Section Title

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Advanced Cap MeterUser Manual

WWW.TRUESCIENCE.CO.UK

Android Phone or Tablet

Logging & Alarms

View 6 cap readings at once

Step by step calibration

Section Title

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TRUEscience

We would like to thank you for trusting TRUEscience with your measurements.This full user manual willtake you through all of the advanced features available on the TRUEscience app, but remember you canalso learn more about the system in other ways;

Videos - available at www.truescience.co.uk/videosQuickGuide - the shorter user guide delivered with your TRUEscience cap, or available on our websiteWeb chat - touch the ? icon in the app to access in-app help including our live web chat service. You canalso reach the same web chat through our website on the Support page.Our Blog - here we post short articles to answer common queries or share our favourite tips and tricks fortestingPhone or email - our UK based team are on had to help if you have any questions at all, from 0900 to1730 GMT

Email: info@truescience.co.ukPhone: 01954 233 144

Contents

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Specifications 4Diagram of Parts 5Android Hints and Tips 6Turn on Bluetooth 10Connect to WiFi 11Switching on & Multi-Cap View 12Meter View 14pH Calibration 17ISE Calibration 23Dissolved Oxygen Calibration 28Dissolved Oxygen Calibration 29Redox ORP Calibration 30QC Check 31Logging 37Jobs 41Alarms 47User Accounts 51Inventory 55Shop and Basket 61Everyday Care 63Troubleshooting 65Jargon Buster 71Spares and Accessories 73

Specifications

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Cap Specifications; Dimensions (L x W x D): 218 x 48 x 24 mm Weight: 91.5 g Operating temperature: 0 - 55 ºC Battery: 1/2 AA size Lithium Thionyl Chrlodie, 3.6V, 1200 mA Battery life: 1 year in normal useSpecifications; Range: 0 - 14 pH, 0-1000 mV, 0-100% Oxygen, Resolution: 0.01 pH, ± 0.1 mV1 Accuracy: ± 0.002 pH, ± 0.1mV, ±1% Oxygen Calibration points: Up to 5 possibleTemperature Specifications; Range of ATC: 0 - 100 ºC (automatic temperature compensation) Range: permitted testing temperatures vary with electrode - consult the electrode specifications Resolution: 0.1 ºC Accuracy: ± 0.5 ºCApp Specifications; Stored values: Up to 10,000 measurements per log. For stored Job readings, number dependent on Android device storageTablet Requirements; Android 5.0 or later operating system Bluetooth® 4.0 or later Wifi connection required for some features - data sharing, MSDS and Certificate of Analysis accessCertifications; CE Marked according to EN61236-1 : 2006 - Annex A 2008: 1999/5/EC Annex III The Bluetooth transceiver device meets the requirements for modular transmitter approval as detailed in FCC public notice DA00-1407

Diagram of Parts

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Tablet / Android DeviceIncluded in full kit (exact devicemay vary but will always becompatible) Or use an existingdevice (must fulfil the requirements stated in Specifications section)

Charging StandHolds your tablet upright for easyviewing and also used to charge thetablet.Comprised of stand base,mains cable and USB cable. In-cluded in full kit or available sepa-rately.

Quick GuideA shortened user manualto get you up and runningquickly.

Battery and Battery CoversThis small inner box includes 1x 1/2 AA battery for the cap and 3x battery covers in different colours tohelp identify your cap from others.Included with all caps.

pH Electrode with S7 connectorIncluded with some caps or select anyelectrode to suit your sample type (evenfrom other brands)

SMARTcap Receives data from theelectrode and transmits itto the app.

Temperature ProbeMeasures the temperature of the sample to give temperature compen-sated pH readings. Fixed in the cap andcanot be removed or changed.

Electrode Soaker Bottle Filled with storage solution, for longterm storage of pH electrodes toprevent them drying out. Includedwith all electrodes.

ClipAllows the cap to be clipped ontobeakers or the storage stand. In-cluded with every cap, fixed to the temperature probe.

Storage StandFor storing the cap and electrodewhen not in use. Included in somekits or available separately.

pH BuffersEssential for regular calibrations ofthe pH electrode. Included in thefull kit and available separately.

If you are new to Androidsystems, this section will helpyou learn some of the generalrules for navigating around.

The hints given here apply tothe Android system in general,not just the TRUEscience App.This list is not exhaustive, the individual manual for your Android device will have morein-depth information.

We recommend that new userstake a few minutes to workthrough this section before youbegin using the TRUEscienceApp, so you are confident innavigating your way around.

Remember if you need help atany point, the UK based TRUEscience team are on handto help from 0900 to 1700 GMT

Telephone: 01954 233 144Email: info@truescience.co.uk

You can also watch our onlinehelp videos at any time;www.truescience.co.uk/videos

The Home ScreenThis is the screen which showswhen your device first turns on.

It will look slightly different oneach device, and you can customise the background picture and what shortcuts appear here.

We recommend taking a fewminutes to set up the homescreen with shortcuts to Appsyou will use regularly.

Home ButtonIn any App at any point you canreturn to the Home Screen bytouching the home button, circled in green above.Depending on the tablet makeand model it may be a circle or aphysical push button underneath the screen.

Try opening any App by touching a shortcut, then touchthe home button to return tothe home screen.

Back ButtonThe back button will go back tothe last screen you were on. Thisis useful if you accidentally go tothe wrong screen.Depending on the tablet makeand model it may be a triangleas circled above, or a curvedarrow;

Try opening any App, and toucha few options within it, then usethe back button to go back onestep.

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Android Hints and Tips

Android Hints and Tips

Multi-App ButtonThe final icon at the bottom ofthe screen is a square or twosquares layered on top of eachother;

This launches the multi-windowview, shown above, showingyou all Apps which are currentlyopen.If you are in an App then goback to home, it is still open inthe background, and can beseen in this list.

Fully close an AppIf you have used an App thengone back to the home screen itmay still be open in thebackground. This can drain thebattery.Try viewing all open Apps (seeprevious box) and fully close anyapp by swiping it across to theleft or right of the screen.We recommend fully closing theTRUEscience app when youhave finished working in orderto conserve your tablet battery.

Remove shortcuts from theHome ScreenRemove any shortcuts you don’tneed to keep the home screentidy.Touch and hold the shortcuticon and drag it up to the “remove” or bin icon which willappear at the top of the screen;

This doesn’t delete the App altogether, you can get theshortcut back if you want to.

View all installed AppsAt the bottom of the screenthere should be an “all Apps”icon - this is usually lots of dotsin a square shape;

Touch this to open the list of allinstalled apps. Touch and swipeleft or right to go to the nextpage if you have more than onepage of Apps.

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Android Hints and Tips

Add a shortcut to the HomeScreenPutting shortcuts to yourfavourite Apps on your homescreen makes it faster to openthem.

Try creating a new shortcut;touch the all Apps icon, thentouch and hold any App. TheHome screen will appear andyou can let go to drop the shortcut, saving it to your homescreen.

Re-arrange shortcuts on theHome ScreenYou can move shortcuts aroundon the home screen, for example to keep similar ones ogether or put them in theorder you prefer.

Try moving a shortcut on thehome screen; touch and holdany shortcut, then drag it to anew position on the screen andlet go to leave it there

View Short Settings MenuThe short settings menu allowsyou to turn on and off connections such as WiFi, Bluetooth or GPS and changethings like screen brightness orsound.

Try opening the short settingsmenu by dragging down fromthe top of the screen. You mayget a half menu and have to re-peat the action to open the fullmenu.

View Full Settings MenuFor more settings options, suchas changing the screen lockcode, viewing the storage statusof the device, changing thebackground wallpaper and lotsmore, you need to access thefull settings menu.

Try opening the short settingsmenu as before, then touch thecog icon to open thefull settings menu.

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Android Hints and Tips

Connect to WiFi InternetTo download new Apps and getfull functionality in Apps youshould connect to WiFi.Try connecting to your availableWiFi network, by going into theWiFi or WLAN part of the fullsettings menu. Ensure the WiFisetting is “On”;

Touch the network you wish toconnect to, enter the passwordin the pop up box and touch“connect”.

Find new appsThe Play Store is used to findand download new Apps.

There is usually a shortcut tothis on the home screen, orcheck the “view all installedApps” view. The iconlooks like this;

Try opening the play store (youmust be connected to the inter-net) and touch in the search boxat the top (circled above).

Download new appsThe search box in the play storeis used to look for new Apps.Simply type in the name or akey word to search for it.You may be shown a list of suggested Apps (touch the rightone to view more detail) or betaken straight to the detailedview as shown above.See more information about theapp, and touch “install” todownload it.

