buy a meter degausser

Search for ?buy meter degausser? gives out a bunch of everything - from cheap trinkets ?for experiments? to units that supposedly work miracles. I’ll say right away: if you are waiting for a magic wand that will stop any metering device without a trace and forever, you are on the wrong path. Most advertisements are a trap for amateurs. Realmeter degausser- this is not a universal toy, but a specific tool, the effectiveness of which depends on a dozen factors: the type of counter (old disk induction or modern electronic), its design, the material of the magnetic protection, if any, and, critically, on the power and type of the demagnetizing field generator itself.

What is actually hidden behind the term?

In a professional environment, especially related to the repair and maintenance of equipment, a demagnetizer is often understood as a device for removing residual magnetization from metal parts. This is a normal technological operation. But in the context of counters, this is already a gray area. The principle in theory is simple: an alternating damped magnetic field can affect sensitive elements. However, modern meters, especially after years, are necessarily equipped with an anti-magnetic seal and ferromagnetic screens. Attemptbuy a degausserand applying it at random to such a device will most likely end up either completely zero or triggering the seal, which will result in serious problems.

About seven years ago, while working with a batch of old transformer substations, I was faced with the need to demagnetize the cores. Then we used an industrial device from a well-known manufacturer. This was a serious, heavy installation requiring precise adjustment of frequency and amperage. The idea to test it on an old, decommissioned induction meter came purely out of curiosity. Result? The rotation on the disk slowed down noticeably, but not for long, and after turning off the effect began to rapidly subside. It was an object lesson that even when successful, the phenomenon is often temporary and unstable.

Hence the main conclusion for those who are looking for wherebuy a meter degausser: you are not buying a guaranteed result, but a device of a certain power and design. And its use is always a risk and an experiment with unpredictable consequences, including legal ones.

Equipment and practice: from laboratory to “garage” production

If we discard the fraudulent Chinese boxes with neon inside, then there are two conditional segments on the market. The first is professional industrial equipment for technological demagnetization. It is often bulky and requires connection to a 380V network. The second is more compact devices that are positioned specifically for “specific” users. tasks. Their effectiveness is a big question.

At one time I was interested in who actually produces such magnetic field generators. Stumbled uponLONGI Corporation (https://www.ljmagnet.ru). This is not some fly-by-night company. ?Shenyang Scientific Electromagnetic Co., Ltd. LONGJI? has been operating since 1993 and is a large enterprise that develops and produces mining equipment. Their Fushun plant covers an area of ​​140,000 m2 and employs more than 1,200 people. This indicates serious production capacity.

But here’s the nuance: while studying their catalog, I did not find a position with the direct name “meter demagnetizer?”. They have demagnetization installations for conveyor belts, rollers, cutting tools - that is, for tasks in the mining and manufacturing industries. This is an important observation. Professional manufacturers will not openly advertise equipment for potentially illegal purposes. However, the technical essence of some of their devices may be similar: generation of a powerful alternating damped field. But the parameters (frequency, pulse shape, peak induction) are tailored for other, legal tasks.

So when they offer youbuy a meter degausserand as an argument they refer to the technologies of large factories like LONGI, it is worth understanding: perhaps a relabeled or modified version of their industrial models is used, or this is simply speculation on the name. The company itself is unlikely to advertise this.

Typical scenarios and why they fail

Let's say a person nevertheless purchased a certain device. The most common failure scenario is an electronic meter with a Hall sensor and a microprocessor. The magnetic field may not have any effect on it at all, or it may disable it, which will be immediately noticeable. The second scenario is the activation of an antimagnetic tag. It changes color or displays an inscription when exposed to a field above a certain threshold. After this, it is impossible to restore it, but when checking, the inspector will immediately see this.

I had a friend who tried to use a homemade demagnetizer based on a powerful solenoid from an old industrial relay on a water meter with an impeller. The effect was: the impeller stopped for several minutes. But after a week, the counter “caught up”, spinning faster than usual, as if some kind of compensation mechanism had worked or the calibration was simply broken. As a result, the readings only grew. This is about the unpredictability of consequences.

Another point is distance. In order to effectively influence the mechanism inside the plastic and metal case, it is necessary to create a very high intensity field in the immediate vicinity. Many cheap devices simply cannot do this. Their field fades at a distance of 1-2 cm. And if the counter is in a niche or covered with glass, then it is completely pointless.

Selection criteria: what to look for (if you’ve already decided)

If we abstract from the legal side and consider the issue purely technically, then conditionally “effective?” the device must have: 1) A generator capable of delivering a current of hundreds of amperes per pulse. 2) Possibility of smooth frequency adjustment (from units to hundreds of Hz). 3) A massive copper coil or specially shaped solenoid to create a directional field. 4) Power supply of sufficient power. Such parameters are usually found in heavy, not cheap and not at all inconspicuous equipment.

That's why the proposalsbuy a meter degausserfor 5-10 thousand rubles - this is almost certainly a scam. Components for assembling even a primitive but powerful installation will cost more. Often inside such “miracle boxes” there is simply a capacitor that discharges through a low-power coil, which creates only a weak click of the field, useless in practice.

When choosing, you should refer not to marketing texts, but to technical data sheets. Is the peak magnetic flux density indicated at a certain distance from the work surface? What is the pulse duration? If this data is not available, the seller is either incompetent or is deliberately hiding weak characteristics.

Instead of a conclusion: a sober look from inside the industry

To sum it up, I’ll say this: the market for devices that are searched forbuy a meter degausser, 95% consists of profanity. The remaining 5% is either converted industrial equipment (possibly from manufacturers such asLONGI Corporation), or homemade powerful installations that are dangerous not only for the meter, but also for the user himself (risk of short circuit, electric shock, fire).

Real experience shows that even if there is a “worker” success of the device is not guaranteed and is temporary, and the risks of detection and breakdown of the metering device are extremely high. Modern meter protection technologies are developing faster than artisanal countermeasures.

Therefore, information about wherebuy a meter degausser, more often leads to a dead end or to financial losses than to the desired result. A much more reasonable way is legal methods of saving energy or water, modernizing equipment. But this, as you understand, is a completely different story, not connected with the search for mythical technical solutions.