Campbell TE525 Instruction Manual

INSTRUCTION MANUAL

TE525 Tipping Bucket

Copyright © 1990- 2015

Campbell Scientific, Inc.

Rain Gage

Revision: 12/15

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.) Products not manufactured by CSI, but that are resold

by CSI, are warranted only to the limits extended by the original manufacturer.
Batteries, fine-wire thermocouples, desiccant, and other consumables have no
warranty. CSI’s obligation under this warranty is limited to repairing or
replacing (at CSI’s option) defective Products, which shall be the sole and
exclusive remedy under this warranty. The Customer assumes all costs of
removing, reinstalling, and shipping defective Products to CSI. CSI will return
such Products by surface carrier prepaid within the continental United States of
America. To all other locations, CSI will return such Products best way CIP
(port of entry) per Incoterms ® 2010. This warranty shall not apply to any
Products which have been subjected to modification, misuse, neglect, improper
service, accidents of nature, or shipping damage. This warranty is in lieu of all
other warranties, expressed or implied. The warranty for installation services
performed by CSI such as programming to customer specifications, electrical
connections to Products manufactured by CSI, and Product specific training, is
part of CSI's product warranty. CSI EXPRESSLY DISCLAIMS AND

EXCLUDES ANY IMPLIED WARRANTIES OF MERCHANTABILITY
OR FITNESS FOR A PARTICULAR PURPOSE. CSI hereby disclaims,
to the fullest extent allowed by applicable law, any and all warranties and
conditions with respect to the Products, whether express, implied or
statutory, other than those expressly provided herein.”

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 [phone]. 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.
RMA#_____
815 West 1800 North
Logan, Utah 84321-1784

For all returns, the customer must fill out a “Statement of Product Cleanliness
and Decontamination” form and comply with the requirements specified in it.
The form is available from our website at www.campbellsci.com/repair. A
completed form must be either emailed to [e-mail] or faxed to
[phone]. Campbell Scientific is unable to process any returns until we
receive this form. If the form is not received within three days of product
receipt or is incomplete, the product will be returned to the customer at the
customer’s expense. Campbell Scientific reserves the right to refuse service on
products that were exposed to contaminants that may cause health or safety
concerns for our employees.

Safety

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. TAKE ALL REASONABLE PRECAUTIONS TO AVOID THESE HAZARDS.
CHECK WITH YOUR ORGANIZATION'S SAFETY COORDINATOR (OR POLICY) FOR PROCEDURES AND REQUIRED PROTECTIVE
EQUIPMENT PRIOR TO PERFORMING ANY WORK.

Use tripods, towers, and attachments to tripods and towers only for purposes for which they are designed. Do not exceed design
limits. Be familiar and comply with all instructions provided in product manuals. Manuals are available at www.campbellsci.com or
by telephoning [phone] (USA). You are responsible for conformance with governing codes and regulations, including safety
regulations, and the integrity and location of structures or land to which towers, tripods, and any attachments are attached. Installation
sites should be evaluated and approved by a qualified engineer. If questions or concerns arise regarding installation, use, or
maintenance of tripods, towers, attachments, or electrical connections, consult with a licensed and qualified engineer or electrician.

General

• Prior to performing site or installation work, obtain required approvals and permits. Comply

with all governing structure-height regulations, such as those of the FAA in the USA.

• Use only qualified personnel for installation, use, and maintenance of tripods and towers, and

any attachments to tripods and towers. The use of licensed and qualified contractors is highly
recommended.

• Read all applicable instructions carefully and understand procedures thoroughly before

beginning work.

• Wear a hardhat and eye protection, and take other appropriate safety precautions while

working on or around tripods and towers.

• Do not climb tripods or towers at any time, and prohibit climbing by other persons. Take

reasonable precautions to secure tripod and tower sites from trespassers.

• Use only manufacturer recommended parts, materials, and tools.

