Static Testers

High Impedance DC Kilo-Volt Testers with Peak Hold

A mandatory instrument needed at the entrance of all ESD-free areas.

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Digital Static Checker

LED Static Tester

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For quick and easy accurate digital measurements

For simple visual readings,

with Peak Hold also visible

If you need to protect electronic items from Static Electricity whilst your workforce are handling them, then you need a DavieStat Static Tester.

They are simple, easy-to-use units that indicate the static voltage present on a person.
This is particularly important when wearing anti-viral clothing, especially gloves.

A unique feature of the DavieStat Static Testers is the Peak Hold function which indicates the highest reading for an adjustable period of time, to aid monitoring by supervisory staff.

This units can be held in the hand, on a bench or mounted on a wall near the entrance to static free zones.

DavieStat Static Testers are available as either a Digital or LED analogue versions.

What is Electrostatic Discharge (ESD)

Electrostatic discharge is caused by contact of two electrically charged objects which

have a differing charges, a miniature version of a lightening strike.  

Common occurrences are touching a car in dry weather, or walking across a synthetic

carpet and touching a metal switch or door.

Whilst is generally just an annoyance, it can cause people to jump and drop things etc.  

But where electronic circuits are involved, some micro-components can be damaged

by  these high voltage discharges.

So measures need to be taken where electronic components or electronic circuit boards

are handled.

Typically this means ensuring that flooring, clothing, benches, wrappings and storage

have some measure of electrical conductivity sufficient to dissipate any charges that

could build up, particularly when personnel are moving around.

A quick way to check if there has been any build up of charge on a person is to measure

the voltage on them (relative to Ground) with a high impedance voltmeter.   

Most multi-meters have a relatively low input resistance (typically 10 MΩ) whereas the

DavieStat testers are 10,000 times higher with 100 GΩ input resistance, which does not dissipate the charge quickly, so that it can be measured.