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7.    Frequently asked questions 

7.1  Our three most frequently asked questions 

1

 

How does Eijkelkamp dare to offer a three-year warranty that includes the turbidity, optical dissolved-oxygen, and 
pH sensors? 

I’m afraid it wasn’t for altruistic purposes. We simply looked at our repair records and realized that a three-year 

warranty will cost us a trivial amount of money. It’s a marketing edge, because the other multiprobe manufacturers 

can’t warranty their pH and DO sensors for more than one or two years. 

2

 

Are you guys really that good, or just a bunch of blowhards? 

Our customers maintain that we are both. 
 

3

 

You guys ever invent anything? 

Glad you asked. In its continuing effort to make your life easier, Eijkelkamp developed the first multiprobes with: 

1)

 

USB power capability 

2)

 

LED status indicators 

3)

 

standard memory and logging functions 

4)

 

a permanent calibration log 

5)

 

snapshot and automatic snapshot functions 

6)

 

custom-parameter feature 

7)

 

optical DO caps that never need replacement 

8)

 

turbidity-mimicking software 

9)

 

PDA-based data display 

10)

 

Bluetooth connectivity 

11)

 

Cell phone as a data display 

12)

 

a digital instruction manual 

13)

 

smart sensors that were actually smart 

14)

 

fool-proof logging activation 

15)

 

a full, three-year warranty 

16)

 

a cell-phone-based telemetry system 

7.2  Sensors 

1

 

How do I know which sensor is which? 

Please see 4.1.

 

2

 

How do I know when I need to maintain sensors? 

Judgment gained from observing your field conditions and data requirements tells you when to maintain sensors. If 
you are logging data over long periods, the time when you collect your data from the Scuba is a good time for 
maintenance and calibration (2.10). 

3

 

Why is it important to check SC reading in air? What should it be? 

A well-dried SC sensor should produce a zero reading in air. This lets you know that a one-point calibration is 
adequate. 

4

 

Can I see the slope calculation for pH? 

Sure you can – just look at the mV readings in your calibration log. But there’s no need to do that with your 
Eijkelkamp  multiprobe because the reference electrode seldom need replacement, i.e. you need only monitor pH 

Содержание Scuba

Страница 1: ...3 88 02 00 E info eijkelkamp com I royaleijkelkamp com 2022 07 M Scuba Scuba and Scuba Trimeter water quality probes This manual covers the Royal Eijkelkamp water quality probes Scuba and Scuba Trimet...

Страница 2: ...ete a custom parameter 18 3 6 Software updates 18 4 Sensors and calibrations 19 4 1 The difference between sensors and parameters 19 4 2 Basics of parameter calibrations 19 4 3 Choosing calibration st...

Страница 3: ...ns ScubaLink App 44 7 Frequently asked questions 45 7 1 Our three most frequently asked questions 45 7 2 Sensors 45 7 3 Calibration and maintenance 47 7 4 Communication and software 49 7 5 Deployment...

Страница 4: ...one 3 The storage calibration cup protects the sensors when the Scuba is not in use keep a few ounces of tap water in the storage calibration cup when the Scuba is not being used And with the lid remo...

Страница 5: ...w opens click Install Scuba software to upload the Scuba user interface software and the USB driver software onto your PC Depending on which version of Windows you are accursed with you might have to...

Страница 6: ...ur Scuba to the USB adapter using either a Scuba data cable or underwater cable Click the Scuba icon to connect your PC and Scuba The home page will appear showing the Scuba s real time data and vario...

Страница 7: ...onductivity reading to stabilize 4 Click the Scuba pull down menu on the home page and click Calibrate and then click SpCond on the next screen 5 Type in the approximate conductivity of your tap water...

Страница 8: ...eks at a time with cable supplied power or an optional Scuba integral battery pack You can for instance set the instrument to take a set of readings every half hour anchor it in an estuary and return...