Utility and Electrical

• You can be killed or sustain serious bodily injury if the tripod, tower, or attachments you are

installing, constructing, using, or maintaining, or a tool, stake, or anchor, come in contact with
overhead or underground utility lines.

• Maintain a distance of at least one-and-one-half times structure height, 20 feet, or the distance

required by applicable law, whichever is greater, between overhead utility lines and the
structure (tripod, tower, attachments, or tools).

• Prior to performing site or installation work, inform all utility companies and have all

underground utilities marked.

• Comply with all electrical codes. Electrical equipment and related grounding devices should

be installed by a licensed and qualified electrician.

Elevated Work and Weather

• Exercise extreme caution when performing elevated work.

• Use appropriate equipment and safety practices.

• During installation and maintenance, keep tower and tripod sites clear of un-trained or non-

essential personnel. Take precautions to prevent elevated tools and objects from dropping.

• Do not perform any work in inclement weather, including wind, rain, snow, lightning, etc.

Maintenance

• Periodically (at least yearly) check for wear and damage, including corrosion, stress cracks,

frayed cables, loose cable clamps, cable tightness, etc. and take necessary corrective actions.

• 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.

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. Precautions ................................................................ 1

3. Initial Inspection ......................................................... 1

3.1 Ships With ............................................................................................ 1

4. QuickStart ................................................................... 2

5. Overview ..................................................................... 4

5.1 Wind Screen ......................................................................................... 4

5.2 Snowfall Adapter ................................................................................. 4

6. Specifications ............................................................. 4

7. Installation .................................................................. 6

7.1 Wiring to Datalogger ........................................................................... 6

7.2 Datalogger Programming ..................................................................... 6

7.3 Siting .................................................................................................... 7

7.4 Mounting .............................................................................................. 7

8. Operation .................................................................. 10

8.1 Sensor Schematic ............................................................................... 10

8.2 Measurement ...................................................................................... 10

8.3 Long Cable Lengths ........................................................................... 10

9. Troubleshooting and Maintenance ......................... 10

9.1 Troubleshooting ................................................................................. 10

9.2 Maintenance ....................................................................................... 11

9.3 Calibration.......................................................................................... 11

10. Attributions and References ................................... 11

Appendices

A. Importing Short Cut Code Into CRBasic Editor ... A-1

B. Example Programs ................................................. B-1

B.1 CR1000 Pulse Channel Example Program ....................................... B-1

B.2 CR200(X) Series Example Program ................................................ B-2

B.3 CR1000 Control Port Example Program .......................................... B-3

i

Table of Contents

C. CM270 Installation .................................................. C-1

D. Installation of Texas Electronics Rain Gage

Funnel Band ......................................................... D-1

D.1 Introduction ..................................................................................... D-1

D.2 Installation ....................................................................................... D-1

E. Changing Funnels with a Different Size ............... E-1

E.1 TE525 and TE525MM ..................................................................... E-1

E.2 TE525WS ......................................................................................... E-1

Figures

7-1. Mounting pole base options ................................................................ 8

7-2. TE525 Tipping Bucket Rain Gage ...................................................... 9

7-3. CM270 Rain Gage Mount attaches to the base of a TE525-series

rain gage to give added stability ...................................................... 9

8-1. TE525-series Rain Gage schematic ................................................... 10

C-1. Exploded view of the CM270 Mounting Bracket Kit ..................... C-2

C-2. Two views of an assembled CM270 ............................................... C-2

C-3. Mounting CM270 to the rain gage .................................................. C-3

C-4. CM270 pipe mounting (exploded view) .......................................... C-4

Tables

6-1. Specification Comparisons .................................................................. 5

7-1. Wire Color, Function, and Datalogger Connection ............................. 6

7-2. Multipliers for Rain Measurement ...................................................... 7

CRBasic Examples

B-1. CR1000 Pulse Channel Example Program ...................................... B-1

B-2. CR200(X) Series Example Program ............................................... B-2

B-3. CR1000 Control Port Example Program ......................................... B-3

ii

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:

• TE525 6 in. orifice 0.01 in. tip

• TE525WS 8 in. orifice 0.01 in. tip

• TE525MM 24.5 cm orifice 0.1 mm tip

2. Precautions

• READ AND UNDERSTAND the Safety section at the front of this

manual.