Minimise the keyboardThe keyboard will automaticallyopen when you touch into anyfield that you can type into.

You can minimise this again sothat you can see more of thescreen by touching the backbutton.

If you then touch the field youcan type into again the keyboard will re-appear.

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Turn on Bluetooth

1. In order for your tablet tocommunicate with the pH cap,Bluetooth connectivity must beturned on.

On the home screen of yourtablet, touch and drag downwards from the top of thescreen to open the short settings menu.

You may need to repeat the action if only a half menu showsat first (as shown above).

2. If the Bluetooth icon shows inthis short settings menu, youcan simply touch it to toggle iton or off;

If your Bluetooth is now on,stop here.If the Bluetooth icon is not inyour short settings menu, touchthe cog symbol to access the fullsettings menu (Go to 3).

3. The full settings menu islaunched.

Touch the Bluetooth icon

to go into the Bluetooth menu(Go to 4).

4. The Bluetooth menu islaunched.

Touch the slider switch in thetop right hand corner to toggleit on or off.

Once Bluetooth is turned on,touch the home button to return to the home screen.

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Off On

Off On

Connect to WiFi

1. You can use the TRUEscienceApp without being connectedto WiFi, but we recommend youdo connect if possible to accessall the features.

On the home screen of yourtablet, touch and drag down-wards from the top of thescreen to open the short set-tings menu.You may need to repeat the ac-tion if only a half menu showsat first (as shown above).

2. The first time you connect toWiFi you will need to choose anetwork and enter the pass-word. In this case touch the cogicon to access the full settings menu (Go to 3)

If you have already connected toa WiFi network which is still inrange your device may remem-ber the details. In this case justtouch the WiFi icon on the topmenu to toggle it on or off andyou will automatically connect.

3. The full settings menu islaunched.

Touch the WiFi icon;

to go into the WiFi menu (Go to4)

The WiFi icon may be labelledwith the word WiFi or WLAN.

4. In the WiFi menu, touch theslider switch in the top righthand corner to toggle it on oroff

When WiFi is turned on, waitfor the list of available networksto show. Touch the network youwish to connect to, enter thepassword when prompted, andtouch “Connect” to connect.Wait for the display to confirmyou are connected.

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Off On

Switching on & Multi-Cap View

2. When the TRUEscience App isfirst opened, you will see themulti-cap screen.

Here we can see any caps thistablet has previously connectedwith.

Touch the square tile for a capto view more detail (Go to“Meter View” section)

Alternatively we can monitormultiple caps at once (Go to 2).

3. If multiple caps are turned onand in range, we can use themulti-cap view to see livereadings from all of the caps atonce. This means we canmonitor up to 6 different pointsor experiments simultaneously.We can view up to 6 caps as agrid or as a list (Go to 6).

Each cap may also be logging atthe same time, to keep a record(Go to “Logging” section).

4. Touch anywhere on the lefthand side of the screen andswipe towards the right to openthe app settings menu, asshown above.From this menu we can changethe multi-cap view (Go to 5).

We can also hide caps we nolonger wish to view (Go to 4).

Swipe the menu from right toleft to minimise it again (Go to 6).

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1. To switch on the cap press andhold the teal coloured centreswitch button for 3 seconds.

A blue LED will now flashindicating the unit is switched on.If the LED is flashing green thenthe unit is on and in loggingmode.

The unit will switch itself off after30 minutes of inactivity but toconserve battery life werecommend switching off byholding the switch again for 3seconds

Switch

LED

Multi-Cap View

6. Touch the “Show as List”message to change the multi-cap view setting.

This toggles the view between agrid view (as shown in step 2)and a list (as shown above).

7. The cap names shown on thisview are the ones assigned onthis tablet.

i.e. if a cap has been given acustom name while working onanother tablet, that name willnot show on this tablet.

Touch the square tile for a capto go into Meter view and re-name the cap with a customname (Go to “Meter” section).

8. The shopping basket icon isdisplayed in the top right handcorner of this view;

Touch this to see what items arecurrently in your shopping basket and purchase new items(e.g. replacement bottles ofbuffer solution).

(Go to “Shop and Basket” section).

5. All of the caps this tablet haspreviously connected with arelisted at the end of the app settings menu with an eye iconnext to them;

Touch the eye icon to toggle thevisibility on or off.

When the eye is crossed out,this cap will not be visible onthe multi-cap view.

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Visible Not Visible

Meter View

1. When the TRUEscience App isfirst opened the multi-capscreen will show.

Here we can see all caps whichthis tablet has communicatedwith recently, along with thename this tablet knows eachcap by.

Caps which are currently turnedon and are in range show with agreen power symbol;

2. For all caps which are turnedon the pH and temperaturereadings on this view will showlive and change, so you canmonitor up to 6 caps at once.

To view one cap in more detailtouch anywhere on the whitesquare it is shown in, circled inred above (Go to 3).

3. Here we can view the live pH,mV, DO, ion and temperaturereadings.

The switch button allowsyou to toggle the readings

between raw mV and measuredvalues. We can also see battery information, the electrode currently being used and the lastcalibration date and time, or ifthe electrode is uncalibrated.

To rename the cap on this tablettouch the default cap, circled inred above (Go to 4).

4. The Edit Cap name box islaunched.

Type over the default name togive your cap an easily identifiedname - for example “QualityControl Lab” or “Cap 2”

Touch Save to save the changes(Go to 5) or touch Cancel to goback to 3

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Meter View

5. We return to the meter viewand the new name shows onthe screen. This name will showon this device only, it will notappear if you read the same capon a new tablet or phone.

Touch the Notes: message at thebottom of the screen to add further notes. (Go to 6).

Alternatively if you don’t needto record any additional notesyou can skip this step. (Go to 7).

6. The Edit Cap notes box islaunched.

Here we can type in any usefulreminders we may need aboutthis cap - for example “for finalproducts only” or “grey capwith red battery cover”.

Touch Save to save the changes(Go to 7) or touch Cancel to goback to 5.

7.You can store the currentreading by touching theSave button;

A grey confirmation messagewill appear for 3 seconds at thebottom of the screen;

This will save the reading in theJobs tab, under whichever JobList is currently open (see theJobs section of this manual forfurther details).

8. The Cap battery indicator isshown underneath the tempera-ture reading;

If the Power indicator is visibleand green, the Bluetooth icon isvisible and blue,the cap isturned on and in range,readings are live.

If these are greyed out or notpresent, you may be viewing acap which is out ofrange or turned off.

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Meter View

9. When you attch an ISEelectrode to the cap the meterview will appear broadly similarto pH except that it shows theION type above the battery levelindicator and shows mV in themain screen until calibrated

10. Once calibrated the screenshows the units chosen anddisplays the reading in thoseunits.

The switch button will allow youto swap between concentrationand mV.

11. When a REDOX probe isattached to the cap the displayshows mV and relative mV sothat you can monitor thechange in redox potential

12. When you have a DO probeattched to the cap the DissolvedOxygen screen shows withreadings as %Oxygen or %Air.

The first green number underthe reading is the salinity setting. The pressure reading inkPa is for adjusting readings at different atmospheric pressure.

See Dissolved OxygenCalibration

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pH Calibration

1. In the main Meter screen wecan see that our electrode is currently uncalibrated by the onscreen message;

This means any readings takencould be inaccurate.

To perform a calibration, touchthe “uncalibrated” message ortouch the “calibration” tab.(Go to 2).

2. In the calibration screen weare prompted to choose thebuffers we want to calibratewith.

Touch the + icon under the message “choose your buffersand standards” to select thebuffers you wish to calibratewith. (Go to 3).

3. We are taken to the inventoryscreen.

If you have already registeredbuffers these will be shown bytouching the “pH Buffers” bar,you can then select buffers fromyour existing inventory. (Go to 9).

To

4. We are taken to the “AddProduct to Inventory” screen.

If you have TRUEscience pHbuffers with smart QR codestouch the “QR Scanner”message to launch the QR scanner (Go to 5).If you have your own buffers,touch the different categories(pH buffers, DIN, NIST...) to findstandard values (Go to 10) orCustom to add a custom buffer(Go to 12).

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pH Calibration

5. The QR scanner is launched.

Bring the QR code on the bottleof the buffer into the view ofthe camera. (Go to 6).

If you have reached this screenby mistake, touch Cancel in thebottom right hand corner. (Goback to 4).

6. Hold the buffer bottle steadyin front of the camera, angledso that the QR code appears flatto the camera. You may need towait until the camera can focus.

The QR code will be scannedand registered automaticallywhen the bottle is held at thecorrect angle for a few seconds.This will launch the inventoryitem detail screen. (Go to 7).

