GR Scientific Aquamax KF Portable, Aquamax KF ECO User Manual

Aquamax KF

UK Distribution by: IMA Ltd, Parkwell House, Otley Road, Guiseley, West Yorkshire, LS20 8BH, England
Tel: +44(0)1943 878877 Email: info@ima.co.uk Website: www.ima.co.uk
Portable”
Aquamax KF Portable v.13.08
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CONTENTS

Introduction …………………………………………………….……… Page 3
Principle of Measurement ……………………………………………… Page 4
Technical Specifications ..……………………………………………… Page 5
Unpacking & Parts List ……………………………………………… Page 6
Titration Cell Assembly Instructions …………………………………… Page 7-8
OPS Workstation ……………………………………………………….. Page 9
Filling & Changing Reagents ………………………………………….. Page 10
Front & Rear Panel Description ………..……………………………… Page 11
Setting Time & Date …………………………………………………… Page 12
Connection & Start Up Procedure ……………………………………… Page 13
Programming A Method ……………………………………………….. Page 14 – 20
Water Standard Test …………………………………………………… Page 21
Example Methods & Applications……………………………………… Page 22 - 24
How To Run A Test………………Examples V/SG & W/w…………… Page 25 - 26 Printer …………………………… Loading the paper…………………. Page 27
Example Print Out…………………. Page 28
Drift Compensation ……………………………….………………… …. Page 29
Overtitration ……………………………………………………………. Page 29
Reagent Life ……………………………………………………………. Page 29
Cleaning the Glassware ………………………………………………… Page 30
Troubleshooting ……………………………………………………….. Page 31
Warranty ……………………………………………………………….. Page 31
Other Products ………………………………………………………….. Page 32 - 34
Aquamax KF Portable v.13.08
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G.R. Scientific Ltd.

Tel: +44 1525 404747 Fax: +44 1525 404848
E-mail: info@grscientific.com Website: www.grscientific.com
Building 69 Building 69 Wrest Park Wrest Park Silsoe Silsoe Bedfordshire Bedfordshire MK45 4HS MK45 4HS United Kingdom United Kingdom
Key personnel at G.R. Scientific are recognised experts in coulometric Karl Fischer titration technology and electrochemisty. They have designed and manufactured coulometric titrators since the early 1980’s and are widely regarded as some of the leading specialists in this technique.
Designed primarily for the oil and power industries, the Aquamax KF Portable is the only model on the market with a carry handle attached directly to the unit. It also features a protective stainless steel cage, built-in printer and single button operation for water standards analysis, using either distilled water or water pellets. Specially designed Low Drift Cell twin port glassware avoids the need for Teflon sleeves or grease on the electrodes to seal titration cell from moisture invasion. Also available is a carry case for transportation in the field and an OPS Workstation which includes everything the user needs, such as syringes, standards, reagents, etc. all in one footprint for ultimate efficiency.
Aquamax KF Formula reagents have been specially formulated for use with Aquamax KF titrators. Formula A anode reagent is suitable for most routine applications and is especially useful for water content determination of oil samples, e.g. transformer oils, crude oils, etc. This anode reagent is supplied in “single shot” bottles of 100ml – No measuring of volumes required – No mixing of other solvents required. Cathode reagent Formula C is supplied in “single shot” 5ml vials which have “safety snappers” pre-fitted thereby reducing risk to the operator.
Where appropriate G.R. Scientific products include traceable calibration certificates and are backed up by a three year parts and labour warranty. These titrators are used by many leading companies in the oil, petrochemical, gas, pharmaceutical, biotechnology, automotive and power generation industries.
For a list of users, typical applications or details of our network of international distributors, please visit our website, www.grscientific.com Tel: +44 1525 404747. Fax: +44 1525 404848. E-mail: info@grscientific.com
To obtain the full benefits that this instrument can offer it is recommended that you read this user manual before assembling the unit.
Cou-Lo and Aquamax KF are registered trade marks of G. R. Scientific Ltd. “ACE” control system is p atented technique owned by G.R. Scientific Ltd.
(All Aquamax KF power supplies are double insulated units that do not need an earth (ground) connection. These units are sealed and conform to CSA(LR84459), UL listings and CE requirements. Aquamax KF titrators only require a low voltage 15V input to the electronic / control circuitry. The moulded plastic casing of the instrument also provides additional insulation.)
Correspondence Address: Delivery Address:

INTRODUCTION

, or contact G.R. Scientific Ltd. on:-
Aquamax KF Portable v.13.08
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PRINCIPLE OF MEASUREMENT