• TE525-series tipping bucket rain gages are precision instruments that must

be handled with care.

• Sensor is factory-calibrated and should not require field calibration. Refer

to Section 9.2, Maintenance
calibration.

• Debris filters, funnel, and bucket reservoirs should be kept clean.

• Santoprene® rubber, which composes the black outer jacket of the TE525

cable, will support combustion in air. It is used because of its resistance to
temperature extremes, moisture, and UV degradation. It is rated as slow
burning when tested according to U.L. 94 H.B. and passes FMVSS302.
However, local fire codes may preclude its use inside buildings.

3. Initial Inspection

• Check the packaging and contents of the shipment. If damage occurred

during transport, immediately file a claim with the carrier. Contact
Campbell Scientific to facilitate repair or replacement.

• Check model information against the shipping documents to ensure the

expected products and the correct lengths of cable are received (see
Section 3.1, Ships With
On cables and cabled items, the model number is usually found at the
connection end of the cable. Report any shortages immediately to
Campbell Scientific.

(p. 11), for field calibration check and factory

(p. 1)). Model numbers are found on each product.

3.1 Ships With

The TE525 ships with:

(1) Calibration sheet
(2) Hose clamps from original manufacturer
(1) ResourceDVD
(3) Screws from original manufacturer

1

TE525 Tipping Bucket Rain Gage

4. QuickStart

Short Cut is an easy way to program your datalogger to measure the TE525 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. Use the following procedure to get

started.

1. Open Short Cut and select New Program.

2. Select Datalogger Model and Scan Interval (default of 5 seconds is OK

for most applications). Click Next.

2

TE525 Tipping Bucket Rain Gage

3. 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.

4. After selecting the sensor, click Wiring Diagram to see how the sensor is

to be wired to the datalogger. The wiring diagram can be printed now or
after more sensors are added.

3

TE525 Tipping Bucket Rain Gage

5. Select any other sensors you have, then finish the remaining Short Cut

6. If LoggerNet, PC400, RTDAQ, or PC200W is running on your PC, and the

7. If the sensor is connected to the datalogger, as shown in the wiring

5. Overview

TE525-series Tipping Bucket Rain Gages funnel precipitation into a bucket
mechanism that tips when filled to a calibrated level. A magnet attached to the
tipping mechanism actuates a switch as the bucket tips. The momentary switch
closure is counted by the pulse-counting circuitry of Campbell Scientific
dataloggers.

The TE525-series Tipping Bucket Rain Gages are manufactured by Texas
Electronics and cabled by Campbell Scientific.

steps to complete the program. The remaining steps are outlined in Short

Cut Help, which is accessed by clicking on Help | Contents |
Programming Steps.

PC-to-datalogger connection is active, you can click Finish in Short Cut
and you will be prompted to send the program just created to the
datalogger.

diagram in step 6, check the output of the sensor in the datalogger support
software data display to make sure it is making reasonable measurements.

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. The
CS705 cannot be used with either the TE525 or TE525MM. However, both the
TE525 and TE525MM can be converted to a TE525WS by returning them to
Campbell Scientific (see Assistance page at the beginning of this document).
Refer to the CS705 manual for siting information and the installation
procedure.

6. Specifications

Features:

• High precision

• Compatible with all Campbell Scientific dataloggers

• TE525WS conforms to the National Weather Service

recommendation for an 8-inch funnel orifice.

• TE525WS is directly compatible with the CS705 Snowfall Adapter,

allowing it to measure the measure the water content of snow.