7. The Inventory Item detailscreen is launched for a scannedbuffer.

The expiry date is detected fromthe QR code. You can renamethe buffer or view it’s Certificateof Analysis or MSDS sheet bytouching the relevant messages.Touch Save to save the buffer toyour inventory (Go to 8).

Alternatively touch Cancel to return to step 4.

8. We are returned to the calibration screen, with ournewly registered buffer added.

If expiry date and batch detailswere entered correctly, you willreceive a reminder when it isabout to expire.

Return to step 3 to add morebuffers, go to step 15 to removebuffers, or go to step 17 tobegin the calibration.

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pH Calibration

9. The drop down menu ofbuffers already in our inventoryis shown.Any buffers in our inventorywhich are expired will showwith the expiry date in red.

Touch on an in date buffer toadd it to your calibration. (Go to 8).

If the buffer you need isnot already in the inven-tory, click the red +.

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10. You can expand the list of standard buffers, DIN buffers orNIST buffers is shown.

Browse the list for the buffervalue you wish to add to yourinventory, and touch it to add.(Go to 11).

If your buffer is a non-standardvalue, touch “Custom” to add acustom value buffer (Go to 12).

12. The pop up box to create acustom item is launched.

Touch “Create” to proceed andcreate a custom value buffer.(Go to 13)

Alternatively touch “Cancel” toreturn to step 3.

12. The pop up box to create acustom item is launched.

Touch “Create” to proceed andcreate a custom value buffer.(Go to 13)

Alternatively touch “Cancel” toreturn to step 3.

Or touch “Cancel” to return tostep 10.

pH Calibration

14. The temperature table forthe custom buffer is shown.

Where temperature compensation data is shown onthe buffer label this should beentered here to help improvecalibration accuracy. Touch onthe temperature and value fieldsto enter the stated values. At least one row must be completed. When you are happywith the changes touch “Save”(Go to 8).

15. If there are buffers showingin your calibration list which youdo not use in this calibration,they can be removed.

For example in the image abovewe have accidentally added pH10 buffer twice.

Touch on the coloured (or white)space before the buffer nameand drag it to the right to re-move it, as pictured above (Go to 16) .

16. The buffer is hidden on thelist and a message “Swipeagain to remove” is shown.

Either swipe again to removethe buffer from this calibration(Go to 8)

Or touch “undo” to restore thisbuffer to the calibration list (Goto 8)

17. The buffers that you wish tocalibrate with are listed and youare ready to begin.

Pour a small amount of eachbuffer into separate beakers andhave your rinse water ready.

Touch the green Play icon tobegin

(Go to 18).

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21. The final buffer is highlighted in white.Again rinse the electrode inwater before stirring gently inthe highlighted buffer.

When the stable icon turnsgreen, touch it to save the read-ing. If you have additionalbuffers continue through eachone by repeating steps 20-21.

The calibration will end (Go to 22).

pH Calibration

18. The calibration is launched.

Follow the instructions onscreen; rinse the electrode inwater and then place into thebuffer highlighted on screen.Stir gently in the buffer then cliponto the beaker to allow thereading to stabilise.

Wait for the stable icon to turngreen (Go to 19).

19. Once the reading hasstabilised the stable icon in thebottom right hand corner willturn green;

Touch the green stable icon tosave the reading and move onto the next buffer (Go to 20).Stop at any point bytouching the red stopbutton. (Go back to 17).

20. Once the stabilised readinghas been saved the calibrationprompt on screen moves to thenext buffer.

Again rinse the electrode inwater before stirring gently inthe highlighted buffer.

When the stable icon turnsgreen, touch it to save the reading and move on. (Go to 21).

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pH Calibration

22. After touching the greenstable icon on the final buffer,the “Completed Calibration”box is launched.

You can see information here onyour electrode’s health and response time.

To save the calibration touch“Save” (Go to 23).

Or touch “Discard” to discardthe result and restart (Go to 17).

23. The calibration is saved andwe are returned to thecalibration screen.

Touch “Meter” to return to theMeter view. (Go to 24.

24. In Meter view we can seethe electrode is now calibrated,shown by the green tick anddate message at the bottom ofthe screen;

Readings taken will now be accurate.The calibration will remain validfor 1 day by default. The defaulttime can be changed by theAdministrator (see AdministratorSettings section).

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ISE Calibration

1. Start by diluting a 1000 PPMstandard to create at least two,ideally 3 standards.

The standards should be inmagnitudes of 10 (e.g. 0.01,0.1, 1PPM).

Make sure your standards coverthe range of your expectedresults.

2. Measure 50 ml of eachstandard into individual,analytically clean beakers

Add 1ml of ISAB to eachstandard, and swirl beakers toencorporate ISAB in to standard.

3. Open Truescience app andselect the cap being used.

4. Ensure the correct ISE isregistered to the cap.

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ISE Calibration

4. Select the Calibration tab.

Select the “+” icon toadd a dilution group toyour calibration.

5. Select “Create Group”.

Then select the red +icon in the bottomright hand corner ofthe screen.

6. Name your dilutions group onthe ‘description’ line.

Select “Save”.

Use a name that helps youidentify the group s you will beable to re-use the group.

7. Select the red + icronto add your 1000ppmstandard.

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ISE Calibration

8. You can either select apreviously added group fromthe drop down menu “ISEStandards” at the top of thescreen.

Or select the “QR Scanner”icon at the bottom right handside of the screen, to add a newstandard to you inventory.

9. Scan the QR code on yourstandards bottle using thedevices camera, it willautomatically capture the codewhen the camera is held overthe QR code image.

10. This will load the standardand all its associated details andbatch information.

To continue, select “Save”.

11. To add your firststandard dilution, selectthe red + button.

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ISE Calibration

12. Add in the dilutionconcentration of your firstdilution, starting with theweakest.

13. Add the amount ofISAB added per 100ml.

Select “Save” to save thedetails of your first diltionstandard and to then continueon to add your next dilutionstandard.

14. Click the white bar“+” tab under your firstdilution to add the nextone, following the sameprocess from steps 12-13adding each of your dilutions,from weakest to strongest.

One they are all added you areready to calibrate yourelectrode.

15. Select the green playbutton at the bottomright hand corner of thescreen to begin thecalibration.

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ISE Calibration

17. Rinse the electrode withdeionised water, then place itinto the first concentrationstandard, and wait for the“Save” icon to turn from greyto green, indicating the readinghas stabalised.

18. When the iconturns green, click it tosave the reading.

After the green save icon hasbeen clicked, the next diltuionstandard down the list will behighlighted, and steps 16-17can be repeated.

Do this until all dilutionstandards have been measured.

19. When all dilution standardshave been measured, acompleted box willautomatically appear.

Click “Keep” if you are happywith the result.

Now the calibration is complete,the electrode can be used tomeasure your samples.

20. If you are not happy withthe calibration, click discard andrepeat the process.

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Dissolved Oxygen Calibration

1. Touch the calibration mes-sage or the calibration tap inmeter view to enter calibrationmode.

2. You can do a simple singlepoint calibration with Air as astandard. This is the usualcalibration method and is preloaded.

Alternatively you can add asecond zero solution standard

3. Alternatively you can add asecond zero solution standardfrom the inventory. (Seeinventory for details on how toadd an item to the Invenory)

4. Similar to pH and ISE youstart calibration by pressing theplay button, wait for thecalibration to stabilise and thenpress the save icon.

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Dissolved Oxygen Calibration

5. The main screen view alsoshows the current settings forSalinity and atmosphericpressure.

These can be adjusted ifrequired by clicking on them

6. Salinity of your sample willaffect DO readings. Click on thesalinity ppt reading and thisscreen will pop up. Add yourfigure and units for salinity ofyour samples as required.

You can click ‘reset to default’ ifyou don’t require this value tobe set.

7. Atmospheric is set to101.3kPa but you can adjustthis if you are taking readings ata high altitude to adjust forlower air pressure.

You can click ‘reset to default’to return to set value.

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Redox ORP Calibration

1. Redox measurements do notgenerally require calibration assuch although you can checkthe absolute mV with a standardif required.

When viewing the meter screenwith a Redox electrode loadedon the cap the switch button isreplaced by a Zero button.

2. Pressing the Zero buttonzero’s the main displayreading.You can now monitorthe change in redox potentialfrom this point.

A smaller mV reading appearsbelow the main reading to showthe raw mV reading forreference.

Click the reset button torevert to the original view.

3. You can also check thereadings with a Redoxcalibration standard but resultsare very dependant on thesystem and conditions so it isusually only for a guide.

