NRG USER MANUAL
SymphoniePLUS3 User Guide
SymphoniePLUS3_DataLogger_Manual
Rev. 17
[email protected] | Page 19
31 December 2018
Clock battery
A CR 2032 lithium battery powers the logger clock even if D-cell batteries are not present. This allows
the logger to retain date and time in the event of a reboot. Clock batteries will last many years under
normal use.
Clock battery warning LED
This LED illuminates if the clock battery has been installed backwards.
Reset Button
The SymphoniePLUS3 has a reset button in the event that a nearby lightning strike or ESD event causes
the internal electronics to lock up. It is located between the battery box and the clock battery.
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Should it become necessary to reset the SymphoniePLUS3 logger, place the provided sensor
screwdriver to the upper left of the “Channel 4” SCM slot and press.
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Resetting the unit will cause up to 10 minutes of data to be lost (depending on how long since data
was last written to memory) and will start a new data file.
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Any time the reset button is pressed, the logger will begin a new data file.
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SymphoniePLUS3 loggers with attached iPacks will initiate an automatic call (“cold boot call”) 10
minutes after the logger is powered up. If no antenna is attached or the call can’t be completed, no
attempt will be made to call again until the next scheduled call or a “Call Now” is initiated by the
user.
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All configuration settings and previously-collected data will be retained.
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The reset button can also be used during field installation to manually start a new data file if the
user wishes to bookend an event, such as a site commissioning.
Note that a reset can be also be initiated by the built-in watchdog in response to an ESD (electrostatic
discharge) event.
When an iPack is connected to a logger with no D-cells, this will also initiate a reset. The iPack provides
auxiliary power to the logger and therefore powers it up in the absence of D-cell batteries.
SD Card Slot
The SD memory card installs into this slot with the beveled front corner down.
To help minimize the risk of card failure and data loss, it’s recommended that a 128MB NRG-formatted
SD card be used in the PLUS3 logger.
Do not use the SD card for any other device besides the data logger. Improper formatting and/or data
loss may result.
