![]() ![]() Is there no other solution than buying a professional ESD safe microscope? I see online lots of people using such USB microscopes, but nobody mentions ESD safety. Is this normal or should I be worried about my safety? If I remove the wrist strap and touch the metal parts of the microscope, I don't feel anything.Īlso if I put some insulating tape on the focus ring, I feel no pinches, but that's not good for ESD. I've tried also to let the metal part touch the ESD mat, but no changes. Wrist strap has 2MOhm resistance to ground. I guess we are not at the same potential and current is flowing through my wrist. However, when I touch the metal part (aluminum?) of the microscope to adjust focus, I feel slightly unpleasant "pinches" on my wrist, where the ESD wrist strap is. So I thought: I can attach the body of the microscope to a flexible arm outside of the mat, so that it stays 15cm above the mat (and ICs.) I know the microscope is not ESD-safe, but I don't know other solutions than maybe buying a professional microscope for 1000-2000USD. The microscope is powered by a USB charger from the wall plug, so it is not connected to the same grounding point of the mat and wrist strap (because the charger has only 2 pins on the plug, not 3 like mine Earth bonding point.) I use the microscope for soldering and inspection at home for hobby projects. ![]() I have an ESD mat, ESD wrist strap and a Chinese USB (power only) digital microscope(Andonstar ADSM201.) ![]()
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