ITW Simco-Ion EA-5J - 7.2 Measurement

Section 7. Auto mode measurement
7.1 Ground connections
During measurement of the ionizer performance, the accuracy might be affected by①
the static charge on the person and objects of circumference. Ground the person
using a wrist strap etc. EA-5J must be also grounded by connecting a grounding lead
to the ground terminal on EA-5J. Then, set up the sensor plate and ionizer referring
to "Section 5. Setup".
CAUTION
EA-5J has a ground terminal on the right side of the plastic enclosure. It is used as
the ground level for the internal circuit. It must have proper grounding foraccurate
measurement.
Automatic mode is available for the decay time measurement and the ion balance②
measurement. In this mode three kinds of measurements can be automaticallydone
by pressing one button. The measurement condition is based on the setting inthe
manual mode. However, the measurement of ion balance stops in 120 seconds even
if the setting is continuous. The measured data is saved in internal memory by
pressing SAVE button black . The saved data can be down-loaded to a personal()
computer as CSV or TXT form. Note, this saving can be done only in auto mode. It
cannot be done in manual mode.
7.2 Measurement
Turn the power on by pressing POWER button blue . Be sure that the LCD①()
display shows auto mode Au .()
() () ()ab c
a Immediately after power on()
b The plate is grounded and digital zero activation. GND lamp lights.()
c LCD display shows auto measurement mode Au .() ( )
Flow of LCD display
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