Aquaread Aquaprobe AP-5000 User manual

Instruction Manual
for the
Aquaprobe® AP-5000
Multiparameter Water Quality Probe
and associated
Aquameter®, tilities & Accessories
Aquameter® firmware Version 6.20 and Above
AP-5000 firmware Version 4.07 and Above
Document No. 10401-00906
Revision: M
Date: August 20, 2019
Aquaread® Ltd
Bridge House
Northdown Industrial Park
Broadstairs
Kent
CT10 3JP
ENGL ND
Phone: [phone]
www.aquaread.com

quaprobe® P-5000 Instruction Manual 10401-00906 Rev M
PROPR ETARY NOT CE
The information disclosed within this document or separately supplied in furtherance of this document includes
proprietary rights of Aquaread® Ltd. Neither this document nor the information disclosed herein or of a
supplementary nature shall be reproduced or transferred to other documents or used for any other purposes,
except as specifically authorised in writing by Aquaread® Ltd. Copyright 019 Aquaread® Ltd. All rights
reserved.
SOFTWARE L CENCE AGREEMENT
By using the Aquameter®, its associated probes and PC based software (AquaLink),
you agree to be bound by the terms and conditions of the following software licence
agreement. Please read this agreement carefully.
Aquaread® Ltd grants you a limited license to use the software embedded in the devices (the “firmware”) in
binary executable form in the normal operation of the products. Title, ownership rights and intellectual
property rights in and to the Software remain in Aquaread® Ltd.
You acknowledge that the Software is the property of Aquaread® Ltd and is protected under British
copyright laws and international copyright treaties. You further acknowledge that the structure, organisation
and code of the Software are valuable trade secrets of Aquaread® Ltd.
You agree not to decompile, dissemble, modify, reverse assemble, reverse engineer or reduce to human
readable form the Software or any part thereof or create any derivative works based on the Software.
RECYCL NG
Any product bearing this symbol must be handed over to an applicable collection point for the
recycling of electrical and electronic equipment. By ensuring this product is disposed of properly,
you will prevent possible adverse consequences for the environment which could be caused by
inappropriate waste handling.
Note: For return for recycling, please contact Aquaread® Ltd for instructions on how to return end-of-life
equipment, accessories, and all auxiliary items for proper disposal.
WARN NG
Favourable indications made by this equipment do not guarantee water is safe for human or
animal consumption. This equipment can not detect the presence of harmful bacteria or toxins. If in
doubt, ALWAYS TREAT SUSPECT WATER PR OR TO CONSUMPT ON.
Limitations of Liability
Aquaread® Ltd and its affiliates specifically disclaim liability for any and all direct, indirect, special,
general, incidental, consequential, punitive or exemplary damages including, but not limited to, loss
of profits or revenue or anticipated profits or revenue or expenses incurred arising out of the use or
inability to use any Aquaread® product, miscalibration, loss of data or product failure, even if
Aquaread® Ltd and/or its affiliates has been advised of the possibility of such damages or they are
foreseeable or for claims by any third party. Notwithstanding the foregoing, in no event shall
Aquaread® Ltd and/or its affiliates aggregate liability arising under or in connection with Aquaread®
products, regardless of the number of events, occurrences, or claims giving rise to liability, be in
excess of the price paid by the purchaser for the Aquaread® product.
TRADEMARKS
Aquaread®, AquaPlus™, Aquameter®, Aquaprobe®, AquaLink™ and RapidCal™
are all trademarks of Aquaread® Ltd.
