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RAWS-P Remote Automated Weather Station 

3.6  Barometric Pressure  

The barometric pressure sensor is mounted to the back plate inside the RAWS 
environmental enclosure.

  

3.7  Fuel Moisture and Fuel Temperature  

The fuel moisture and fuel temperature sensor should be left outside at the field 
site continually exposed to the same conditions as forest fuels.  The fuel 
moisture and fuel temperature dowel rods absorb and desorb moisture from its 
surroundings.  Install the probes horizontally on the mounting stake and face 
the sensors south (northern hemisphere) above a representative forest floor duff 
layer.  Place the sensor away from foot traffic areas. 

4.  Sensor Wiring and Troubleshooting 

4.1  Air Temperature and Relative Humidity 

4.1.1  General Description, Air Temperature and Relative Humidity (part 

#HMP45C-LQ) 

The Vaisala Air Temperature and Relative Humidity Sensor (part #HMP45C-
LQ)

 

contains a Platinum Resistance Temperature detector (PRT) probe and a 

Vaisala HUMICAP® 180 capacitive relative humidity probe.  The probe 
output for each sensor is a voltage.  

4.1.2  Wiring, Air Temperature and Relative Humidity (part #HMP45C-LQ) 

The temp/RH sensor is connected to the RAWS connector panel “TEMP/RH” 
connector COLOR CODED ORANGE.  This sensor is internally wired from 
the RAWS connector panel to the CR1000 datalogger.   

Connector Panel “TEMP/RH” connector COLOR CODED ORANGE 

Connector Pin A  Temp Hi 

to CR1000  1L 

Connector Pin B  Sensor excitation 

to CR1000  EX1 

Connector Pin C  Sensor signal Lo/AG  to CR1000  AG 
Connector Pin D  Power ground 

to CR1000  Ground 

Connector Pin E  RH signal 

to CR1000  1H 

Connector Pin F  SW_12V 

to CR1000  SW_12V 

4.1.3  Troubleshooting, Air Temperature and Relative Humidity (part 

#HMP45C-LQ) 

Check the sensor cable.  Disconnect the connector and look for damaged pins.  
Verify that the sensor body is connected to the sensor head.  Under the filter 
assembly, verify the sensors are connected but not touching.  Try connecting a 
substitute sensor.  Obtain a Return Material Authorization (RMA) number 
before returning this sensor to Campbell Scientific for repair. 

Consult the HMP45C-L manual for more information. 

NOTE 

Summary of Contents for RAWS-P

Page 1: ...RAWS P Remote Automated Weather Station Revision 6 10 C o p y r i g h t 2 0 0 6 2 0 1 0 C a m p b e l l S c i e n t i f i c I n c...

Page 2: ...national customers residing in countries served by Campbell Scientific Inc directly Affiliate companies handle repairs for customers within their territories Please visit www campbellsci com to determ...

Page 3: ...emperature and Relative Humidity part HMP45C LQ 6 4 1 3 Troubleshooting Air Temperature and Relative Humidity part HMP45C LQ 6 4 2 Rain Gage 7 4 2 1 General Description Rain Gage part TE525 LQ 7 4 2 2...

Page 4: ...ttery 14 5 3 1 General Description Battery 14 5 3 2 Wiring Battery 14 5 3 3 Troubleshooting Battery 14 5 4 GOES Transmitter 14 5 4 1 General Description GOES Transmitter part TX312 14 5 4 2 Wiring GOE...

Page 5: ...4 1 GOES Transmitter 15 5 5 1 Voice Radio Interface 17 5 6 1 CR1000 Keyboard Display 18 5 7 1 CR1000 and Printed Circuit Wiring Panel 19 5 7 2 Printed Circuit Board Wiring Panel Connector ID 19 9 3 1...

Page 6: ...RAWS P Table of Contents iv...

Page 7: ...nal 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...

Page 8: ...g and orientation section before field deployment If a problem is encountered review the equipment wiring and troubleshooting sections in this manual NOTE After siting and leveling the RAWS station op...

Page 9: ...software LoggerNet or PC400 purchased from Campbell Scientific Inc Please contact a Campbell Scientific Application Engineer for programming assistance Campbell Scientific company contact information...

Page 10: ...rain fall in inches 8 WS_mph Wind Speed in MPH 9 WindDir Wind Direction 10 WSDiag Only for Wind Sonic data zero otherwise 11 MaxWS MaxWS reset 2 minutes before transmit 12 MaxWD Direction of wind dur...

Page 11: ...dequately 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...