Karl Fischer titration is simply a means to measure water content of samples. Modern instruments, such as the Aquamax KF, use the coulometric principle, whereby the water present in the sample is coulometrically titrated to a predefined end point at which there is a minute excess of free iodine present. Stoichiometrically, 1 mole of water will react with 1 mole of iodine, so that 1 milligram of water is equivalent to 1071 coulombs of electricity. Combining the coulometric technique with Karl Fischer titration, Aquamax KF titrators determine the water content of the sample by measuring the amount of electrolysis current necessary to produce the required iodine. This is an absolute technique which does not require calibration of the reagents. For further information, visit www.grscientific.com
, and download the
PDF article titled “Recent Advances”.
2
SO
I
2+SO2+3C5H5N+H2O → 2C5H5N.HI+C5H5 N
O
SO C
5H5N +CH3OH → C5 H5 N
2 SO4CH3
O H
2I - 2e I
2
Using the latest pulse current technology and our patented “ACE” control system, (Patent No.GB2370641), the Aquamax KF automatically selects the appropriate titration speed dependent upon the amount of water present in the sample. The titration speed is reduced as the end point is approached, and when the titration is completed the instrument prints out and displays the results. For a more detailed explanation of the technique, and a comparison with volumetric Karl Fischer titration, please visit our website, www.grscientific.com
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Technical Specifications
Aquamax KF Portable
Titration Method:
Coulometric Karl Fischer titra tion
Electrolysis Control:
Patented “ACE” control system GB2370641
Titration vessel:
Low Drift Cell design, no grease or PTFE sleeves required
End Point Detection:
AC polarisation
End point indication:
Visual display/print out/acoustic beep
Measuring range:
Possible: 1µg – 200 mg water. Typical: 1µg - 10mg water
Moisture range:
1ppm - 100% water
Max. sensitivity:
0.1µg
Max. titration speed:
2.24 mg per minute
Max. current:
400 ma
Drift compensation:
Automatically controlled
Precision:
10-100µg ± 3µg, 100µg-1mg ±3µg, above 1mg ±0.3%
Start delay time:
0-30 minutes, user selectable
End delay time:
0-30 minutes, user selectable
Calculation modes:
Weight/weight, (W/w)
(user programmable)
Weight/dilution ratio, (W/K)
Volume/density, (V/SG)
Volume/volume, (V/v)
Display format:
µg, mg/kg, ppm, %
Print format:
µg, mg/kg, ppm, %
Statistics:
max, mean, min values up to 99 runs
Method storage:
10 user programmable methods stored plus multi method via pc link
Sample ID number:
User programmable
Stirrer speed:
Microprocessor controlled
Languages:
Multi languages – user selectable
Calendar/clock:
Analysis time & date print out
Battery low indicator:
Display & print out indication
Data outputs:
USB and RS232 ports
Removable Data storage:
Flash drive (memory stick)
Data Entry:
15 key touchpad
Display:
40 character alphanumeric backlit LCD
Printer:
42 character high speed thermal printer
Protection cage:
Power supply:
Stainless steel
90-264V AC, 47-63 Hz. 12V DC car adapter/internal battery
Dimensions:
250 x 245 x 300 mm (incl. cage)
Weight:
4 kg
Carry handl e:
Built in
Aquamax KF Portable v.13.08
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UNPACKING & PARTS LIST
Inside the shipping carton you will find a plastic case which contains the glassware and accessories pack and the user manual. The Aquamax KF titrator is located underneath the glassware case (or inside the optional carry case if ordered). The mains power pack and in-car adapter are inside the carry case lid compartment. Remove all of these items and check that they have arrived undamaged. The built-in battery may lose some charge if stored for prolonged period. We advise connecting the Aquamax KF Portable to mains power supply for 12 hours before first switching the power on.
After unpacking your Aquamax KF Portable check that the glassware/accessories pack contains:­ Item Description Low Drift Cell 1 pce Titration Vessel twin port 503053 1 pce Detector electrode LDC 503054 1 pce Generator electrode LDC 503055 1 pce Desiccant tube & cap 503058 1 pack Injection septa (10) 503059 1 pce 1ml Gas Tight syringe 503063 1 pce Luer needle Pair (17 & 19 gauge) 503067 1 bottle Molecular sieve 503070 1 pce Stirrer bar 503071 1 pce Funnel 503072 1 pce Thermal paper roll 503073
ACCESSORIES
1 pce Mains power pack 401607 1 pce In Car Adapter 401421
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Position titration vessel on Aquamax KF
The glass joints do not require PTFE
seal the vessel from ingress of moisture from the atmosphere and are easily
Position electrodes on titration vessel. It is not necessary to overtighten these screw
Connect leads to generator and detector electrodes then connect the leads to the
Place stirrer bar inside titration vessel
Fit injection septa into plastic screw cap The assembled titration cell is now ready to be charged with reagents prior to use. Please be sure to

