USB Port
2.1mm Power Adapter Jack
Operation Overview
During operation, air is drawn in at the top, is measured, and exits at the bottom. Do not block the
air intake and exit openings. When operating, the display shows the ion count present in the air,
updating once per second. The 20-foot long ground wire should be used to connect the meter to
earth ground for most types of measurements, especially if you are measuring high ion levels.
At power on or when changing polarity, the meter stabilizes for about four seconds, after which ion
measurements begin. For accurate readings, avoid measuring near charged plastic such as synthet-
ic fabric (clothing). Excess charges will reduce both positive and negative ion counts in the vicinity.
In a typical environment, ions do not mix well. There can be clusters of negative ions in one area
with almost no ions just a few inches away. Thus, it is normal for the ion level to fluctuate irregularly
as air is drawn into the meter. To provide a more stable reading the meter imposes five second
averaging. An alternative average of 14 seconds can be selected.
“Scale” switches the meters range between 10 to 2 million ion cm
3
and 100 to 200 million ions cm
3
.
Ion peak levels are continually saved in the meter. By Pressing the “Peak Mode” the saved maxi-
mum ion level that occurred (since the last time “Reset Peak” was depressed) is displayed.
“Record” initializes automated recording for later retrieval via the USB port. The AlphaApp PC
application provides for retrieval and management of the meter data. The application may be
d
ownloaded at:
https://www.alphalabinc.com/alphaapp/
Earth Ground Jack
Air Ion Counter AIC2
