 Thank you for those that are right on time or just leave it another Minute or so just so we can get all of our participants come in and then we'll make a start Okay, we've got 15 there. So we might make a start So once again, thank you all for joining us here today on another of our Hydra Terra webinar series I Was seen continually some amazing to announce to these presentations, which has been amazing to see so Thank you all for your time today For today, we'll be going over some of the more common questions I receive Pretty much almost on the daily for the selection sort of set up and installation of the level loggers in particular level of five series now And just some considerations when making these decisions for your your projects or for your clients So as always we're joined today by Michelle Canson now general manager at Hydra Terra who helps me make all these presentations happen, so Thanks Michelle as always for your continual efforts here on these on these webinars For those of you don't know my name is Kyle McLaren. I'm the sales manager here at Hydra Terra And I've worked with the silence equipment now for nearly four years. I had some formal training Over with solace in Canada and I've utilized the loggers on numerous projects that we've had throughout that time So just a quick bit of housekeeping before we get into it You'll see during this presentation as we always have there the Q&A button on your screens So feel free throughout this presentation to Type any questions you may have for me and at the end will allow a bit of time to go through all of those I will endeavor to get through most if not all of the questions But if whatever reason we simply run out of time or it's going to be over I'll make sure that I get in contact with those people that I don't get to So as always, you know for our webinar series we look to generate The awareness and share our knowledge of the technologies To ensure that our clients are up to date with the latest and greatest in monitoring methodologies and technologies An important one Is that we always want to hear from you guys What your requirements are and if we have any solutions for the more sort of trickier projects or if there's Some specific solution that you need or have ever heard About that we we don't know We're a you know a route to market business and we're always on the lookout for new exciting products to offer to our Entire client base. So feel free to reach out and my details obviously be at the end of this presentation So as I mentioned earlier We'll just be going through today a few considerations and the main sort of questions that I get asked When starting to look at the silence loggers for a project And mainly just some major considerations on these units. We'll go through which loggers to select Some of the setup options and some of the various ways you can install these units and the methods in which to Obtain the data at the end of the day and just get a few I've got a few screenshots from the silence software On how to actually download the data and do just the basic compensation and just some common things to know actually within your silence software that you've got So we'll start off with the logger selection. So Sort of graphic here and the consideration is goes without saying but the parameters what parameters are we wanting to look at here? So in terms of the silence level log of five We have a non-vented level the temperature dc barometric pressure in the barrel logger Precipitation with our rain logger connected to a tipping bucket and obviously our vented level For the level of the five You obviously get the non-vented level and temperature in the one unit For the LTC units the LTC stands for the level temperature and conductivity So you do get that added ec in there with your LTC fives The barometric pressure obviously these units are With the exception of the vented obviously level absolute sensors. So They will measure the column of water As well as atmospheric pressure. So we do need to do that Barre compensation the easiest way to do this is obviously is with the barrel logger for for the silence level of five so We are able to just do a quick compensation in the software with the barrel logger data And just to get that that level of water measurement The rain logger five As I mentioned it's sort of compatible with pretty much any tipping bucket with a sort of a pulse output So that will just allow you to give you a You know a time-stamped tip And count From your tipping bucket With the same connection Capabilities as with all the level logger series. So that's an iffy little tool there for the level Vented so I'll suffer the level vent five and the aqua vent The level vent is a bit of a newer Series to to add in there that they've that they've put in They've just changed a bit of the design and previously the aqua vent was the only Vented solution that silence had for a long period of time but as of About a year or two ago they changed a design to the level vent a lot more streamlined and allows us to Have a bit of a discreet setup on top of the bore for a vented level I've also put in there some telemetry options as well just down the side of the page I'll talk about them a bit more in depth in a minute But the level sender obviously for 3g 4g A radio telemetry that silence does offer And just important to note that a lot of