Campbell-scientific RAWS-P Remote Automated Weather Station Manual de usuario descargar pdf (Pagina 13)

RAWS-P Remote Automated Weather Station

19 Clockgood True or False: True after GPS fix and CR1000 clock has been set to match

TX320 clock

20 TimeToXmit Seconds until transmit time. Indicates CR1000 and TX320 are properly setup

and running

21 SWR Standing Wave Ratio (SWR), only after a transmission. Indicates condition of

antenna and cable. SWR should be less than 2.0

22 FwdPower Forward power in dBm, should be about 37

23 RefPower Reflected power in dBm, should be about 25 or less

24 RC_Data Only valid after first transmission. Anything other than zero is a problem

25 Setup_RC Indicates if CR1000 could setup TX320. Zero is success or has not run

3. Station Siting and Orientation

3.1 General Description

Selecting an appropriate site for the RAWS is critical in order to obtain

accurate meteorological data. In general, the site should be representative of

the general area of interest and away from the influence of obstructions such as

buildings and trees.

See Section 8, References, for siting references.

NOTE

If any part of the weather station comes in contact with

power lines, you could be killed. Contact local utilities

for the location of buried utility lines before digging or

driving ground rods.

WARNING

3.2 Air Temperature and Relative Humidity

A temperature and relative humidity (RH) sensor should be located over an

open level area at least 9 m in diameter (EPA). The surface should be covered

by short grass, or where grass does not grow, the natural earth surface. The

sensor must be housed inside a radiation shield and adequately ventilated.

Situations to avoid include:

• large industrial heat sources

• rooftops

• steep slopes

• sheltered hollow

• high vegetation

• shaded areas

• swamps

• areas where snow drifts occur

• low places holding standing water after rains

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Campbell-scientific RAWS-P Remote Automated Weather Station Manual de usuario Pagina 13