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It makes no difference if you bump into the »Sunny display« placed in a dark cellar or slightly knock against the front cover on purpose. Touching this new inverter device will light up the display in any case so that one can check the parameters of the PV system. After two minutes the display will automatically switch off to save energy.
The »Sunny display« is made by Germany’s leading PV inverter manufacturer, SMA. »The target group are those customers who do not own a computer or the Sunny Boy Control but want to have the opportunity to check system data,« says SMA product developer Wolfgang Reichenbächer. Kassel-based SMA motivation for developing the Sunny display came from a test result published in September 1999. The testing of ten different inverters was conducted by the German Stiftung Warentest (Foundation for Product Testing); while the SMA inverters in total ranked first and second, they were judged to be just lower to medium ranked in the handling criteria. The Sunny display itself is just a cover made of special steel, differing from the standard Sunny Boy lids only through the double space display. Every five seconds another system value is displayed, starting with the current incoming AC power and voltage, followed by the total energy production and inverter operation time, and the daily produced power and the operation status (MPP). Then the cycle begins again. In case of technical interference the status shows the interference cause for 15 seconds. The response to knocking is based on an acoustic sensor below the lid, which transmits the signal to a CPU that switches on the display light. Since Sunny Boy inverters all meet the weather-resistance approval according to IP65, the company developed the knocking mechanism, explains Reichenbächer. »Moreover, it is smart: everybody else has switches.« The Sunny Display can either be bought separately for DM 350 ($175 USD) to subsequently update Sunny Boy inverters since the 1996 models or directly in combination with a new Sunny Boy. Rosendahl
Industrievertretungen Michael
Schmela
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