these can be Done with sdi 12 through a converter into Some third-party telemetry solutions, which we've done for quite a few sites around os so probably the main Questions that I would always ask If a client comes to me and says I need X amount of loggers Sometimes they just say all they need is X amount of level log of fives My first question is always what submergence rating do you want and sometimes that's an easy Question for people and sometimes people don't know So the important thing first is just to realize What submergence ratings are available for the level loggers So with the level log of five we have a 5 10 20 30 100 and 200 meter Submergence rating and that is the meters head of water With the level of five junior The juniors are more of a economically cheaper option for People that are wanting loggers, but might not have the budget for the level log of fives in their project So the juniors are just an option there Which coming on five or a 10 meter submergence There is a couple of other differences in terms of warranties and Storage So how many data points you can have on these loggers, but there's a graphic in the next slide that will put this a bit more in depth the same submergence ratings for the LTCs and a 5 10 or 20 meter submergence for the vented loggers there, so It's important tonight to If if you're wanting whether it's a 5 meter submergence or a 200 meter submergence There's no price difference in terms of submergence ratings. So It's really just whatever you you're comfortable with selecting In your level of it to get the greatest accuracy, which we'll talk about in a second So the accuracies the absolute You know a common question I get asked is what's submergence rating should I select You know as I want to maintain sort of the highest accuracy I can without overpressurizing the logger Now, so when we talk about Which submergence rating to select I always say to people that it's best to match As best as possible where you want to sit your logger inside the bore with its submergence rating Without running the risk of sort of overpressurizing Overpressurizing is okay with the loggers On a on a few short events. So don't be afraid if you've selected say and A 10 meter submergence logger and you get a high rainfall event and Goes up to, you know 12 or 13 meters above the sensor. That's okay. They're actually pressure rated to double What's what's on the logger itself for those exact instances? So don't be scared if there's a couple of readings inside there that A bit over the submergence rating the the loggers will will mostly be okay if that occurs Um, as we see from the table here the important thing is is that Uh, the lower the submergence rating of the logger obviously the greater the accuracy Um, we also see the resolute the resolutions here Of the loggers getting more Uh responsive the lesser we move, you know up the submergence rating table So what's the difference between, you know, the accuracy versus resolution? Well Actually is basically uh, how close The reported value So it is to the to the true value being measured Whilst, you know, your resolution is the smallest change in the value that can be measured The fs there is is is for full scale So that refers to the total scale of each of the submergence ratings on the loggers. So for example, they're, you know 0.001 on the m5 that's 0.01 full scale, which is five meters of the submergence of that logger and just some Considerations but similar accuracy with the vented loggers As I said before, that's the graphic of the of the new design of the level vent So We'll show you the graphic of the aqua vent shortly To see the differences in the design there So this little table which Sort of important to note too, but everybody at this presentation will get copies of these Slides, so this graphic is one just to add If always important to add it really just breaks down Sort of everything for you As to help you select what what best logger to select For your project. So we have the accuracies this emergence ranges. What's available Your sampling rates. So how quickly could I You know obtain a reading? So for things like your pumping tests and that sort of thing you can get you know up to an eight to the second with the level logger fives So that's that's really quick Obviously your memory In your thousands of data sets. So recently with the change from the 3001 edge to the level logger fives Solids to have increased the memory capacity of those So previously They're around 40 000 Now we see that they're they're up to around the 150 000 mark with the level logger fives And also a battery estimate as well. That's very common one that I get is a battery life in these loggers In the selection table there you see that with the level logger five for example, you have a 10 year battery life It's important to note that that's obviously based on one minute sampling rates You will get a notification in your science software When you're changing your sampling rate as a bit of an estimate as to how long that will sort of last So when you move down into the seconds range, you'll get you'll get an example estimate of of how long Your logger will normally be able to last As same as if you went to days or or even months Rating So you can get quite a long life out of these guys With the 10 years based on a minute Sampling rate and of course your warranty