Страница 9: ...ed on the Amphibian 3 mirrors the version for the PC with some concessions for the small screen Section 5 has more information about small screen data displays 2 6 What do the LED lights mean The Scub...

Страница 10: ...els etc 2 9 Flow cell If it is more convenient to bring the water to the Scuba than the Scuba to the water for instance when monitoring a ground water well you can simply screw a flow cell onto the Sc...

Страница 11: ...11 3 The Scuba control software 3 1 Scuba control software map...

Страница 12: ...s are These two buttons are pull down menus These eight buttons are hot buttons short cuts to important and often used functions This area is continuously updating real time data from your Scuba The b...

Страница 13: ...data to PC with annotation hot button to save the most recent line of data as shown in the yellow band on the home page to your snapshot file along with a brief note that you might wish to append to...

Страница 14: ...e active snapshot file location is listed on the bottom line of the home page 3 Click Automatic Snapshot if you wish log data automatically and quickly for instance to catch a transient situation or i...

Страница 15: ...n your Scuba Highlight the file you re interested in by clicking on it Then with the other buttons on the screen you can then view that file on your data display screen delete that file or export it t...

Страница 16: ...he check mark and disables that parameter Note that if you enable a parameter but don t have a sensor for that parameter it would be a huge coincidence if the data were accurate The order of the enabl...

Страница 17: ...viant SRF and you will be returned to the home page If you click on Cancel you ll go back to the calibrate screen How do I know if I need to calibrate The simple answer is that frequent calibration wi...

Страница 18: ...is the same measurement as Turb NTU except altered slightly to make its true ISO 2027 response linear with formazin 2 The Sensors and Parameters List now contains the parameter Turb_Mod which is the...

Страница 19: ...ater especially if you have been using other calibration solutions Pour the water into the calibration cup position the stopper side of the lid on top and shake the Scuba vigorously to remove traces o...

Страница 20: ...pH reference 2 or 3 points pH 4 pH 7 pH 10 pH 7 pH 10 most common ORP 1 point ORP Standard 200 mV Conductivity 1 point CD Standard 0 5 Molar 58670 Micro S CD Standard 0 1 Molar 12856 Micro S CD Standa...

Страница 21: ...80 When you press the OK button to accept a calibration the Scuba automatically accepts your calibration if the SRF is between 60 and 140 If the SRF falls outside that range you will be cautioned to...

Страница 22: ...manufacturers of optical DO sensors recommend that you not calibrate the zero DO point However we support zero DO calibration in the Scuba software and think it s a good idea to check your sensor s z...

Страница 23: ...te the voltage measuring circuit The pH glass is specially formulated to absorb water so that ions particularly H and OH in the water are attracted to the glass to offset the ionic constituency of the...

Страница 24: ...e measuring circuit Because platinum does not react with ions in the water it won t give or take any electrons from those ions unless they are very persuasive The potential voltage created by this ref...

Страница 25: ...at 90 to that beam More particles in the water mean more of that light is scattered so the turbidity reading is higher Any material that accumulates on the optical surfaces of the turbidity sensor is...

Страница 26: ...ody and sliding a fresh brush into the brush slot as shown below Use the first Allen wrench from your wiper kit to remove the standard turbidity sensor wiper Use the other Allen wrench to install the...

Страница 27: ...st not to let your ISE dry out so place a small amount of tap water in the storage cup to ensure 100 humidity The sensing elements tip for nitrate and ammonium ISE s have lifetimes of about 90 days Th...

Страница 28: ...ry out the membrane between stations by using only a few drops of water in the storage cup instead of a few ounces 4 17 PAR The PAR Photosynthetically Active Radiation sensor measures the amount of li...

Страница 29: ...tric Pressure BP if you have a Clark or optical dissolved oxygen sensor so click on the Set Barometric Pressure button it s in the Calibrate menu You can set the BP by typing the correct value in mm H...

