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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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.
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3. Battery nstallation and Care
The Aquameter® requires five AA size batteries. To install the batteries, loosen the two
screws on the centreline of the rear of the meter and remove the battery compartment lid.
Following the battery polarity markings inside the battery compartment, insert five AA cells
then replace the compartment lid and tighten the screws.
3.1. Choice of Battery Type
Alkaline or rechargeable batteries may be used, but never mix battery types in the meter. If
you choose to use rechargeable batteries, we recommend nergizer 500mAh (or greater)
Nickel-Metal Hydride cells, which are widely available. If the Meter is to be out of use for a
long period, remove the batteries to prevent damage due to possible leakage.
3.2. Battery Life
A set of fresh alkaline cells will give over 18 hours use in the AM- 00 GPS Aquameter®. A
fully charged set of 500mAh NiMH cells will give up to 40 hours use in the AM- 00 GPS
Aquameter®. Please be aware however that alkaline battery capacities are extremely
temperature dependant. The figures quoted throughout this manual for battery life assume
a temperature of 1°C. Battery life can be significantly shorter (by up to 50%) at lower
temperatures.
3.3. Battery Charging
During the charging process, batteries generate heat and vent gasses, and must never be
charged inside a sealed unit. Because the Aquameter® is a sealed unit, we do not allow
charging in-situ. Batteries must be removed and charged with a suitable battery charger
outside the Meter. We recommend the use of one of the nergizer range of NiMH chargers.
3.4. Battery Condition con
On all the main Aquameter® screens, a battery condition icon is displayed in the top left
corner. The icon shows full when the batteries are fresh, and gradually empties as the
batteries are used. When the batteries need replacing, the empty battery icon will flash on
and off. If you ignore this, the Meter will automatically switch itself off when the battery
voltage becomes too low for reliable operation.
When using rechargeable batteries, the battery icon will not show completely full, even with
freshly charged cells. This is due to the fact that rechargeable batteries are only rated at
1. V per cell compared to 1.5V per cell for alkaline batteries. This indication does not affect
battery life. The icon will simply sit at the ¾ full mark for a longer period of time.
3.5. Battery Saver Functions
The Aquameter® is designed to switch off automatically if you do not touch any of the keys
for 30 minutes. The only exception to this is if you have activated the Automatic Data
Logging feature. In this case, the Meter will continue to operate until either the memory is
full or the batteries go flat.
The display on the Aquameter® incorporates a white backlight to improve visibility in low-
light conditions. As on a mobile phone, the backlight switches on each time a key is
pressed, and stays on at full brightness for 15 seconds. After 15 seconds, the backlight will
fade to half brightness. After a further 15 seconds the backlight will switch off.
During normal operation, if you want to activate the backlight without changing the Meter
function, simply press the ESC key.
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4. Overview of the Operating System
The operating firmware in the Aquameter® has been designed for simple, intuitive use.
Similarly, a great deal of development work has been put into simplifying and automating
the calibration procedures in the Aquameter® in order to allow normal field operatives (as
opposed to trained lab technicians) to achieve quick and accurate results.
If you are used to operating a mobile phone or programming audio/visual equipment using
a remote control, you should feel at home with the familiar up/down left/right arrow shaped
navigation keys and central OK key.
The tree structure behind the MENU key should also be very familiar. Each item on the
menu leads to a sub menu and then either onto further menus or final choices. Each
branch of the menu system is navigated using the arrow keys. At each point, selections can
be made by either pressing the OK key or the right arrow key.
To reverse along a branch of the menu system, use the ESC (escape) key or left arrow
key. After a short time, you should be able to navigate around the entire menu system at
speed using just the four arrow keys. If, at any time, you leave the Meter in one of the sub-
menu screens, it will automatically back out to the main operating screen after 15 seconds.
4.1. nitial Switch On, Language and Clock Setup
To switch the meter on or off, briefly press the red key. Do not hold it down. The meter
contains a clock and is capable of operating in several different languages. When switching
on for the first time, you must select an operating language and set the clock. The first
screen you will see is the Language Selection Screen.