4

TE525 Tipping Bucket Rain Gage

TABLE 6-1. Specification Comparisons

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

Materials
Bucket: white powder-coated spun aluminum
Funnel Collector: gold anodized spun aluminum
Screen: gold anodized spun aluminum
Locking Snap Ring: stainless steel

Cable: 2-conductor shielded cable

Cable Weight: 0.1 kg (0.2 lb) per 10 ft

TE525 TE525WS TE525MM

Volume per Tip

Rainfall per Tip

Resolution

1

4.73 ml

(0.16 fl. oz)

0.01 in

(0.254 mm)

1 tip 1 tip 1 tip

±1 % up to 1 in/hr

Accuracy

+0, –3 % from 1 to 2 in/hr
+0, –5 % from 2 to 3 in/hr

Funnel Collector

Diameter

2

Height

Tipping Bucket

Weight

1

The volume of water required to cause a tip in the TE525 and the TE525MM is the same. The difference in calibration is

strictly due to funnel size.

2

If the CS705 Snowfall Adapter or other eight-inch funnel is installed on these gages, refer to TABLE 7-2 for the multiplier.
See Appendix E, Changing Funnels with a Different Size (p. E-1), before replacing funnels on any TE525 tipping bucket rain
gage with a different size funnel.

15.4 cm

(6.060 in)

24.1 cm
(9.5 in)

0.9 kg
(2 lb)

+0, –2.5 % from 1 to 2 in/hr
+0, –3.5 % from 2 to 3 in/hr

8.24 ml

(0.28 fl. oz)

0.01 in

(0.254 mm)

±1 % up to 1 in/hr

20.3 cm
(8 in)

26.7 cm

(10.5 in)

1 kg

(2.2 lb)

4.73 ml

(0.16 fl. oz)

0.1 mm

(0.004 in)

±1 % up to 10 mm/hr
+0, –3 % from 10 to 20 mm/hr
+0, –5 % from 20 to 30 mm/hr

24.5 cm
(9.7 in)

29.2 cm

(11.5 in)

1.1 kg

(2.4 lb)

5

TE525 Tipping Bucket Rain Gage

TABLE 7-1. Wire Color, Function, and Datalogger Connection

NOTE

7. Installation

If you are programming your datalogger with Short Cut, skip Section 7.1,
Wiring to Datalogger
Short Cut does this work for you. See Section 4, QuickStart
Cut tutorial.

7.1 Wiring to Datalogger

(p. 6), and Section 7.2, Datalogger Programming (p. 6).

(p. 2), for a Short

Wire

Color

Black

Wire

Function

Pulse

Output

White Ground

Clear Shield

1

Dataloggers capable of measuring pulse counts on their control ports include

CR800-series, CR1000, and CR3000.

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. 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.

Datalogger Connection

Terminal for Pulse

Channel Input

P, P_SW, or U

(pulse channel)

AG or ⏚

(analog ground)

AG or ⏚

(analog ground)

Datalogger Connection

Terminal for Control

Port Input

1

C

(control port)

5 V

(on datalogger)

AG or ⏚

(analog ground)

Short Cut cannot edit programs after they are imported and edited
in CRBasic Editor.

A Short Cut tutorial is available in Section 4, QuickStart (p. 2). If you wish to
import Short Cut code into CRBasic Editor to create or add to a customized
program, follow the procedure in Appendix A, Importing Short Cut Code Into
CRBasic Editor
provided in the following sections. Complete program examples for select
dataloggers can be found in Appendix B, Example Programs

The PulseCount() instruction programs CRBasic dataloggers (CR200(X),
CR6, CR800, CR850, CR1000, CR3000, CR5000, CR9000(X)) to measure the
TE525 rain gage.

PulseCount(Dest,Reps,PChan,PConfig,POption,Mult,Offset)

6

(p. A-1). Programming basics for CRBasic dataloggers are

(p. B-1).

TE525 Tipping Bucket Rain Gage

TABLE 7-2. Multipliers for Rain Measurement

• Choose Switch Closure (code 2) for the PConfig parameter.

• The Multiplier parameter determines the units in which rainfall is

reported (TABLE 7-2).