AQUAMAX KF TITRATION CELL

STEP BY STEP ASSEMBLY INSTRUCTIONS

(SHOWN WITHOUT PROTECTIVE CAGE OR CARRY HANDLE)
titrator
sleeves or grease. The special screw fittings
released, even after several weeks.
joints.
assemble correctly every time the cell is cleaned or re-filled. It is recommended that the titrator is NOT switched on until after the titration vessel has been charged with reagents. This will avoid damage being caused to the electrodes by the stirrer bar. Avoid twisting the electrode leads otherwise they may become damaged.
titrator. Generator electrode lead connects to socket marked detector electrode lead connects to socket marked
connectors and locate onto injection ports of titration vessel.
Fill locate on top of generator electrode
“DETECTOR”
drying tube with molecular sieve and
“GENERATOR”
Aquamax KF Portable v.13.08
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AQUAMAX KF TITRATION CELL

Aquamax KF Portable v.13.08
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OPS WORKSTATION
The Aquamax KF Portable can also be supplied complete with an OPS Workstation. A sturdy outer case secures and enables transportation of the titrator complete with spare anode reagent bottles, cathode reagent vials, distilled water and 10 microlitre syringe of water standard test, pellet sampler and water standard pellets, 1.0ml & 5.0ml gas tight syringes and luer needles, power pack, in-car adapter and Results Manager USB flash drive for storage of all results whilst in the field.
Pellet sampler Power pack &
Water standard pellet s in-car adapter
10µl, 1.0ml &
5.0ml syringes
Results Manager Syringe USB flash drive tray
Above the flash drive are two bottles anode reagent,
two cathode reagent vials and distilled water bottle
Aquamax KF Portable v.13.08
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Although reagents can be poured into the titration vessel whilst
electrodes are removed from the instrument whilst this
Remove the drying tube and injection septa. Using the funnel
Also using the funnel, charge the inner chamber of the
Reconnect the drying tube and injection septa so that the
Locate the complete titration vessel onto the titrator and
The colours of anode and cathode reagent are only an
FILLING & CHANGING REAGENTS
The Aquamax KF Portable has been designed to operate with all major coulometric Karl Fischer reagents, however optimum performance can be obtained by using Aquamax KF Formula reagents which have been specifically formulated for use with these instruments. For most routine applications 100ml of Formula “A” (anode reagent) and 5ml of Formula “C” (cathode reagent) are used. When analysing Transformer oils, Crude oils and other petroleum products Formula “A” is especially suited as it contains other solvents to improve sample miscibility and solubility.
(When analysing samples of Ketones, amines or others which may interfere with the reaction it is advisa ble to use specialised reagents which can be obtained from various suppliers).
it is located on the titrator, we recommend that the vessel and
procedure is performed to avoid reagent spillage onto the instrument casing.
wiped off immediately to avoid damage or staining).
(Any spillage onto the instrument casing should be
supplied, charge the titration vessel upto the lower line with Formula “A” reagent. For your convenience these reagents are supplied in “single shot” bottles which contain 100ml so it is not necessary to measure any volumes – simply pour in the complete bottle
generator electrode with Formula “C” reagent which are supplied in “single shot” 5 ml vials which havce “safety snappers” pre-fitted thereby reducing risk to the operator.
(It is not necessary to clean the funnel between reagents.)
titration vessel is sealed from ingress of atmospheric moisture.
connect the electrode leads onto the appropriate sockets
illustration to show that there are two different liquids. These are not necessarily the exact colours of the reagents being used.
The Aqua on.
Cathode Reagent Anode Reagent
max KF Portable titrator is now ready to be switched
Aquamax KF Portable v.13.08
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Power Jack:- Nominal 18v DC 45w. Supply Input
DESCRIPTION
Front Panel
Printer Display panel
Keypad Stirrer speed
Rear Panel
Fuse:- 3 ,15amp T type Time delay RS232:- Standard 4 wire RS232 Input / Output
Port.
USB-B:- Direct cable to PC / Results Manager
Port.
USB-A:- Removable Flash Memory Store Port.
RS232 Port. – For updating titrator software, connecting to other equipment for remote controlling (software specific protocols to be provided).
USB-B Port. – For connecting directly to PC to export data to Results Manager and enable results to be saved on files for future reference. (See Results Manager User Manual section)
USB-A Port. – For exporting results data to a Removable Flash Drive (memory stick), when running sample tests i n the field or remote locations, and subsequent transfer to PC at a later date for loading onto Results Manager files.
To use the memory store, insert Flash Drive into USB port A, titrator will see it and a symbol
will appear on the display.
The symbol will appear blacked out while the drive is being written to and then as The drive should only be removed when in the idle mode.
To read data saved on drive insert it into PC USB port. Start Results Manager, load selected file and then save in the format you require, see Results Manager user manual for full instructio ns.
There is a separate power ON/OFF switch on the rear panel. Whilst connected to mains power supply, a trickle charge is continuously applied to the battery. It is therefore recommended that the instrument is used from mains power supply whenever possible so that the battery is kept fully charged. Maximum battery operating time is 8 hours continuous use. This may be reduced if repeated high water contents are being determined or if the printer is being continually used.
when idle.
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