Casella-cel Nomad portable weather station Manual de usuario descargar pdf (Pagina 41)

6. THE NOMAD SYSTEM COMPONENTS

A complete system can consist of the following basic components.

Sensors Mounted in an array on the Sensor Head,

plus one inside the Environmental Case,

and the remainder deployed nearby,

see this chapter.

Tripod Supports the Sensor Head and Environmental

Case,

see Chapter 2.

Data Logger Sensus unit inside the Environmental Case

stores data continuously when switched on

with sufficient voltage level,

see Chapter 7.

Communication facilities Two-way via a direct cable during visits by a

technician for downloading,

Two-way via a permanent direct cable to a

nearby PC,

Two-way via a GSM modem link to a PC,

Two-way via a high power radio modem link

to a PC when power is supplied to the Nomad

by a landline,

Data download only via passive low power or

high power radio modem links to a PC,

Data download during visits by a technician

by replacement of a CompactFlash Card,

see Chapter 8.

Power supply Lead acid battery inside the Environmental

Case, with level maintained from a solar

panel attached to the case,

Battery charger,

Other supplies may be arranged,

see Chapter 9.

PC Portable for downloading visits to the Nomad,

or situated remotely with communication

facilities as described above.

6.1 The Sensors Used with Nomad Systems

The Standard Nomad Portable Weather System is equipped with sensors to

measure the following parameters.

Air temperature

Relative humidity

Wind speed

Wind direction

Solar radiation

Barometric pressure

Rainfall (separate tipping bucket unit).

The Nomad Portable Wind System is equipped to measure:

Wind speed

Wind direction

Barometric pressure.

Standard Sensors

Note 8: Air temperature and relative humidity are measured by a combined sensor.

Page 41 of 68

NOMAD Portable Weather Station

Users Handbook

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