 English Italiano
Francais Portugues
Deutsch Malaysia
Espanol Indonesia
To select a language, move the cursor around the list using the arrow keys. To enter your
selection, press the OK key or the right arrow key.
The next screen to be displayed is the Time & Date Setting Screen.
Time & Date
 Time:15:46: 7
Date:15/Jun/17
To set the time and date, use the arrow keys to move the cursor around the screen. Use
the up and down arrow keys to adjust values. When the time and date are correct, press
the OK key. Don’t worry if you make a mistake first time round. You can easily get back to
these screens later through the MENU key.
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5. Connecting an AP-5000
The AP-5000 is designed to connect to the Aquameter® using an AP-5000 Extension
Cable. The AP-5000 Extension Cable features high-pressure metal connectors, which
incorporate several O-ring seals at the Probe end. Prior to first connection, the seals must
be lubricated using the silicone grease supplied.
Apply a generous smear of grease to the O-rings where indicated above. Be careful not to
get any grease inside the connector near the gold contacts. A small smear of grease
should also be applied to the thread on the Probe to allow easy tightening of the collar.
To connect the Extension Cable to the AP-5000, align the coloured dot on the AP-5000
with the ◄AQUAREAD logo on the plug body, then press the plug into the socket and
tighten the retaining collar fully. Once the AP-5000 has been connected to the Extension
Cable, the Aquameter® can be connected.
Always ensure the Aquameter® is switched off prior to connecting or disconnecting an AP-
5000. Align the ◄AQUAREAD logo on the plug body with the red on/off switch on the
Aquameter®, then press the plug into the socket and tighten the retaining collar.
Once the AP-5000 is connected to the Aquameter®, switch the Meter on by pressing the
red on/off switch. The Aquameter® should detect the Probe and start displaying readings.
5.1. AP-5000 Deployment (See also section 2.3)
If you are permanently deploying the AP-5000, the optional mounting bracket (Part No: AP-
BKT-5000) should be used. During deployment, the AP-5000 can be suspended by the
Extension Cable, but in order to provide strain relief for the plug and socket, always Ty-
wrap the Extension Cable to the bracket just above the plug.
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6. Taking Measurements
The AP-5000 includes a pH/ORP electrode, which is kept moist by a storage cap. Remove
the storage cap by pulling the red lanyard marked ‘Remove Before Use / Replace After
Use’ straight down. Do not use a twisting motion to remove or replace the cap as this
can unscrew the electrode from the Probe body. Rinse any salty deposits from the
pH/ORP electrode with fresh water.
Fit the protective Sleeve End Cap into the end of the Probe sleeve. Switch the Aquameter ®
on and immerse the AP-5000 in the sample water, making sure that the water level covers
the minimum immersion depth groove halfway up the Probe sleeve.
T P: Occasional application of a smear of silicone grease or similar lubricant to the
protective Sleeve End Cap thread will make fitting and removal of the Cap easier.
If the AP-5000 is connected correctly, the meter will read the Probe’s serial number and
model number, then will automatically configure itself to display only those readings the
current AP-5000 is capable of taking. Initial Probe readings will be displayed on the meter’s
screen along with the current GPS status. The initial data screen for the GPS Aquameter®
in conjunction with the AP-5000 is shown below.
 TEMP:018.5°C 
ORP:0415.2 mV 
pH:06.48 
 GPS:Acquiring 
Left/right arrows at the bottom corners of the screen indicate further data screens are
available. To access these screens, simply press either the left or right arrow keys. Any
value that is out of range or unavailable will be displayed as dashes. The other four screens
available with the standard AM- 00/AP-5000 combination are shown below.