period as well Which is three years for the majority Of the loggers apart from the level log five junior as I mentioned, which is just the one year So that table is a very good sort of breakdown for a selection consideration there So they're logger setups Let's do an overview here. So We'll just talk about You know the updated optical connections um A lot of people have seen between the transition from level log fives to You know, sorry transition from the 3001 edge to the level log fives There's a little bit of confusion around The new optical connections with that With the case of adapters that are required if you have a lot of hardware in the 3001 edge series so We'll be able to just talk a bit about those new readers with the level log of five series and we'll just talk a bit about the configuration of The actual setup within the software itself so The biggest change that i've seen which coming back to those connections Is obviously the transition with the level log of five With these sort of large Optical eye as you can see there That's different to obviously the the edge units There with the two two optical eyes And previously there was a little pin there and that used to get Lost a lot of the time So the design to have this larger optical eye Is the main sort of change with the level log of five series So because of that When people are wanting to Get some new level log of fives, but they might have 3001 edge hardware Such as the optical readers and that sort of thing. There's just an adapter that we can use to plug into your newer Blogger series to be able to read with all of your older hardware that you have And also vice versa as well So if you have new level log of five hardware And maybe a couple of new loggers, but you might have found some old 3001 edge units There's also an adapter to be able to take the connection of the edge and to be able to read onto the level log of five hardware as I mentioned before this sort of three options for the usb connection so now You might remember these are being called as optical readers. So I want to now call these the desktop reader I'm essentially the same the same thing Just a different name and obviously with that direct connection to the level log of fives A nifty little one that's come out recently is the field reader So that's just like a slip fit Straight onto the logger with the usb Rather than having to tip the log upside down and and sit that sort of optical reader on a flat surface When you're out in the field that feed reader can be quite handy and also quite handy with calibration of say your LTC units, which I'll talk about in a minute And obviously as always we have a pc interface cable here That's for when we want to read from our direct read cables that are connected to our Our science loggers that are sitting down hole so that Allows us to leave our loggers down in the hole And simply read from the surface with that pc cable I'll talk a bit more in depth about this in a minute Probably just to mention In here is the infield communication options. So Aside from the pc interface cable that I mentioned Which is just a usb straight into your laptop There is the two options for infield communication to save you having to take A laptop and that's the data grabber Five and the level logger app interface Um, so that will allow you to connect up through the use of obviously the direct read cable leaving the loggers in situ Now that will allow you to connect either the data grabber or the app interface Uh up to the surface and be able to obtain your data That way without having to take so your laptop out into the field The differences between the two here is that the data grabber is More simplistic One here where it simply relies on a usb You can use any usb you like it's not It's not required that you need a silenced usb Um, that just allows you to simply take the data grabber and usb along to all of your Loggers at a down hole and connect that up Connect to usb in and just click a button and or download the files Onto onto that and you can take that back to the office and then play around in your software from there Um, the more advanced sort of option for the infield is the app interface That's a bluetooth App interface there that you can screw on to the top of In the graphic either the direct read or the vented cable Uh, you can do that you can do so with the data grabber as well, but with the app interface That's just a bluetooth connector to allow you to connect to a phone or tablet Which can bring up the The app on your phone Let's say it's more advanced because you sort of get a full glimpse of You can start and stop your logger you can view data In there you can export your data via mail directly back to your home base You can see what's what's going on with a real-time view Um, so that's a pretty nifty a little device there Um, and this graphic here it's, uh Quite complex, uh graphic, but um, it's just a good way to explain sort of the connection options Uh with the with the loggers. So Uh, if logger retrieval is required meaning that do we need to pull the loggers up to obtain our data? Well, we simply just need our loggers A desktop reader into our pc Uh, if we want to retrieve our loggers, uh, and we have a app interface or a data grabber There is a sort of short thread of adapter that we can chuck on Uh to the level loggers to be able to utilize