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Forum Can an ESD mat be tested without special tools?
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Related

Can an ESD mat be tested without special tools?

baldengineer
baldengineer over 6 years ago

There are inexpensive continuity testers that let you verify a loop between you, your wrist strap, and ground.

 

Without investing into special weights (probes), is there an effective way to measure an ESD mat’s resistance? Or more simply, verify areas of an ESD mat are still effective?

 

Can it be done with “just” a multimeter and a power supply?

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Top Replies

  • jc2048
    jc2048 over 6 years ago +6
    I've tried it with the two kinds of mat I have. This is with 10V from a bench PSU and my 5.5 digit Fluke meter (I also put a 100 ohm resistor in series, in case I touched the probes together, though I…
  • rsc
    rsc over 6 years ago +6
    ANSI / ESD S4.1-2006 Test Procedure According to ANSI / ESD S20.20-2014, an acceptable work surface will have a point to point and a point to groundable point resistance of less than 1.0 x 10^9 ohms. ANSI…
  • Gough Lui
    Gough Lui over 6 years ago +5
    I suspect some meters which cam measure in the tens of megohms can probably produce a reading on some carbon impregnated rubber mats. Then again there are other with a lot higher resistance rubber - I…
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  • Gough Lui
    Gough Lui over 6 years ago

    Insulation resistance testers are designed to measure leakage currents across insulation. They apply a current limited high voltage DC to measure high resistances (e.g. the Keysight U1461A I RoadTested can measure up to 260Gohm). They can also continually apply this voltage for a set amount of time to do dielectric absorbance tests, etc.

     

    The authority on this, no doubt, is three-phase as he's been reviewing quite a few units in his line of work.

     

    - Gough

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  • Gough Lui
    Gough Lui over 6 years ago

    Insulation resistance testers are designed to measure leakage currents across insulation. They apply a current limited high voltage DC to measure high resistances (e.g. the Keysight U1461A I RoadTested can measure up to 260Gohm). They can also continually apply this voltage for a set amount of time to do dielectric absorbance tests, etc.

     

    The authority on this, no doubt, is three-phase as he's been reviewing quite a few units in his line of work.

     

    - Gough

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