Microsoft®, Windows® and Excel® are trademarks of Microsoft Corporation
GOOGLE™ is a trademark of Google, Inc. StablCal® is a trademark of the HACH company
Aquaread ® Ltd has no affiliation with Microsoft Corporation, Google, nc. or HACH
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quaprobe® P-5000 Instruction Manual 10401-00906 Rev M
Table of Contents
1. INTRODUCTION...........................................................................................................................................................8
2. WHAT’S IN THE BOX?.................................................................................................................................................8
2.1. THE AQUAMETER® AND THE ENVIRONMENT......................................................................................................................8
2.2. THE AP-5000 AND THE ENVIRONMENT.............................................................................................................................8
2.3. IMPORTANT NOTES REGARDING GALVANIC CORROSION.......................................................................................................8
2.4. ABOUT THE PROBE SLEEVE AND SLEEVE END CAP.............................................................................................................9
2.5. TOP TIPS OR SUCCESS UL MEASUREMENTS USING OPTICAL ELECTRODES................................................................................10
3. BATTERY INSTALLATION AND CARE.................................................................................................................11
3.1. CHOICE O BATTERY TYPE............................................................................................................................................11
3.2. BATTERY LI E..............................................................................................................................................................11
3.3. BATTERY CHARGING.....................................................................................................................................................11
3.4. BATTERY CONDITION ICON.............................................................................................................................................11
3.5. BATTERY SAVER UNCTIONS..........................................................................................................................................11
4. OVERVIEW OF THE OPERATING SYSTEM.........................................................................................................12
4.1. INITIAL SWITCH ON, LANGUAGE AND CLOCK SETUP.........................................................................................................12
. CONNECTING AN AP- 000........................................................................................................................................13
5.1. AP-5000 DEPLOYMENT (SEE ALSO SECTION 2.3).............................................................................................................13
6. TAKING MEASUREMENTS......................................................................................................................................14
6.1. WHAT DOES IT ALL MEAN?.........................................................................................................................................15
6.2. TREND INDICATION.......................................................................................................................................................15
6.3. GLOBAL STABILITY INDICATION......................................................................................................................................15
6.4. TEMPERATURE COMPENSATION.......................................................................................................................................16
6.5. GPS RECEPTION..........................................................................................................................................................17
7. DEPTH MEASUREMENT...........................................................................................................................................18
7.1. TAKING DEPTH MEASUREMENTS.....................................................................................................................................18
7.2. DI ERENTIAL DEPTH MEASUREMENT..............................................................................................................................18
7.3. DEPTH CALIBRATION.....................................................................................................................................................18
8. MEMORY MODE.........................................................................................................................................................19
8.1. MANUALLY SAVING READINGS.......................................................................................................................................19
8.2. RECALLING AND VIEWING SAVED READINGS....................................................................................................................19
8.3. RECALLING GLP DATA................................................................................................................................................19
8.4. CLEARING THE MEMORY................................................................................................................................................20
8.5. AUTOMATIC DATA LOGGING..........................................................................................................................................20
8.6. BATTERY AND MEMORY DURATION IN LOW POWER LOGGING MODE..................................................................................21
8.7. IMPORTANT IN ORMATION ABOUT MEMORY MODE...........................................................................................................22
9. SETUP & INSTALL......................................................................................................................................................23
9.1. SETTING UNITS O MEASUREMENT..................................................................................................................................23
9.2. AUX SOCKET ASSIGNMENT..........................................................................................................................................24
10. RAPIDCAL CALIBRATION METHOD..................................................................................................................26
10.1. ABOUT CALIBRATION..................................................................................................................................................26
10.2. SPECIAL NOTES CONCERNING ISE ELECTRODES.............................................................................................................26
10.3. USING RAPIDCAL.......................................................................................................................................................26
To Check / Calibrate the 100% Saturation Point in Damp Air................................................................................28
10.4. CALIBRATION ERROR MESSAGES...................................................................................................................................29
10.5. RESETTING TO ACTORY CALIBRATION DE AULTS...........................................................................................................30
10.6. CALIBRATION REPORTS................................................................................................................................................30
10.7. CALIBRATION DATA STORAGE AND RETRIEVAL...............................................................................................................30
11. AFTER USE..................................................................................................................................................................32
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quaprobe® P-5000 Instruction Manual 10401-00906 Rev M
12. GENERAL PROBE MAINTENANCE......................................................................................................................33
12.1. IDENTI YING THE INDIVIDUAL ELECTRODES ....................................................................................................................33
13. PH/ORP ELECTRODE CALIBRATION AND MAINTENANCE........................................................................34
13.1. RECOGNISING THE PH/ORP ELECTRODE........................................................................................................................34
