Geokon GeoNet 8900 Series Instruction Manual page 35

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).
REPLACE THE BATTERIES AS FOLLOWS:
1. Place the network in deployment mode by pressing the status button on the
mesh supervisor. Within six minutes the green LED will begin flashing every
10 seconds.
2. Open the node by unscrewing the four captive screws on the front of the
enclosure. Make sure that no dirt, water or other contaminants are allowed
to enter the enclosure.
3. Set the battery select switch to the OFF (middle) position.
4. Remove the existing batteries, if installed.
5. Install the batteries by aligning the positive (+) side of the D cells with the
(+) indicator in the battery holder. Push the batteries straight down into the
holder.
6. Move the battery select switch to either the Alkaline or Lithium position
depending on the type of battery being used. An LED will flash on the right
side of the box indicating the unit has power. Once the node reconnects to
the network, the green LED will blink every 10 seconds in unison with the
LED on the mesh supervisor.
Note: If replacing the batteries in a mesh supervisor and power is restored
promptly, the Supervisor will remain active. If power is not restored
promptly the network time will be lost and must be reset using the Agent
software. The nodes within the network will reconnect automatically.
MODEL 8900 SERIES GEONET WIRELESS DATA HOSTING SYSTEM | MAINTENANCE | 23