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QC Check

1. The QC Check function allows you to have an additionalcheck on the electrode after calibration.QC Check should be performedwith another pH buffer value,not one you have already calibrated with. This way it actsas a test that the electroderesponse is correct. You can QCcheck with one buffer at a timeonly.

To begin, touch “QC Check” onthe top menu bar (Go to 2).

2. The QC Check screen islaunched.

To choose the buffer you wishto perform a QC check withtouch the plus icon underneaththe message “Choose yourBuffers and Standards”

3. The Inventory screen islaunched.

If the buffer you wish to per-form the QC check with is already in your inventory, touchthe categories (buffers, pHbuffers) to find it and touch thechosen buffer to select it (Go to 14).Alternatively to add a new pHbuffer to your inventory, touchthe red plus icon in the bottomright corner. (Go to 4)/

4. The Add Product to Inventoryscreen is launched.

Touch on each category (buffers,pH buffers DIN, NIST) to viewthe standard buffers in that category, for example we maychoose pH Buffers DIN to add astandard DIN value buffer (Go to 5).

Alternatively to add a customvalue buffer touch Custom (Go to 9).

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QC Check

5. The list of pH buffers (DIN) isexpanded.

Touch and drag up or down toscroll through the list and findthe correct buffer.

Touch the buffer you wish toadd (Go to 6) or touch thecategory name (pH Buffers -DIN) again to minimise the list(Go back to 4).

6. The Inventory Item Detailscreen is launched for the stan-dard buffer selected.

Check that the expiry dateshown is the correct one asshown on the bottle. Touch thisfield to open the calendar andchange the date. (Go to 7).

Alternatively if the expiry date iscorrect, skip this step (Go to 8).

7. The Set expiry date calendaris launched.

Touch and drag the calendar toscroll forwards and backwardsby month.Alternatively touch the year tochange to scrolling years. Returnto months by touching therequired expiry year.

Touch the expiry date requiredand touch “Set” to save. (Go to8)

8. Enter the batch number forthe buffer by touching the“Batch Number” field.

The keyboard is launched, usethis to type in the batch numberas stated on the buffer bottlethen touch “Save” to save thechanges. (Go to 14).

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QC Check

9. The pop up box to create acustom item is launched.

Touch on the word “Buffer” toselect from a drop down menuwhether you wish to add abuffer or standard.

Once you are happy with theselection touch “Create” tocreate your custom item (Go to10).

Alternatively touch”Cancel” to

10. The Inventory Item Detailscreen is launched for a custombuffer.

Touch the default name “MyCustom Buffer” to launch thekeyboard and type over yourown buffer name.

Touch the expiry date to launchthe calendar and change it (Go to 11).

11. The Set expiry date calendaris launched.

Touch and drag the calendar toscroll forwards and backwardsby month.Alternatively touch the year tochange to scrolling years. Returnto months by touching therequired expiry year.

Touch the expiry date requiredand touch “Set’ to save. (Go to 12) .

12. Touch and drag the screento scroll down to the batchnumber field.

Touch “Enter a Batch Number”to open the keyboard and typein the batch number as shownon the bottle.

Touch and drag the screen toscroll further down to the temperature table (Go to 13).

33

QC Check

13. The temperaturecompensation table for acustom buffer must have atleast one temperature and pHvalue entered. Entering morevalues will make the resultsmore accurate. The valuesshould be shown on the bottlelabel.Touch the empty lines to lanchthe keyboard and enter atemperature or pH value.Once you are happy with thedata entered touch “Save”tosave the changes (Go to 14).

14. We are returned to the QCCheck screen with our selectedbuffer added to the current QCcheck.

If the buffer shown is not theone you wish to QC Check with,you can remove it. Touch on thewhite space next to the buffername and drag to the right (Goto 15).

Alternatively if this is the correctbuffer, go to 16.

15. The buffer has been hiddenfrom the QC check screen, andthe message “Swipe again toremove” is shown.

To remove the buffer from theQC check, touch the word“Swipe” and drag to the right(Go back to 2 and select thecorrect buffer).

Alternatively touch “Undo” toput the buffer back on to thecurrent QC check (Go to 16).

16. The QC check screen isshowing the correct buffer andwe are ready to begin.

Pour a small amount of yourbuffer into a beaker and haveyour rinse water ready.

Touch the green play icon tobegin (Go to 17).

34

QC Check

17. The QC check has begun.

Follow the instructions onscreen - rinse the electrode withwater before placing into thebuffer. Stir gently then clip ontothe side of the beaker to allow itto stabilise (Go to 18).

Alternatively you can stop theQC check if you arenot ready to begin bypressing the red Stopicon (Go to 14).

18. Wait for the reading to sta-bilise, indicated by the “stable”icon turning from grey to green;

This usually takes 30 seconds to1 minute, depending on theelectrode condition.

When the stable icon showsgreen, touch it to save the result(Go to 19).

19. The Completed QC Checkbox is launched.

Here we can view the results ofthe check - if it was a pass orfail, the electrode health, sensi-tivity, speed and probe battery.

Touch “Keep” to save the QCcheck (Go to 20).

Alternatively touch “Discard” todiscard the result without saving(Go to 14).

20. We are returned to the QCcheck screen.

Touch “QC Check History” toview the results of this andother QC checks performed (Go to 21).

Alternatively you can touch anyother menu option along thetop menu to continue to othermodes.

35

QC Check

21. The QC Check History isshown.

At the moment only our first QCcheck shows, over time this listwill include all historical QCchecks in time order with thelatest at the top and oldest atthe bottom. Touch and drag thelist to scroll up and down.

Touch on a reading to expand it(Go to 22).

22. The selected QC check is expanded to view further detail.

We can see details of the QCcheck including the buffer used,the target and actual result andthe electrode which was used.

Minimise the details again bytouching the white bar with theQC check date and time.

36

Logging

1. Each cap can be set to log results over time.

Logging can continue evenwhen you are out of range ofthe cap - the log will be storedon the cap and download to theapp when you next bring yourtablet to the cap. One log canhave up to 10,000 readings.

To set up a log, touch “Log-ging” in the top menu bar tolaunch the main logging screen.

2. First we must set the parame-ters of the log.

Touch in the number (15 by de-fault) to type in the frequencyyou wish to log at.

This is the value only, the unit(seconds, minutes, hours etc)will be set later.

Type in the desired value (Go to 3).

3. Set the time unit required.

Touch on the word “sec” toview available options - we canchoose from seconds, minutes,hours or days.

Touch the required unit to selectit (Go to 4).

4. Set the start time and date required, if you wish to set a future start time. If you wish tostart logging immediately fromwhen you press go, skip thisstep and go to 5.Touch on the word “now” tolaunch the calendar and clock.Touch the required start dateand time and then touch “set”to save the changes. Alterna-tively touch “cancel” to closethis again and keep the time as“now”. (Go to 5).

37

Logging

5. Set the end time and date re-quired.

Touch the time and date shownafter the word “to” to launchthe calendar and clock and setthe end date and time. Touch“set” to save the changes.

Alternatively you can accept thedefault end date and time andsimply press to stop manuallywhen you want to end the log. (Go to 6).

6. Once you are happy with theintervals, start date and time,end date and time, place yourcap so that the electrode is inthe solution you wish tolog, then touch the greenplay icon to begin;If you have set short intervals ofunder 10 seconds you may seethe message as above, touch“Continue” to accept theshortened battery life, or touch“Cancel” to return to step 2and reset the log parameters.

7. As the logging begins a greenbar will show at the top of thescreen reading“logging starting...”

After 30 seconds to 1 minutethis will disappear and the logging will begin (Go to 8).

8. Logging has begun and thelog graph is launched.

At this point you may take thetablet away if required -readings will sit on the cap untilthe tablet is next brought back.

38

Logging

9. We can see the results of thelog in both graph and tableformat on the logging screen. Results will continue to appearat the set interval while the capis in range of the tablet.

If you wish to stop loggingmanually touch the redstop icon (Go to 10)

Alternatively wait for the setend time and the log will stopautomatically (Go to 11)

10. A request to manually stoplogging has been received, andthe dialogue box is launched tocheck this is correct.

Touch “Stop” to stop the log-ging (Go to 11)

Alternatively touch “Continueto Log” to carry on until the predefined end date and time. (Go back to 9).

11. Logging has been stopped,the green status bar at the topof the screen reads “LoggingStopping...”

After 30 seconds to 1 minutethis will disappear and the log-ging will stop (Go to 12).

12. The logging has stopped,we can now review the datalogged.Use the graph zoom tools tozoom in and out of the graph.Touch and drag the graph tomove up, down, left and right.Touch and drag the table of results to move up and down.

