Campbell RAWS-H Remote Instruction Manual

RAWS-H Remote

Automated Weather Station

Revision: 4/12

Copyright © 2006-2012

Campbell Scientific, Inc.

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RAWS-H Table of Contents

PDF viewers: These page numbers refer to the printed version of this document. Use the
PDF reader bookmarks tab for links to specific sections.

1. Introduction.................................................................. 1

2. Getting Started.............................................................3

3. Station Siting and Orientation .................................... 3

3.1 General Description..................................................................................3

3.2 Air Temperature and Relative Humidity ..................................................3

3.3 Precipitation..............................................................................................3

3.4 Solar Radiation .........................................................................................3

3.5 Wind Speed and Direction........................................................................4

3.6 Barometric Pressure..................................................................................4

3.7 Fuel Moisture and Fuel Temperature........................................................4

4. Sensor Wiring ..............................................................4

4.1 Air Temperature and Relative Humidity ..................................................4

4.2 Rain Gage .................................................................................................4

4.3 Solar Radiation .........................................................................................5

4.4 Wind Speed and Direction........................................................................5

4.4.1 SDI-12 Sensor.................................................................................5

4.5 Fuel Moisture and Fuel Temperature........................................................5

4.6 Barometric Pressure..................................................................................6

5. Equipment Wiring and Troubleshooting ...................6

5.1 Solar Panels ..............................................................................................6

5.1.1 General Description, Solar Panel....................................................6

5.1.2 Wiring, Solar Panel.........................................................................6

5.1.3 Troubleshooting, Solar Panel..........................................................7

5.2 Charger/Regulator ....................................................................................7

5.2.1 General Description, 12 V Charger/Regulator (part #CH100) .......7

5.2.2 Wiring, 12 V Charger/Regulator (part #CH100) ............................7

5.2.3 Troubleshooting, 12 V Charger/Regulator (part #CH100) .............8

5.3 Battery ......................................................................................................8

5.3.1 General Description, Battery...........................................................8

5.3.2 Wiring, Battery ...............................................................................8

5.3.3 Troubleshooting, Battery ................................................................9

5.4 GOES Transmitter ....................................................................................9

5.4.1 General Description, GOES Transmitter (part #TX320) ................9

5.4.2 Wiring, GOES Transmitter (part #TX320)...................................10

5.4.3 Troubleshooting, GOES Transmitter (part #TX320)....................10

5.5 Voice Radio Interface.............................................................................11

5.5.1 General Description, Voice Radio Interface (part #VSP3)...........11

5.5.2 Wiring, Voice Radio Interface (part #VSP3)................................11

5.5.3 Troubleshooting, Voice Radio Interface (part #VSP3).................12

i

RAWS-H Table of Contents

6. Desiccant ....................................................................14

7. Sensor and Equipment Maintenance .......................14

8. References..................................................................15

5.6 CR1000 Keyboard/Display.................................................................... 12

5.6.1 General Description, CR1000 Keyboard/Display (part

#CR1000KD) ...................................................................................... 12

5.6.2 Wiring, CR1000 Keyboard/Display (part #CR1000KD)............. 13

5.6.3 Troubleshooting, CR1000 Keyboard/Display (part

#CR1000KD) ...................................................................................... 13

5.7 CR1000 Datalogger ............................................................................... 13

5.7.1 General Description, CR1000 Datalogger.................................... 13

5.7.2 Wiring, CR1000 Datalogger ........................................................ 14

5.7.3 Troubleshooting, CR1000 Datalogger ......................................... 14

6.1 When to Replace Desiccant ................................................................... 14

6.2 Reusing Desiccant.................................................................................. 14

7.1 Sensor and Equipment Maintenance...................................................... 14

8.1 RAWS Orientation................................................................................. 15

8.1.1 Determining True North and Sensor Orientation......................... 15

8.1.2 USGS Web Calculator ................................................................. 18

Appendix

A. Equipment Wiring and Connector Panel

Jumper Location................................................. A-1

Figures

1-1. Color coded, keyed connector panel....................................................... 1