 DO:098.7% 
EC:6541µS/cm 
TDS: 271mg/L 
 GPS: D Pos 
 SAL:0 .57 PSU 
SSG:01. σt 

 GPS: D Pos 
 BARO:101 mb
DEPTH:01.75m
Hit [OK] to zero
 GPS: D Pos 
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 Lat:N51 °21.498
Long:E001°24. 2
Alt:00050M 101 mb
 Sats in use:09 
6.1. What Does t All Mean?
The screens above show the full default range of readings for the AM- 00/AP-5000
combination. If you are using a different Meter/Probe combination, you may have fewer
screens to choose from and the readings may appear in a different order to facilitate logical
screen layouts. If an asterisk (*) character is flashing just below the battery symbol, this
indicates that Auto Data Logging is switched on. See Automatic Data Logging in section 8.
The table below explains the readings.
Prefix Meaning Units
TEMP Probe Temperature C or F*
pH pH (Acidity/Alkalinity) pH or pHmV*
ORP Oxidation Reduction Potential mV
GPS GPS Status See section 6.5
DO Dissolved Oxygen %Sat & mg/L
EC Electrical Conductivity µS/cm or mS/cm†
TDS Total Dissolved Solids mg/L or g/l†
SAL Salinity PSU or ppt*
SSG Sea Water Specific Gravity σt
BARO Barometric Pressure mb or mmHg*
DEPTH Depth above / below zero datum Meters / Feet*
Lat Latitude Degrees & Mins
Long Longitude Degrees & Mins
Alt Altitude above Sea Level Meters or Feet*
Items in the Units column marked with an asterisk (*) can be selected as alternative units of
measurement in the Settings Menu (see section 9). Items in the Units column marked with
a dagger (†) are auto-ranging, i.e. when the values become too large to display, the units of
measurement automatically re-scale.
The EC field can be replaced by its reciprocal value, RES (Resistivity), if selected in the
Settings Menu. If selected, readings will be displayed in either Ω▪cm or KΩ▪cm, depending
on the value. See section 9 for more details.
6.2. Trend ndication
To the right of each reading, (except position, BARO and Depth), a trend indication is
given. This consists of either an upwards facing arrow (which indicates the numeric value of
the reading is rising), a downwards facing arrow (which indicates the numeric value of the
reading is falling) or a two-headed arrow, which indicates a stable reading. Readings are
judged to be stable when the variation over a ten second period drops below 1%.
6.3. Global Stability ndication
In addition to the individual trend indications, there is a global stability indication, which is
displayed when all readings are stable. This takes the form of a flashing double headed
arrow which is displayed at the start of the third line of the display.
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When taking a set of readings, gently stir the Probe, or raise and lower it in the sample (if
there is no natural water flow) until the global stability icon appears. The initial display of the
global stability icon will be accompanied by a double beep. When this occurs, all values are
stable and ready for reading or saving.
6.4. Temperature Compensation
The electrochemical properties of all solutions change with the solution's temperature. In
addition, the response of electrochemical measuring electrodes change with temperature. It
is a fundamental, practical requirement in the field of water quality monitoring that test
measurements taken at different temperatures can be compared.
In order to facilitate this, the AP-5000 automatically applies corrections for temperature
wherever required.
During three point calibration of the ISE electrodes, the variation in response of the
electrodes due to temperature is automatically calculated. During measurement, the
variation in response of the electrodes due to temperature is automatically compensated
for.
During calibration of the EC electrode, the variation in the calibration buffer solution due to
temperature is automatically corrected for. During measurement of EC, the readings can be
displayed without any temperature correction, corrected to 0C, or corrected to 5C. See
section 9 for more details.
During calibration of the DO electrode, variations due to temperature and air pressure are
automatically compensated for. During the measurement of DO, temperature, air pressure
and salinity are automatically compensated for.
During calibration of the ORP electrode, the variation in the calibration buffer solution due
to temperature is automatically corrected for. During measurement of ORP however,
temperature corrections are not applied as the correction factors are system and chemical
dependent and are not easily determined.
ORP potential measurements are mostly made to follow reactions rather than for their own
sake. The completion of an ORP reaction is normally accompanied by a sharp change in
the ORP millivolts reading. This change is usually much larger than the errors induced by
temperature side effects.
