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2

SPECIFICATIONS AND DETAILS

Evaporation System

Pan Type:

US Class A compatible.

Range:

30mm to 250mm. Pan empty to full.

Resolution:

0.2mm of evaporation or rainfall.

Accuracy:

+/- 0.4mm

Level Reset:

Programmable. Default reset to 200mm (+/- 1mm) at a
preset time each day. Also resets 10mm below the
overflow level.

Reset rate:

Pumps 50mm out in 3 minutes. Fills 3mm per minute with
10kpa (1m) head. Rate of refill increases as head increases.

2.1

Manual Recording System

Model 6529C Evaporation Pan

Dimensions:

Internal diameter 1208mm, outside diameter 1290mm.

Depth 250mm.

Operating depth:

200mm.

Volume at operating

depth:

229 litres.

Material:

Fibreglass. Internal surface gloss white. Pre-drilled with
two 20mm diameter holes for hose fittings.

Intake:

Bulkhead fitting for 12.5mm ID hose. Connects level
gauge to stillwell.

Refill:

Bulkhead fitting for 12.5mm ID hose. Connects level
control system to pan.

Pan weight:

12kg.

Mounting:

Timber frame 1300 1300. Treated plantation softwood.

Mounting weight:

20kg.

Automatic Evaporation System

SPECIFICATIONS AND DETAILS 5

Model 6529D Evaporation Pan Bird Guard

Dimensions:

Outside diameter 1200mm. Height 250mm.

Material:

Frame - 8mm steel rod. Mesh - 12mm square steel mesh.

Finish:

Hot dip galvanised.

Weight:

12kg.

Model 6529M Point (Level) Gauge

Material:

PVC or Stainless Steel cylinder with point gauge at
200mm.

Connectors:

Hose and fittings to connect to intake from stillwell.

Volumetric Flask

Material:

Clear PVC graduated container.

Capacity:

2000ml

UNIDATA

6 SPECIFICATIONS AND DETAILS

Model 6529M
Level gauge

Model 6529E
Drain pump

Model 6529D
Bird guard

Mounting pallet

Model 6529C
Evaporation pan

Inlet hose to stillwell

Содержание STARLOG 6529

Страница 1: ...may be reproduced transmitted transcribed stored in a retrieval system or translated into any language or computer language in any form or by any means electronic mechanical magnetic optical chemical...

Страница 2: ...he Water Level Instrument 23 5 3 5 Set And Test The System 24 5 4 The Level Control System 25 5 4 1 Overview 25 5 4 2 Level Control Module 26 Automatic Evaporation System i 5 4 3 Fill System 26 5 4 4...

Страница 3: ...een pan evaporation and site conditions This is required for evaporation and evapo transpiration studies and modelling An optional telemetry system can be connected to the datalogger Landline cellular...

Страница 4: ...E or later and are supplied on disk with initial releases of the instrument Alternatively you can obtain this update from the technical support section on the UNIDATA web site www unidata com au Refer...

Страница 5: ...ngs Intake Bulkhead fitting for 12 5mm ID hose Connects level gauge to stillwell Refill Bulkhead fitting for 12 5mm ID hose Connects level control system to pan Pan weight 12kg Mounting Timber frame 1...

Страница 6: ...el on top of cabinet Model 6529A 3 Float system inside PVC 115mm float line counterweight and offset guide pulley Hose 12 6mm heavy duty flexible hose 1 8 metres long Two stainless steel hose clamps s...

Страница 7: ...rain Pump Type Marine bilge pump Located in pan Cable length 2 metres Power 12 volts 1 2 amps Capacity Maximum 20 litres minute Housing PVC enclosure attached to inside of pan Drain Hose 12 5mm hose c...

Страница 8: ...rable with a manual pan Automatic Evaporation System EVAPORATION MONITORING TECHNIQUES 11 3 1 Using Evaporation Pan Data The daily total evaporation can vary from 0 on a cool and misty day to more tha...

Страница 9: ...sites and data quality is compromised Water level too high will result in rainfall splashing or blowing from the tank when it is near full and overflowing when it is full Water level below the referen...

Страница 10: ...tomatic Evaporation System SITE REQUIREMENTS AND LAYOUT 15 4 1 1 Water Supply The evaporation pan is refilled each day by the level control system The automated refill is controlled by a solenoid swit...

Страница 11: ...y tank on stand Optional hose from drain pump Enters top of tank to prevent siphoning 1 metre head Model 6529 2L Low Pressure Solenoid 0 70kPa mounted in enclosure 4 1 4 Underground Supply Where the w...

Страница 12: ...in the middle of the evaporation pan 5 2 Installing The Model 6529A Enclosure The stillwell enclosure is located 1 5 metres from the pan on the side away from the equator where it will not shadow the...

Страница 13: ...ment Fill the pan with water to near the reference point in the pan level gauge Check the hose connections and the pan for leaks and fix any problems Confirm that the water level in the stillwell is t...

Страница 14: ...stalled on both the float pulley and offset pulley check that the float and counterweight can rise freely from the bottom to the top of the stillwell without clashing or touching the sides 6 Rotate th...

Страница 15: ...ar powered battery system A regulator on the switch card manages battery charging All devices connect to the row of pluggable terminals located at the front of the enclosure Automatic Evaporation Syst...

Страница 16: ...lifted from the well separated in the middle and the pump lifted out for cleaning The bottom of the pump can be removed to clean and service the impeller The pump must be inverted when installed for r...

Страница 17: ...t hole of the three at the bottom of the left hand wall of the cabinet Attach the hose to the pan and seal it with a hose clamp Connect the pan end of the hose to the fitting in the top hole of the pa...

Страница 18: ...mm water level falls and the rainfall data all 0 2mm rises The data is logged in increments of 0 4mm The effects of any pan water level resets and minor water level pulsations are not recorded The tim...

Страница 19: ...following settings are recommended for a normal project You may prefer a 15 minute log interval to reduce the volume of logged data Click on the Events panel to open the listing of events Double clic...

Страница 20: ...elect Scheme from the toolbar then Save As Automatic Evaporation System OPERATING THE SITE 35 The Log Buffer Panel The Events Detail Panel You should save it with a scheme name that identifies your si...

Страница 21: ...NG THE SITE 37 6 5 Data Recovery And Review Refer to the software manual for Version 3 Software for detailed descriptions on operating the software and displaying data Select Display a Data File from...

Страница 22: ...ration and rainfall data is the accumulated total since the logger was last reset It may contain corrupting events if there has been any artificial water level changes There are two shown in the above...

Страница 23: ...ed spare parts and check instruments Take the visit file Automatic Evaporation System SITE VISITS AND MAINTENANCE 41 7 1 2 Carrying Out The Site Inspection At the site your objectives are to Recover t...

Страница 24: ...ariations Automatic Evaporation System SITE VISITS AND MAINTENANCE 43 6 Check that the derived rainfall is sensible and supported by the evaporation data 7 Select the ASCII report The file will be sav...

Страница 25: ...hould be added to the station visit file to remind the site operator to attend to the matter at the next site visit The interaction between site operation data processing reporting and review allows f...

Страница 26: ...7 3 5 Solenoid Pump Regularly check the operation of the solenoid and pump To check the condition and serviceability of the solenoid and or pump 1 Connect each device to the TEST position of the cont...

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