Not so long ago we learned about Austrian fans. We tested a whole range of gray owls Redux and only a couple of representatives from the line of high-performance fans industrialPPC, all the fans were in one instance. Today’s tests will be rather unusual, I will not be considered separately fans, today I’ll show you how they work in pairs, and even on the radiators. It seems to me that the pair testing the fans quite important, as are common in the market in sufficient quantities requiring the installation of a pair of radiators fans, and the behavior of fans mounted on the radiator or in the body in terms of noise can be quite different from those stated in the specifications. Testing for the most part will be devoted to the lineup industrialPPC, but in order to make it interesting for testing will be added, and other members of the fan Noctua. Just in this article will be three parts, each part will be due to a separate category: 280mm radiators LSS processor super air and 240mm radiator LSS. The first part you have learned will be devoted to 140 mm fan, I suggest not to delay over the entry and move to the inspection and testing of fans.
Just a line 140mm industrialPPC there are four models, they differ number of revolutions, protection class and the presence of PWM control. Our testing shows almost the entire range of fans, with the exception of a single devoid of options PWM, NF-A14 industrialPPC 2000.
IndustrialPPC line is such industrial elite «working owls», high quality, proven technology, a slightly different color (or rather drastically different), the quality of performance, durability, highest level of performance. 140mm fans industrial owls are based on the legendary NF-A14, but have a more severe temper and a high level of performance and, accordingly, a high level of noise.
SPECIFICATIONS TABLE PARTICIPANTS
|Model||NF-A14 industrialPPC 3000 PWM||NF-A14 industrialPPC IP67 2000 PWM||NF-A14 industrialPPC 2000 PWM||NF-A14 PWM|
|Size||140x140x25 mm||140x140x25 mm||140x140x25 mm||140x140x25 mm|
|Connector||4-pin PWM||4-pin PWM||4-pin PWM||4-pin PWM|
|Length of wire||400 mm||400 mm||400 mm||200 mm|
|The diameter of the impeller||133 mm||133 mm||133 mm||133 mm|
|The diameter of the rotor||42 mm||42 mm||42 mm||42 mm|
|The geometry of the impeller||A series with Flow Acceleration Channels||A series with Flow Acceleration Channels||A series with Flow Acceleration Channels||A series with Flow Acceleration Channels|
|Rotational Speed (+/- 10%)||3000 RPM||2000 RPM||2000 RPM||1500 RPM|
|Rpm Extract (PWM, +/- 20%)||800 RPM||500 RPM||500 RPM||300 RPM|
|Air flow||269.3 m³ / h||182.5 m³ / h||182.5 m³ / h||115.5 m³ / h|
|Noise level||41,3 dB (A)||31,5 dB (A)||31,5 dB (A)||24,6 dB (A)|
|The level of static pressure||10.52 mm H 2 O||4.18 mm H 2 O||4.18 mm H 2 O||2.08 mm H 2 O|
|Power consumption, max||6,6 W||2,16 W||2,16 W||1,56 W|
|Current, max||0,55 A||0,18 A||0,18 A||0,13 A|
|Voltage||12 V||12 V||12 V||12 V|
|MTBF||> 150.000 h||> 150.000 h||> 150.000 h||> 150.000 h|
|Scope of delivery||Fan + 4 Fan Screws||Fan + 4 Fan Screws||Fan + 4 Fan Screws||Low-Noise Adaptor (LNA)|
|Low-Noise Adaptor (LNA)|
|30cm Extension Cable|
|4 Fan Screws|
|Guarantee||6 years||6 years||6 years||6 years|
|Material||Fibre-glass reinforced polyamide||Fibre-glass reinforced polyamide||Fibre-glass reinforced polyamide||—|
|Type of motor||Three-phase||Three-phase||Three-phase||—|
Noctua NF-A14 industrialPPC-3000 PWM, this representative of industrial fans, is perhaps the most highly resourceful and most expensive fan in the lineup. The figure in 3000 the name suggests the possibility of working at a speed of 3000 rpm \ min.
This fan comes with a small black and brown box with the inscription industrialPPC and called the fan underneath. In the upper right corner is the logo of the company in a brown box.