Rain Gage inches millimeters

7.3 Siting

TE525

TE525WS

TE525MM

TE525 or TE525MM

w/8 in funnel

Mount the rain gage in a relatively level spot representative of the surrounding
area. Ensure that the lip of the funnel is horizontal, at least 30 cm above the
ground, and higher than the average snow depth. The ground surface around
the rain gage should be natural vegetation or gravel, not paved.

Place the rain gage away from objects that obstruct the wind. The distance
should be 2- to 4-times the height of the obstruction.

• 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.

0.01 0.254

0.01 0.254

0.00394 0.1

0.0057 0.1459

7.4 Mounting

The TE525 includes hose clamps to mount the gage to a 1- to 2-inch pipe. As
an alternative for added stability and for better leveling capabilities, the CM270
leveling base could be used instead (FIGURE 7-3). This leveling base is
included with the CM705 Snowfall Adapter but can also be purchased
separately. For more information, see Appendix C, CM270 Installation

CM300-series mounting poles provide a stainless steel 1.5 IPS vertical pole for
mounting the TE525 rain gage. See FIGURE 7-1 for multiple base options.

Model Pole Length

CM300 58 cm (23 in)
CM305 119 cm (47 in)
CM310 142 cm (53 in)

(p. C-1).

7

TE525 Tipping Bucket Rain Gage

NOTE

FIGURE 7-1. Mounting pole base options

Mount the gage with its lip at least 5 cm (2 in) above the post or pole (FIGURE

7-2). Level the rain gage after mounting it.

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.

8

TE525 Tipping Bucket Rain Gage

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

9

TE525 Tipping Bucket Rain Gage

NOTE

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. To create a
pulse, an internal 100 kΩ pull-up resistor pulls the pulse input to 5 Vdc when
the switch is open, and a switch closure to ground pulls the input to 0 Vdc.

8.3 Long Cable Lengths

Long cables have appreciable capacitance between lines. A built-up charge
could cause arcing when the switch closes, shortening switch life. A 100 Ω

resistor is connected in series at the switch to prevent arcing by limiting current
(FIGURE 8-1). Campbell Scientific installs this resistor on all current rain
gages.

9. Troubleshooting and Maintenance

All factory repairs and recalibrations require a returned material
authorization (RMA) and completion of the “Declaration of
Hazardous Material and Decontamination” form. Refer to the

Assistance page at the beginning of this manual for more

information.

9.1 Troubleshooting

Symptom: No Precipitation

1. Check that the sensor is wired to the pulse channel specified by the

PulseCount() instruction.

2. Verify that the Configuration Code (switch closure) and Multiplier

parameters for the PulseCount() instruction are correct for the datalogger
type.

3. Disconnect the sensor from the datalogger and use an ohm meter to do a

10

continuity check of the switch. The resistance measured at the terminal
block on the inside of the bucket between the black and white leads should
vary from infinite (switch open) when the bucket is tipped, to less than an
ohm (switch closed) when the bucket is balanced.

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

4. If it takes less than 45 minutes for this water to run out, the hole in the can

TE525 Tipping Bucket Rain Gage

pint) of water into the can. (A 16 oz soft drink bottle filled to within 2.5
inches of the top may be used for a rough field calibration. An exact
volume will allow for a more precise calibration.)

is too large.

5. The following number of tips should occur:

TE525, TE525MM 100 ± 3
TE525WS 57 ± 2

6. Adjusting screws are located on the bottom adjacent to the large center

drain hole. Adjust both screws the same number of turns. Rotation
clockwise increases the number of tips per 16 oz. of water; counter
clockwise rotation decreases the number of tips per 16 oz. of water. One
half turn of both screws causes a 2% to 3% change.

7. Check and re-level the rain gage lid.

Factory Calibration:

If factory calibration is required, contact Campbell Scientific to obtain an RMA
(see Assistance at front of manual).

10. Attributions and References

Santoprene® is a registered trademark of Exxon Mobile Corporation.

