Related Manuals for Campbell TB4
Summary of Contents for Campbell TB4
- Page 1 TB4 and TB4MM Rain Gages Revision: 4/16 C o p y r i g h t © 1 9 9 5 - 2 0 1 6 C a m p b e l l S c i e n t i f i c ,...
- Page 3 Limited Warranty “Products manufactured by CSI are warranted by CSI to be free from defects in materials and workmanship under normal use and service for twelve months from the date of shipment unless otherwise specified in the corresponding product manual. (Product manuals are available for review online at www.campbellsci.com.) Products not manufactured by CSI, but that are resold by CSI, are warranted only to the limits extended by the original manufacturer.
- Page 4 SCIENTIFIC, INC., phone (435) 227-9000. After an application engineer determines the nature of the problem, an RMA number will be issued. Please write this number clearly on the outside of the shipping container. Campbell Scientific’s shipping address is: CAMPBELL SCIENTIFIC, INC.
- Page 5 • Periodically (at least yearly) check electrical ground connections. WHILE EVERY ATTEMPT IS MADE TO EMBODY THE HIGHEST DEGREE OF SAFETY IN ALL CAMPBELL SCIENTIFIC PRODUCTS, THE CUSTOMER ASSUMES ALL RISK FROM ANY INJURY RESULTING FROM IMPROPER INSTALLATION, USE, OR MAINTENANCE OF TRIPODS, TOWERS, OR ATTACHMENTS TO TRIPODS AND TOWERS SUCH AS SENSORS, CROSSARMS, ENCLOSURES, ANTENNAS, ETC.
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Page 7: Table Of Contents
8. Troubleshooting and Maintenance ......9 Troubleshooting ................... 9 Maintenance ..................10 8.2.1 Dismantling for Cleaning ............10 8.2.2 Reassembling the TB4 ..............13 Calibration..................13 8.3.1 Factory Calibration ..............14 Appendices A. Importing Short Cut Code Into CRBasic Editor ... A-1 B. - Page 8 Rain Gage Installation (pole embedded in concrete) ......7 7-3. Pedestal Base Options ................. 8 7-4. CM240 Mounting Bracket ..............8 7-5. Main Components of the TB4 ............. 9 8-1. Components of TB4 Base ..............10 8-2. Dismantling the Filter/Siphon Assembly .......... 11 8-3.
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Page 9: Introduction
Introduction The TB4 and TB4MM tipping bucket rain gages funnel rain into a mechanism that tips when filled to the calibrated level. The TB4 measures in 0.01 in. increments and the TB4MM measures in 0.2 mm increments. After measurement, the water drains through two orifices in the base, allowing the measured water to be collected in a separate container. -
Page 10: Quickstart
TB4 and TB4MM Tipping Bucket Rain Gages QuickStart Short Cut is an easy way to program your datalogger to measure the tipping bucket rain gage and assign datalogger wiring terminals. Short Cut is available as a download on www.campbellsci.com and the ResourceDVD. It is included in installations of LoggerNet, PC200W, PC400, or RTDAQ. - Page 11 The default rainfall per tip value of 0.01 inches should be used if the sensor is a TB4 purchased at Campbell Scientific (U.S. office). Select 0.2 mm if the sensor is a TB4MM purchased at Campbell Scientific (U.S.