13.2. ELECTRODE REMOVAL AND REPLACEMENT.....................................................................................................................34
13.3. KEEPING THE ELECTRODES MOIST.................................................................................................................................34
13.4. CALIBRATING PH........................................................................................................................................................35
13.5. SPECIAL NOTES CONCERNING ISE ELECTRODES DURING PH CALIBRATION.........................................................................35
13.5.1. Calibratin the First Point (pH 7.00)............................................................................................................35
13.5.2. Calibratin the Second Point.........................................................................................................................37
13.5.3. Calibratin the Third Point............................................................................................................................37
13.6. ERRORS DURING CALIBRATION.....................................................................................................................................37
13.7. PH ELECTRODE E ICIENCY.........................................................................................................................................37
13.8. SERVICING THE PH ELECTRODE.....................................................................................................................................37
13.9. CALIBRATING ORP.....................................................................................................................................................38
13.10. CONVERTING ORP READINGS TO THE HYDROGEN SCALE..............................................................................................40
14. DO/EC ELECTRODE CALIBRATION AND MAINTENANCE..........................................................................41
14.1. RECOGNISING THE DO/EC ELECTRODE.........................................................................................................................41
14.2. DO MEASUREMENT TECHNIQUE...................................................................................................................................41
14.3. PRECAUTIONS DURING USE..........................................................................................................................................41
14.4. CALIBRATING THE DO/EC ELECTRODE.........................................................................................................................41
14.5. CALIBRATING THE DO ZERO POINT..............................................................................................................................41
14.6. CALIBRATING THE DO 100% SATURATION POINT IN MOIST AIR.....................................................................................43
14.7. REPLACING THE OPTICAL DO CAP...............................................................................................................................43
14.8. CALIBRATING EC.......................................................................................................................................................45
14.9. VERI YING EC CALIBRATION.......................................................................................................................................47
14.10. ERRORS DURING CALIBRATION...................................................................................................................................47
14.11. CLEANING THE EC CONTACTS....................................................................................................................................47
14.12. CALIBRATING TEMPERATURE......................................................................................................................................48
1 . OPTIONAL OPTICAL ELECTRODES CALIBRATION AND MAINTENANCE............................................49
15.1. TOP TIPS OR SUCCESS UL MEASUREMENTS USING OPTICAL ELECTRODES..............................................................................49
15.2. OPTICAL ELECTRODE CALIBRATION SEQUENCE...............................................................................................................50
15.3. LUORESCENT ELECTRODE GRAB SAMPLE CORRECTION ACTOR.......................................................................................50
15.4. 2000/5000-TURB TURBIDITY ELECTRODE..................................................................................................................51
15.4.1. About Turbidity..............................................................................................................................................51
15.4.2. Precautions Durin Use.................................................................................................................................51
15.4.3. Ne ative Turbidity Readin s..........................................................................................................................52
15.4.4. Calibratin the Turbidity Electrode...............................................................................................................52
15.4.5. Calibration Points..........................................................................................................................................52
15.4.6. Turbidity Zero Point Calibration...................................................................................................................53
15.4.7. Verifyin the Zero Calibration.......................................................................................................................54
15.4.8. Calibratin the Turbidity 20 NTU & 1000 NTU Points.................................................................................54
15.4.9. Errors Durin Calibration.............................................................................................................................55
15.4.10. Lens and Sleeve Maintenance......................................................................................................................55
15.5. 2000/5000-BGA-PC RESHWATER BLUE-GREEN ALGAE (PHYCOCYANIN) ELECTRODE.....................................................56
15.5.1. Principle of Operation...................................................................................................................................56
15.5.2. Limitations of Use..........................................................................................................................................56
15.5.3. Calibratin the BGA-PC Electrode................................................................................................................56
15.5.4. Calibration Solution Preparation..................................................................................................................57
15.5.5. Serial Dilution................................................................................................................................................57
15.5.6. Zero Point Calibration...................................................................................................................................58
15.5.7. Calibratin Point 2.........................................................................................................................................59
15.5.8. Calculatin and Applyin a Grab Sample Factor.........................................................................................59
15.5.9. Errors Durin Calibration.............................................................................................................................60
15.5.10. Lens and Sleeve Maintenance......................................................................................................................60
15.6. 2000/5000-BGA-PE SALTWATER BLUE-GREEN ALGAE (PHYCOERYTHRIN) ELECTRODE...................................................61
15.6.1. Principle of Operation...................................................................................................................................61
15.6.2. Limitations of Use..........................................................................................................................................61
15.6.3. Calibratin the BGA-PE Electrode................................................................................................................61