a data grabber and the app interface Um, so whether if you still have to retrieve your loggers Uh, you can simply take the thread of adapter and your app interface or data grabber with you out in the field rather than a laptop Um, and that'll allow you also to connect to the pc interface cable directly instead of a direct read cable here So when logger retrieval is not required Uh, basically we go to a direct read cable where we sit our loggers in situ and we can leave them there and read them from the surface and that sort of opens up, uh, a lot of Flexibility for us there. So when we have the direct read cables, that's basically our connection from down hole to the surface and then from there, what do we want to do? Do we want to uh manually go out and take the data With the data grabber with the app interface or even a pc cable to the pc Or do we want to look to telematize this? So, uh, with the level sender Which is a 3g 4g little pocket telemetry That sits discreet inside the well there Um, I'll talk a little bit about that in a second But it's a neat little graphic So the configuration, uh, once we've connected our logger by whichever means This front page here is uh, is what you'll see when you Click on your silent software in order to Retrieve our logger data. We simply need to connect our Logger up to either our desktop or our field reader or pc whichever method we're using Obviously outside of the data grabber in our interface Um, and then that way we're able to see when we click the Obtained data button at the top here our logger will come up Uh, obviously we have our our location or bore ids our project ids which you can fill in And that's related to whichever log you've programmed it onto We have sampling modes here Which I'll talk a little bit more in depth in a second Your sampling rates as I mentioned which are fully tangible. You have seconds minutes hours That sort of thing our memory mode When we say memory mode here being slate or continuous Slate mode is generally the Default memory mode. Uh, what that means is It'll obtain all the data all the free memory in this case up to 150 000 and then stop And it won't obtain any more data if it's reached its capacity Whereas with continuous What will occur is that it'll go all the way to its capacity And loop back around and start from Reading one again and sort of overwrite that data and So nine times out of 10 most people will generally do the slate mode and Depending on your sampling rates, you know, you'd be hard-pressed to sort of max out the memory capacity there on those loggers Anyway, so generally slates the the default sort of setting But obviously the options there for you There is a future start and a future stop function on the loggers so You can synchronize your data logger, which is obviously something again very important to do when you're when if you've got a new logger Important to synchronize to the time and sometimes people forget that But a future start You can start it at whatever date you like whatever time you like And stop it at whatever date you like whatever time you like So that's kind of handy if you wanted to have it In half hour increments or something like that and you're not quite on the half hour when you're obtaining that Logger or starting that logger. So that's a nice little feature. I'm coming back to the sampling modes your linear Mode is obviously again the default mode. So you simply selecting your sampling rate And however many, you know, if it's seconds 60 seconds minutes, whatever And as soon as you click start that'll then start to log Straightaway into whatever increment you've selected here If we're talking about event based sampling That can be nifty for something like You know a dry creek bed or something that you're wanting to get a rainfall event captured So it's okay to leave these exposed and dry. I should also mention for a period of time But you can say to the logger, you know, if if readings sort of get to you know, even 10 centimeters or 20 centimeters above the sensor, I want to start reading I want you to turn on and start reading at whatever sampling rate you select And then which is a nifty little feature and the schedule is If you just want to segment these sampling rate times So for a period of time which you can select, I want to measure every 30 seconds And then for a period of time, I want to measure every 30 minutes or and then I want to go to days Just to capture an event or something like that So once we've programmed all these particular things Then we simply click start and away we go. We're off I'll just couple a little quick configuration notes here on these With the rain logger. So as I mentioned before It's just requiring constant value of the tipping bucket In our rain logger there and again as I mentioned the same connection capabilities with all the loggers Compatible with pretty much most tipping buckets with the policy output Yet to find one that's not compatible with That gives you a timestamp tip and date One thing I should mention with the LTCs Is that this comes as a surprise to some people but calibration is of the LTCs Is something that people should be doing The level logger fives The LTCs have a 100,000 micro seamen conductivity range And calibrated range From 50 to 80,000 So that can be calibrated up to four calibration standpoints And as with most sensors that