Replacing Batteries - Geokon 8800-2-1A Instruction Manual

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6.3 Replacing Batteries

Batteries should be replaced when the measured voltage of the D cells drops below 2.0 VDC or
11 volt for an external 12-volt battery. Units will cease operation at ~2.0 volts. When this occurs,
a new set of batteries must be installed before the unit becomes operational again. (Refer to
Section 2.5 for battery installation instructions.) In order for a Node to resume normal operation
after replacing the batteries, it needs to synchronize with the network and acquire the network
time.
All data is retained in nonvolatile flash memory. Data will not be lost even if the batteries are
removed for an extended period (e.g., years).
Lithium batteries are required for use with Multiplexers. A Multiplexer adds seven channels to a
Node; therefore, it takes more power to transmit the data to the Supervisor. A Node with a
Multiplexer transmits four times as much data as a single channel Node.