Instruction Manual

2
Introduction
This manual describes how the GXA-25 External Fanless Ionizer (static eliminator) works and how to
get the most out of it in terms of performance. Read this manual thoroughly before using the ionizer
and keep it at hand for future reference.
1. Features
□ The fanless ionizer (static eliminator) can eliminate static electricity from the weighing sample
before weighing, reducing errors.
(Bipolar ions are generated by corona discharge and the weighing sample is irradiated by those
to neutralize it.)
□ Each electrode unit of the ionizer is designed to be removed, cleaned and replaced.
□ An IR (touchless) switch is attached to the ionizer, and neutralization can be started without
touching the ionizer.
□ Power is supplied from the balance to allow the ionizer to be operated without using an AC adapter.
□ PRINT or RE-ZERO or the neutralization function for the ionizer can be operated by using the
optional foot switch (AX-SW137-PRINT or AX-SW137-REZERO).
Static electricity
In general, when the ambient humidity is less than 45% RH, nonconductors such as powders, paper,
and plastics easily become charged with static electricity. The influence of the static electricity may
cause a weighing error of several milligrams. The ionizer effectively neutralizes the electrical charge.