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Page 12: Overview
The siphon reduces typical rain bucket errors and produces accurate measurements for up to 50 cm per hour. The 260-953 Alter-Type Wind Screen can be used with the TB4 and TB4MM to minimize the effects of strong winds. Siting information and the installation... -
Page 13: Installation
The 260-953 Alter-Type Wind Screen’s siting information and installation procedure are provided in our 260-953 manual. Wiring Connections to Campbell Scientific dataloggers are given in TABLE 7-1. TABLE 7-1. Wire Color, Wire Function, Datalogger Connection Datalogger Connection Datalogger Connection Wire... -
Page 14: Datalogger Programming
Edlog dataloggers are provided at www.campbellsci.com\old- manuals. 7.2.1 PulseCount Instruction The TB4 uses a reed switch for measuring precipitation. The PulseCount() instruction programs CRBasic dataloggers to measure the reed switch. PulseCount(Dest,Reps,PChan,PConfig,POption,Mult,Offset) • Choose Switch Closure (code 2) for the PConfig parameter. -
Page 15: Siting
2- to 4-times the height of the obstruction. Mounting The TB4 have three equally-spaced pads for mounting the tipping buckets on a flat surface. Each pad includes a hole that fits a 3/8 inch (M8) bolt. The three holes form a 234 mm (9.21 in) diameter bolt circle. -
Page 16: Leveling
TB4 and TB4MM Tipping Bucket Rain Gages FIGURE 7-3. Pedestal Base Options Leveling After mounting the rain gage, use the following procedure to level it. Remove the housing assembly from the base by loosening the three housing screws and lifting the housing upward. -
Page 17: Troubleshooting And Maintenance
TB4 and TB4MM Tipping Bucket Rain Gages Remove the rubber shipping band and cardboard packing securing the tipping bucket assembly. Tip the bucket several times to ensure the tipping mechanism is moving freely. Replace the housing assembly and tighten the three screws to secure the housing to the base. -
Page 18: Maintenance
Housing locking screws; lightly lubricate after cleaning (see FIGURE 8-1) • All insect screens To access the above components, dismantle the TB4 using the following procedure: Remove the housing assembly from the base by loosening the three locking screws and lifting the housing upward. -
Page 19: Dismantling The Filter/Siphon Assembly
TB4 and TB4MM Tipping Bucket Rain Gages Separate the filter/siphon assembly from the funnel by pushing the filter while pulling the siphon (see FIGURE 8-2). CAUTION Do not twist the filter/siphon assembly while pushing and pulling. To dismantle the filter and siphon assembly, push filter and pull siphon at the same time. -
Page 20: Filter/Siphon Assembly
TB4 and TB4MM Tipping Bucket Rain Gages Disassemble the filter/siphon assembly by doing the following (FIGURE 8-3): (a) Unscrew nut (b) Lightly press stem down on surface until stem pops out of siphon body (c) Remove stem from siphon body... -
Page 21: Reassembling The Tb4
TB4 and TB4MM Tipping Bucket Rain Gages 8.2.2 Reassembling the TB4 Screw cap on stem, finger tighten only (FIGURE 8-3). Push stem into siphon body (FIGURE 8-3). Replace nut and tighten (FIGURE 8-3). CAUTION Do not over tighten. Push filter/siphon assembly back into place (FIGURE 8-4). -
Page 22: Factory Calibration
After the water has passed through the rain gage, the tipping bucket should have tipped 39 times for the TB4 or 50 times for the TB4MM. If the rain gage fails to record the correct number of tips, return the unit to Campbell Scientific for recalibration. -
Page 23: Importing Short Cut Code Into Crbasic Editor
Appendix A. Importing Short Cut Code Into CRBasic Editor This tutorial shows: • How to import a Short Cut program into a program editor for additional refinement • How to import a wiring diagram from Short Cut into the comments of a custom program Short Cut creates files, which can be imported into CRBasic Editor. -
Page 25: Example Programs
'Define Data Tables DataTable(TB4_mm,True,-1) DataInterval(0,60,Min,0) Totalize(1,Rain_mm,IEEE4,0) EndTable 'Main Program BeginProg Scan(1,Sec,1,0) 'TB4 Rain Gage measurement Rain_mm: PulseCount(Rain_mm,1,1,2,0,0.254,0) 'Call Data Tables and Store Data CallTable(TB4_mm) NextScan EndProg B.1.2 CR200(X) Series Pulse Channel Example CRBasic Example B-2. CR200(X) Series Pulse Channel Example... -
Page 26: Control Port Example Programs
Appendix B. Example Programs B.2 Control Port Example Programs The following examples measure a TB4 rain gage using a control port on the datalogger. Wire the sensor as shown in TABLE 7-1, Wire Color, Wire Function, Datalogger Connection (p. 5) B.2.1 CR1000 Control Port Example... - Page 28 Santo Domingo, Heredia 40305 SOUTH AFRICA COSTA RICA • cleroux@csafrica.co.za • info@campbellsci.cc www.campbellsci.co.za www.campbellsci.cc Campbell Scientific Southeast Asia Co., Ltd. Campbell Scientific Ltd. 877/22 Nirvana@Work, Rama 9 Road Campbell Park Suan Luang Subdistrict, Suan Luang District 80 Hathern Road Bangkok 10250...