Touch “Share” to send theresults (Go to 13).Or touch “Logging History”(Go to 15).

39

Logging

13. The sharing options list islaunched.

Here we can see the optionsavailable to share our loggingresults. This will vary dependingon the sharing Apps you haveinstalled on your device.

Touch the desired sharingmethod to launch the App (Go to 14). Or touch the back button to goback to the log (Go to 12).

14. The log is ready to share byemail.The log file is a .csv format,which can be interpreted bymost spreadsheet packages andLIMS systems.

The log file includes; startdate/time, end date/time, user,last calibration date/time,reading number, time/datestamp per reading, secondsfrom start per reading, pH, mVand temperature per reading.

15. The logging history screen islaunched.

Here we can see a list of allprevious saved logs.

Touch on a log to open it in themain review screen (Go to 12).

Alternatively touch the backbutton to return to the reviewscreen on the current log (Go to 12).

40

Jobs

1. The Jobs tab allows you tokeep a historical record for onetask or reading area.

For example, if you need torecord the pH of the wash solu-tion used in your process everyday you may create a job listcalled “Wash Solution” andrecord readings under it everyday.

Touch “Jobs” to access the jobstab (Go to 2).

2. In the Jobs tab we can seeany readings already storedunder the current job list, shownwith a green tick mark.To create a new job list, touch“New Job” at the bottom ofthe screen (Go to 3).If you want to use the currentjob list, and keep any alreadystored readings, you can simplyname this list by touching the“Job Name” field at the bottomof the screen (Go to 4).

3. A new job list screen islaunched.

Touch the “Job Name” field,circled above, to change thename of this job list (Go to 4).

4. The keyboard is launched torename the open job list.

Enter the required name andtouch “Save” to save thechanges.

You can also add notes aboutthis job by touching “Notes”(Go to 5).

If you don’t need to add notes,you can add a reading to the joblist (Go to 6).

41

Jobs

5. The job notes box islaunched.

Enter any notes you want torecord about this job - forexample the frequency of tests,who is responsible for the tests,or any special instructions.

Touch “Save” when you arehappy with the notes entered tosave the changes.

6. When a reading is stored on ajob list it cannot be deleted, toprevent data manipulation.

This means you must check youare on the correct list before youstore a reading.

The job list name is shown atthe bottom of the screen, circledabove.

7. If you are on the wrong list,touch “Job List” in the bottomright hand corner, circled above,to view other available lists (Goto 8).

Alternatively create a new list(Go to 2).

When you are happy that theright list is shown on the jobsscreen, you can store a readingnow (Go to 9) or after a count-down timer (Go to 11).

8. The Jobs List screen islaunched - here we can see allof the job lists we have created.

Touch a list to open it and viewhistorical readings on it, or adda new reading to it now (Go to9) or after a countdown timer(Go to 11).

Alternatively if you want to create a new job list, touch theback button to go back to themain Jobs view (Go to 2).

42

Jobs

9. To add a reading to the openjob list now, make sure the electrode is in the sample youwish to read and has beenstirred to let the reading stabilise.

Either touch “Store Reading”in the Jobs view to store areading immediately. (Go to 13).

Or you can also go to Meterview to see the reading beforeyou store it (Go to 10).

10. If you have the required joblist open, but want to view thereading before you store a result, touch “Meter” on thetop menu bar to return to meterview. You can now view the livereading from the electrode asusual, and when you are happythe reading has stabilised touchthe “Store” icon to store the result. Touch “Jobs” to return to thejobs screen and view the storedresult (Go to 13).

11. If you wish to store a reading, but the sample is difficult to access, you can set a timer.

Touch the + and - icons eitherside of the green band to increase or decrease the timer(settable in 1 secondincrements)

When the desired time isreached touch the central“Store a reading in X sec” tostart the timer (Go to 13).

12. The countdown timer hasbegun - use this time to takethe cap to the sample and placethe electrode into the sample.You can leave the tablet behindat this stage, providing it is stillin range(?)

Wait for the countdown to bereached, and the reading willautomatically be stored (Go to 13).

43

Jobs

13. The reading has been storedon the current job list, as indi-cated by the green tick symbolnext to the result.

It is recommended to give eachreading a name for clarity (Go to 14).

Touch the down arrow next tothe result to view full result dataand add GPS information, photos or notes to your result.(Go to 14).

14 . Touch a stored readingname (“Reading 1/2/3...” bydefault) to rename it.

The “Edit reading name” boxis launched. Type in the requiredname and touch “Save” to savethe changes.

You can view full reading information by touching thedown arrow next to the greentick mark (Go to 15).

15. The full reading informationis shown for the selectedreading - you may need to scrolldown to see it all. The time anddate stamp, user, electrode andcalibration information cannotbe changed on a recorded jobreading, and a recorded jobreading cannot be deleted afterit is stored, to prevent datamanipulation.More information can be addedto enhance the stored reading(Go to 16).

16. We can add more informa-tion to a stored reading if re-quired.

To add written notes, touch the“Notes” message (Go to 17)

To add GPS information, touchthe “GPS not set” message (Go to 18).

To add a photograph touch“Photo not attached” (Go to20).

44

Jobs

17. The reading notes box islaunched.Enter any additional notes aboutthe sample or reading that youwant to capture (e.g. if thecolour was different than usual,if the sample size was small ornot stored properly)

Touch “Save” when you arehappy with the notes added.

You can now add more informa-tion if required (Go to 16).

18. The GPS tracker is launched- here we can add our currentGPS location to the reading. Forexample if you have measuredpH in a stream this would allowyou to later see exactly whichlocation it was measured at.Touch the GPS symbol to recordthe current location. Locationservices must be turned on onyour tablet (accessed via thetablet settings menu - see the“Android Hints and Tips”section)

19. The GPS symbol flashes witha black circle in the centre. Wait for the location to befound - this can take up to aminute. The tablet must havelocation services turned on, andyour device may not be able tofind a location if you are inside alarge building. The text onscreen will detail the date andtime when GPS is set. Touch“Save” to save the reading.You can now add moreinformation if required (Go to

20. The box to add a photo-graph to a reading is launched.

Touch the white + symbol toadd a photograph (Go to 21)

Alternatively touch cancel to goback (Go to 16)

45

Jobs

21. The image source optionsare listed.

Touch the required source toadd a photograph either fromyour existing documents (Go to 22) or by taking a newphotograph now with thetablet’s camera (Go to 23).

22. The documents saved onthis device are opened.

Find the correct image you wantto attach to this reading andtouch to select it.

23. The camera is launched.Take a photo by touching thecamera capture icon.

The still photgraph will show onscreen for your review - touchthe tick to accept the photo-graph (Go to 24), or touch thecross to delete this and take anew photo. (Repeat this step).

24. You will be returned to thephoto adding box with the cho-sen image shown.

Touch “Save” to save the imageto the reading and return to joblist.

Alternatively touch the “X” toremove this image and chooseanother one (Go to 20).

Touch “cancel” to return to thejob list without adding a photo.

46

Alarms

1. Alarms can be set to alert youvisually and audibly if the readvalue is outside a set pH or tem-perature limit.

Touch “Alarms” on the topmenu bar to go into the mainalarm screen as shown above.

Set up a new alarm by touchingthe + symbol (Go to 2)

2. A new alarm box is launched.

Touch on the word pH to set thealarm trigger parameter (Go to3)

3. The alarm trigger parametersavailable are shown - we canchoose to set an alarm by atemperature or a pH value;

Touch the required parameter toselect it.

Touch the words “LESS than” toselect the alarm condition (Goto 4)

4. The available alarm condi-tions are listed - we can choosefrom “Less than” or “Greaterthan”;

Touch the required condition toselect it.

Touch the number value (0.0 bydefault) to enter the triggervalue (Go to 5)

47

Alarms

5. The keypad is launched toenter the alarm trigger value.

Type in the required value.

Either touch the grey toggleswitch to set the alarm withoutan email alert (Go to 7).

Or touch the “Email address”field to enter an email address(Go to 6).

6. The keyboard is launched totype in an email address.If the alarm is triggered an emailwill be sent to this address toalert you.

Make sure that the box next to“Email Alert?” is ticked to turnemail alerts on - touch it to toggle on or off.When you are happy with theemail address, Turn the alarm on(Go to 7).

7. When you are happy with thealarm parameters and email set-tings, touch the grey toggleswitch to turn the alarm on;

When the switch is black, thealarm is active.Return to view live readings onthe meter screen by touching“meter” on the top menu bar(Go to 8).

8. We have returned to themain meter view and can seethe live reading from the electrode.

We can see that an alarm is active as the alarm clock symbolis shown under the battery indicator.