have a parameter we need to calibrate after a round of sampling or at least twice A year so that's something that I've mentioned to quite a few people and they're a bit surprised at and they've had LTCs for a long period of time and never calibrated It's just important as a maintenance kind of thing to kind of get the most out of your Out of your loggers and the most out of your accuracy parameters So we just want to calibrate at least two points In the range we expect You know in this case ec to be Given the project that we're at So with the calibration rates, you know, there's a 14, 13, 5000, 12, 8, 80 If we're expecting calibrate if we're expecting ec ranges within that then we need to calibrate One below and one above To capture that So when these project these slides are given to you guys, there's a good link here that Solonso put together a video That Really steps you through the whole process And in the software itself there is simply a what's called the calibration wizard Which is that's all so the calibration with when you connect an LTC a calibration wizard tab will come up here And then that will really just take you through step by step on how to actually calibrate your Your LTC loggers So we move into the logger installation Uh, yeah, so with overview there. So this is a pretty a good sort of side view of the bore Here on sort of an ideal deployment Um When I say ideal we probably want our barrel loggers to be a lot shorter In the well, uh, so as just to avoid any sort of submergence. We don't want to ever Submerge our barrel logger But this is just really to Explain, you know, the the the two most common deployment So on a stainless steel cord With some swages or as I mentioned before that direct read deployment where you can leave your loggers in situ and get your data from the surface um The most common question I get uh, and sort of the most thing that I see is if I have A bore that's for example 30 meters deep and my screen is that You know 25 to 28 meters do you know, I should sit my logger Uh in that screen and so I might need an m30 or something like that Not always necessarily the case um The main thing I always look for is actually my fluctuation in in the bore itself Uh, so how much am I expecting that standing water level to differ in the bore? so If I have a bore log and I have I have a known depth of this You know total depth of this well And I sit my logger You know an m10 maybe five meters below the standing water level knowing that I I won't get You know it running dry. I can just monitor my levels There and then by taking my data from my total bore depth. I can still work out the standing water levels Um, that's probably just the main confusion there that some people get That's obviously different when you're looking at uh an ltc um, we definitely want to Sit the the ltc's uh at the screen. So we are actually able to capture Uh a clear sort of representation of the aquifer on its ec levels So when you're talking about if you're wanting ltc's as opposed to just the level loggers Then then obviously sitting it in the screen is is important That's just a common one that I see I'll talk briefly about the locking well caps so It's sort of a common deployment for the silenced Stuff so they do have these sort of slip over 50 mil and uh a reducer adapter to go onto the 100 mil bores So the cap here is lockable. Again, it's only lockable if you Actually glue the slip fit over the bore I have seen that in the past where people do lock the caps But they don't glue down the the well cap So that's just something to keep in mind Uh with the with the well caps as you can see from the uh a little schematic here that we were able to fit Uh are the two direct read cable outputs Or one with a with a gap there for allowing a water level meter to to go down. So the typical Top of the well cap there would be a barrier logger and your level logger down at depth Uh what for other instances you might have uh a level logger with for the rest of your bores Um and just a expose hole there so you can get a dip meter down to do your measurements Um This is uh probably the main Schematic that I'll talk about here in terms of Deciding where to sit your logger um Important to note that The zero point On the logger is these Two lines here. So if you're looking to measure your stainless steel cables and you have an idea of where you might want to sit those Loggers um always consider that your zero point is at that line there Um, so as I mentioned before In terms of barometric compensation. Well, what is the logger actually measuring? The logger is measuring the height of the column of water plus the atmospheric pressure Uh as well So that's the reason for our barrier logger is that we want to Ensure that when we're setting up our barrier logger, uh, we're setting it up in the same If possible intervals as we're setting up our level logger. So that way we can do a really easy and quick compensation To minus that atmospheric pressure to just give us our height of column water here Uh, which represented by h So ultimately at the end of the day, that's what we're after um and a very good Tip there and as I always say make take a manual Water level measurement before and after you install and uh, you know Take a manual measurement when retrieving and downloading your data. That just gives you Some reference points when you're