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15.6.4. Calibration Solution Preparation..................................................................................................................62
15.6.5. Serial Dilution................................................................................................................................................62
15.6.6. Zero Point Calibration...................................................................................................................................63
15.6.7. Calibratin Point 2.........................................................................................................................................64
15.6.8. Calculatin and Applyin a Grab Sample Factor.........................................................................................64
15.6.9. Errors Durin Calibration.............................................................................................................................65
15.6.10. Lens and Sleeve Maintenance......................................................................................................................65
15.7. 2000/5000-CPHYLL CHLOROPHYLL ELECTRODE........................................................................................................66
15.7.1. Principle of Operation...................................................................................................................................66
15.7.2. Limitations of Use..........................................................................................................................................66
15.7.3. Calibratin the CPHYLL Electrode...............................................................................................................66
15.7.4. Calibration Solution Preparation..................................................................................................................67
15.7.5. Serial Dilution................................................................................................................................................67
15.7.6. Zero Point Calibration...................................................................................................................................68
15.7.7. Calibratin Point 2.........................................................................................................................................69
15.7.8. Calculatin and Applyin a Grab Sample Factor.........................................................................................69
15.7.9. Errors Durin Calibration.............................................................................................................................70
15.7.10. Lens and Sleeve Maintenance......................................................................................................................70
15.8. 2000/5000-RHOD RHODAMINE ELECTRODE...............................................................................................................71
15.8.1. Principle of Operation...................................................................................................................................71
15.8.2. Limitations of Use..........................................................................................................................................71
15.8.3. Calibratin the RHOD Electrode...................................................................................................................71
15.8.4. Calibration Solution Preparation..................................................................................................................71
15.8.5. Serial Dilution................................................................................................................................................72
15.8.6. Zero Point Calibration...................................................................................................................................72
15.8.7. Calibratin Point 2.........................................................................................................................................74
15.8.8. Grab Sample Factor.......................................................................................................................................74
15.8.9. Errors Durin Calibration.............................................................................................................................74
15.8.10. Lens and Sleeve Maintenance......................................................................................................................74
15.9. 2000/5000- SCEIN LUORESCEIN ELECTRODE...........................................................................................................75
15.9.1. Principle of Operation...................................................................................................................................75
15.9.2. Limitations of Use..........................................................................................................................................75
15.9.3. Calibratin the FSCEIN Electrode................................................................................................................75
15.9.4. Calibration Solution Preparation..................................................................................................................75
15.9.5. Serial Dilution................................................................................................................................................76
15.9.6. Zero Point Calibration...................................................................................................................................76
15.9.7. Calibratin Point 2.........................................................................................................................................78
15.9.8. Grab Sample Factor.......................................................................................................................................78
15.9.9. Errors Durin Calibration.............................................................................................................................78
15.9.10. Lens and Sleeve Maintenance......................................................................................................................78
15.10. 2000/5000-RE OIL RE INED OIL ELECTRODE.........................................................................................................79
15.10.1. Principle of Operation.................................................................................................................................79
15.10.2. Limitations of Use........................................................................................................................................79
15.10.3. Special Precautions When Usin the REFOIL Electrode............................................................................80
15.10.4. Calibratin the REFOIL Electrode..............................................................................................................80
15.10.5. Calibration Solution Preparation................................................................................................................80
15.10.6. Serial Dilution..............................................................................................................................................80
15.10.7. Zero Point Calibration.................................................................................................................................81
15.10.8. Calibratin Point 2.......................................................................................................................................82
15.10.9. Calculatin and Applyin a Grab Sample Factor.......................................................................................83
15.10.10. Errors Durin Calibration.........................................................................................................................83
15.10.11. Lens and Sleeve Maintenance....................................................................................................................83
15.11. 2000/5000-CDOM/ DOM CHROMOPHORIC ( LUORESCENT) DISSOLVED ORGANIC MATTER.........................................85
15.11.1. Principle of Operation.................................................................................................................................85
15.11.2. Limitations of Use........................................................................................................................................85
15.11.3. Calibratin the CDOM Electrode................................................................................................................86
