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Basic Weather Station

BWS-200

(including ETo Variant)

Issued: 2

8

.1.1

4

Copyright © 2006-2013 Campbell Scientific Ltd.

CSL 383

INSTALL

ATION

M
ANUAL

1
2
3
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Summary of Contents for BWS-200

Page 1: ...Basic Weather Station BWS 200 including ETo Variant Issued 28 1 14 Copyright 2006 2013 Campbell Scientific Ltd CSL 383 INSTALLATION MANUAL...

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Page 3: ...the repair is under guarantee or not Please state the faults as clearly as possible and if the product is out of the guarantee period it should be accompanied by a purchase order Quotations for repair...

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Page 5: ...t for recycling Any batteries contained within the product or used during the products life should be removed from the product and also be sent to an appropriate recycling facility Campbell Scientific...

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Page 7: ...re 8 4 2 2 Installing the Standard Sensors 9 4 3 Optional Sensor Connections 10 4 3 1 Installing the Optional Raingauge 10 4 3 2 Installing the Optional Radiation Sensor 10 4 3 3 Installing the Option...

Page 8: ...1 Cable Entries 19 11 1 2 Desiccant 19 11 2 Regular Inspection 19 11 2 1 General 19 11 2 2 Sensors 20 11 2 3 Power Supply 21 12 And Finally 21 Appendix A Basic Weather Station Program A 1 A 1 Standar...

Page 9: ...or Values Screen showing measured values 17 7 Data Collection Screen 18 B 1 Magnetic Declination at 2012 5 degrees relative to true north positive is east B 2 B 2 Declination Angles East of True North...

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Page 11: ...ount in any appropriate location A simple low cost mast designed to be mounted into a concrete filled hole is available as an optional extra The manual also includes introductory information about set...

Page 12: ...as many factors as possible that may adversely affect your data The objective of any data collection exercise is to obtain data that is accurate reliable and representative Accuracy and reliability d...

Page 13: ...t surface The line of discontinuity is known as the leading edge As air passes over the leading edge its characteristics gradually adjust to the new surface This internal boundary layer varies in vert...

Page 14: ...ffects of an Urban Environment The impervious nature of an urban surface compared to surrounding rural areas together with the efficient channelling of water as surface run off leads to a generally dr...

Page 15: ...tallation The Basic Weather Station components can be fitted to any suitable mounting bearing in mind the effects of the environmental conditions as described in Section 1 of this manual Campbell Scie...

Page 16: ...600mm deep see Figure 2 3 Fit the anti spin bar into the hole towards the lower end of the mast and secure in place with the two nuts supplied 4 Set the SPM2 Mast into the centre of the hole and temp...

Page 17: ...er battery etc 300 square 600 500 Ground Level 2 metres overall height To top of mast Anti Spin Bar Dimensions in mm unless otherwise stated Not to Scale Concrete Foundations Junction Box 220 approx 2...

Page 18: ...n Figure 3 below Adjust the position of the enclosure to achieve the best exposure of the solar panel When installing in latitudes greater than 30 degrees from the equator point the solar panel toward...

Page 19: ...main gland body Re tighten the gland nut Wind Sentry Wind Speed and Direction Sensors Figure 4 Wind Sentry Mounting The 03002 5 Wind Sentry is provided with a mounting bracket which fits directly to a...

Page 20: ...box carefully noting the wire colours connection position and wire up the replacement cable using the old cable as a template Never connect an additional piece of cable to existing cable as this may...

Page 21: ...ll Scientific 4 4 Installing Grounding and Lightning Protection Your weather station must be properly grounded by taking a ground wire from the brass grounding lug in the lower face of the enclosure t...

Page 22: ...ampbell Scientific if you require assistance in selecting an appropriate interface 5 1 Communication Directly to the PC For computer weather station distances of up to 15 metres the simplest method is...

Page 23: ...nd alternative logger and so must be specified before ordering or will require your unit to be returned for upgrade Note that all of the above options will require additional software either in the lo...

Page 24: ...atalogger will then turn on c After connecting power to the datalogger leave it for at least one minute to complete its self power up tests 8 Establish Active Communications Your Basic Weather Station...

Page 25: ...Extra Response Time 00 Seconds CLICK NEXT Setup Summary CLICK NEXT Communication Test Check Yes CLICK NEXT If communication is unsuccessful then a ensure power is switched on see section 7 b use stan...

Page 26: ...then press Set Now to implement the change 10 Running the Datalogger Program and Viewing Measurements Now that you have established communications and set the datalogger clock you will probably be an...

Page 27: ...the variables along with their real time current values should appear in the main screen of PC200W 8 You can observe them changing every 10 seconds as the sensor outputs change A typical screen shot...

Page 28: ...inal Storage area can hold a considerable amount of data in memory When it becomes full the earliest data is overwritten in a continuous cycle The Basic Weather Station will store approximately three...

Page 29: ...dry but which will turn pink as moisture is absorbed When the desiccant fully changes colour it should be replaced Used desiccant packs may be re used if dried by placing in an oven at 120 C for 16 ho...

Page 30: ...or and its radiation shield Check the optional rain gauge funnel for debris and ensure the gauge is level and operating correctly Six Monthly Clean the CS215 sensor Clean the radiation shield Yearly T...

Page 31: ...l action Please note that a weather station performing well in the height of summer may not be able to sustain its charge during the middle of winter Whilst the Solar panel is sufficient for most oper...

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Page 33: ...tions for the optional ARG100 Raingauge CS100 Barometric Pressure Sensor and CS300 If those sensors are not fitted then the values should be disregarded The CS300 is required for ETo calculations The...

Page 34: ...cted for valid reading Must have CS100 Setra Barometric pressure Sensor connected for valid reading Public Variables Variable Name Typical Value Explanation The program measures the following raw sign...

Page 35: ...of maxima and minima Table2 is recorded every 24 hrs at midnight Derived Data Recorded in Table2 Variable Name Explanation Batt_Volt_MIN Minimum Battery Voltage Volts AirTC_MAX Maximum Air temperature...

Page 36: ...which the sensors have been added is as follows CS215 03002 5 CSL ARG100 CSL CS300 CS100 A 6 Calculating ETo To calculate Evapotransporation The Penman Monteith calculation method is used ETo is calcu...

Page 37: ...tive and are subtracted from 0 degrees to get True North as shown Figure B 2 Declination angles west of True North are considered positive and are added to 0 degrees to get True North as shown in Figu...

Page 38: ...Weather Station BWS 200 B 2 Figure B 1 Magnetic Declination at 2012 5 degrees relative to true north positive is east Figure B 2 Declination Angles East of True North Are Subtracted From 0 to Get True...

Page 39: ...Appendix B Wind Direction Sensor Orientation B 3 Figure B 3 Declination Angles West of True North Are Added to 0 to Get True North...

Page 40: ...Basic Weather Station BWS 200 B 4...

Page 41: ...f the comment above about amending the wind run calculation C 2 No Response from the Datalogger Do the following steps 1 Make sure that the main power supply battery has been installed and connected p...

Page 42: ...rrect datalogger channel as shown in the sensor wiring table See Appendix A of this manual 4 If you have modified the original datalogger program in any way ensure that the correct range code paramete...

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Page 44: ...rta T5M 1W7 CANADA www campbellsci ca dataloggers campbellsci ca Campbell Scientific Centro Caribe S A CSCC 300N Cementerio Edificio Breller Santo Domingo Heredia 40305 COSTA RICA www campbellsci cc i...

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