3M ScanEM-C, Руководство пользователя

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7
Using the 3M
™
ScanEM-C
Electromagnetic Near-Field Probe Kit
Basics of Operation
Both ScanEM-C Probes come with the batteries installed and are ready to
work right out of the box.
The best way to hold the ScanEM-C Probe is in the palm of your right hand,
just as you would hold a pen, with your thumb on the red Operate button
and with your index finger above the Level dial and Sound On switch (see
illustration on page 6). The red Operate button turns the power on. The
ScanEM-C Probe will be “on” as long as the button is held down.
ScanEM-C Probes are non-contact probes. Do not touch circuit elements
with the ScanEM-C Probe’s antenna. The test results may be meaningless,
and normal operation of the measured device may be influenced by parasitic
capacitance introduced by the ScanEM-C Probe in direct contact. The
ScanEM-C Probe itself may be damaged as well if it is directly exposed to
high voltage.
For the best results, position the ScanEM-C Probe perpendicular to the
tested area. This way, stray electromagnetic emissions coming from the
outside of the measured area may not affect the ScanEM-C Probe’s antenna
as much, and the ScanEM Probe can pinpoint the source of the troubling
emissions with greater accuracy.
The ScanEM-C Probe needs a few seconds to “warm-up”
Î Before scanning or taking measurements, allow a few seconds for the
ScanEM-C Probe to stabilize after first turning it on.