INSTRUCTION MANUAL TE525 Tipping Bucket Rain Gage Revision: 11/14 C o p y r i g h t © 1 9 9 0 - 2 0 1 4 C a m p b e l l S c i e n t i f i c , I n c .
Limited Warranty The TE525, TE525WS, and TE525MM are warranted for thirty-six (36) months subject to this 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.
Assistance Products may not be returned without prior authorization. The following contact information is for US and international 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 determine which Campbell Scientific company serves your country. To obtain a Returned Materials Authorization (RMA), contact CAMPBELL SCIENTIFIC, INC., phone (435) 227-9000.
Precautions DANGER — MANY HAZARDS ARE ASSOCIATED WITH INSTALLING, USING, MAINTAINING, AND WORKING ON OR AROUND TRIPODS, TOWERS, AND ANY ATTACHMENTS TO TRIPODS AND TOWERS SUCH AS SENSORS, CROSSARMS, ENCLOSURES, ANTENNAS, ETC. FAILURE TO PROPERLY AND COMPLETELY ASSEMBLE, INSTALL, OPERATE, USE, AND MAINTAIN TRIPODS, TOWERS, AND ATTACHMENTS, AND FAILURE TO HEED WARNINGS, INCREASES THE RISK OF DEATH, ACCIDENT, SERIOUS INJURY, PROPERTY DAMAGE, AND PRODUCT FAILURE.
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. Cautionary Statements ............................................... 1 3. Initial Inspection ......................................................... 1 3.1 Ships With............................................................................................
Table of Contents B. Example Programs.................................................. B-1 B.1 B.2 B.3 CR1000 Pulse Channel Example Program ...................................... B-1 CR200(X) Series Example Program ............................................... B-2 CR1000 Control Port Example Program ......................................... B-3 C. Changing Funnels with a Different Size ................ C-1 C.1 C.2 TE525 and TE525MM ....................................................................
TE525 Tipping Bucket Rain Gage 1. Introduction The TE525 Tipping Bucket Rain Gage is an adaptation of the standard National Weather Service tipping bucket rain gage. It outputs a switch closure for each bucket tip. Three models are available: • • • 2. 3. TE525 TE525WS TE525MM 6 in. orifice 8 in. orifice 24.5 cm orifice 0.01 in. tip 0.01 in. tip 0.1 mm tip Cautionary Statements • READ AND UNDERSTAND the Precautions section at the front of this manual.
TE525 Tipping Bucket Rain Gage 4. Quickstart Short Cut is an easy way to program your datalogger to measure the 107 probe and assign datalogger wiring terminals. Use the following procedure to get started. 2 1. Install Short Cut by clicking on the install file icon. Get the install file from either www.campbellsci.com, the ResourceDVD, or find it in installations of LoggerNet, PC200W, PC400, or RTDAQ software. 2. The Short Cut installation should place a shortcut icon on the desktop of your computer.
TE525 Tipping Bucket Rain Gage 4. Select Datalogger Model and Scan Interval (default of 5 seconds is OK for most applications). Click Next. 5. Under the Available Sensors and Devices list, select the Sensors | Meteorological | Precipitation folder. Select TE525/TE525WS Rain Gauge or TE525MM/TE525M Rain Gauge, depending on which model you have. Click to move the selection to the Selected device window. Data defaults to millimeters. This can be changed by clicking the mm box and selecting inch.
TE525 Tipping Bucket Rain Gage 5. 6. After selecting the sensor, click at the left of the screen on Wiring Diagram to see how the sensor is to be wired to the datalogger. The wiring diagram can be printed out now or after more sensors are added. 7. Select any other sensors you have, then finish the remaining Short Cut steps to complete the program. The remaining steps are outlined in Short Cut Help, which is accessed by clicking on Help | Contents | Programming Steps. 8.
TE525 Tipping Bucket Rain Gage 5.1 Wind Screen Campbell Scientific offers the 260-953 Wind Screen to help minimize the effect of wind on rain measurements. This wind screen consists of 32 freely hanging leaves that swing as wind moves past them. Refer to the 260-953 manual for siting information and the installation procedure. 5.2 Snowfall Adapter Campbell Scientific’s CS705 Snowfall Conversion Adapter uses antifreeze to melt snow, allowing the TE525WS to measure the water content of snow.