48

Off On

Alarms

9. If the reading goes outside ofthe alarm parameter the alarmis triggered.

The readings in meter view turnred, the audible alarm willsound, and a notification willappear on your device.

Drag down from the top of thescreen to view the alarm notifi-cation (Go to 10)

10. We can see the alarmnotification, which also tells uswhich alarm was triggered (inthis case pH is greater than 9.0)

If the “Dismiss” option is notshowing, you may need to dragdown on the notification toopen it fully.

When you can see the“Dismiss” message, touch thisto stop the alarm (Go to 11)

11. We are returned to thealarm screen with the alarmnow turned off, since we havejust dismissed it.

To turn the alarm back on again,touch the toggle switch (Go to7)

12. It is possible to build multi-ple alarms, each with differenttriggers, and have more thanone alarm set at a time.

Touch the + icon at the end ofthe alarms list to add another.

Up to X alarms can be set atonce.

If you no longer need an alarmit can be deleted (Go to 13)

49

Alarms

13. To delete an unwantedalarm, touch and hold on theleft hand side of the white barand drag it to the right. (Go to14).

14. The unwanted alarm is hid-den and the message “Swipeagain to remove” is shown

Either repeat the action, touching and holding the word“Swipe” and swiping it to theright to fully delete the alarm

Or touch “Undo” to restore thealarm (Go back to 12).

50

User Accounts

1. It is possible to use theTRUEscience app withoutlogging in as a set user, andactions will be recorded withuser “unknown”To access certain settings theadministrator must log in.The administrator can alsocreate new user accounts soactions can be recorded with auser name assigned to them.To access the app settings menu(shown above) from any screenin the app, swipe from the left

2. Log in as the administrator toaccess advanced settings andcreate new users.

Make sure the name under “Login as” says “Administrator”(touch the word Administratorto choose it from a list if it doesnot) then touch “LOGIN” tolaunch the PIN code pad asshown above.Enter the Administrator PIN(1485 by default) and touchLogin (Go to 3)

3. We are returned to the appsettings menu.The top section is now green toshow we are logged in, and thetext tells us we are logged in asthe administrator. The message“logged in as administrator”appears in a grey lozenge at thebottom of the screen for 3seconds.Touch Settings to access theadvanced app settings (Go to 4)Or touch “Create” to add a newuser (Go to 6)

4. The Administrator Settingsscreen is launched.Here we can change how long acalibration is valid for, thedefault shelf life of electrodesand buffers, edit theadministrator’s PIN code andother users PIN codes.

Touch any field to launch thekeyboard and edit it (Go to 5)

Alternatively touch back toreturn to the menu (Go to 3)

51

User Accounts

5. The keyboard is launched toedit an App setting.

Erase the old value and enteryour preferred value, then touch“Save” to save the changes.

After touching save you will bereturned to the App settingsmenu (Go to 3).

6. The create a new user box islaunched.

Use the keyboard to type in thename and enter a PIN code forthe new user. The user oradministrator can change thePIN code later if they wish.

When you are happy with thedetails entered, touch “Create”to create the new user. (Go to 7).

7. The new user has been cre-ated, and we are returned tothe App settings menu.

You can view all the current useraccounts by touching “Settings” (Go to 8).

Alternatively you can now logout as administrator and let thenew user log in, by touching“Logout” (Go to 10).

8. In the administrator settings,we can see all of the currentuser accounts.

Touch on a name to edit thename, change the PIN code ordelete this account (Go to 9).

Alternatively you can return tothe app settings menu by touching the back button (Go to 7).

52

User Accounts

9. The edit user screen inlaunched.

Touch the name field to edit thename, or touch the PIN codefield to assign a new PIN code.When you are happy with thechanges touch “Save” (Go to 7)

Alternatively to delete the user,touch “Remove User” (Go to 7)

10. We have logged out of theadministrator account.

Swipe from the left hand side ofthe screen to the right to openthe app settings menu again.

Touch the word “Administrator”to open the list of availableaccounts (Go to 11)

11. A list of the available userswe can log in as is shown.

Touch a name to log in as thisaccount (Go to 12)

12. The PIN code pad islaunched.

Enter the PIN code and touch“Login” (Go to 13)

53

User Accounts

13. We are now logged in as anon-administrator user.

The top section of the App settings menu is green andstates the name of the user weare logged in as.

Touch “Settings” to access theuser’s settings. (Go to 14).

14. The non-administratorsettings screen is launched.

As this user is not an administrator, they can onlychange their own PIN code, theycannot edit App settings, createother users or edit other users.

54

Inventory

1. The Inventory manages all ofthe items in our measurementsystem, including the cap,electrodes and buffer solutions.

It allows you to re-order thesame items you have usedbefore, and will alert you whenitems have gone out of date.

To access the inventory viewtouch the left hand side of thescreen and swipe right to openthe app settings menu (Go to 2)

2. The app settings menu islaunched.

Touch “Inventory” to go intothe inventory screen. (Go to 3)

3. The Inventory screen islaunched.

The items currently in our inven-tory are classified by type.

Touch on any of the categoriesto expand the view and seeitems in that category (Go to 4)

Alternatively touch the red plusicon to add a new item to yourinventory (Go to 12).

4. The list of pH bufferscurrently in our inventory isexpanded. Any items which areexpired will show with theexpiry date in red.

Touch edit to see and changedetails, or retire an expired item(Go to 5).

Alternatively touch purchase toadd a replacement of this itemto your basket (Go to “Shopand Basket” section)

55

Inventory

5. The Inventory Item Detailscreen is launched.Touch the Display name field tochange the name (Go to 6). Touch the openedand expires dates to changethese dates (Go to 7)Touch “Tap here to view” tosee the MSDS or Certificate ofAnalysis for chemical items (Goto 8).Touch “Retire” to retire an expired item from your inventory (Go to 11).

6. The keyboard is opened, typein the new name you want theitem to have.

If this is the only change youwish to make, touch “Save”tosave the changes (Go to 4).

Alternatively scroll further downto access open and expiry dates(Go to 7) or MSDS sheets (Go to 8).

7. After touching an “Opened”date or “Expires” date, the calendar is launched.

Touch the year in the top greenbox to quickly scroll throughyears. Touch the required year toselect it, then scroll by month.Touch the required date toselect it, then touch “Set” or“Save” to save the change.Alternatively touch “Cancel” tocancel without changing thedate (Go to 5).

8. After touching “Tap here toview” next to the MSDS or Certificate of Analysis field, thefile will be opened. You must beconnected to the internet toview these files (Go to “Con-nect to WiFi” section)Touch and drag to move aroundthe file, or pinch and zoom tozoom in and out.Tap anywhere on screen to viewadditional options (Go to 9)Touch the back button if youhave finished (Go to 5).

56

Inventory

9. The additional options on theMSDS or Certificate of Analysisare shown.Touch the three dots in the topright hand corner, then touchthe expanded “Share to” optionto view all sharing options (Goto 10)Alternatively touch anywhere onscreen to minimise the addi-tional options again (Go to 8)Alternatively touch the backbutton if you have finishedviewing the file (Go to 5)

10. The list of sharing options isshown. The exact optionsshown will vary depending onthe apps you have installed onyour device.

Touch on any option to launchthat app and share the file bythis method.

Alternatively touch the backbutton if you have finishedviewing the file (Go to 5)

11. If an item has expired, beenused up or is being replaced, wecan retire the old item so it nolonger appears in our inventory.Doing this regularly will ensurethe inventory list is kept up todate, making it easier to browseand stopping unecessarynotifications. After touching“Retire” the dialogue boxshown above appears, asking ifwe are sure.Touch “Retire” to retire the itemor touch “Cancel” to return tostep 5.

12. The Add Product toInventory screen is launched.

If the item you want to add is aTRUEscience item with a QRcode, touch the “Tap to scan”message to launch the QRscanner (Go to 13)

Alternatively touch on anycategory to expand it and addan item manually (Go to 15)Alternatively touch “Custom” toadd a custom item (Go to 18)

57

Inventory

13. The QR scanner is launched.

Hold the QR code for the itemyou wish to add in front of thetablet’s camera.

Hold it steady and present thecode to the camera face on,then wait 2-3 seconds for thescan to register (Go to 14)

14. The Inventory Item Detailscreen is launched for thescanned item.The opening date will default totoday, the expiry date will be setto the default period onelectrodes, or be set to theactual value on buffers.Touch the display name field ifyou want to rename the item(Go to 6) or view MSDS sheets ifrequired (Go to 8). When youare finished touch “Save” tosave the item to your inventory.

