Simco FMX-003 - Section 7. Ion Balance Measurement

INST‑05070410
ION BALANCE MEASUREMENTSection 7.
FMX-003 can be used easily to measure ion balance
voltage (offset voltage) for many kind of ionizers using
a ion balance plate provided.
7.1 Ion balance plate installation
During static charge measurement, the ion①
balance plate is attached to the bottom end
(opposite to that with the sensor) normally. For
ion balance measurement it should be removed
and attached to the top end having the sensor.
Press rear side release buttons from both side②
and draw out the ion balance plate.
⇒
Insert the plate into the sensor side slots until it clicks into place and stops as shown in③
the photograph below.
⇒
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INST‑05070410
The plate should enter smoothly. It should not move when secured in place properly.④
Forcible insertion could result in damage to the unit.
In order to remove the plate after ion balance measurement, press sensor side release⑤
buttons from both sid es and draw it out. The plate can be kept attached to either end of
FMX-003 when not in use.
CAUTION
Make certain that the surface of a white plastic plate under the ion balance plate is clean・
before attaching it to FMX-003 for ion balance measurement.
The ion balance plate should be stored or used in a place having less than 60 %RH.・
7.2 Grounding connection
FMX-003 can be used to measure low voltages up to 200 V in the ion balance mode. It is
important to connect it to ground using the grounding lead supplied, especially for ion
balance measurement.
CAUTION
The plastic case of FMX-003 is made of conductive resin. The grounding terminal
provides the reference potential for the electrical circuit. This terminal should be grounded
for proper measurement. The accuracy is not guaranteed for measurement with an
ungrounded FMX-003.
7.3 Selection of the measurement mode
There are two modes of operation based on whether Auto-off function is operative or not.
7.3.1 Standard mode for ion balance measurement
Initially, ground the plate to remove any static charge. Press the center of red circle①
button switch marked "POWER" once. A single beep (0.25 second) sounds to inform
that FMX-003 is into standard mode.
Press the center of blue circle button switch marked "IB" once. LCD display shows②
"IB" along with digital numerical value, polarity sign, unit of measurement "V", bar
graph scale and battery condition. FMX-003 is, now, ready for ion balance measurement.
The two red LEDs, located beside the sensor, do not light up. Please confirm state of
the battery from "Battery condition display" as described in Section 5.
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