Campbell Scientific. 2012. 260-953 alter-type wind screen for tipping bucket

rain gages: Instruction manual. Campbell Scientific.

https://s.campbellsci.com/documents/us/manuals/260-953.pdf

Campbell Scientific. 2015. CS705 snowfall adapter: Instruction manual.

Campbell Scientific.

https://s.campbellsci.com/documents/us/manuals/cs705.pdf

11

TE525 Tipping Bucket Rain Gage

12

NOTE

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. Assuming
defaults were used when Short Cut was installed, these files reside in the
C:\campbellsci\SCWin folder:

• .DEF (wiring and memory usage information)

• .CR6 (CR6 datalogger code)

• .CR1 (CR1000 datalogger code)

• .CR8 (CR800 datalogger code)

• .CR3 (CR3000 datalogger code)

• .CR2 (CR200(X) datalogger code)

• .CR5 (CR5000 datalogger code)

• .CR9 (CR9000(X) datalogger code)

Use the following procedure to import Short Cut code and wiring diagram into
CRBasic Editor.

1. Create the Short Cut program following the procedure in Section 4,
QuickStart

file name used when saving the Short Cut program.

2. Open CRBasic Editor.

3. Click File | Open. Assuming the default paths were used when Short Cut
was installed, navigate to C:\CampbellSci\SCWin folder. The file of
interest has the .CR6, .CR1, .CR8, .CR3, .CR2, .CR5, or .CR9 extension.
Select the file and click Open.

4. Immediately save the file in a folder different from
C:\Campbellsci\SCWin, or save the file with a different file name.

Once the file is edited with CRBasic Editor, Short Cut can no
longer be used to edit the datalogger program. Change the name
of the program file or move it, or Short Cut may overwrite it next
time it is used.

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 an apostrophe (') begins each line.

(p. 2). Finish the program and exit Short Cut. Make note of the

A-1

Appendix A. Importing Short Cut Code Into CRBasic Editor

This character instructs the datalogger compiler to ignore the line when
compiling.

A-2

CRBasic Example B-1. CR1000 Pulse Channel Example Program

'Program records precipitation from one TE525 or TE525WS Rain Gage once a

EndProg

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.1 CR1000 Pulse Channel Example Program

'second and stores the total every 60 minutes

'Wiring Diagram
'==============
'TE525 or TE525WS

' Wire
' Color Function CR1000
' ----- -------- -----­' Black Pulse Output P1
' White Ground AG*
' Clear Shield AG*

'*AG = Analog Ground (represented by ground symbol on CR1000 wiring panel

'Declare the variables and units for the rain measurement

Public Rain_mm
Units Rain_mm=mm

DataTable(Table1,True,-1)

DataInterval(0,60,Min,0)
Totalize(1,Rain_mm,FP2,0)

EndTable

BeginProg

Scan(1,Sec,1,0)
PulseCount(Rain_mm,1,1,2,0,0.254,0)

'For TE525MM Rain Gage, use multiplier of 0.1 in PulseCount instruction

‘Call Data Table

CallTable(Rain)
NextScan

B-1

Appendix B. Example Programs

CRBasic Example B-2. CR200(X) Series Example Program

'Program records precipitation from one TE525 or TE525WS Rain Gage once a

EndProg

B.2 CR200(X) Series Example Program

'second and stores the total every 60 minutes

'Wiring Diagram
'==============
'TE525 or TE525WS

' Wire
' Color Function CR1000
' ----- -------- -----­' Black Pulse Output P1
' White Ground AG*
' Clear Shield AG*

'*AG = Analog Ground (represented by ground symbol on CR200(X) wiring panel

'Declare the variables and units for the rain measurement

Public Rain_mm
Units Rain_mm=mm

'Define Data Tables

DataTable(Rain,True,-1)

DataInterval(0,60,Min)
Totalize(1,Rain_mm,0)

