The correct way to save the metal detector and prevent it from damage

The correct way to save the metal detector and prevent it from damage

The correct way to save the metal detector and prevent it from damage

Protect your metal detector. Detectors often get disappointed when their new detector slowly becomes less and less responsive and appears to have lost some of its original peak performance. You can help prevent this from happening to your detector by following these basic care and protection tips: 


  • Some important instructions that must be followed to maintain the metal detector in the best possible way: 

  • Operate your detector exactly as recommended in the dedicated instruction manual. 
  • Use only high quality alkaline batteries with the correct voltage. Never substitute a different voltage. When using a Ni-Cad battery, always use a separate switchable package with the appropriate voltage output for the detector design. 
  • Remove the battery from the detector after each use, this will prevent damage to the detector in case the battery is leaking. 
  • The search-coil cable is connected to the search coil and protected by a strain relief. 
  • Check the pressure reducer frequently to make sure it is securely and properly installed. 
  • Keep cables properly wrapped around shaft stems and protect them during use. Flexible, compressed, or otherwise damaged cables may be shorted during use, causing erratic noise or unnecessary replacement of the search coil. 
  • Scan the search coil carefully, especially when using it around rocks and building foundations. Avoid hitting the search coil on hard objects and hard surfaces. 
  • Keep the search coil slightly off the ground while scanning, especially when using it on gravel or hard rocky dirt. 
  • Always use a properly designed protective cover on the search coil. 
  • Remove and clean the wear covers periodically to avoid the build-up of metallic dirt particles that will affect performance. 
  • The search coil is waterproof and can be submerged in fresh or salt water. After using the search coil in salt water, rinse it and assemble the bottom thoroughly with fresh water to prevent corrosion of the metal parts. 
  • The search coil is waterproof but the electronics are not, so always take care to prevent any moisture or water from entering the control housing and never allow the cable connectors to be submerged in water. 
  • If you are working in or near water, or if rain is likely, use a protective weather-resistant bag or plastic bag to cover the control cap. Make sure it can “breathe” in order to ensure that no condensation builds up inside. 
  • After each use, clean the detector with a soft cloth to remove dust, moisture or other contaminants. 
  • When transporting the detector in a car during hot weather, store it on the passenger compartment floor if possible. Using a carrying case provides additional protection. In any case, do not allow the detector to roll unprotected in the trunk or behind the car. 
  • Protect your detector from dust, moisture and temperature extremes while in storage. 
  • When shipping, use original factory carton or similar sturdy container and provide at least 1 inch of padding around all parts. 
  • Treat your detector as you would any sensitive electronic instrument. Although it is durably constructed and built to withstand the demands of an ordinary treasure hunt, proper care is essential.


Periodic maintenance or as it is known as preventive maintenance 

Unlike planned maintenance, which is tied to a fixed schedule, preventative maintenance involves continuous checks to ensure that the equipment is not affected by anything that might compromise its efficiency now or in the long run. 

More importantly, preventative maintenance is not just a series of tasks that you perform on the machine; It’s also about how you behave around it, one example being moisture, which is the biggest source of metal detector problems in processing plants. 

“Moisture is constantly being introduced into the treatment rooms, whether it is from the sewage, the product, or as a result of work on the product. Moisture damages not only mechanical components, but also electrical systems, and unfortunately it cannot be completely avoided,” Fuller says. 

In this case, an aspect of preventative maintenance may include checking that the metal detector is well lubricated, free of rust or other water damage, and that all rubber gaskets protecting electrical components are in good condition. 

However, the indirect aspect of it is how to conduct sewage near the device. So a good preventative maintenance measure is to “cover the machine while sewage or not washing in that area in the same manner to avoid splashing, or, if possible, remove electrical equipment from the treatment room completely”.

Another example of such an indirect approach to the preventive maintenance of metal detectors is the attitude of operators to their daily use. “As a worker, you have to have the mindset to be gentle on the machine to prevent corrosion, and this is often lost in processing plants,” says one expert in the field of metal detection. “When it’s more difficult on a device than recommended by the manufacturer, you can shorten its lifespan. 

In the end, we find that maintenance and follow-up periodically for metal detectors are the most important procedures that every prospector and explorer must follow to preserve the metal detector from damage and protect the device to benefit from it for the longest possible period of time.


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