looking at your data. So always always important to Just make sure you're taking those manual measurements as a guide To to when you're looking at your data to ensure that you're getting You know, your your log is actually getting the right the right measurements. They're always important Uh for the telemetry options, um spoke a little bit about telemetry before But we'll run through the the level sender five just quickly So the level sender that said is a bit of a discreet sort of 3g 4g little pocket modem that just runs on Uh any standard sim that you can obtain any sim you like From from anywhere. It's just an email or sms. So it can send your data um on a scheduled Sending rate to to whatever email or mobile phone that you select You have a home station that has your as the email that you've opted to get the data sent back to if you're wanting email Or If just mobile phones you will send that at whatever schedule rate you want back to your mobile in just a text format So it is low cost and compact and a neat little One to to look at if you have a couple of bores that are quite remote that does have 3g 4g area of service And might take a bit of time to get out to site just to read your loggers. That's sort of been it's it's niche there When we have large multiple Ball Areas where there's quite a number of bores You do need one of these level sender units per ball. So If it is sending data through to email or sms You just get just have to take into consideration that if you had You know 50 balls with 50 level senders and you've set up a sampling rate with a home station Then you will be receiving 50 sets of data At a given interval. So when you get multitudes of these it can start to look at other options with the telemetry But for the more Smaller sort of areas and that sort of thing. That's that's where this sort of shines through I mentioned before that with the sdi 12 converter That will allow us to convert the language of the silence logger into a general format So that can allow us to start to connect to other third party telemetry systems And also another consideration which we've done for some wine so that's before is the radio If if 3g 4g isn't available on site so The remote radio link is a nice little Unit that is sort of like a daisy chain. So it has to have line of sight with You know other other units and it would simply beam back to our home station Which also has an rl in it that will allow you to obtain Your data if for whatever reason there's Topography issues That one boards on one side of a of a hill and one boards on the other side There is relay stations that you can deploy to to obtain that line of sight But that's just another option there that science does provide In terms of a radio link for that telemetry I think we'll have a bit more of an in-depth telemetry Talk In another webinar coming up quite quickly So i'll be sure to mention that and get that Invite out to everybody And just fly the data download and then we'll go into a bit of maintenance The data download when we're connecting our logger to the pc Again with the reader or pc interface cable important thing to do And the main one I say is when we get back to that home screen that I showed you before Once you've obtained your logger if you Wanting to put that logger back down the hole and keep the data that's on there It's important to not click stop If you click stop on the level logger And then obtain your data and then click start again It'll prompt that it will erase all the data that's previously been on there And start from refresh again So it's important that if you're just wanting to take a grab of your data That we go to the data control tab, which is the second tab in the level logger software And we actually click this arrow with the blue line, which is a download data Which will download Your view which will bring up, you know this here and then allow you to play around and view it Um if for whatever reason you mistakenly Stopped the logger and And started again when you really needed that data. It's not the end of the world. There is Almost an emergency memory on these loggers that we can Obtain the data at the end of the day So it has happened and we Can get that data off you if it's crucial and you just made that mistake Um, so if we want to save our data in xle or lev format Uh, we just simply click this tab here that allows to save it wherever we like Once we pulled it up and we can see what's going on in the software Um, and if we want to play around in a csv format for xl, that's when we click our export data tab that's uh Important for people that want to play around with their data or compensate it without the use of the barrel logger And take some sort of bomb data that they have there. Um, that just gives you that capability to be able to Get it in an xl format and have a play around So the compensation This is one that gets trips people up sometimes As I mentioned before with your if you have a barrel logger Important to Synchronize your your logging of that barrel logger to whatever Your loggers are doing downhill And that will allow us to do a really quick basic Barometric compensation. It does work if it's a little bit out, but really basic compensation is the one that I Will always use The really the only need for an advanced Uh section is if you wanted to you know include rain data rain logger