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Testing Your Grounding Product

The first thing to understand about testing is that unless a product is damaged, it is not necessary.

We test each product before it ever leaves the factory, so defective products should be exceptionally rare. 

However, many people like to run the tests to prove that the products work as intended and we fully support that. We want you to be thrilled with our products. 

If your product is ever damaged, it’s also handy to be able to assess the damage. 

To conduct any sort of testing, you’ll need a multimeter. There are many different multimeters on the market and the dials are not always labeled the same. 

If you want to follow these instructions precisely, you can order the exact same device we use 

here on Amazon. It’s relatively inexpensive and useful for any type of electrical testing.

How to Do a Full Test of Your Grounding Product

Why run a full test?

To reassure yourself that the device is doing what it is intended to do. There’s really no substitute for putting your own body in the loop and watching the readings. There’s no live current involved so this is a safe test to conduct at home.

Important note: In order to conduct this test you need an extra piece of equipment, it requires a grounding outlet adaptor that allows for 2 items to be plugged into your one grounding connection in order to make the testing loop.

How to test:

  1. Plug the adaptor into your outlet.
  2. Attach the grounding cord to your product.
  3. On your multimeter, plug the red probe into the V/ohm/Hz terminal and the black cable into the Com terminal.
  4. Plug your grounding cord into one of the adaptor ports and clip your multimeter’s red  probe to the other port. (Both of the adaptor ports should be attached to one ground for completion of loop, which is automatic if you have the pictured adaptor.)
  5. Set the multimeter dial to 200,000 ohms.
  6. Hold the other probe in between your thumb and index finger and check the reading.
  7. Keeping that probe in your hand, use your other hand to touch the grounding product.
  8. Check the reading again.

The Cord

Why test the cord?

There are 2 main reasons:

  1. To check the resistance level if you’re concerned about safety. The high resistance level of the cord prevents any electrical feedback from your outlet from reaching your grounding product (because electricity always takes the path of least resistance).
  2. If your cord has been damaged in any way, you can check whether it is still working properly.

How to test:

  1. Set your multimeter dial to 200,000 ohms.
  2. Touch the red probe to one end of the cord and the black probe to the other end (doesn’t matter which end touches red or black, you’re just testing the loop).
  3. The meter should read roughly 100,000 ohms.

The Sheet

Why test the sheet?

The main reason for testing the sheet is to assess damage to the sheet. If a sheet gets ripped, clawed by a pet, etc. it is useful to be able to test whether a part of the sheet is working. 

How to test:

  1. Set your multimeter dial to 200 ohms. 
  2. Touch one probe to a silver fiber on the sheet and the other probe to the same fiber about 1 centimeter from the other probe.
  3. The meter should read roughly 4 ohms.
  4. This reading is per centimeter, so if you set the probes 5 cm apart, the reading should be roughly 20 ohms (4 x 5).

The Button Connector

Why test the button connector?

This is a rare case, but if the sheet tests fine and the cord tests fine, but the human test isn’t working, you may want to check the button connector. 

How to test:

  1. Set your multimeter dial to 2,000 ohms.
  2. Touch one probe to a silver fiber on the sheet and the other probe to the button connector.
  3. The meter should read roughly 700 ohms.

Plug to Sheet

Why test from the plug to the sheet?

This test helps you determine whether a conductivity problem is an issue with the product or not (ex. - an improperly grounded outlet). 

How to test:

  1. Set your multimeter dial to 200,000 ohms.
  2. Connect the cable to the button connector.
  3. Touch one probe to a silver fiber on the sheet.
  4. Touch the other probe to the grounding post end of the cord (the end that goes into the outlet). 
  5. The meter should read roughly 100,000 ohms.

Plug to Sheet

Why test from the plug to the sheet?

This test helps you determine whether a conductivity problem is an issue with the product or not (ex. - an improperly grounded outlet). 

How to test:

  1. Set your multimeter dial to 200,000 ohms.
  2. Connect the cable to the button connector.
  3. Touch one probe to a silver fiber on the sheet.
  4. Touch the other probe to the grounding post end of the cord (the end that goes into the outlet). 
  5. The meter should read roughly 100,000 ohms.

Common Questions:

Q: Ohms measure resistance, why aren’t we measuring conductance ?

A: Resistance is the inverse of conductance, they are two sides of the same coin. If we can measure resistance, the conductance  is necessarily there also.

Q: Why do the dial settings and readings keep changing? 

A: The longer the distance, the higher the resistance reading. That’s why the readings involving the cord are so high and the ones only 1 centimeter apart are so low. The dial settings just show you the relevant portion of the scale. If you set it to 200k and take a 4 ohm reading it will still work, but appears as a tiny number way after the decimal.