INST‑05070410
CAUTION
The focussing distance of the two red light beams is adjusted to 25 in factory. It can・㎜
be checked easily by directing the beams toward a white sheet of paper and moving the
fieldmeter toward and away from the paper.
If the reading blinks at [±22.0] with a continuous warning sound during the static charge・
measurement, maximum voltage reading limit has been exceeded. If this condition
persists, the sensor of FMX-003 might be damaged. Please suspend t he measurement in
this case.
The digital numerical value and the bar graph displayed on the LCD indicate the static
voltage on the target object. FMX-003 has t wo measuring ranges, namely, High range and
Low range as shown below.
Low range High range
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INST‑05070410
CAUTION
The polarity of measured static charge is indicated by sign of [+] or [-] displayed to the・
left of the numerical value. In addition, the color of the bar graph indicates the polarity of
the static charge, red being positive and blue negative.
Each bar of the bar graph corresponds to 0.1 kV (100 V) approximately for low range and・
1.5 kV (1500 V) approximately for high range.
FMX-003 is calibrated for the voltage range 0 to 20 kV, using a 150 mm x 150 mm・
±
charged flat metal plate placed at a distance of 25 mm. For any other distance, accuracy
of measurement is not guaranteed. If a charged object is large enough and the measuring
distance is correct, the display gives a direct reading of the static voltage.
A recalibration of FMX-003 or a calibration graph is required if the working distance is・
different from 25 mm. Please contact Simco Japan or Simco Japan's authorized agents in
your area for details.
6.5 Hold mode
When the center of green circle button switch marked "HOLD" is pressed once during the
measurement, the digital numerical value and the bar graph will be held on the display. This
is called "Hold function". This function allows the operator to move FMX-003 after
measurement where it can be more easily read. "HOLD" is shown on the left side of the
display; the red LEDs are turned off. Once FMX-003 is in hold mode, no more measurement
is possible. One more pressing of the button will cancel the hold function to resume
measurement again with the red LEDs turned on.
CAUTION
The numerical value and the bar graph displayed on the LCD will change if FMX-003・
moves during measurement. Hold function enables measurements in inaccessible areas.
Please note that the display of measured voltage as the numerical value and the bar graph・
are not saved in FMX-003, even if it is turned off in hold mode. Data and mode
informations will be lost by switching off the unit.
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