data, if you had any form of Parameter adjustments that you wanted to do it says there Or if you have an older unit and you know that there's A little bit of a known offset with your loggers. You can add it in there, but Most of the time a basic compensation will be kind of all that's really neat Um, so that will just allow you once you click basic compensation and click next Uh, there'll be a screen that has two Folders that you literally click And drag a barrel file click and drag a logger file and click compensate and it'll spit out Uh back to something that looks like this Sorry Uh, yeah, something that looks like that With actually your compensated data Um So finally we'll just talk a little bit about maintenance a little bit about the questions always get asked So important to inspect inspect your loggers regularly And replace the o-rings if damaged if you see them we have plenty of those in stock here At hydratera Cleaning the optical eye now that it's moved from The the two optical eyes To the one larger one It's not necessary to say that that's a lot easier to scratch. It is quite resistant Now sort of cover on that larger optical eye But we still sort of say if you need to clean that just use something soft Cotton swabs or something like that Previously we're having connection issues with the level logger edges because there'd be some dust build up in those Two optical eyes with a little bit of a ridge there and now that's sort of been eliminated. That's really helpful for that Our communication and now you no longer have to line up the The two optical eyes in the edge units to be able to Get that common through to your software And so yeah use a soft bristle brush or something like that um Try not to poke the if you have a build up in those Islets in the in the logger down the bottom with it near the zero point You know try not to poke anything through there try and clean it out A good thing to do is to use sort of a low acidic solution almost like a Like a one part to nine part water even just table vinegar works well And have that sit in there overnight if you have really bad sort of build up in those islets That'll allow it to just break down and you'll be able to wipe through wipe off any of that And I typically use a A squirt di bottle a dino's water bottle to To get any other sort of build up in there If you start poking around in the At the zero point, then you run the risk of potentially damaging that filament The actual pressure sensor itself Before we do our calibrations and that sort of thing we'll Obviously clean the sensor pins Uh before our calibration and after deployment Um Stop the level logger before storing that's uh pretty straightforward Um And yeah, just Storing the level loggers away from sort of extreme heat or cold. So just be sure when you're storing your level loggers You know, don't put them in a shipping container that's out in the middle of the You know the field when in the high heat source or now below freezing is probably not something we need to worry about In os but um, yeah, just an important note there for the storage of the loggers Okay, so we'll just go through a few questions now and I'll bring up The questions we have a few questions here from people So shan tom has asked is the battery replaceable The Short answer is No, the long answer is yes The battery is replaceable however It is a bit tricky and we have to send that unit back to science to in order to replace it Um, there's two things with that. Uh, there's the freight cost obviously to send the units back to replace the batteries the timing where you might have a A period of time where you're not getting any data there Um, and obviously the cost to send the unit back with the batteries So at the end of the day it almost comes works out to be almost three quarters of the cost of The logger if we want to replace the batteries. So yes, it is possible Um, but we sort of advise that if if you need to replace the battery It's probably more advisable to replace the unit As I mentioned before there is a three year warranty on these so you do get a long a long sort of life out of them If we have a battery failure or what for whatever reason Generally, we'll look to replace the units rather than replace the batteries. Um so that's probably The way that we'd go about that Sarah dakin has said Do you have to be really careful with the optical reader such adapter to keep it dry and clean? Um No, not not super careful Um, previously the only issues that I was that I would have with the optical reader would be obviously as I said those two Um Optical eyes that would be a bit tricky. Uh, sometimes if I'm out in the field I have to find a flat surface and hold the the logger Really still to try and get a connection And if there's any debris inside those holes, I can make it a little bit tricky to To connect with that. Um, but with the new design That's allowed it to be a lot easier and takes that out for the actual optical reader itself You know, it is advisable. You don't want to drop it in a bucket of water But if there's a little bit of rain or something on it, that that's generally okay Um, so I need a barrel logger for every well. It's a great question Matt No, uh, one barrel logger will Do you for a 30 kilometer radius? Now that does differ if for whatever reason you're in Different elevation zones. You might need more