27 Appendices
Instruction Manual Keratograph 5M (G/77000/XXXX/EN – Rev05) 95 / 106
27 Appendices
27.1 Electromagnetic compatibility
Medical electrical equipment is subject to special pre-attentionary re-
quirements with respect to EMC, and must be installed and operated ac-
cording to the EMC-Instructions contained in the accompanying
paperwork. OCULUS devices and systems are suitable for use in profes-
sional healthcare establishments, e.g. doctor’s practices or clinics; how-
ever, they may not be used in proximity to HF surgical units or inside of
the HF shielded room of an ME system for magnetic resonance imaging.
Portable and mobile HF communications appliances can affect medical,
electric equipment.
Manufactured under consideration of permitted degradations
during or as a consequence of the EMC test without affecting the
basic safety:
A short interruption of the USB connection during the examination
is permissible because it will not affect the diagnosis, treatment
and observation.
Minor picture noise in the analogue camera of the device (slightly
snowy display image) during the examination is permissible, since
this does not affect diagnostics, treatment or monitoring.
Brief flickering of the device’s illumination during the examination
is permissible, as it does not affect the diagnosis, treatment and
monitoring.
Attention
The use of accessories, converters, and cables that do not meet OCULUS
specifications can result in increased emissions or a reduced interfer-
ence immunity of the Keratograph 5M.
Only use accessories, converters and cables that meet OCULUS
specifications.
The use of OCULUS-specified accessories, converters and cable with any
devices other than the Keratograph 5M can result in increased emis-
sions or a reduced interference immunity of the other devices.
Do not use the OCULUS-specified accessories, converters and ca-
bles for any device other than the Keratograph 5M.
Attention
Recommended separation distances between portable and mobile RF
communication devices and the device.
The Keratograph 5M is intended for use in an electromagnetic environ-
ment in which the radiated RF interference is uncontrolled. The custom-
er or user can help prevent electromagnetic interference by maintaining
a minimum distance, based on the maximum output of the communi-
cation equipment, between portable and mobile RF communication de-
vices (transmitters) and the Keratograph 5M as recommended below.
Portable RF communication devices (including peripheral devices such
as antenna cables and external antennas) should not be any closer than
30 cm (12 inches) to any part of the Keratograph 5M device. Otherwise,
the device performance may be affected.
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