User`s guide

Chapter 2 __________________________________________________________ Product Overview
VAISALA_______________________________________________________________________ 19
The logger is equipped with CF card slot for logging a large amount of
data. The data is logged into the daily files making it easy to locate any
particular data set for further analysis. Currently there are cards
available from 32 MB up to hundreds of MB. These cards can be read
directly in the PC. Several different types of readers are commercially
available: internal PCMCIA reader as well as external readers to be
connected to USB or parallel port of a PC. Vaisala recommends the
usage of industrial grade CF cards from Sandisk, that have been tested
to function in harsh environments.
0105-004
Figure 5 Compact Flash Memory Card Readers
Optional modules include, for example, various communication
modules, and built-in pressure transducer.
MAWS is a low-power system. The logger consumes less than 10 mA
from a 6 V battery (5 mA from a 12 V battery). MAWS can be powered
using a solar panel or optionally using a 110/230 AC power supply.
Also external DC supply (8 to 14 VDC recommended, 30 VDC max)
can be used as the main power source for MAWS.
The power consumption of the complete MAWS system depends on the
connected sensors, communication devices, and other options included
in the delivery. For example, MAWS with basic set of 5 sensors, each
having 10-minute measuring interval has an average power
consumption of 10 mA / 6 VDC (5 mA / 12 VDC).