Barrel loggers, but one barrel logger data can compensate any of your loggers that you have around in an area of 30 kilometers so That's uh, that's a great question. Thanks Matt If the battery dies Matt's also says the battery dies while the log is in the well. Is the data still recoverable? Yes The data is still recoverable If for whatever reason you can't communicate If to your loggers and you have really important data on there Please feel free to to let us know because there is ways that we can obtain that data for you It may be at the detriment of the unit or Our workshop manager Ryan is a wizard to get Loggers to talk. I can try which way I like sometimes With a bit of faulty units, but he does have a way to speak with the with the loggers to be able to Get them to talk. If not, we can still obtain that data But as I said, it will be the detriment of that unit. So if it's really critical, please let us know and we'll see what we can do to help you with that Nice one that what's the latest date? I can order the logo to ensure before Christmas so at the moment with our Shipping schedules with these We're doing you know due to COVID over in the states and national shipping We're still seeing a few flow-on effects from that So at the moment we're doing two rounds Standard shipping which is usually about five to six weeks and what we call an express saver Which is that a little bit more of a cost? On individual items, but that's sort of equates to simply the cost that we're incurring to get things out express to you guys So that's sort of in the vicinity of about two to three weeks. So that cuts that time very much in half So in terms of getting things before Christmas At the moment we sent out a newsletter to sort of say that if you buy the You know clothes of business on the ninth would be ideal potentially on the 16th you still might have a shop, but Um, if by the 9th of December if you had any things you needed to get in before Christmas that would be the date I would say keep in mind too that we also keep quite a lot of stock of this We deal with these loggers on the daily. So we do have quite a lot of stuff Sarah said a level log of five appropriate for estuary and marine environments. Uh, yeah. Yep. We do have we have had Uh, loggers utilized in those uh, in those environments for sure You know with the ec ranges being appropriate to reach those sort of high sale on in the, you know, excess of 80 to 100 thousand upper semen and capability Uh, and also in terms of the corrosion resistance, um, there is a Sort of a with the level loggers level level fives now. They've got a baked on Sort of a coating that's both on the Outside and also on the inside of the loggers. So there's sort of a dual layer of protection there now For those sort of harsher environments I would just say if you have a really sale on sort of estuary or marine area pretty Crucial just keep an eye to see if there's if you're getting Erratic readings, which might be because of the build up in the pins of those LTCs, but really that's probably one of the only things I would say Would be a problem, but certainly we've had uh, plenty of of the loggers installed in estuary marine environments for sure. So So as I said, what should you do if you go to download the data in the data control tab and the table An image is blank, but the sensor is showing x number of logged points Have been collected successfully Okay, the data control tab and the table and images blank Okay If you've gone into there, it sounds like there might be some connection issues with the logo itself. So, um Which I'll take note of that question for you. Um, and we can see Uh to troubleshoot for you what's going on there. Um, it sounds to me like I might be a Uh connection issue and if I've read that right, but I'll certainly get in contact with you after This um to see if we can help you. It sounds like might be an issue you might have been Uh ran into Alex Patterson said how do you compensate without a barrel logger? So without without a barrel if you didn't have a barrel logger, Alex, uh, as I said before you would need to do Um an export of your raw data into a csv format um that will give it into Um an excel format and you'll be able to obtain sort of your closest Uh bomb data from your project Which will give you your atmospheric pressure readings on the day And then that way you'll be able to take that data Along with your raw data and do sort of your minusing from there To minus your atmospheric from that from the readings of the the raw data readings of the logger so that's Generally a way that people Uh do it sometimes if they really want that bomb data to be the one that compensates it Um, but yeah, if you don't have a barrel logger, it's not the end of the world. So you can do it that way Um, if you want to have sort of more info on that one Um, please feel free to give me an email and I can certainly walk you through how to do that if you need So that seems to be Uh all the questions there that we have Um, so Uh, we'll leave it there. So we've got a little bit over time, but um, thanks everybody for joining me today Uh on this again. Um, as I said my details are there Should you need any help or if you had any other questions? Um, please feel free to reach out. So, um, thank you all for taking the time and enjoy your weekend. Um, I really appreciate it. Have a good day