DATA LOGGER MANUAL
Manufacturers of low power instruments
page 41
Network Signal Sensor
This is an internal sensor that measures the quality of the 2G/3G network signal. This is a very important
status measurement, because it is directly related to the connectivity of the data logger. We advise to
include this sensor in your configuration, and to monitor this parameter regularly.
Independent data log
The interval on which this sensor is sampled. This sensor is a virtual sensor, in fact the
information is obtained from the internal modem. Because the modem draws a lot of energy, it
is not a good idea to use this sensors along with the other sensors at the same interval. It is
much more economical to use this sensor only at the send interval. Because the modem has to work on
that interval anyway, so you can get this info without losing any
extra energy. The name “independent
data log” is derived from this situation. Set it according to your needs, but preferably use the send interval
as setting.
Signal bars
A comprehensive presentation of the quality of the sensor (the network coverage at you installation site) 0
bars = no reception, it will not work. The system will work from 1 bar and above. Try to setup your
(external?) antenna for optimum reception. 3, or more is a very good reception.
Signal dB/%/indication/bit error rate
A technical presentation of the quality of the signal. These figures are technical and harder to
comprehend. (example: a signal of -34 dB is twice as weak as a signal of -31 dB, dB is a logarithmic
presentation. Also the % presentation is NOT linear.) We advise to use the signal bars.
Network signal sensor
[0] Exit
[1] Name >> Network signal
[2] Independent data log >> On
[3] Sample log interval >> 06:00:00
[4] Signal bars (0-5) >> Network signal
[5] Signal (dB) >> Not used
[6] Signal (%) >> Not used
[7] Signal indication >> Not used
[8] Bit error ratio >> Not used
[R] Remove
[T] Signal test >> Passed
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