RG12 Series Rain Gauge Guide 2015 Page 1

Environdata

Rain Gauge Handbook

REV 08.07.15

Material in this Handbook is copyright.

All rights reserved by the publishers.

Environdata Weather Stations Pty Ltd

42-44 Percy Street, Warwick,

Queensland, AUSTRALIA, 4370

Phone: (07) 4661 4699 Intl: +61 7 4661 4699

Fax: (07) 4661 2485 Intl: +61 7 4661 2485

No reproduction without the prior permission of the publisher.

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Table of Contents RAINFALL SENSOR .................................................................................................................................... 3

MECHANISM OF ACTION .................................................................................................................................. 3 SITING THE RAIN GAUGE .................................................................................................................................. 3

RG12 MODEL RANGE: .............................................................................................................................. 4

RG12U REED CONTACT MODEL ....................................................................................................................... 4 RG12H HALL EFFECT MODEL ........................................................................................................................... 4 RGC12 RAIN GAUGE CONVERTER ..................................................................................................................... 4

SPECIFICATIONS: ...................................................................................................................................... 5

ROUTINE MAINTENANCE: ........................................................................................................................ 6

ELECTRICAL CONNECTION ........................................................................................................................ 6

RG12U ........................................................................................................................................................ 6 RG12H ........................................................................................................................................................ 6

ISRG TBRG POST INSTALLATION: .............................................................................................................. 7

APPENDIX A: RAIN GAUGE FIELD CALIBRATION CHECK: ......................................................................... 11

BACKGROUND: ............................................................................................................................................. 11 STEP 1: CLEAN & LEVEL ................................................................................................................................. 11 STEP 2: BUCKET OPERATION UNIMPEDED .......................................................................................................... 11 STEP 3: PRIME THE SYPHON ........................................................................................................................... 11 STEP 4: MEASURE AND POUR ......................................................................................................................... 11 STEP 5: REPEAT ............................................................................................................................................ 11

APPENDIX B: TROUBLESHOOTING .......................................................................................................... 12

BACKGROUND .............................................................................................................................................. 12 CABLE ........................................................................................................................................................ 12 SENSOR CONNECTOR ..................................................................................................................................... 12 SENSOR FUNNEL ........................................................................................................................................... 12 SENSOR PCB ............................................................................................................................................... 13 ENVIRONDATA SUPPORT ................................................................................................................................ 13

APPENDIX C: CLEANING PROCEDURE ..................................................................................................... 14

SUPPLIED IN THE CLEANING KIT: ....................................................................................................................... 14 RECOMMENDED FREQUENCY: ......................................................................................................................... 14 RECOMMENDED METHOD: ............................................................................................................................. 14

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Rainfall Sensor

Mechanism of Action

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RG12 Model Range: RG12U Reed Contact Model

RG12H Hall Effect Model

RGC12 Rain Gauge Converter

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Specifications:

Mechanism:

Measurement Units:

Operating Range:

Accuracy:

Resolution:

Reliability:

Housing:

Dimensions:

Supply Voltage:

Ordering Information:

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Routine Maintenance:

Electrical Connection

RG12U

RG12H

Pin A Pin C

Pin B

ID Dot

Keyway

Front

View

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ISRG TBRG Post Installation:

Fig2.

450mm

450mm

Drain hole

550mm

450mm

450mm

Rain

Gauge System

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Rain Gauge Brackets are supplied, fitted upside down for ease of packing.

Assembly as packaged

Brackets in correct place.

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Adjust two nuts until Rain Gauge is Level.

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Appendix A: Rain Gauge Field Calibration Check:

Background:

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APPENDIX B: Troubleshooting

Background

Cable

Sensor Connector

Sensor Funnel

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Sensor PCB

Environdata Support

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APPENDIX C: Cleaning Procedure Supplied in the cleaning kit:

1. Wire rod 2. Pipe Cleaner 3. White Filter Wadding 4. Syringe 5. 3 of M3 x 10mm screws

Items required to clean & service RG: 1. RG12 Cleaning Kit 2. Container of warm water (Minimum 1L)

a. (mild detergent may be used but all residue must be washed off with clean water) 3. Empty container (Approx 1L) 4. Scrubbing brush / clean rags

Recommended Frequency: It is recommended that the following cleaning procedure be done as often as required.

Your site may require cleaning of the RG monthly, every 2, 3, 6 or 12 months.

We recommend you begin with a monthly cleaning schedule. If the RG shows no sign of requiring cleaning extend the interval slowly until you find an interval that suits your site. o Please note; if the RG is getting very dirty or blocked, then your cleaning interval is too

long. o In best case situations, the maximum interval between cleaning is 12 months.

Recommended Method:

1. Download all data & disconnect the Rain Gauge from your recording system.

2. Remove the 3 screws holding the barrel in place. Carefully lift the barrel off the RG base.

3. Remove the filter from the funnel and wash the funnel until completely clean of all dirt, dust and debris. Remove the old filter wadding, clean the filter, rinse and dry.

4. Unscrew the top section of the brass siphon and remove the top cap.

a. Use the wire rod, push it up inside the syphon so as to dislodge any dirt or mould. Now repeat using the pipe cleaner.

b. Once all dirt has been dislodged back flush with the syringe

5. Pour clean water through the funnel to wash away any remaining residue.

6. Roll the supplied white wadding material up and insert this into the inside of the filter. This will not restrict the flow of water but will stop small particles entering the unit.

a. The old filter material may be re-used if still in good clean condition, but must be

replaced at least every 12 months

7. Screw the brass siphon top back into place, put cleaned filter back in place.

8. Clean the tipping buckets carefully, rinse with damp cloth and dry with dry cloth.

9. Replace the barrel. Use the supplied screws if required.

10. Perform field calibration check and note the results.