Campbell TE525 Series Product Manual
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Campbell TE525 Series Product Manual

Tipping bucket rain gage
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Revision: 01/2022
Copyright © 1990 – 2022
Campbell Scientific, Inc.

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Summary of Contents for Campbell TE525 Series

  • Page 1 Revision: 01/2022 Copyright © 1990 – 2022 Campbell Scientific, Inc.

  • Page 2: Table Of Contents

    Table of contents 1. Introduction 2. Precautions 3. Initial inspection 4. QuickStart 5. Overview 5.1 Wind screen 5.2 Snowfall adapter 6. Specifications 7. Installation 7.1 Wiring to data logger 7.2 Data logger programming 7.3 Siting 7.4 Mounting 8. Operation 8.1 Sensor schematic 8.2 Measurement 9.

  • Page 3: Introduction

    1. Introduction The TE525-series tipping bucket rain gages are adaptations of the standard National Weather Service tipping bucket rain gages. They funnel rain into a mechanism that tips when filled to the calibrated level. The TE525 and TE525WS measure in 0.01-inch increments and the TE525MM measures in 0.1-mm increments.

  • Page 4: Initial Inspection

    3. Initial inspection Upon receipt, inspect the packaging and contents for damage. File damage claims with the shipping company. The model number and cable length are printed on a label at the connection end of the cable. Check this information against the shipping documents to ensure the correct product and cable length are received.
  • Page 5 3. In the Available Sensors and Devices box, type TE525 or locate the sensor in the Sensors > Meteorological > Precipitation folder. Double click TE525/TE525WS Rain Gauge or TE525MM/TE525M Rain Gauge, depending on which model you have. Data defaults to millimeters.
  • Page 6 6. In Output Setup, enter the scan rate, Data Output Storage Intervals, and meaningful table names. 7. Select the measurement and its associated output options. 8. Click Finish and save the program. Send the program to the data logger if the data logger is connected to the computer.

  • Page 7: Overview

    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.

  • Page 8: Specifications

    6. Specifications Sensor type: Tipping bucket/potted magnetic momentary-contact reed switch Operating temperature range: 0 to 50 °C Storage temperature range: –40 to 70 °C Switch ratings: 30 VDC at 2 A 115 VAC at 1 A Closure time: 135 ms Bounce settling time: 0.75 ms Resolution:...

  • Page 9: Installation

    Table 6-1: Specification comparisons TE525 TE525WS TE525MM 4.73 ml 8.24 ml 4.73 ml Volume per tip (0.16 fl. oz) (0.28 fl. oz) (0.16 fl. oz) 0.01 in 0.01 in 0.1 mm Rainfall per tip (0.254 mm) (0.254 mm) (0.004 in) 15.4 cm 20.3 cm 24.5 cm...

  • Page 10: Data Logger Programming

    7.2 Data logger programming Short Cut is the best source for up-to-date programming code for Campbell Scientific data loggers. If your data acquisition requirements are simple, you can probably create and maintain a data logger program exclusively with Short Cut. If your data acquisition needs are more complex, the files that Short Cut creates are a great source for programming code to start a new program or add to an existing custom program.

  • Page 11: Mounting

    Place the rain gage away from objects that obstruct the wind. The distance should be two to four times the height of the obstruction. 7.4 Mounting The TE525 includes hose clamps to mount the gage to a 1-inch to 2-inch IPS vertical pole. For additional stability and better leveling capabilities, the CM270 leveling base can be used instead (FIGURE 7-1 (p.
  • Page 12 The pole or pipe can be attached to a concrete foundation using J-bolts or self supporting legs (7.4 (p. 9)) or placed directly into a concrete foundation (FIGURE 7-3 (p. 11)). A concrete pad is recommended, but it should not be installed over a large paved or concrete surface. FIGURE 7-2.
  • Page 13 FIGURE 7-3. TE525 Tipping Bucket Rain Gage Mount the gage with its lip at least 5 cm (2 in) above the post or pole (FIGURE 7-3 (p. 11)). The mounting pole must be vertical. Use a torpedo level to get the pole as vertical as possible. The rain gage has a bubble level to ensure it is level.

  • Page 14: Operation

    8. Operation 8.1 Sensor schematic Campbell Scientific installs a 100 Ω resistor, connected in series, at the switch to prevent arcing by limiting current (FIGURE 8-1 (p. 12)). FIGURE 8-1. TE525-series rain gage schematic 8.2 Measurement Campbell Scientific data loggers measure TE525 rain gages by counting switch closures and PulseCount() converting the total to rainfall.

  • Page 15: Troubleshooting

    9.1 Troubleshooting Symptom: No Precipitation PulseCount() 1. Check that the sensor is wired to the pulse terminal specified by the instruction. 2. Verify that the Configuration Code (switch closure) and Multiplier parameters for PulseCount() instruction are correct. 3. Disconnect the sensor from the data logger and use an ohmmeter to do a continuity check of the switch.
  • Page 16 One half turn of both screws causes a 2% to 3% change. 6. Check and re-level the rain gage. Factory calibration: If factory calibration is required, contact Campbell Scientific to obtain an RMA (see Assistance back of manual). TE525-Series Tipping Bucket Rain Gage...

  • Page 17: Appendix A. Importing Short Cut Code Into Crbasic Editor

    Appendix A. Importing Short Cut code into CRBasic Editor Short Cut creates a .DEF file that contains wiring information and a program file that can be imported into the CRBasic Editor. By default, these files reside in the C:\campbellsci\SCWin folder. Import Short Cut program file and wiring information into CRBasic Editor: 1.

  • Page 18: Appendix B. Example Program

    Appendix B. Example program CRBasic Example 1: CR1000X program measuring the TE525 or TE525WS using a pulse terminal 'Program records precipitation from one TE525 or TE525WS Rain Gage once a 'second and stores the total every 60 minutes 'Wiring Diagram '============== 'TE525 or TE525WS ' Wire...

  • Page 19: Appendix C. Changing Funnels With A Different Size

    The TE525WS rain gage uses a different tipping mechanism that is calibrated differently than the TE525 or TE525MM. The tipping mechanism must be replaced to work with a TE525 or TE525MM funnel. Send the rain bucket into the Campbell Scientific repair department for modifications. Contact Campbell Scientific to obtain an RMA (see Assistance at back of manual).
  • Page 20 See Product Details on the Ordering Information pages at www.campbellsci.com . Other manufacturer's products, that are resold by Campbell Scientific, are warranted only to the limits extended by the original manufacturer. Refer to www.campbellsci.com/terms#warranty for more information.
  • Page 21 To obtain a Returned Materials Authorization or Repair Reference number, contact your CAMPBELL SCIENTIFIC regional office. Please write the issued number clearly on the outside of the shipping container and ship as directed. For all returns, the customer must provide a “Statement of Product Cleanliness and Decontamination”...
  • Page 22 Do not recharge, disassemble, heat above 100 °C (212 °F), solder directly to the cell, incinerate, or expose contents to water. Dispose of spent batteries properly. 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...
  • Page 23 Campbell Scientific Regional Offices Australia France Thailand Location: Garbutt, QLD Australia Location: Vincennes, France Location: Bangkok, Thailand Phone: 61.7.4401.7700 Phone: 0033.0.1.56.45.15.20 Phone: 66.2.719.3399 Email: info@campbellsci.com.au Email: info@campbellsci.fr Email: info@campbellsci.asia Website: www.campbellsci.com.au Website: www.campbellsci.fr Website: www.campbellsci.asia Brazil Germany Location: São Paulo, SP Brazil...

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Te525Te525wsTe525mm

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