15.11.4. Calibration Solutions...................................................................................................................................86
15.11.5. Zero Point Calibration.................................................................................................................................86
15.11.6. Calibratin Point 2.......................................................................................................................................88
15.11.7. Calculatin and Applyin a Grab Sample Factor.......................................................................................88
15.11.8. Errors Durin Calibration...........................................................................................................................89
15.11.9. Lens and Sleeve Maintenance......................................................................................................................89
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quaprobe® P-5000 Instruction Manual 10401-00906 Rev M
15.11.10. Special Note Concernin CDOM Calibration Solutions...........................................................................89
16. OPTIONAL ISE ELECTRODES CALIBRATION AND MAINTENANCE........................................................90
16.1. ISE ELECTRODE LIMITATIONS......................................................................................................................................90
16.2. CALIBRATION POINTS..................................................................................................................................................90
16.3. SPECIAL NOTES CONCERNING ISE ELECTRODES.............................................................................................................90
16.4. 5000/7000-AMM AMMONIUM/AMMONIA ELECTRODE..................................................................................................91
16.4.1. Ammonium Calibration Solution Preparation...............................................................................................91
16.4.2. Three-point Calibration.................................................................................................................................91
POINT 2.............................................................................................................................................................................93
POINT 3.............................................................................................................................................................................93
16.4.3. Two-point Calibration....................................................................................................................................94
16.4.4. Sin le-point Calibration.................................................................................................................................94
16.4.5. Errors Durin Calibration.............................................................................................................................94
16.5. 5000/7000-NIT NITRATE ELECTRODE........................................................................................................................95
16.5.1. Nitrate Calibration Solution Preparation......................................................................................................95
16.5.2. Three-point Calibration.................................................................................................................................95
POINT 2.............................................................................................................................................................................97
POINT 3.............................................................................................................................................................................97
16.5.3. Two-point Calibration....................................................................................................................................98
16.5.4. Sin le-point Calibration.................................................................................................................................98
16.5.5. Errors Durin Calibration.............................................................................................................................98
16.6. 5000/7000-CHL CHLORIDE ELECTRODE.....................................................................................................................99
16.6.1. Chloride Calibration Solution Preparation...................................................................................................99
16.6.2. Three-point Calibration.................................................................................................................................99
POINT 2...........................................................................................................................................................................101
POINT 3...........................................................................................................................................................................101
16.6.3. Two-point Calibration..................................................................................................................................102
16.6.4. Sin le-point Calibration...............................................................................................................................102
16.6.5. Errors Durin Calibration...........................................................................................................................102
16.7. 5000/7000-CAL CALCIUM ELECTRODE....................................................................................................................103
16.7.1. Calcium Calibration Solution Preparation..................................................................................................103
16.7.2. Three-point Calibration...............................................................................................................................103
POINT 2...........................................................................................................................................................................105
POINT 3...........................................................................................................................................................................105
16.7.3. Two-point Calibration..................................................................................................................................106
16.7.4. Sin le-point Calibration...............................................................................................................................106
16.7.5. Errors Durin Calibration...........................................................................................................................106
16.8. 5000/7000- LU LUORIDE ELECTRODE....................................................................................................................107
16.8.1. Fluoride Calibration Solution Preparation.................................................................................................107
16.8.2. Three-point Calibration...............................................................................................................................108
POINT 2...........................................................................................................................................................................109
POINT 3...........................................................................................................................................................................109
16.8.3. Two-point Calibration..................................................................................................................................110
16.8.4. Sin le-point Calibration...............................................................................................................................110
16.8.5. Errors Durin Calibration...........................................................................................................................110
17. AQUALINK PC SOFTWARE..................................................................................................................................111
17.1. DOWNLOADING AQUALINK™ PC SO TWARE ROM THE AQUAREAD® WEBSITE...............................................................111
17.2. SO TWARE INSTALLATION..........................................................................................................................................111