On the reverse side, there is a sticker with a brief description of the model.
The fan is located in a black cardboard pallets.
Supplied a very modest fan on past it includes only the screws to secure the fan.
As supplied by all the same, repeat it for each representative industrialPPC, I will not continue.
Before us is a pair of black Noctua NF-A14 industrialPPC-3000 PWM, visually except for the color and length of the cable there is no change. Type of bearing used SSO2 , in conjunction with three-phase motor and the same thanks to the PWM control fan runs at a speed of about 800-3000 \ min, this according to the manufacturer specifications. Black impeller bears seven wide blades with notches at the ends of the blades are at quite an acute angle of approximately 40 degrees, the length of one arm is 45,5mm, the diameter of the impeller is 133mm.
All differences are hidden from view, the main difference between NF-A14 industrialPPC-3000 PWM from the standard version NF-A14, is the speed of the engine, which can reach 3000 r \ min, by the way is the most productive of all the fans of the fan Noctua. And, in principle, one of the most powerful 140mm fan on the market. In combination with high performance manufacturer guarantees a very long engine over 150 000 hours for the fan who has to work in an industrial environment is a great resource is the key feature.
Thickness is 25mm fan, with one end is marked indicating the presence of protection class IP52. Feature IP52 — Protection from dust settling, full motor protection against contact with dust. Protection against internal damage due to dust deposits.Protection against dripping water when tilted up to 15 °. Protection against drops.
The company’s products are renowned for their adaptability Noctua at what technology really work implemented by the manufacturer. Noctua NF-A14 industrialPPC-3000 PWM has adopted a very effective technology impeller geometry Flow Acceleration Channels . Its essence is that the edges of the blades, there are three notches. The task of notches prevent turbulence of the air flow at the ends of the blades of the fan through them appear more quiet operation at medium and high speeds. The most important thing is to get order, focus the airflow that gives better performance. Say that it is a good technology enables even though it adopted Thermalright m used to his new fans TY-149, as well, the same impeller with notches fans attended the two-part cooler Ice Hammer IH-THOR. The material, which the manufacturer uses also differs across the spectrum industrialPPC used fibre-glass reinforced polyamide.
Frame fan has a stepped structure, this technology makes it possible to improve the aerodynamic properties of turntables, facilitate the transition from laminar to turbulent flow and thereby reduce the noise at the input of the air flow. This technology is called AAO (Advanced Acoustic Optimisation) .
Like the progenitor NF-A14, each fan industrialPPC has anti-vibration rubber corners that are quite easy to remove. Their task is to reduce vibration during operation of the fan.
The manufacturer claims that the fan can run at speeds of 800 (+/- 20%) — 3000 (+/- 10%) of the \ min, and this is true.Copies have got to test run at the speed 700-2700ob min. The engine has one important and not very nice feature, reducing the speed is below 1200 \ minutes of the engine appear parasitic sounds resembling a dull crash. When working over this mark parasitic sounds disappear, only to hear the blades cut the air. Of all tested industrialPPC trёhtysyachnik was the most noisy at minimum speed.
The next person has a calm temperament, limited to 2000 \ minutes, but has a higher degree of protection IP67. He also comes in a small black and brown box.
All fans 140mm Noctua industrialPPC outwardly indistinguishable and everything said about the first party is the same here. In fact, we face the same NF-A14 in black only.
The only thing you can find the difference — it marked on a label on the reverse side.
The thickness of the fan is 25mm from the end of the marking is present, speaking about the presence of protection class IP67. The presence of this class protection means that the device is fully protected against solid objects (dust) and protected from condensation of temporary or short-term immersion to a depth of 1m.
Noctua NF-A14 industrialPPC-2000 IP67 PWM representative of industrial fans, this pleased me most of all, of course, he is not devoid of parasitic sounds in the engine, but the model of the least heard. Sounds emitted by the engine more like barely audible crackle or rustle. The boundary of the appearance of parasitic sounds less fat when compared with trёhtysyachnikom, now they appear when the engine speed less than 1000 rev / mime. When working over this mark parasitic sounds disappear, only to hear the blades cut the air. Fan speed was about 400-1800 \ min, declared against 500 (+/- 20%) — 2000 (+/- 10%) on \ m, all within the normal range of the claimed deviation.
