In a recent blog post, I discussed the theory behind how static is generated (if you missed it, check it out here!!). One of the troublesome aspects about static electricity is that it’s hard to measure. The static charge on the surface of a part is not visible, that is unless the charge is high enough to result in a static discharge to nearby equipment or personnel. In most cases, issues related to static aren’t always 100% clear and are impossible to measure without the right equipment. So how do we measure static?
It’s actually simple: EXAIR’s Model 7905 Static Meter is designed to take the guesswork out of the equation when evaluating static charges. It allows for an easy one-hand measurement of the static charge on the surface. This allows you to measure in numerous places in the process to evaluate the true source of the static. In most cases, the highest voltage reading will indicate the source of your static problem.
The 7905 Static Meter is sensitive and responsive, indicating the surface voltage and polarity on objects up to +/- 20kV when measured at 1” from the surface! On the front face of the meter is a hold button, a battery indicator, and a “zero” button to zero out the instrument and ensure an accuracy of +/- 5% of the reading when 1” from the charged surface.
When looking for a method to identify the source of your static woes, EXAIR’s Static Meter is an ideal fit. Since the method used to neutralize this static is also invisible, using a Static Meter in conjunction with any EXAIR Static Eliminator allows you to confirm and quantify the result of the products working as intended. To do this, simply take a measurement of the surface before and after treatment with any EXAIR Static Eliminator. After being exposed to the static neutralizing ions, the residual static charge should be neutralized and able to be confirmed on the display of the Static Meter. For customers and applications that require it, EXAIR also offers an ISO 17025 Accredited Calibration service.
The Static Meter is the only device that will allow you to identify and quantify any static charge. Don’t continue to let static charges wreak havoc in your processes, we have them available to ship today from stock alongside all of our cataloged Static Eliminators!!!
Tyler Daniel, CCASS
Application Engineer/International Trade