During calibration of the optical electrodes, variations in the calibration solutions due to
temperature are automatically compensated for. During the measurement, temperature is
automatically compensated for.
During calibration of the pH electrode, the small variation in the calibration buffer solutions
due to temperature is not compensated for due to the differences in thermal coefficient
between various buffer manufacturers. For this reason, the three pH points should be
calibrated as close to the buffer manufacturer's specified temperature as possible (usually
0ºC or 5ºC) although a variation of up to +/-10ºC makes very little difference in reality.
During pH measurement, temperature variation is automatically compensated for.
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6.5. GPS Reception
The GPS version of the Aquameter® (AM- 00) contains a built-in GPS/GLONAS receiver
and antenna. The antenna is situated at the top of the case, just behind the AQUAREAD
Logo. For optimum signal reception, the antenna must be able to ‘see’ a reasonably large
amount of the sky. The GPS receiver will not work indoors or when shielded from the
sky by any solid structure.
After switch-on, the GPS receiver will automatically start to search for satellites. During this
phase, the message GPS:Acquiring will be shown on the bottom line of all the screens. As
soon as three satellites are acquired, two dimensional position (no altitude) will be
calculated and the message GPS:2D POS will be shown on the bottom line of the screens.
Once a fourth satellite is acquired, altitude will be calculated and GPS:3D POS will be
shown on the bottom line of the screens. With a good view of the sky, position should be
calculated within ninety seconds of switch-on. To see your geographic position and the
number of satellites in use, use the left or right arrow keys to scroll to the Position page.
If you switch the meter on indoors, then carry it outside after several minutes, there may be
a considerable delay in acquiring satellites. In this case, switch the meter off, then back on
again to reset the acquisition process.
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7. Depth Measurement
Depth is measured in the AP-5000 by a pressure sensor mounted inside the body of the
probe. The datum on the probe for depth measurement is the top row of holes on the probe
sleeve.
Depth is calculated by subtracting the barometric pressure being measured in the
Aquameter® from the water pressure being measured in the AP-5000. The pressure
differential, once corrected for temperature and salinity (water density), is directly
proportional to depth.
The depth measurement system uses the EC sensor to detect when the probe has been
placed in water. All the time the probe is measuring an EC of zero, the depth will read zero.
As soon as an EC value is detected, the meter will start to calculate depth. For this
reason, it is important to ensure the Probe is connected to the Meter and switched
on prior to submerging the probe in water.
7.1. Taking Depth Measurements
Connect the Probe to the Meter and switch on prior to submerging the probe in water.
Select the Baro/Depth screen as illustrated below. The depth should be reading zero.
 BARO:101 mb
DEPTH:00.00m
Hit [OK] to zero
 GPS: D Pos 
If the depth is not reading zero (this is possible if the probe is wet and a low EC reading is
registering), press the OK key. You will be asked to confirm by pressing OK again.
Slowly lower the probe into the water. As soon as the depth value starts to register, you can
lower the probe more quickly.
7.2. Differential Depth Measurement
If you want to measure changes in depth, it may be more convenient to zero the depth
measurement once the probe has been submerged.
To do this, press the OK key whilst displaying depth, then confirm. The unit will now read
positive or negative changes in depth from the current depth (zero datum).
If the values are positive, the water level has increased from the zero datum. If the values
are negative, the water level has decreased.
Using the Automatic Data Logging feature detailed in the following section, it is possible to
monitor water levels over a period of time for later recall.
7.3. Depth Calibration
The depth sensor is automatically re-zeroed each time the DO 100% point is calibrated in
free air. The depth sensor is factory calibrated at two temperatures and two pressures and
vary rarely needs to be recalibrated during the lifetime of the Probe. If two point depth
calibration is required, it must be done using an AP-PC KIT and associated AquaCal PC
Software. Full depth calibration can not be performed using an Aquameter®.
