Matthew Posted September 24, 2012 Report Share Posted September 24, 2012 Is there any change in the power consumption of the Symphonie 3 logger relative to the previous Symphonies? I have a new install, powered by a GSM iPack on a battery, which is discharging about twice as fast as I expected based on previous installs with the same size battery. If there is a higher power consumption, then I'll need to recalculate my battery size. If not, then I probably have a bad battery. I've previously calculated with 60 mA-hr / day for the 12V-2V DC-DC converter and 12.5 mA-hr / day for the daily GSM call, plus a safety factor of 2 in determining battery size. Link to comment Share on other sites More sharing options...
David Carlson Posted September 25, 2012 Report Share Posted September 25, 2012 There is a slight change in power consumption between the SP3 and older Symphonie loggers, but it would not cause a noticeable change in battery life where an iPack is installed. The older Symphonie loggers draw upwards of 600 uA (that's micro-amps!) with a full suite of sensors attached. SP3 loggers draw upwards of 1000 uA with a full suite of sensors. Note that this does not include excitation for sensors requiring an iPack (BP, RH, digital anemometers,...). Link to comment Share on other sites More sharing options...
Matthew Posted September 26, 2012 Author Report Share Posted September 26, 2012 Ok. Thank you. Sounds like it's a battery issue. Link to comment Share on other sites More sharing options...
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