17.3. DRIVER INSTALLATION...............................................................................................................................................111
17.4. RUNNING AQUALINK................................................................................................................................................111
17.5. UPLOADING DATA ROM YOUR AQUAMETER®............................................................................................................112
17.6. DISPLAYING GPS CO-ORDINATES...............................................................................................................................112
17.7. ON SCREEN HELP.....................................................................................................................................................113
17.8. SAVING LOGGED DATA.............................................................................................................................................113
17.9. RETRIEVING LOGGED DATA.......................................................................................................................................113
17.10. EXPORTING DATA...................................................................................................................................................113
17.11. EXPORTING TEXT REPORTS......................................................................................................................................113
17.12. TYPICAL TEXT REPORT COVER PAGE........................................................................................................................115
17.13. EXPORTING EXCEL® ILES......................................................................................................................................116
17.14. EXPORTING GOOGLE™ ILES...................................................................................................................................116
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17.15. IMPORTING ILES INTO GOOGLE™ EARTH.................................................................................................................116
17.16. GOOGLE™ EXAMPLE..............................................................................................................................................117
18. LIMITED WARRANTY...........................................................................................................................................118
18.1. CLEANING PRIOR TO RETURN....................................................................................................................................118
18.2. DECONTAMINATION CERTI ICATE................................................................................................................................119
19. TROUBLESHOOTING.............................................................................................................................................120
20. DECLARATION OF CONFORMITY....................................................................................................................121
21. APPENDIX 1. THE TECH BEHIND AQUAREAD’S OPTICAL DO MEASUREMENT SYSTEM..............122
21.1. PRINCIPLE O OPERATION...........................................................................................................................................122
21.2. SENSOR CAP LI E.....................................................................................................................................................123
22. APPENDIX 2. INSTALLING AUX ELECTRODES.............................................................................................124
22.1. ITTING AUX ELECTRODES.......................................................................................................................................124
22.2. SOCKET ASSIGNMENT AND CALIBRATION......................................................................................................................125
23. APPENDIX 3. STANDARD ELECTRODES DETAILED SPECIFICATION...................................................126
24. APPENDIX 4. OPTICAL ELECTRODES DETAILED SPECIFICATION AND FAQS..................................127
24.1. WHAT ARE THE EXCITATION AND DETECTION WAVELENGTHS?..........................................................................................127
24.2. HOW DOES THE RE INED OIL SENSOR WORK?...............................................................................................................127
24.3. I CAN SEE ALGAE IN THE WATER BUT MY SENSOR IS GIVING LOW READINGS. WHY?.............................................................128
24.4. WHAT IS THE RANGE AND RESOLUTION O THE OPTICAL ELECTRODES?...........................................................................128
24.5. WHAT IS THE ACCURACY O THE OPTICAL ELECTRODES?...............................................................................................129
2 . APPENDIX 4. ISE ELECTRODES DETAILED SPECIFICATION...................................................................130
25.1. SPECIAL NOTES CONCERNING ISE ELECTRODES AND PH BU ERS..................................................................................131
26. APPENDIX 7. TROUBLESHOOTING TURBIDITY...........................................................................................132
26.1. LENS AND SLEEVE MAINTENANCE...............................................................................................................................132
26.2. ABOUT TURBIDITY MEASUREMENT..............................................................................................................................133
26.3. PRECAUTIONS DURING USE........................................................................................................................................133
26.4. NEGATIVE TURBIDITY READINGS................................................................................................................................133
26.5. AERATION................................................................................................................................................................134
26.6. RE LECTION.............................................................................................................................................................134
26.7. SENSOR SATURATION.................................................................................................................................................134
26.8. TOP TIPS OR SUCCESS UL MEASUREMENTS USING OPTICAL ELECTRODES............................................................................135
26.9. RE ERENCES.............................................................................................................................................................136
27. APPENDIX 8. FLOW THROUGH CELL..............................................................................................................137
27.1. SPIGOT INSTALLATION...............................................................................................................................................137
27.2. AP-5000 PREPARATION PRIOR TO USE.......................................................................................................................137
27.3. AP-5000 INSTALLATION INTO THE LOWCELL..............................................................................................................138
27.4. LOWCELL OPERATION..............................................................................................................................................138
27.5. CAUTION.................................................................................................................................................................138
27.6. LOWCELL CLEANING................................................................................................................................................138
27.7. LOWCELL TROUBLESHOOTING....................................................................................................................................138
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quaprobe® P-5000 Instruction Manual 10401-00906 Rev M
1. ntroduction
This manual covers the setup, operation, calibration and maintenance of the Aquaprobe®
AP-5000 V4.07+, Aquameter® V6. 0+ Meter, AquaLink V5.00+ PC software and associated
Aquaprobe® accessories. If your Aquaprobe® or Aquameter® are running earlier firmware,
the functionality may differ from that shown in this manual. In this case, contact Aquaread
for an earlier version of this manual or return your equipment for firmware upgrade.
