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UM-780-303-ARG314 Manual 

–

 V1.1 

 

3 | 

P a g e

 

 

 

Table of Contents 

List of Figures .......................................................................................................................................... 4 

List of Tables ........................................................................................................................................... 4 

1.

 

General Information

 ....................................................................................................................... 5 

About this Manual .............................................................................................................................. 5 

Version Information ........................................................................................................................ 5 

Related Manuals ............................................................................................................................. 5 

2.

 

Introduction

 .................................................................................................................................... 6 

3.

 

Site and Installation Requirements

 ............................................................................................... 6 

Choosing a site .................................................................................................................................... 6 

Unpacking the rain gauge ................................................................................................................... 7 

Levelling the rain gauge ...................................................................................................................... 7 

Alternative mounting options ............................................................................................................. 8 

4.

 

Wiring Guidelines

 ........................................................................................................................... 9 

Wiring for internal loggers ................................................................................................................ 10 

5.

 

Operation

 ...................................................................................................................................... 10 

Operation of the gauge ..................................................................................................................... 10 

6.

 

Maintenance and Calibration

 ...................................................................................................... 11 

Basic Maintenance ............................................................................................................................ 11 

Calibration ......................................................................................................................................... 12 

7.

 

Specifications

 ................................................................................................................................ 13 

Gauge Specifications ......................................................................................................................... 13 

Cable Specifications (if fitted) ........................................................................................................... 14 

Appendix A 

–

 ARG314 products, accessories and spares

 ................................................................... 15 

 

 

 

 

Содержание ARG314

Страница 1: ...UM 780 303 ARG314 Manual V1 1 ARG314 Rain Gauge User Manual...

Страница 2: ...or by any means electronic or mechanical including photocopying nor may its contents be communicated to a third party without prior written permission of the copyright holder The contents are subject...

Страница 3: ...on Requirements 6 Choosing a site 6 Unpacking the rain gauge 7 Levelling the rain gauge 7 Alternative mounting options 8 4 Wiring Guidelines 9 Wiring for internal loggers 10 5 Operation 10 Operation o...

Страница 4: ...ML system 9 Figure 4 Reed switch and resistor 9 Figure 5 Filter and filter cap left Nozzle delivering water into tipping bucket right 10 Figure 6 Internal image of the ARG314 tipping bucket mechanism...

Страница 5: ...not cover all aspects of ARG314 applications Please refer to associated equipment manuals or consult papers and technical notes on the EML website www emltd net Version Information Table 1 Document Re...

Страница 6: ...gauge The gauge should ideally be no closer than at least twice the height of the obstruction Extensive details on rain gauge siting best practice can be found in Chapter 6 of the WMO Guide to Meteor...

Страница 7: ...and cable top left levelling feet top right and blanking plug bottom Levelling the rain gauge The ARG314 can be mounted directly onto any flat surface and securely fastened as required There is a sma...

Страница 8: ...and areas prone to snowfall It should be noted that regardless of which option is used to mount the gauge it must be firmly fixed and not susceptible to vibration Vibration may lead to false tipping o...

Страница 9: ...s needed if long cables are used In a long cable significant capacitance can exist between the conductors which discharges across the reed switch as it closes As well as shortening the life of the swi...

Страница 10: ...removing any leaves dirt etc Figure 5 Water then drips from the nozzle into one of the two halves of the tipping bucket The internal tipping bucket assembly rotates around precision rolling pivot bear...

Страница 11: ...ng bubble is provided as an aid to levelling of the rain gauge Connections to the reed switches are made via the green connector terminal 6 Maintenance and Calibration Basic Maintenance To ensure reli...

Страница 12: ...closely for any dirt or wear on the pivot pin and bucket tubes PLEASE NOTE A spares kit is available with filter cap and screws Contact EML sales sales emltd net for more information Calibration The s...

Страница 13: ...19 WMO Compliant Yes Output Contact Closure Reed Switch Dual reed switch upgrade available due Q3 2019 Typical Accuracy 99 up to 120mm hr Rainfall Intensity 0 1000 mm hr with mathematical correction c...

Страница 14: ...air of 7 0 25mm 22awg tinned copper conductors insulated with polyethylene wrapped in an aluminised tape with a 7 0 25mm tinned drain wire and a PVC outer sheath Table 4 Cable Specifications if fitted...

Страница 15: ...n gauge 0 5mm inc 6 metre cable Available in Q3 P 780 308 ARG314 L Rain gauge 0 5mm Available in Q3 P 780 310 ARG314 STD S Siphon Rain gauge 0 1mm P 780 311 ARG314 EC S Siphon Rain gauge 0 1mm inc 6 m...

Страница 16: ...P 780 333 ARG314 Funnel Assembly P 780 336 ARG314S Funnel Assembly P 780 350 ARG314 Calibration P 780 361 ARG314 Base and Cross Support P 780 363 ARG314 Calibrated Base Assembly P 780 365 ARG314 Bucke...

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