1-2. Inside Environmental Enclosure (optional equipment shown)............... 2

5.2-1. 12 volt charger/regulator ..................................................................... 7

5.4-1. GOES Transmitter ............................................................................. 10

5.5-1. Voice Radio Interface........................................................................ 11

5.6-1. CR1000 Keyboard/Display................................................................ 12

5.7-1. CR1000 and printed circuit wiring panel........................................... 13

8.1-1. Magnetic declination for the contiguous United States ..................... 16

8.1-2. A declination angle East of True North (positive) is subtracted

from 360 (0) degrees to find True North .................................................. 17

8.1-3. A declination angle West of True North (negative) is subtracted

from 0 (360) degrees to find True North .................................................. 17

8.1-4. USGS Web Calculator....................................................................... 18

A-1. RAWS-H equipment wiring ..............................................................A-1

A-2. RAWS-H connector panel schematic 1 of 2...................................... A-2

A-3. RAWS-H connector panel schematic 2 of 2...................................... A-3

A-4. RAWS-H connector panel jumper location ....................................... A-4

ii

RAWS-H Remote Automated Weather
Station

1. Introduction

The RAWS environmental enclosure can be used for configuring a custom
Remote Automated Weather Station (RAWS) that matches the requirements of
your application. The aluminum environmental enclosure houses a 12 V
rechargeable battery and a CR1000 datalogger. The outside of the enclosure
has color-coded, keyed connectors (Figure 1-1) for attaching the sensors.
Besides the connectors, a wiring panel is included that allows the measurement
of additional sensors. Communication options include satellite transmitter and
voice radio interface module. Additional communication equipment
(telephone, cellular phone, radio) can be added to the station. The RAWS data
collection platform is ideal for configuring a custom remote automated weather
station.

NOTE

FIGURE 1-1. Color coded, keyed connector panel

Keep this manual and the CR1000KD Keyboard Display
with the RAWS. Review the station siting and orientation

section before field deployment. If a problem is encountered,
review the troubleshooting sections in this manual and Appendix
A Equipment Wiring and Connector Panel Jumper Location.

1

RAWS-H Remote Automated Weather Station

(1)
Connect
battery

SC12
Cable

CR1000KD
packed in foam
(may go here)

Battery

TX320
GOES
Transmitter

VSP3
Vosponder

(2)
Turn on
CH100

CR1000
power in

NOTE

RF Radio

CS100
Barometer

CR1000
Datalogger

CR1000 Wiring Panel

FIGURE 1-2. Inside Environmental Enclosure (optional equipment

shown)

Customized Handar sensor programming can be developed for a
nominal fee. Program development will require datalogger
support software (LoggerNet or PC400) purchased from
Campbell Scientific, Inc.

2

2. Getting Started

RAWS-H Remote Automated Weather Station

NOTE

NOTE

NOTE

Set up and test your station before field deployment.

Keep this manual and the CR1000KD Keyboard Display
with the RAWS. Review the station siting and orientation

section before field deployment. If a problem is encountered,
review the equipment wiring and troubleshooting sections in this
manual.

After siting and leveling the RAWS station, open the enclosure and
(1) connect the battery cable and (2) verify the CH100 switch is in
the ‘on’ position. When this equipment is not in use (i.e.,

transport or storage), disconnect battery cable to the CH100.

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.

WARNING

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.

3.2 Air Temperature and Relative Humidity

A temperature and relative humidity 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: 1) large industrial heat sources, 2) rooftops, 3)
steep slopes, 4) sheltered hollow, 5) high vegetation, 6) shaded areas,

7) swamps, 8) areas where snow drifts occur, and 9) low places holding
standing water after rains.

3.3 Precipitation

A rain gauge should be located over an open level area covered by short grass,
or where grass does not grow, the natural earth surface. Level the rain gage.

3.4 Solar Radiation

A solar radiation sensor should be located to avoid shadows on the sensor at
any time. Orient the solar radiation sensor where the solar radiation sensor

3