Xylem Global Access Radio Modem Software - Manual (Page 5)

Global Water
800-876-1172
• globalw.com
- 5 -
The data loggers are designed to be powered down most of the time and in this
state, will run for a very long time on fairly small battery supplies. The logger will
draw about 5-7mA while it is actively recording sensor data or communicating with a
computer, including during radio communication. When the Global Access software
is in a “connected” state with the server radio, all the client radios in the network will
hold the logger which they are connected to in an active or powered up state.
Therefore, leaving the software running for long periods of time can drain the
logger’s batteries and cause data to be missed.
In a system where the loss of data is not acceptable, it is advised that the radio
modem and the logger be powered from separate supplies. This way; should the
radio loose power, the logger will continue to record data for later retrieval. If access
to the logger is only occasionally required, a smaller capacity is needed than if
regular monitoring is being performed. This can significantly reduce the storage
capacity and cost of the power supply for certain applications, while maintaining
continuous data recording.
IV. Running the Software
To install the Global Access radio modem software, insert the
CDROM into the host computer and run the Setup file in the Global
Access folder. A desktop icon will be installed on the desktop
automatically. Double click on this icon to run the software.
The connection screen appears first with
Three options, Connect, Change Settings
and Cancel. Connect will cause the
software to connect up to the server and
power up all the loggers in the client
network. Cancel will exit to the main
screen in the software without connecting
to the server. Change Settings is used to
select a pre-defined address book, change
COM port settings and enable the auto-
disconnect mode.