Vaisala HydroMet™ Systems MAWS301 were used in automating
the whole hydrological network of the Swedish Hydrological and
Meteorological Institute. Ninety MAWS301 systems were installed
throughout Sweden. These systems measure water level using an
absolute shaft encoder. In addition, the systems have inputs for weighing
precipitation gauge, air and water temperature sensors, as well as other
optional analog sensors. For telemetry, GSM cellular modems and PSTN
modems are being used, some with spoken voice messages.
Adaptable data outputs
e data output formats of the Vaisala
HydroMet
TM
Systems can be freely and
easily set up by the user to suit specific
requirements and several ready-made
templates are provided to ease the job.
Logged data can be reported both in
scan and channel ordered formats. Data
transmissions can be self-timed, polled
and/or based on user set alarms. Any
measured and/or calculated parameter
can have its alarms thresholds set by
the user. Multiparameter alarms can be
constructed using a flexible arithmetic
module. In addition to sending
messages, the alarm module can be set
up to log data, set an excitation voltage
or digital outputs to control external
devices, or dynamically change timer
intervals to control things such as
reporting or measurement intervals.
e ease of setting up multiple serial
channels and telemetry options allows
the same equipment to serve more than
one purpose or application.
Extensive calculations
Standard statistical calculations include
minimum, maximum, average, standard
deviation and cumulative values
calculated over user-defined intervals.
All extreme values have time stamping
options. In addition, an extensive library
of calculations is available including
unit conversions, dew point, frost point,
QNH, QFF, QFE, evapotranspiration,
sunshine duration, forest fire index,
wind chill, heat stress and many
others. Standard arithmetic operations
are available to further extend user
configurability.
Versatile data logging
Data logging is easy with Vaisala
HydroMet
TM
Systems: 1.6 MB of secure
flash memory is available for
logging measured and calculated
data, complete reports as well as to
construct reports. Removable compact
flash memory card provides an
additional 200+ MB of memory further
enhancing the logging capability.
Data can be logged permanently or
semipermanently for periods defined
by the user. All logging parameters and
schedules are user configurable for
maximum flexibility.
Power supply options
e systems have low power
consumption. e basic MAWS100
system can be operated from a 6 Watt
panel while typically only a 12 Watt
solar panel is used for powering a
MAWS110 or MAWS301. A 24 Watt
solar panel as well as a mains (AC)
power supply are optional to power
extended systems with telemetry
devices. Available back-up batteries
range from the 5 Ah up to 52 Ah in the
MAWS301.
Expand ability
e systems architecture enables
systems to be easily upgraded with new
sensors, calculations, output formats,
and logging schedules at any time to
accommodate the user's changing
requirements. e MAWS110 and
MAWS301 are expandable with the
Vaisala Absolute Shaft Encoder QSE104
requires no backup battery to retain its
position data
Vaisala All Weather Precipitation
Gauge VRG101
Photo courtesy of SMHI, Sweden.
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comments to this Manuals