S2000 Elite - User's Guide
035-00707 Revision 1
120
14.9. Noise and the OmniCure S2000 Elite
Using the S2000 Elite in a Noisy Environment
What is Noise?
"Electrical noise" is a term used to describe unwanted electronic emissions. Noise is
comprised of RFI (Radio Frequency Interference), EMI (Electro-Magnetic` Interference) and
other similar sources of energy. Electronic equipment may behave in a non-standard manner
(exhibit erratic operation) with high levels of noise. They will continue to behave erratically if
the noise is present unless protected with noise suppressors.
What are Sources of Noise?
Sources of noise are any electronic equipment that utilize or generates a high-frequency AC
current and voltage. Specifically, equipment such as metal halide arc lamps, mercury short-arc
lamps, xenon arc lamps, switch-mode power supplies, pulsed lasers, x-ray equipment, welding
equipment and RFI generators are a few classic examples of large noise-producing
equipment.
Determining the Noise Level in Your Environment
If the S2000 Elite and other pieces of equipment operate abnormally, intermittently or
continuously, significant noise levels may be present. It is recommended before to installing
the S2000 Elite, the user examine any equipment nearby. If any of the equipment falls into the
previously listed categories, it is further advised that the user examine the ratings and
description labels on each piece of equipment. Any equipment that does not have a label
indicating that it meets Industry Canada, FCC, or IEC- EMC requirements is a possible noise
source. If any equipment is deemed a noise source, or even suspected to be a noise source,
then additional noise protection should be incorporated during the installation of the S2000
Elite.
Shielding
Any wire or cable assembly entering or exiting the S2000 Elite may act like an antenna that
picks up noise and transmits it to the internal electronics. This may cause the S2000 Elite to
operate erratically.
There are several ways in which the S2000 Elite can be shielded (protected). Excelitas
Canada recommends using shielded cables for all cable assemblies: the AC line cord, the I/O
cables and the footswitch. Furthermore, it is advised that clamp-on ferrite shield beads be
added to every cable assembly. Suitable ferrite shield beads are P/N: 0443164251 by Fair-Rite
Products Corp. (or) P/N: 28A2025-0A0 by Steward.
To Next Page
Loading...
Need help?
General