TE525 Tipping Bucket Rain Gage TABLE 6-1. Specification Comparisons TE525 TE525WS TE525MM 4.73 ml (0.16 fl. oz) 8.24 ml (0.28 fl. oz) 4.73 ml (0.16 fl. oz) Rainfall per Tip 0.01 in (0.254 mm) 0.01 in (0.254 mm) 0.1 mm (0.004 in) Resolution 1 tip 1 tip 1 tip Accuracy ±1 % up to 1 in/hr +0, –3 % from 1 to 2 in/hr +0, –5 % from 2 to 3 in/hr ±1 % up to 1 in/hr +0, –2.5 % from 1 to 2 in/hr +0, –3.
TE525 Tipping Bucket Rain Gage 7.2 Datalogger Programming Short Cut is the best source for up-to-date datalogger programming code. Programming code is needed when: • • Creating a program for a new datalogger installation Adding sensors to an existing datalogger program If your data acquisition requirements are simple, you can probably create and maintain a datalogger program exclusively with Short Cut.
TE525 Tipping Bucket Rain Gage 7.4 • The mounting pipe must be vertical. Use a torpedo level to stand it as vertical as possible. • Take the funnel off of the top of the bucket and look inside toward the bottom of the bucket — notice the bubble level. Center the bubble level while mounting the bucket to the pipe. Replace the funnel and seat it completely when the installation is complete. Mounting The TE525 includes hose clamps to mount the gage to a 1- to 2-inch pipe.
TE525 Tipping Bucket Rain Gage NOTE Before final leveling, press either end of the bucket down against its stop to make sure the bucket is NOT hung up in the center. FIGURE 7-2. TE525 Tipping Bucket Rain Gage FIGURE 7-3. CM270 Rain Gage Mount attaches to the base of a TE525-series rain gage to give added stability.
TE525 Tipping Bucket Rain Gage 8. Operation 8.1 Sensor Schematic FIGURE 8-1. TE525-series Rain Gage Schematic 8.2 Measurement Campbell Scientific dataloggers measure TE525 rain gages by counting switch closures and converting the total to rainfall. The PulseCount() instruction employs dedicated pulse count accumulators, which continuously monitor the input signal, even when the datalogger is between program scans.
TE525 Tipping Bucket Rain Gage 9.2 Maintenance The funnel and bucket mechanism must be kept clean. Routinely check for and remove any foreign material, dust, insects, etc. 9.3 Calibration A field calibration check is advised every 12 months. Field Calibration Check: 1. Secure a metal can that will hold at least one quart of water. 2. Punch a very small hole in the bottom of the can. 3. Place the can in the top funnel of the rain gage and pour 16 fluid ounces (1 pint) of water into the can.
TE525 Tipping Bucket Rain Gage 12
Appendix A. Importing Short Cut Code 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. A.1 Importing Short Cut Code into a Program Editor Short Cut creates files that can be imported into CRBasic Editor program editor. These files normally reside in the C:\campbellsci\SCWin folder and have the following extensions: • • • • • • • • .
Appendix A. Importing Short Cut Code A-2 5. The program can now be edited, saved, and sent to the datalogger. 6. Import wiring information to the program by opening the associated .DEF file. Copy and paste the section beginning with heading “-Wiring for CRXXX–” into the CRBasic program, usually at the head of the file. After pasting, edit the information such that a ' character (single quotation mark) begins each line.
Appendix B. Example Programs The following example programs use a pulse channel to read the output from the rain gage. The CR1000 example will also work with the CR800, CR850, CR3000, and CR5000. CR9000(X) programming is similar to the CR1000 except for having an additional parameter in the PulseCount() instruction to specify the pulse module’s slot. B.
Appendix B. Example Programs B.
Appendix B. Example Programs B.
Appendix B.
Appendix C. Changing Funnels with a Different Size C.1 TE525 and TE525MM The TE525 and TE525MM rain gages use the same tipping mechanism that is calibrated to tip with the same amount of water. Changing the funnel does not necessitate changing the tipping mechanism, but it does require changing the multiplier in the datalogger program to match the funnel size. See TABLE 7-2, Multipliers for Rain Measurement, for the correct multiplier. C.
Appendix C.
Campbell Scientific Companies Campbell Scientific, Inc. (CSI) 815 West 1800 North Logan, Utah 84321 UNITED STATES www.campbellsci.com • info@campbellsci.com Campbell Scientific Centro Caribe S.A. (CSCC) 300 N Cementerio, Edificio Breller Santo Domingo, Heredia 40305 COSTA RICA www.campbellsci.cc • info@campbellsci.cc Campbell Scientific Africa Pty. Ltd. (CSAf) PO Box 2450 Somerset West 7129 SOUTH AFRICA www.csafrica.co.za • cleroux@csafrica.co.za Campbell Scientific Ltd.