2. What’s in the Box?
The Aquameter® is supplied with the following:
The Aquameter® unit.
Quick release lanyard.
Set of 5 AA Alkaline batteries.
USB Cable for downloading logged data to a PC.
Cross-head screwdriver for fitting the batteries and Probe maintenance.
Getting started card for quick reference.
The AP-5000 is supplied with the following:
Protective Sleeve End Cap (pre fitted).
600mL of RapidCal Solution.
Two part calibration / rinse cup.
One mounting nut (pre-fitted).
To complete your system, you will also need an AP-5000 Extension Cable, which should be
purchased separately.
2.1. The Aquameter® and the Environment
The Aquameter® is designed to be used outdoors and is rated to IP67, that is to say it is
waterproof but it is not designed for submersion. In order to prevent accidental dunking or
loss, a lanyard is supplied.
Please note that the socket on the Aquameter® is only waterproof when the
associated plug is fitted. Without the plug fitted, water can enter the socket. Damage
caused by water ingress through the socket is not covered by your warranty.
You may notice a small hole on the rear of the unit near the top. This is a waterproof vent
for the internal barometric sensor. Do not poke anything in this hole! Doing so will cause
major damage to the vent’s waterproof membrane and invalidate your warranty.
2.2. The AP-5000 and the Environment
The AP-5000 is designed to be fully submerged in water and is rated to IP68, that is to say,
it is rated for continual immersion to a depth of 30 meters, and short term immersion (less
than 1 hours) to 100 meters. During deployment, the AP-5000 can be suspended by the
Extension Cable, but in order to provide a fail-safe for the plug and socket, always use a
mounting bracket and Ty-wrap the Extension Cable to the bracket just above the plug.
2.3. mportant Notes Regarding Galvanic Corrosion
Galvanic corrosion, sometimes also known as bimetallic corrosion, is an electrochemical
process in which one metal corrodes preferentially when it is in contact with a dissimilar
metal in the presence of an electrolyte (such as water). A similar galvanic reaction is
exploited in batteries to generate an electrical voltage.
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quaprobe® P-5000 Instruction Manual 10401-00906 Rev M
When installing an AP-5000, it is important to recognise and avoid the possibility of
creating a situation where galvanic corrosion can occur.
The AP-5000 is made primarily from hard-galvanised marine grade aluminium. All the time
that the aluminium body of the Aquaprobe is insulated from any other type of metal, there
should be no problem with corrosion (unless the Probe is placed in strong acids or alkalis,
for which it is not designed).
Corrosion problems can occur if the Aquaprobe is mounted near to, and connect to a
dissimilar metal, such as stainless steel. Typical examples of this are mounting the Probe
inside a steel pipe or suspending it from a steel dock on a steel wire. In these situations, a
steel-aluminium battery is created that will generate a voltage of around 0.5V and lead to
the corrosion of the metal with the lower potential, in this case the aluminium of the
Aquaprobe.
t is important to avoid creating a situation where galvanic corrosion can occur in
your installation. The easiest way to do this is by electrically insulating the Aquaprobe
from the supporting structure. This can be done by suspending the Aquaprobe on a Mylar
or Nylon rope rather than a conductive steel wire.
