@sever10 Thank you for your input.
Ok let's begin from the start. When it arrived I was so happy to try it. But... According current manual I was not even able to connect to device. So I needed to contact support service in order to get some instructions - they sent it to me right away (so why they were not with the device?).
When connected I faced another problem - there is no micro USB cable from device to computer (if you do not have spare at home - you need to buy one).
After first time calibration (which took almost 2 hours) I was good to go. I was really surprised how accurate it was. First test showed 8.95 kh (salifert was 8.9 kh, Hanna was 8.99 kh). That was a wow to me.
If somebody of you bought this device this year - you are happy ones, because I bought it at the end of November last year and this doser firmware and software was really buggy (at least for a month I felt like beta tester or even alfa). And you do not expect to be such when you buy equipment from known brand and it costs more than 700 EUR. At some point I feel disappointed that had to spend a lot of time tracking those bugs and reporting to support service (somebody is getting paid for this job so they should do it better). Main issue I had - chart was not showing any values and this was due to that application accepts only dot as a decimal separation (although application could use both separation and handle this in the code perfectly - I have IT background so know some things). Another thing was that till 2019 there was no ability to Control the kh - so they released this doser before having functionality in place.
So everything was really good for a week... Then one morning I woke up and saw huge amount of water on the floor. The water was going from the doser pump 1 (it was stuck at that stage where dosing to measurement cylinder appear). And of course it overflow - a lot. So after stopping the doser and cleaning the mess I noticed in the application that doser was stuck at least for 6 hours (from 3 AM to 9AM). So damage was on the floor, on the cabinet - so it was extra ~250-300 EUR for me to fix the damages. At that point I wanted to return back the device and get my money back for such faulty device. But we sorted out all the issues with Pacific Sun CEO - at this point I'm really happy that they understand that at that point in time product had issues and we agreed they will send replacement parts and new firmware will be ready in next few days. So after this I decided that OK lets agree to try it once more and see how it goes. They really care for the customers and do not leave them without a help.
After few weeks it happened again - it stuck at night again. This time on emptying the cylinder (with magnetic stirrer on). So good that no damages were done. Just pump had a bit too much running.
After New Year new update came and since then I can truly say that firmware and software are now stable and they managed to fix all those major issues. As mentioned before I had quite a lot of input into those issues (each time I found issues - they were reported to support service). The same applies to improvements - and even know I can see at least few improvements that were done according my feedback.
And talking about support service - guys you are really helpful (although there are issues, but you are trying to react quickly). I'm happy with support service that Pacific Sun has and that they care about their customers.
If I would bought this doser now - I would be happy without any issues (so at this point I feel quite bad that had such period where faced a lot of issues for the expensive piece of equipment).
To conclude:
- Don't buy equipment which is released few weeks ago (it is buggy, unless you feel that they have really strong service which tested everything till the tiny details)
- Windows application is now stable and usable at 99%
- Android application is another thing - it is not fully ready yet - so I expect some challenges there as well
- Accuracy is really good, but you need to do the following:
- Calibrate Pump 1 and Pump 3 at least once in a two weeks time
- Calibrate the ph electrode at least once a month
- Calibration is really easy - you have the scales and it takes about 15-20 minutes to calibrate them
- Magnetic Stirrer is quite loud
- Liquid amount can be tracked
- How many ml per day each pump dosed can be tracked
- It can at some point control calcium reactor: If you would buy solenoid valve (extra 50 EUR) from Pacific sun you would be able to connect it inline with calcium reactor and if kh will be more than specified - solenoid will cut the line so no CO2 will go to reactor (there were few suggestions sent to Pacific sun - I hope they will incorporate them in later versions).
- It displays chart with KH values + table with KH, PH, Reference and actions that were taken or not (perfect feature)
- You can enter reference Kh (for example your test result from Salifert or Hanna test) and according to that doser will draw the line and will calculate what would be the value according to your reference. F.x. if doser measured 7.7 kh and Hanna shows 7.6 kh - you can set that reference kh is 7.6 for doser value 7.7. And when next measurement will appear reference kh would be automatically calculated according last result: doser - 8.0 kh, reference 7.9 kh.
All in all:
If you looking for a Kh measurement device with control abilities - just go ahead - this device is really great. It measures your kh + control it and does the balling according the kh
P.s. I will try to update this thread with my findings