EndTable

'Main Program

BeginProg

Scan(1,Sec)

'TE525/TE525WS Rain Gage measurement Rain_mm:

PulseCount(Rain_mm,P_SW,2,0,0.254,0)

'For TE525MM Rain Gage, use multiplier of 0.1 in PulseCount instruction
'Call Data Tables and Store Data

CallTable(Rain)
NextScan

B-2

Appendix B. Example Programs

CRBasic Example B-3. CR1000 Control Port Example Program

'Program records precipitation from one TE525 or TE525WS Rain Gage once a

EndProg

B.3 CR1000 Control Port Example Program

'second and stores the total every 60 minutes

'Wiring Diagram
'==============
'TE525 or TE525WS
'
' Wire
' Color Function CR1000
' ----- -------- -----­' Black Pulse Output C8
' White Ground AG*
' Clear Shield AG*

'*AG = Analog Ground (represented by ground symbol on CR200(X) wiring panel

'Declare Public Variables and Units

Public Rain_mm
Units Rain_mm=mm

DataTable (Rain,True,-1)

DataInterval (0,60,Min,0)
Totalize (1,Rain_mm,FP2,0)

EndTable

'Main Program

BeginProg

Scan (1,Sec,1,0)

PulseCount (Rain_mm,1,18,2,0,.254,0)

'For TE525MM Rain Gage use multiplier of 0.1 in PulseCount Instruction.

CallTable (Rain)

NextScan

B-3

Appendix B. Example Programs

B-4

CAUTION

Appendix C. CM270 Installation

Tools needed:

• Open-end wrench, 7/16-inch open-ended wrench, or 7/16-inch socket

wrench

• Long #2 Phillips Screwdriver

Remove manufacturer’s mounting hardware:

1. Remove the three feet mounted on the bottom of the rain gage.

2. Remove the side bracket, but keep the screws.

3. Place the side bracket screws into the rain gage and tighten. This keeps
debris out of the threaded holes.

Do the following to assemble the mounting bracket. FIGURE C-1 and
FIGURE C-2 show the bracket components and the proper assembly.

1. Remove the components from the shipping bag. To assemble the bracket,
you will need the bottom plate, V-shaped plate, S-shaped plate, three bolts,
two leveling springs, and cylindrical spacer. The bottom plate should come
with three black nylon grommets mounted into it, and the pole mounting
hardware attached to it.

2. Place the leveling springs over the bottom plate’s side grommets.

3. Place the V-shaped plate onto the bottom plate. The V-shaped plate’s legs
should be on the leveling springs and the bubble level should be next to
the pole-mounting hardware.

4. Use two bolts to secure the V-plate legs to the bottom plate (with the
springs sandwiched between the two plates). Initially finger tighten the
bolts and then use a wrench to further tighten them.

Do not compress the springs at this time.

5. Place the cylindrical spacer on the bottom plate’s front grommet.

6. Place the S-shaped plate on the spacer and use the bolt to secure it to the
bottom plate. Initially finger tighten the bolt and then use a wrench to
further tighten. Leave it a bit loose.

C-1

Appendix C. CM270 Installation

V-shaped

Bubble level

V-shaped

plate

Bolt

Bolt

Leveling

V-shaped

Leveling

spring

S-shaped

plate

Grommet

Cylindrical
Grommet

Bottom

plate

Grommet

Bolt

S-shaped

plate

V-shaped plate

Bottom

plate

Cylindrical

S-shaped

plate

Cylindrical

Bottom
V-shaped plate

plate leg

plate leg

spacer

spring

FIGURE C-1. Exploded view of the CM270 Mounting Bracket Kit

spacer

spacer

plate

FIGURE C-2. Two views of an assembled CM270

C-2

Appendix C. CM270 Installation

NOTE

Screws

Mounting holes

Mounting hole

Do the following to mount the tipping bucket rain gage to the CM270 bracket
(FIGURE C-3):

Follow this procedure to ensure that the tipping bucket is mounted
correctly. The adjustment screws for the tipping mechanism will
not be accessible if it is mounted incorrectly.

