Lake Shore Model 475 Gaussmeter User’s Manual
TRADEMARK ACKNOWLEDGMENT
Many manufacturers and sellers claim designations used to distinguish their products as trademarks. Where those
designations appear in this manual and Lake Shore was aware of a trademark claim, they appear with initial capital
letters and the ™ or
®
symbol.
MS-DOS
®
and Windows/95/98/NT/2000
®
are trademarks of Microsoft Corp.
NI-488.2™ is a trademark of National Instruments.
PC, XT, AT, and PS-2 are trademarks of IBM.
Electromagnetic Compatibility (EMC) for the Model 475 Gaussmeter
Electromagnetic Compatibility (EMC) of electronic equipment is a growing concern worldwide. Emissions of and
immunity to electromagnetic interference is now part of the design and manufacture of most electronics. To qualify
for the CE Mark, the Model 475 meets or exceeds the requirements of the European EMC Directive 89/336/EEC as
a
CLASS A
product. A Class A product is allowed to radiate more RF than a Class B product and must include the
following warning:
WARNING:
This is a Class A product. In a domestic environment, this product may cause radio
interference in which case the user may be required to take adequate measures.
The instrument was tested under normal operating conditions with a probe and interface cables attached. If the
installation and operating instructions in the User’s Manual are followed, there should be no degradation in EMC
performance.
This instrument is not intended for use in close proximity to RF Transmitters such as two-way radios and cell
phones. Exposure to RF interference greater than that found in a typical laboratory environment may disturb the
sensitive measurement circuitry of the instrument.
Pay special attention to instrument cabling. Improperly installed cabling may defeat even the best EMC protection.
For the best performance from any precision instrument, follow the installation instructions in the User’s Manual. In
addition, the installer of the Model 475 should consider the following:
•
Shield measurement and computer interface cables.
•
Leave no unused or unterminated cables attached to the instrument.
•
Make cable runs as short and direct as possible. Higher radiated emissions is possible with long cables.
•
Do not tightly bundle cables that carry different types of signals.
