PV-ISOTEST | Commissioning and Maintenance


Multifunction device for checking electric safety and performance of a photovoltaic system

Multifunction instrument for electrical safety testing and troubleshooting of photovoltaic systems up to 1,500V DC.

- Insulation measurement up to 1,500V DC even on live systems

- Localization of the faulty module through the new GFL function

- Continuity of the protective conductor with 200mA

PV-ISOTEST represents a real innovation in the panorama of PV verification and testing instrumentation. PV-ISOTEST measures the insulation resistance of a single module, a string or even an entire photovoltaic field up to 1,500 V DC according to IEC/EN62446 standard. Traditional insulation meters would require a DC-rated switch-box to short-circuit the positive and negative terminals of the module/string/PV field under test. With PV-ISOTEST the use of any external device is not required, PV-ISOTEST carries out the measurements in full autonomy and self-sufficiency. In addition, through the new GFL (Ground Fault Locator) function, PV-ISOTEST indicates the position of any poor insulation on a string of the photovoltaic system, due, for example, to water or humidity leakage.

Measurement category CAT III 1500V DC / CAT III 1000V AC
AC TRMS voltage measurement 3 ÷ 1000V
DC voltage measurement 3 ÷ 1500V
Insulation resistance 250, 500, 1000, 1500V
GFL function to locate the fault position in the string  
Measurement of polarization index P.I.  
Dielectric absorption ratio D.A.R  
Continuity of protective conductors with 200mA  
Size (LxWxH) (mm) 235 x 165 x 75mm
Weight 1.2kg
  • IEC/EN61010-031
  • IEC/EN61010-1
  • IEC/EN61010-2-030
  • IEC/EN61010-2-033
  • IEC/EN61010-2-034
  • IEC/EN61326-1
  • IEC/EN61557-2
  • IEC/EN61557-4
  • IEC/EN62446-1