15. The list of products in thiscategory which we can add toour inventory is shown.

Scroll through the list to find theitem you wish to add, and touchit to proceed (Go to 16)

Alternatively touch the categoryname to minimise this categoryagain (Go to 12)

16. The Inventory Item detailscreen is launched for the man-ually selected item.

The opening date will default totoday, and the expiry date willdefault to +1 year. Touch thesefields to edit them if required(Go to 7)

When you are finished touch“Save” to save the item to yourinventory.

58

Inventory

17. The box to add a new cus-tom item is launched.

Touch the type of item word toexpand a list of available itemtypes.

Touch the required item type toselect it, then touch “Create” tocreate the custom item. (Go to18)

18. The Inventory Item Detailscreen for a custom item islaunched.Touch the display name to editthe item name as required.Touch the open and expiry datesto set these as required. Touchthe “Batch Number” field toenter a batch number ifrequired. If the custom item is abuffer scroll down to thetemperature compensation table(Go to 19) or touch “Save” tosave a non-buffer item.

19. When adding a custombuffer, at least one row of thetemperature compensation tablemust be filled out. If more rowsare filled out, your calibrationsusing this buffer will be moreaccurate.

Touch the “temperature” or“Value (pH)” cells to entervalues as shown on the bufferbottle label.Touch “Save” to save the bufferwhen you have finished.

59

Notifications

1. The TRUEscience app willalert you via notifications onyour device when an item hasexpired, or when an alarm hasbeen triggered.

To view any currentnotifications, drag downwardsfrom the top of the screen. (Goto 2 or 3)

2. An expired item notification isshown;

To re-order a replacement touchthe shopping basket icon nextto the word “Re-order” - thiswill launch the Basket and Shopscreen with the item added toyour basket (Go to the “Shopand Basket” section of thismanual)

3. An alarm notification isshown;

To turn off the alarm, touch“Dismiss” - this will take you tothe alarms screen (Go to the“Alarms” section of thismanual)

4. You can dismiss a notificationwithout taking action by swip-ing it to the side.

This will not stop the alarm, orre-order the expired item.

The notification will appearagain in around 1 minute if thetrigger condition is still valid(e.g. if there is still an expireditem in your inventory, or if thealarm conditions are still beingmet)

60

Shop and Basket

1. Within the app you can ordernew parts or solutions and re-order parts or solutions youalready have.

Access your basket screen bytouching the basket icon shownin the top right hand corner ofthe multi-cap view or theinventory view (Go to 3)

2. If you are in another screenwhich does not show the basketicon, you can reach the shopand basket via the app settingsmenu.

Touch anywhere on the lefthand side of the screen andswipe towards the right toexpand the app settings menuas shown above.

Touch “Shop” to proceed toyour basket (Go to 3)

3. The Shop and Basket screen islaunched. If you have alreadyadded items to your basket (bytouching “purchase” next tothat item in inventory view) theywill show here. Items will remainin the basket until they arepurchased or deleted.Use the green + and - buttonsto adjust the quantity of eachitem. Touch proceed tocheckout to buy the items (Goto X) or delete any items you nolonger need (Go to 4)

4. If there is an item showing inyour basket which you nolonger require you can delete it.

Touch and hold on the itemname near the left hand end,and swipe it over to the right aspictured above (Go to 5)

61

Shop and Basket

5. The item has been hidden,and the message “Swipe againto remove” is shown.

Repeat the action, swiping fromthe word “swipe” to the rightof the screen, to delete the itemfrom your shopping basket.

Alternatively touch “Undo” torestore the item to the basket(Go to 3)

6. After touching proceed tocheckout you will be redirectedto one of our partner stores tocomplete your purchase.You must be connected to theinternet, and depending on thespeed you may need to wait upto 1 minute for the page toload. When the page hasloaded, follow the diretions onscreen to complete thepurchase. Alternatively touchthe back button to go back tobasket view (Go to 3)

62

Everyday Care

Properly caring for your equip-ment can help to extend theworking life of the system andensure your readings remain fastand accurate.

Taking a few minutes each dayto make sure that the system iscleaned and stored properly willgreatly lengthen the lifetime ofyour pH electrode.

Store the electrode in storage solutionThe storage stand is the simplestway to ensure the pH electrodeis kept immersed in storagesolution when not in use.Use the TRUEscience ownstorage solution (item 1145514)or the electrode manufacturer’srecommended solution.NEVER store the electrode inwater or dry - this will damagethe electrode, possibly beyondrepair.

Rinse the electrode after useAfter any sample or buffer, orbefore putting the electrodeinto storage solution, alwaysrinse it clean with water.This prevents cross-contamination betweendifferent samples and removesany residue from the electrodebefore it dries onto the surface.

Rinse under the tap, in a beakerof rinse water (changedregularly) or with a wash bottle.

Keep the cap dryWhile the electrode andtemperature probe can beplaced in liquid samples, the topcap should be kept dry.

Take care when working and dryoff small splashes with a drytowel.If the cap is dropped into waterit may be damaged beyondrepair - carefully remove it andleave to dry for 24 hours beforeattempting to use it again.

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Everyday Care

Choose an electrode to suityour samplesSpecialist electrodes may beneeded for samples that containproteins, are highly corrosive,are viscous, are solid or semi-solid, TRIS buffers or foodproducts.We can help you choose anelectrode if you’re unsure andremember you can use anyelectrode with a standard S7connector - even from othermanfuacturers!

Calibrate regularlyWe recommend calibrating yourpH electrode at least once a day,to keep it accurate.

Follow the instructions in thecalibration section of thismanual for full details on howto do this.

Treat the electrode with careThe sensing tip of the electrodeis highly delicate, and should betreated with care. Dropping the electrode orletting it knock against surfacesor containers can crack thedelicate sensing surface.

Rubbing the electrode to clean itwill build up electrostatic chargethat will stop it from working -only clean by stirring gently incleaning solution.

Remember that pH electrodes do expire!Even with very good care, thedelicate nature of pH electrodesmeans that they do have a finitelife.

With the right electrode for thesamples and carefulmaintenance, we expect themto last around 12 - 24 months.

All electrodes will needreplacing eventually.

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Troubleshooting

65

Category Issue Suggested Solutions

Android System

(See also the “Android Hints andTips” section of thismanual, or the manual for yourtablet or device)

Basic Controls Activate the screen by pressing the power button lightly.

Either swipe up or enter the pin code or unlock pattern as prompted by the tablet.

Central icon (usually a circle O but could be a house icon if Android 4.0) – this takes you to the homescreen of the tablet from any other screen.

Back icon (usually a triangle or arrow pointing left) – this goes back to the last place you were.

Multi-screen icon (usually a square or could be 2 squares laid over each other on Android 4.0) – thisshows all the current open apps. Swipe them to the side to fully close them, or touch on them to bringthem to the front.

Identifying SystemInformation

Open the settings menu by swiping down from the top of the screen and touching the cog ion.

Scroll through to find the “system” section of settings, within this there will be an option called “AboutTablet” or “About” – here you can see the Android version, model and make of the tablet.

NB Android version 5.0 or above is required to run the TRUEscience app.

Changing TabletSettings

Brightness, auto-rotate and screen sleep timer can all be accessed through the settings menu, by drag-ging down from the top of the screen and touching the cogs icon.

A screen sleep time of 10 minutes is recommended for ease of use with the TRUEscience app.

Troubleshooting

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Category Issue Suggested Solutions

Android System(continued)

Accessing Settings Swipe down from the top of the screen to open the settings and messages.

This can include Android messages such as battery indications, apps due for updates, notifications fromapps.

You can access the tablet settings (e.g. screen brightness, unlocking method and security…) by touch-ing the cog icon.

There may also be connectivity settings (e.g. turning on and off data, WiFi or Bluetooth) in the dragdown menu.

Some tablets may have two menus accessible by dragging down from the top of the screen on the leftor right hand side.

Some tablets may require you to swipe down to access a short menu, then swipe down again to seethe full menu.

Identifying SystemInformation

Open the settings menu by swiping down from the top of the screen and touching the cog ion.

Scroll through to find the “system” section of settings, within this there will be an option called “AboutTablet” or “About” – here you can see the Android version, model and make of the tablet.

NB Android version 5.0 or above is required to run the TRUEscience app.

Troubleshooting

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Category Issue Suggested Solutions

Android System(continued)

Connectivity Airplane mode may be turned on, or WiFi or Bluetooth may be turned off – drag down from the top ofthe screen to see which are turned on and off.

Alternatively you can access this by going to settings (drag down from the top of the screen and touchthe cog icon) then go into “wireless and network” options, you may need to touch “more” to see allsettings. See which icons are turned on and off, touch them to toggle them on/off.

