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- Magnetic field influence indicators are used to detect the effects of constant magnetic fields on measuring devices (water), which can affect the proper functioning of the counting mechanism.
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The use of magnets to stop meters is no surprise to anyone, even if it is completely illegal. To protect the device from the influence of a constant magnetic field and to record such an impact, a special indicator in the form of an anti-magnetic sticker can be used.
The magnetic field influence indicator is a sealing sticker with a polymer container placed on it, in which magnetic elements made of rare-earth material are located on a special base. The magnetic indicator works reliably at air temperatures from -40ºС to +80ºС, resistant to solar radiation, air humidity up to 100% (at temperatures up to +60ºС), thermal oxidative aging, mineral oil.
The magnetic field indicator is suitable for all types of meters. All indicators are compact, convenient and easy to use, durable and tamper-resistant.
- The magnetic field influence indicator is designed for external installation. The indicator is installed on measuring devices located in places with high humidity and possible flooding, low or high temperatures, in conditions where self-adhesive indicators cannot be used.
- Use sealing wire (preferably stainless steel wire coated with PVC) and an indicative plastic seal to fix the indicator on the meter. The seal is plastic and can be secured with the wire and a closing seal outside, perfect for very difficult areas.
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Under the influence of a constant magnetic field, the magnetic elements shift from their equilibrium state and attract each other. At the same time, their original position changes irreversibly, indicating tampering.
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The indicator is installed once and cannot be removed without breaking its integrity. If the indicator is installed in a hard-to-reach place, a mirror is used for inspection.
- Operating threshold > 50 mT, (more sensitive magnetic field model designed for water meters) all indicators will have a unique sequential number, customization available for large quantities.
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Product details
Type of indication: By magnets Operating threshold: >50 mT Features: Shock-resistant, plastic base Dimensions, mm: 45x25x5 Sequential numbering: 7-digit Logotype: Alphabetic Method of marking: Laser engraving Operating temperature, °C: -30°C +80°C Warranty period: 6 years
Under the influence of a constant magnetic field, the magnetic elements move from their equilibrium state and attract each other. At the same time, their initial position changes irreversibly (Fig. 2).
Fig.2


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