPV Remote + cable adapter
  • Tip commander
  • Soft carrying bag, 2 pcs
  • Schuko-plug test cable
  • Test lead, 3 x 1.5 m
  • Test probe, 4 pcs (red, green, blue, black)
  • Crocodile clip, 4 pcs (red, green, blue, black)
  • Fastening clamp, 2 pcs
  • PV Safety Probe
  • PV MC3/4 male/female adapters
  • AC/DC current clamp
  • PV reference cell + cable adapter
  • Temperature probe + cable adapter
  • Power supply adapter + 12 NiMH batteries, type AA
  • USB and RS232 – PS/2 cable
  • PC SW EuroLink PRO Plus
  • Set of carrying straps, 2 pcs
  • Short instruction manuals
  • Instruction manual and handbook on CD
  • Calibration certificates