Страница 30: ...the Scuba logging time uniformity For instance if your logging interval is 15 minutes and you turn logging on at five minutes past 10 AM your first data will be logged at exactly 10 15 and then every...

Страница 31: ...ght ways to power a Scuba 5 7 Logging with an Internal Battery Pack All Scubas may be ordered with an optional Internal Battery Pack IBP a watertight housing with a cassette for batteries that is perm...

Страница 32: ...isture dirt grit and any other debris off the exposed O ring surfaces and the inside of the battery sleeve Add a small amount of silicone grease to the O rings and to the inside of the battery sleeve...

Страница 33: ...5 8 When you are ready to deploy the Scuba turn the battery switch to ON And turn the switch back to OFF when you retrieve the Scuba 9 Remember to look for the red LED to blink five times to confirm t...

Страница 34: ...n all moisture dirt grit and any other debris off the exposed O ring surfaces and the inside of the battery sleeve Add a small amount of silicone grease to the O rings and to the inside of the battery...

Страница 35: ...s six pins with a gap in the outer circle of pins 4 Line up the white dot with the gap in the connector pins and slowly push them together Very little force is needed 5 Grasping only the Scuba and EBP...

Страница 36: ...ur specific application We recommend using the highest quality alkaline batteries available such as Duracell Copper Tops Rechargeable batteries can be used but their battery life is typically only hal...

Страница 37: ...he sensors in copper ions that discourage biological growth 2 The extended turbidity brush attaches to the turbidity sensor and cleans the measurement surfaces of several sensors including the Turner...

Страница 38: ...get you through a full day of field work The Bluetooth battery s Bluetooth address is shown on a label on the back side 6 4 Establish Bluetooth communication Follow the directions below for establish...

Страница 39: ...to MORE Smartphone or tablet and select Android Scan Filter Clear any settings in field Select OK Go to the Bluetooth SETTINGS on the data display and select the Bluetooth ID of your Scuba Bluetooth...

Страница 40: ...40 Snapshot Files Create New Snapshot File View Snapshot File Contents Snapshot Annotation Home Page Snapshot Menu...

Страница 41: ...41 Snapshot Report Calibration Conductivity 1 Calibration Conductivity 2 Calibration Acceptance About Amphibian Software Version Calibrate Menu...

Страница 42: ...42 Set Scroll Interval Calibrate Set Time and Date PC Sync Report Calibration Barometric Pressure 1 Calibration Barometric Pressure 2 Sensor and Parameter List...

Страница 43: ...43 Graphs Turned On Manage Scuba Files Logging Setup Interval and Wiping Logging Setup Browse Logging Setup Interval and Wiping Scuba Scuba log Scuba...

Страница 44: ...44 6 5 2 Screens ScubaLink App...

Страница 45: ...ical DO caps that never need replacement 8 turbidity mimicking software 9 PDA based data display 10 Bluetooth connectivity 11 Cell phone as a data display 12 a digital instruction manual 13 smart sens...

Страница 46: ...replace DO caps haven t you It s OK lots of people have been in the same boat Now that you are a Scuba owner you can expect your DO caps to last five years or more You can see the condition of your c...

Страница 47: ...n with a high range turbidity standard 4 3 4 What is an SRF Suppose that a typical conductivity sensor reports 100 A in a 1413 S cm standard If your particular conductivity sensor reports 100 A in tha...

Страница 48: ...about 1000 S cm then calibrate with the readily available 1413 S cm KCl standard Note that some sensors not SC have two calibration points the second point should be set at a convenient low point usua...

Страница 49: ...st people should never have to worry about choosing a COM port just let the PC do the work 3 4 5 Is the coloured top line an average of the values or the latest readings No the data in the coloured ba...

Страница 50: ...l components regardless of how many sensors you order Most importantly we have a no cramming rule that prevents our stuffing too many sensors into an artificially small instrument diameter Yes we know...

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