If the Aquaprobe is to be mounted inside a steel pipe, wrap a good thickness of electrical
insulation tape around the top and bottom of the Probe to form ‘fenders’ in order to prevent
the Probe making physical contact with the inside of the pipe. When doing this, ensure that
you do not block any of the holes in the Probe’s sleeve, which are essential for water flow
and correct operation of the Probe.
If the above techniques are not possible and a metal-to-metal connection is unavoidable, a
sacrificial anode must be attached to the Aquaprobe. Sacrificial anodes are manufactured
from zinc and are designed to slide onto the threaded connector section of the Aquaprobe
and to be held on by the mounting nut. Zinc is much more active than aluminium and will
therefore corrode first leaving the Aquaprobe undamaged.
Sacrificial anodes are, as the name suggest, sacrificial, so will need replacing periodically.
Sacrificial anodes are available for all models of Aquaprobes. Please contact Aquaread Ltd
for more details.
2.4. About the Probe Sleeve and Sleeve End Cap
The AP-5000 is constructed with an aluminium sleeve surrounding the delicate sensing
electrodes. The Sleeve can be easily removed by unscrewing to allow cleaning of the
individual electrodes, however, the Probe sleeve forms an integral, working part of the
Probe’s measurement system, and MUST be fitted for correct operation.
Probe sleeves are also specifically matched to the Probe with which they were supplied. f
you have more than one AP-5000, be sure not to mix the sleeves up between the
Probes. Doing so may seriously affect the performance of the EC electrode.
All Aquaread® Optical Electrodes are incredibly sensitive. For example, the Turbidity
electrode is capable of measuring between 0 and 3000NTU with an internal resolution of
greater than 0.1NTU. This means that the electrode is able to detect changes in turbidity
that are less than 0.003% of the full range! The other optical electrodes have a similar level
of sensitivity.
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quaprobe® P-5000 Instruction Manual 10401-00906 Rev M
It follows, therefore, that in order to provide stable, repeatable readings, the environment in
which the measurements are made must be completely stable and repeatable. For this
reason, the AP-5000 is constructed with a matt black aluminium sleeve and end cap that
enclose the sensing electrodes and provide a closed, constant condition, non reflective
measurement chamber.
n order to obtain consistent results, the measurement chamber created within the
Aquaprobe® must remain physically constant during both calibration and
measurement. t is therefore essential that both the sleeve and sleeve end cap are
fitted during calibration and operation of all types of optical electrodes.
If an optical electrode is calibrated under one set of conditions then used to measure under
another set of conditions, the readings will naturally be erroneous, especially at low
concentrations. A perfect example of this is calibrating with the end cap removed then
measuring with the end cap fitted (or vice-versa). By changing the physical characteristics
of the measurement chamber, you also change the calibration and response of the
electrode.
Another particular problem when trying to measure very low
concentrations is air in the form of both visible and microscopic
bubbles. These act like tiny prisms and can refract and reflect both the
excitation light and the return signal being measured. The photograph
to the right was taken in a calibration tube after fresh water was
poured in. The bubbles are clearly visible in the light beam.
2.5. Top Tips for successful measurements using optical electrodes
➢Always keep the measurement chamber and electrode lenses clean.
➢Always fit the sleeve and end cap during both calibration and measurement.
➢Always allow the readings to settle completely during both calibration and
measurement.
➢Always try to eliminate air bubbles by agitating the Probe after insertion both during
calibration and measurement.
➢Always calibrate and zero the electrode as close to your sample temperature as
possible. This is especially important with the Ref-Oil electrode.
➢Always zero the optical electrodes just prior to use in clean water (bottled still
mineral water is ideal) then deploy without disturbing the measurement chamber.
This is especially important when using the Turbidity electrode.
© 2019 quaread® Ltd. www.aquaread.com Page 10 of 138