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8. Memory Mode
8.1. Manually Saving Readings
When you are happy that the readings are stable (see section 6.3: Global Stability
Indication), press the M+ key to snapshot the readings along with the time, date, GLP
(calibration) data and position (GPS models only).
As each reading is saved, a numeric memory location ‘Tag’ will be briefly displayed which
you can note down. This Tag can be used to identify readings at a later date, both on the
Aquameter® and when using AquaLink software.
8.2. Recalling and Viewing Saved Readings
To recall your readings, press the MR key. On entering Memory Recall mode, the most
recent Tag and set of readings are displayed first along with the date and time the readings
were taken shown on the bottom line of the screen.
M TEMP:012.5°C M
ORP:0415.2mV
pH:08.21
02/Apr/17 15:04:01
During Memory Recall, an ‘M’ is flashed in the top left and right corners of the screen
alternatively with an up/down arrow and a left/right arrow. This is to indicate that the Meter
is in Memory Recall mode and that other screens can be accessed using the arrow keys.
To see earlier readings, press the up arrow key. Just before each set of readings is
displayed, the Tag will be briefly displayed. To view all the parameters within one set of
readings, use the left/right arrow keys as described earlier. To exit Memory Recall mode,
press the ESC key. If no key is pressed for 30 seconds, Memory Recall mode will be
automatically cancelled.
8.3. Recalling GLP Data
Each time a set of readings is added to memory, the date of the last successful calibration
of each electrode is also appended. This is called GLP (Good Laboratory Practice) Data. In
addition to the date of the last successful EC calibration, the Calibration Standard value at
which the EC was calibrated is also displayed (see section 14: Calibrating EC for further
details).
To view the last successful calibration date for each electrode for any particular stored
reading, enter Memory Recall mode, scroll to the reading you are interested in using the
up/down keys, then press the MENU key. The screen below will be displayed.
GLP DATA
>pH/REDOX(ORP)
DO/EC
Aux Electrodes
Using the up/down keys, select the electrode you are interested in, then press either the
OK key or the right arrow key. If, for instance, you selected pH/REDOX(ORP), the screen
below would be displayed.
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PH 7.00[ 1/Jan/17]
PH 4.01[07/Feb/17]
PH 10.0[07/Feb/17]
ORP+250[09/Feb/17]
This tells you that the last successful calibration, prior to the recorded reading being
taken, was January 31st for the pH 7.00 point, February 7th for the pH 4.01 & pH10 points
and February 9th for ORP. If the date field is dashed (==/===/==), this means the electrode
was either not fitted or had never been calibrated.
Pushing the left or right arrow keys will toggle this screen with the calibration report screen.
PH7 Offset:+01.2mV
PH4 Slope:56.8mV/pH
PH10 Slope:56. mV/pH
ORP Offset:-02.6mV
The calibration report screen displays the calibration report values from the last calibration.
To exit this screen press the ESC key.
8.4. Clearing the Memory
The memory within the Aquameter® is capable of storing 10,000 full sets of readings.
To clear the entire memory, switch the Meter off, hold down the M+ key, then switch the
Meter back on. A screen will be displayed asking you to confirm your request. Press OK to
clear the memory or ESC to cancel and return to normal operation.
8.5. Automatic Data Logging
If you want to save readings on a regular basis, in order, say, to check water quality at a
certain location over a period of time, you can set the Meter to record readings
automatically.
Readings can be logged for short periods with the Meter permanently displaying readings,
or for much longer periods in a Low Power Mode, where the Meter switches itself off
between readings in order to extent the battery life.
Please note: Low Power Logging Mode is only available on Meters running version 4.54
firmware and above.
To activate Automatic Logging, press the MENU key. The Main Menu screen will be
displayed. Please note, the first item on the menu, 'Clean Probe', will only be active if an
Aquaprobe® AP-7000 (which has an automatic cleaning system) is connected.
 Clean Probe
Auto Data Logging
Calibration
Setup & Install
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