Page 12: ...a HUMICAP 180 capacitive relative humidity probe The probe output for each sensor is a voltage 4 1 2 Wiring Air Temperature and Relative Humidity part HMP45C LQ The temp RH sensor is connected to the...

Page 13: ...cting a substitute sensor Obtain a Return Material Authorization RMA number before returning this sensor to Campbell Scientific for repair Consult the TE525 L manual for more information NOTE 4 3 Sola...

Page 14: ...switch The reed switch opens and closes at a rate proportional to wind speed The wind direction is sensed by a vane The vane drives a 10 K Ohm potentiometer The wind speed sensor outputs a pulse The w...

Page 15: ...d Connector Pin D Open to CR1000 4 4 2 3 Troubleshooting 2 D WindSonic part WindSonic LQ Check the sensor cable Disconnect the connector and look for damaged pins Try connecting a substitute sensor Sh...

Page 16: ...stitute sensor NOTE Obtain a Return Material Authorization RMA number before returning this sensor to Campbell Scientific for repair Consult the CS100 manual for more information NOTE 4 6 Fuel Moistur...

Page 17: ...n average power requirements It is also recommended for use at higher elevations and latitudes The solar panel should be mounted facing south if located in the northern hemisphere or facing north in t...

Page 18: ...r cable The magnitude of the voltage output depends on the incident solar radiation Check the sensor cable Disconnect the connector and look for damaged pins Try connecting a substitute panel Obtain a...

Page 19: ...ry must be attached for the CH100 to function correctly as a power supply CAUTION It is possible to leave two batteries connected The battery connections are diode isolated however if one of the batte...

Page 20: ...ps with the RAWS Reversal of battery polarity will damage the CH100 or battery WARNING It is possible to leave two batteries connected The battery connections are diode isolated however if one of the...

Page 21: ...er part TX312 and antenna siting go to our website at www campbellsci com enter the TX312 in the Search box on the website mentioned above and go the equipment manual The GOES transmitter part TX312 m...

Page 22: ...the transmitter If problems persist try a substitute Obtain a Return Material Authorization RMA number before returning this equipment to Campbell Scientific for repair Consult the TX312 manual for m...

Page 23: ...DIO RJ45 Connector to UHF VHF Radio Note Maxon and Bendix King Radio cables are available from Campbell Scientific 5 5 3 Troubleshooting Voice Radio Interface part VSP3 If a problem with the voice rad...

Page 24: ...sregard the DCP Setup parameters NOTE FIGURE 5 6 1 CR1000 Keyboard Display 5 6 2 Wiring CR1000 Keyboard Display part CR1000KD The CR1000 Keyboard Display part CR1000KD connects to the CR1000 PC board...

Page 25: ...1000 shown in Figure 5 7 1 provides sensor measurement timekeeping data reduction data program storage and control functions The RAWS CR1000 datalogger includes 2 Mbytes of memory for data and program...

Page 26: ...00 manual for more information NOTE 6 Desiccant 6 1 When to Replace Desiccant A humidity indicator card and desiccant packs are provided with the weather station Place the humidity indicator card and...

Page 27: ...35 753 2342 for a RMA number before returning sensor or equipment for service NOTE 8 Items that Ship with RAWS Station The RAWS ships with the following items 1 ea RAWS P manual 1ea CR1000 manual 1 ea...

Page 28: ...on Automated Weather Stations vol 9 No 4 EPA 1989 Quality Assurance Handbook for Air Pollution Measurement Systems EPA Office of Research and Development Research Triangle Park North Carolina 27711 9...

Page 29: ...the resulting arithmetic operation is addition For example the declination for Longmont CO is 10 1 thus True North is 360 10 1 or 349 9 as read on a compass Likewise the declination for Mc Henry IL is...

Page 30: ...gative is Subtracted from 0 360 degrees to Find True North 9 3 2 USGS Web Calculator The USGS provides an easy way of determining declination of a specific site Since magnetic declination fluctuates w...

Page 31: ...alculator In the example above the declination for Logan UT is 12 24 or 12 4 As shown in Figure 9 3 4 the declination for Utah is East positive so True North for this site is 360 12 4 347 6 degrees Th...

Page 32: ...RAWS P Remote Automated Weather Station 26...

Page 33: ......

Page 34: ...p CSC 11564 149th Street NW Edmonton Alberta T5M 1W7 CANADA www campbellsci ca dataloggers campbellsci ca Campbell Scientific Centro Caribe S A CSCC 300 N Cementerio Edificio Breller Santo Domingo Her...

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