USER MANUAL SAGA
Page 38 of 47
8
ELECTROMAGNETIC GUIDANCE
Degradation of performance
Electromagnetic disturbances, such as electrostatic discharge, mains supply
overvoltage spikes and mains interruptions may cause the following types of
degradation of performance:
•
Noticeable artefacts on signals. These should be discarded because they
are clearly non-physiological signal traits.
•
Transient interruptions of signal data communication; in extreme cases,
cessation of data communication. Data does not appear on screen, but
signal acquisition continues and signal data is recorded as indicated by the
blinking green Card Recording indicator on the Data Recorder. The product
has a provision for repairing data lost in communication. Refer to
for data repair.
•
As a result, the SAGA product may need to be restarted (recycle power).
Basic safety is not affected by these phenomena, and the effect on essential
performance can be mitigated by user actions.
To prevent electrostatic discharges relocate the measurement to an environment
with anti-static floor and furniture and/or do not unnecessarily touch product parts.
To prevent mains interruptions use an uninterruptible (mains) power supply. Further
guidance can be found in the tables on the following pages.
Portable and mobile RF communications equipment can affect the performance of
the SAGA product by:
•
Disturbing data communication within the system. This may cause loss of
measurement data for real-time processing or display on the PC. But the
signal data can be repaired as described in
•
Increasing noise level on signals, large offset shifts or causing signal
distortion in extreme cases.
Basic safety is not affected by these phenomena, and the effect on essential
performance can be mitigated by user actions.
To prevent their interference, keep portable and mobile RF communications
equipment at sufficient distance from the product.
The product needs special precautions regarding EMC and must be installed and
put into service according to the EMC information outlined on the next pages.
Note that the SAGA Docking Station is intended to be used only in professional
healthcare environments. The SAGA Data Recorder may also be used in domestic
areas.
