Recently I had the idea of a post about protected readers – and I needed the information necessary for writing it from the PocketBook engineers. Engineers gladly shared. So our cooperation is beneficial not only to me and the "Pocket", but also, I hope, to the readers. I'll tell you about the protected ones below.
This is me with the seal and the reader
One or another technological chip can be implemented in several ways. For example, blur the background on the images can be achieved with the help of two cameras, and with the help of one, but with special software algorithms. Well, or a long-term autonomy can be obtained both through the use of a huge battery, and thanks to the "kit" of a relatively small battery and optimized system software. To protect this or that gadget from water, too, you can in several ways. Formally, all of them provide "inability" of the device by dipping into the water, but … There are nuances! We will consider them in this post. We will look at the example of electronic readers – after all, you read this post in the blog of the leader of the Russian market of PocketBook readers.
A certain spread in the market of readers was protected from water by various kinds of gels. The process looks like this: the motherboard and other electronic components of the device are covered with a special compound, after which it ceases to be afraid of liquids.
For example, on Amazon for a couple of years Kindle readers are offered not from Amazon itself, but from WaterFi company. She buys devices, parses them, processes them with her own production gel, collects them back and receives protected copies. Which then tries to sell with a surcharge of $ 100 – it's just a fee for the lack of rabies. (As far as WaterFi is concerned, evaluate yourself, considering that the water-proof PocketBook 641 Aqua 2 costs only 1,000 rubles more than the analog of the PocketBook 626 Plus, in which there is no protection.)
] WaterFi demonstrates pretty photos of readers processed with its gel, without specifying what will happen if the reader after such a bath does not dry out
Everything would be nothing, but the developers from PocketBook analyzed such gels while creating the first In the world of the protected reader – PocketBook 640 Aqua of the sample of 2014. There are about a dozen such compounds on the market, and the instructions to them say about the following: after the treated device enters the water, it should be immediately extracted and dried within 48 hours. If you do this, then the probability that the gadget will die, decreases, and they can be used further. So a full protection of the use of the gel can not be called – it's more easy insurance. The manufacturers of gels do not actually guarantee survival.
PocketBook 640 Aqua is the world's first secure reader. And it was not protected with the help of a gel, but by other means – about them below
The logic of manufacturers of devices treated with gel is this: people actually seldom moistened protected gadgets, protection is by and large Psychologically important moment, he gives a sense of confidence, and most of this is enough. And if for 500 (for example) sold copies a couple of pieces do drown, then replace them with a guarantee – business!
There are also slightly different cases. For example, Kobo Aura H2O uses the gel of HZO, and this does not prevent the guys from Kobo from telling that their product can be immersed in water for two meters and marinate there for half an hour. Judging by the videos on YouTube, which shows the process of parsing Aura H2O, you can draw this conclusion: the model has a minimally protected case (it's too easy to understand), but still somehow protected, which allows to talk about IPX8 certification despite the use of gel. Which, as already mentioned above, is able to "give" life to the device only if its (device) immediately after immersion in water is extracted and dried.
Kobo has his way: a minimally protected body + gel. The reliability of this method is fashionable only to guess.
The fact that gels do not give normal protection is also spoken by this situation. In the fall of 2016, a single reader with IP67 protection was announced in Russia – naturally, using a gel (also from HZO). On sale it appeared, however, only in June 2017. And information about the protection somewhere … disappeared. Now the developers of the device say that it is not afraid of splashing water. Probably, in the process of testing it was for immersion that the gel showed itself not in the best way. The developers realized that the percentage of surviving after the bathing devices is too low, and decided to limit themselves to declaring protection against splashes. What is not serious: almost all gadgets are protected from splashes, it's not even pleasant to write about it on boxes.
Correspondence with the support of the brand, which at first promised in its reader the standard IP67, and then realized only the protection from splashes
Well, for the sake of order , How protection is organized in PocketBook 641 Aqua 2. It is organized with the help of tuling – this is a whole complex of measures designed to make the enclosure airtight. That is, protection is provided not by gel with doubtful properties, but, roughly speaking, by the most accurate and thorough adjustment of the body components, the presence of rubber gaskets at all joints of panels and so on. So that no gaps remain between them, in which water could leak. In addition, tolerances for the production of PocketBook 641 Aqua 2 have been reduced by half compared to conventional, unprotected PocketBook readers.
PocketBook 641 Aqua 2 can easily be dropped into the bathroom, and Then DO NOT dry
Which gadget manufacturers use the same HZO gel? Once it was used in the smartphone Tag Heuer, a couple of times – in wireless headphones, once more – in the bracelet Nike. That is, it's not a mass technology, it's not a standard for the market, it's just one of the protection options, and it's far from the best. Because if it really was the best, then the list of devices in which HZO technology would be applied would be at times wider. And then the company would buy some mastodons like Apple or Samsung. But no, this does not happen. Because Apple, Samsung, LG, Sony, and together with them and PocketBook protect their devices the only true and 100% guaranteed way – with the help of tuling.
Samsung, Apple, LG, PocketBook – serious guys have only tuling. The point!
That's why PocketBook 641 Aqua 2 can be bathed for half an hour at a depth of a meter, and after that the reader should not be dried "within 48 hours". And that's why PocketBook 641 Aqua 2 can be called the only 100% guaranteed by a secure reader not only in Russia, but, perhaps, in the world. And then Kobo's experiments with gel cause a lot of questions, even though the company gives promises about compliance with the IPX8 standard.
P. S. Well, I will share my plans for the future. I have a friend-colleague Alexander Shub – a great specialist in car recorders. Plus, it well fumbles in the internal device of portable electronics – I, I confess, is not strong in this: all these chips, types of soldering and so on. But I understand something in the readers, and he – only in registrars understands. Therefore, we decided to disassemble a couple of readers of different brands and show the difference in the quality of the assembly and the internal device. Would you be interested in such a post for authorship of two observers at once? What do you think?