If connection issues are ongoing, turning the WiFi or Bluetooth connections off and back on can resetthese to resolve the issue.

Clearing the cache of the app may help – go to Settings (drag down from the top of the screen andtouch the cog icon) then in the “Apps” section find the TRUEscience app, touch on to open optionsand touch “clear cache”.

NB if you select “Clear Data” this will remove all historical records of calibrations, the electrode youhave set up, the cap you are connected to… you will then need to set up the whole app as if from thebeginning.

App help and awareness

App not able toinstall

Must be Android 5.0 or above – check this in the system information, see “Identifying System Informa-tion” in the “Android System” section.

You must have WiFi or data access to be able to download the app from the play store. If you do nothave access to WiFi you may be able to install it from an SD card – you will need to go into Settings >Personal > SecurityTick or turn on the option “allow installation of apps from sources other than the play store”

Troubleshooting

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Category Issue Suggested Solutions

App help and awareness(continued)

App has crashedand will not reopen

A hard force stop may resolve this. Go to settings (swipe down from the top of the screen and touchthe cog icon) then Apps and find the TRUEscience app. Touch on it to access options, and select “ForceStop”.

Now return to the home screen of the tablet (the circle or house icon) and try to reopen the app.

Accessing additional settings

Swipe from the left hand side of the screen towards the centre to open the additional settings.

Here you can see all visible caps, log in as a specific user, access the inventory, shop and help.

Accessing theAdmin settings

Swipe from the left hand side of the screen towards the centre to open the additional settings. Touchthe word “Login” to log in as the administrator and access advanced settings. See also the “User Ac-counts” section of this manual.

Admin and otherusers

On initial setup the only user is the Admin, which has a default access pin of 1485. You can change thispin after the first login by touching “settings” on the additional settings menu and touching in the“change PIN code” option.Once the administrator is logged in they can create new users and set their permissions. In the addi-tional settings menu on the left hand side touch “create” then enter the new user’s name and PIN codeto set it up. These secondary users cannot change calibration, buffer and probe expiry settings or change otherpeople’s PIN codes, they can only change their own PIN within settings.In the additional settings menu, touch “log out” to log out of the current user. Touch on the name toview a drop down list of all available users you may log in as, then touch login to enter the PIN for thatuser account.When you are logged in as a user it will be recorded against jobs, calibrations and logs to state whoperformed these tasks.See also the “User Accounts” section of this manual.

Troubleshooting

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Category Issue Suggested Solutions

App help and awareness(continued)

Viewing multiplecaps

On the multi-probe screen within the app you can see all of the caps that your device has ever con-nected to.

You can change the view between a list or a grid in the side menu bar – swipe from the left hand sideof the screen towards the centre to open the additional settings. Touch “show as list” or “show asgrid” to toggle between the two. Touch outside of the side bar menu to return to the multi-probescreen.

Getting Further Help Send a screen shot of the prob-lem to TRUEscience support team

Take a screen shot to show the support team exactly what you can see on your screen.

The method may vary by tablet but is always a 2 button press at the same time, either;Power + volume downPower + volume upPower + home button

Accessing in apphelp

Open the additional settings menu by swiping from the left hand side of the screen towards the centre.Touch Help to open the help screen.

Here you can view information about pH theory, full user manuals and a link to online help videos (WiFirequired to view these)

You can also touch the “live chat” to speak to one of our support team via online web chat (WiFi re-quired)

Troubleshooting

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Category Issue Suggested Solutions

Getting Further Help(continued)

Accessing otherhelp

Copies of the full user manuals and Quickguides can be accessed through the in-app help – swipe fromthe left hand side of the screen while in the app towards the centre, then touch “help” and select“manuals”

Alternatively access pdf copies of full user manuals through www.truescience.co.uk

Video help is available at www.truescience.co.uk/videos

Google Play Setting up thetablet

You will usually be prompted to set up a Google Play account – this allows you to download apps fromthe Google Play app store.

If you already have an @gmail.com email address you can log in with this, or create a new one for free.

You may be asked to enter a recovery phone number – this is strongly recommended and will allow youto easily get back into your account if you are locked out or forget the password.

It is strongly recommended to keep a record of the gmail address and password so that all persons whomay need to access the tablet can do so.

We have a video guide on this topic available at www.truescience.co.uk/videos

Tablet Hardware Battery going flatquickly

Leaving apps open in the background may cause the battery to drain faster – close apps by touchingthe “multi-screen” icon and swiping each open app to the side to close it fully.

Jargon Buster

Confused? No need!

This quick Jargon Bustingglossary will help make sense ofsome of the terms we use whentalking about testing, the app orthe Android system.

If there is anything you’re stillunsure of, just ask.

Our friendly UK based team areavailable 0900 to 1730 GMT;

Email; info@truesicence.co.ukTelephone; 01954 233 144

You can also reach us via thelive web chat available throughour website;www.truescience.co.uk

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Word Definition

Buffer A buffer (or pH buffer) is a solution which has a known and fixed pH value. Thismeans we can use them to calibrate the electrode, because we are definitely surewhat the reading should be.

Calibration Calibration is required on most electrode systems to allow the mV signal being sentto the electronics in the meter to be compared to known standards. This then allowsyou to measure samples and display the corresponding pH or concentration.

Device Your device is just another word for the Android Tablet or Smartphone. We usuallyrefer to the tablet, since this is supplied in the full TRUEscience kit, but of course youcan bring your own Android device which may be a Smartphone or a Tablet.

DI De-Ionised - normally associated with water. Although DI water is good for rinsingelectrodes to ensure no ions are present it should not be used as astorage solution.

Dilution Used when making up standards from a stock solution. Typically you will do a 1:10dilution of your stock solution followed by a 1:10 dilution of your first dilution.

Electrode A measuring cell that generally produces a small mV signal when placed in solutionscontaining ions or oxygen

Ion An ion is an atom which has gained or lost one or more of its valence electrons giv-ing it a net postive or negative charge.

ISE Ion Selective Electrode - an electrode which responds to the presence of specfifc ionsin solution. a pH electrode is an electrode specific to Hydrogen but other types aretypically used for things like chloride ions, nitrate ions etc

ISAB Ionic Strength Adjustment Buffer - these buffers are used to increase the signal re-ceived from an ISE when measuring low concentrations.By adding the same amountof buffer to your standrads and samples you incan increase the overall signal andsensitivity of measurement

Jargon Buster

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Word Definition

Standard A solution usually containing a known concentration of a species of interest. These tend to be hight concentrtionto ensure they are stable. When used to calibrate for ISE measurement they will be diluted to bracket theconcentration of the samples being measured. It is important when making standards that you use a matrix assimilar as possible to your sample.

mg/l milligrams per litre - this is often used to express the concentration of a standard and quite literally refers to thenumber of milligrams of standard material there would be in a litre of solution.

PPM parts per million - a common unit of measure for standards which expresses values as parts per million s op-posed to mg/l

Spares and Accessories

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Item Code Item Description

1201564 Battery, 1/2 AA size for cap

120145911448851144887

pH 4 Buffer Solution (RED)with smart QR code

250ml500ml1L

120145811449551144960

pH 7 Buffer Solution (YELLOW)with smart QR code

250ml500ml1L

120146011450081145011

pH 10 Buffer Solution (BLUE)with smart QR code

250ml500ml1L

11455141145513

Electrode Storage solution

500ml1L

Item Code Item Description1201711 TRUEscience Double

Junction Epoxy electrode (as supplied in the kit)

1201574 TRUEscience Double Junction Flat pH electrode

1201575 TRUEscience Glass pH electrode

1201710 Spare Battery Covers, packof 3 (Grey, Teal and Red)

1201813 Spare Battery Covers, packof 3 (White, Teal and Red)

Spares and Accessories

Item Code Item Description

1201708 Android Tablet with Bluetooth(may be 7” or 8” screen, different brands or colours, but always compatible)

1201562 Charging stand for tablet - includes mains power cable with UK plug, stand base and USBcable

1201563 Adjustable stainless steel stand for tablet (Please note this is a holding stand only and does not charge the tablet)

1201695

1201696

Storage Stand (includes 2x storage tubes)

Storage Tubes only - pack of 2

1201698

1202265

Replacement holding clip - White

Replacement holding clip - Grey

1201709 Electrode soaker bottle / Storage bottle

Storagestand

Storagetube

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Norman Way, Over, Cambridgeshire, CB24 5WE, United Kingdom

Telephone: 01954 233 144Email: info@truescience.co.ukweb: www.truescience.co.uk

Our UK based team are available 0900 to 1700 GMT from Monday to Friday