Common abilities

These are characteristics of all PVPM devices

own patented calculation methods allow a quick evaluation of peak power and internal series resistance (from one single IV-curve measurement)
integrated PC and TFT touch display makes them operational without additional computers (no extra costs), but as well with them (USB connection)
operation by internal rechargeable battery (lasting 8 hours) AND grid powered as well, for continuous measurements (long term studies)
the devices work with a capacitive load. Advances: the IV-curve measurement is fast (for exaple 50ms for one module) as well as smooth: the method avoides voltage or current jumps and makes it suitable even for thin film or high capacity modules
we use irradiance references which are constructed similar to a module (solar glass, EVA, cell). That is why their optical and spectral behaviour is very near to the module under test, the base for best results
if required for the specific measurement problems (the irradiance sensor must have the same behaviour as the module under test): we offer diverse calibrated irradiance reference sensors, with different cell technologies and different accuracy, coming from different manufacturers
the wired connection of the sensors (true real time data) prevents accuracy problems due to time shift or not sufficient data density (irradiance varies significantly within milliseconds in reality). Cable extensions are provided.
long test leads (standard 10m) in four-wire connection give maximum flexibility while maintaining high accuracy: the leads may be replaced by shorter or longer ones without the requirement of changes at the instrument
free software: the customer may download and evaluate the standard PC software free of charge:
Download here!

IV-Curve Tracers, Field Testers and Accessories

Precision measurement devices for the check of PV plants and modules, since more than 20 years!

PVPM1540X

Our latest developed field tester and IV-curve tracer for photovoltaic modules, strings or arrays up to 1500V and 40Adc

PVPM1500X

Productive field tester and IV-curve tracer for photovoltaic modules, strings or arrays up to 1500V and 20Adc

PVPM2540C

Peak power and I-V-curve measurement device for photovoltaic modules und strings up to 250V and 40Adc

PVPM1040X

Established peak power and I-V-curve measurement device for photovoltaik modules und strings up to 1000V and 40Adc

PVPM1040C

Established peak power and I-V-curve measurement device for photovoltaik modules und strings up to 1000V and 40Adc

Accessories

Accessory and spare parts for the PVPM devices
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Irradiance Reference Sensors, calib.

If required several other commercially available irradiance reference sensors may be attached to the PVPM. These sensors are available in several cell technologies (for example mono-, polycrystalline, amorphous).
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