1. Turn the rain gage upside down and set it on a hard surface such as a table
top.

2. Place the mounting bracket on the bottom of the bucket. Line up the three
holes in the mounting bracket with the three holes used for the mounting
feet. When positioned correctly, the tipping bucket’s cable will be near the
bubble level and pole mounting hardware.

3. Use the three self-tapping screws and a long Phillips screwdriver to
securely fasten the mounting bracket to the bottom of the tipping bucket.

4. Flip the assembly over and tighten the bolt that uses the cylindrical spacer.
The bolts securing the leveling springs need to remain loose to allow
leveling when the bracket is mounted to the pole or mast.

FIGURE C-3. Mounting CM270 to the rain gage

C-3

Appendix C. CM270 Installation

Mast clamp

Lock washer

Bubble level

Flat washer

Wingnut

Attach the mounting bracket/tipping bucket assembly to the mounting pipe or
mast:

1. Install and level the mounting pipe or mast.

2. Loosen the mounting bracket’s wingnuts and slide the assembly over the

pipe. If necessary, the pole mounting hardware can be removed to get the
bolts around the pipe. If this is necessary, to reassemble, put the mast
clamp on first followed by the flat washer, lock washer, and wingnut. See
FIGURE C-4.

3. Tighten the assembly onto the pipe, while ensuring that nothing is

blocking the top of the rain gage.

4. Adjust the two bolts on the leveling springs until the bubble in the level is

inside the bullseye.

FIGURE C-4. CM270 pipe mounting (exploded view)

C-4

NOTE

NOTE

Funnel band
(pn 31641

Funnel
band

TE525

Funnel
band

TE525MM

Appendix D. Installation of Texas
Electronics Rain Gage Funnel Band

D.1 Introduction

Texas Electronics recommends using their rain-gage funnel band (pn 31641)
for all installations. This EPDM rubber band resists weathering conditions. It
has a width of 6.35 cm (2.5 in) and a length of approximately 22.86 cm. The
band secures the funnel to the rain gage during high winds.

This appendix shows the installation of the rain-gage funnel band
on a TE525 and TE525MM. The TE525WS funnel is similar to a
TE525MM funnel.

D.2 Installation

Install the funnel band in the field. The small rubber band securing
the tipping bucket, which protects it during shipping, is removed
in this procedure.

1. Remove the funnel from the top of the rain gage. Do not remove the
copper clips (3) that mount between the funnel and the rain gage.

2. Remove the funnel band from the plastic bag.

3. Turn the funnel over on a flat surface. Carefully work the band onto the
bottom of the funnel. Work the band down around the funnel
incrementally — some on one side, then some on the opposite side, and so
forth, continuing to work around the funnel. Proceed until half the width of
the band is on the funnel.

D-1

Appendix D. Installation of Texas Electronics Rain Gage Funnel Band

CAUTION

Edge of
funnel

Edge of
funnel

Band properly
placed on a
TE525

Band properly
placed on a
TE525MM

Bulge for
mounting arm

Bulge for
mounting arm

4. Fold the band over and onto itself. Make sure the band is folded

completely away from the edge of the funnel.

5. Remove the smaller rubber band that secures the tipping mechanism on the

inside of the rain gage.

6. Seat the funnel back on to the rain gage, and push the funnel all the way

down so it is fully seated on the main body.

7. Carefully unroll the band down over the main body so that approximately

2.5 cm (1 in) of the band is on the funnel and the rest is on the main body.
Be careful that the funnel does not slip up during this process and remains
seated. The band will have a slight bulge where it meets the side mounting
arm.

Do not cut the band to fit around the side mounting arm.

D-2

Appendix E. Changing Funnels with a
Different Size

E.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

E.2 TE525WS

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 front of manual).

(p. 7), for the correct multiplier.

E-1

Appendix E. Changing Funnels with a Different Size

E-2

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