The box is the same as the previous participants, they differ only in name fans.
On the reverse side there is a sticker with the specifications of the fan.
Prior to contact all of the same black NF-A14, a detailed description thereof is present above description Noctua NF-A14 industrialPPC-3000 PWM.
Fans only differ visually marked on a label on the reverse side.
Thickness is 25mm fans, on the face of present labeling speaking fan protection class IP52. Feature IP52 — Protection from settling dust, complete protection against contact. Protection against internal damage due to dust deposits. Protection against dripping water when tilted up to 15 °. Protection against drops.
The technology used in the impeller and frame are identical to that of its neighbors, involved in the testing.
Impeller — A-Series with Flow Acceleration Channels
Frame — AAO (Advanced Acoustic Optimisation)
Bearings — SSO2
Fan antivibration also has on the housing insert.
During testing, it was found that this model is the noise level is exactly in the middle between the test industrialPPC. At low engine speeds below about 1000-1050 / mime appear parasitic sounds in the engine. These sounds resemble dull crack or rattle like the older models only quieter. When working over the level of 1000-1050 \ min parasitic sounds disappear, only to hear the blades cut the air. The speed of the motor was about 400-1800 \ min, comparing with the stated 500 (+/- 20%) — 2000 (+/- 10%) of the \ min.
As a comparison alone industrialPPC line between them would not be so obvious, and the orientation of these fans for industrial applications puts many people are faced with the question, and whether they can be used in a standard PC enclosure. After all, they have an interesting appearance, and the manufacturer claims that they can work even on low speed. I decided to add a couple of test proven elite home owls Noctua NF-A14 PWM.
Noctua NF-A14 PWM comes in the usual white-chocolate box with an abundance of information on technologies and capabilities fans.
On the reverse side there is information in nine languages.
The box also has two additional turn with information about the characteristics and aerodynamic package.
A second turn located on the reverse side carries information about the technology used in this model fans.
Inside the cardboard boxes are transparent plastic boxes with content and instruction.
Supplied very rich:
Here they are accustomed to our view creamy chocolate homemade owl. Visually except color and cable length differences to be found. Chocolate impeller bears the same seven wide blades with notches at the ends of the blades are at quite an acute angle of approximately 40 degrees, the length of one arm is 45,5mm. Impeller this model can unwind from about 300-1500 \ min, which is less than 500 junior ndustrialPPC, but is important to distinguish these fans is the lack pylevlagozaschitnyh qualities as industry peers.
Controlling the speed of the fans industrialPPC occurred via PWM controller motherboard and programs ASUS Fan Xpert 2. If you try to control the rotation of the impeller by changing the voltage is lower than 9v (1000-1200 about \ min), the fan stops.
Testing the level of fan noise will occur at 280mm radiator Corsair H110. The noise level will be measured with a digital sound level meter, a distance of ~ 15cm, the minimum limit of the measurement noise is 30 dB, the noise level in the room is equal to 30,5-31dB given below 33-34dB can be considered absolutely silent, the error may be 1.5 2dB. By how much testing takes place in an open testbed, the results of the noise level at around 35-37dB in the body will be at a distance of more than 50cm are not noticeable.
That came to an end with the introduction of industrial fans 140mm Noctua industrialPPC. Of course for them to take the cost of one or a couple of quiet PC bit is not reasonable, but if you indulge in acceleration and you need a result, the industrialPPC turn into a good assistant overclocker. Of course they can work quietly on probation, at minimum speed in the body with a good noise isolation, I think of them, you do not even remember, but then again if you’re going to use, at least sometimes in full, it is definitely worth a closer look to them. Another thing is the presence of pylevlagozaschitnyh properties at a high level, this is exactly what makes them a cut above in an industrial environment, so that the fans are completely justified its name industrialPPC. I note for a relatively quiet operation Noctua NF-A14 industrialPPC-2000 IP67 PWM, this fan of all three of the best presented fits into the body home PC.
Cons (in general)
Cons (for the average user)