6
Operation of the PVPM
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6.2 General Hints
The PVPM, as nearly all electronic measuring device, can only operate in a defined temperature range (see
appendix). That is why the PVPM should not be exposed to direct sunlight over a longer period of time. Keep
the device in a shady place or protect it from direct sunlight using a sunshade.
The standard version of the PVPM cannot be integrated into other devices or e.g. brackets. It is very important
that the air can move free around the case so that a proper cooling is guaranteed! Only if the PVPM is
completely out of operation (even no charging) it may be stacked.
Attention: Never loosen a measurement cable connection during a measurement! The considerable
dc tensions and currents can cause a light arc which may cause fire, serious injuries and even
death! (see chapter 5)
The front panel of the PVPM is rather rough, but you should handle it with care anyway. To avoid damage of the
front panel please take notice of the following hints:
Do not touch the front panel with a sharp or pointed object. This could force scratches and might even
destroy the foil especially in the regions with switches in the back.
Clean the surface with a soft and damp tissue. Do not use materials that can scratch, especially on the
cover of the display. A scratched display cover will dramatically affect the display quality.
The case is not water proofed. Do not expose the PVPM directly to influence of water, rain or similar.
For a good measuring quality the sun irradiance during the measurement should be above 500 W/m2.
Measurements are possible below this irradiance value, but less precise and meaningful.
6.3 Connecting Peripheral Devices
Operation manual for PVPM devices
PV-Engineering GmbH
