Pointer Electromagnetic Information - Brainlab CRANIAL/ENT OPTICAL User Manual

Pointer Electromagnetic Information

4.5 Pointer Electromagnetic Information
Electromagnetic Compatibility: Declaration
Softouch and Z-touch require special precautions regarding electromagnetic compatibility and
must be installed and put into service according to the electromagnetic compatibility information
provided in this guide.
Portable and mobile radio frequency communication may affect Softouch and Z-touch.
NOTE: These guidelines may not apply in all situations. Electromagnetic propagation is affected
by absorption and reflection from structures, objects, and people.
Electromagnetic Environment
Floors should be wood, concrete, or ceramic tile to reduce electrostatic discharge. If floors are
covered with synthetic material, the relative humidity should be at least 30%. Power frequency
magnetic fields should be at levels characteristic of a typical location in a typical commercial or
hospital environment.
Portable and mobile RF communications equipment can affect Softouch and Z-touch. Field
strengths from fixed RF transmitters, as determined by an electromagnetic site survey,
less than the compliance level in each frequency range.
Standards
IEC 61000-4-3 Radiated RF
IEC 61000-4-6 Conducted RF
IEC 61000-4-4
IEC 61000-4-5 Surge
IEC
61000-4-11
IEC 61000-4-8
IEC 61000-4-2 Electrostatic discharge
NOTE:
To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site
survey should be considered. If the measured field strength in the location in which Softouch or
Z-touch is used exceeds the applicable RF compliance level above, Softouch or Z-touch should
be observed to verify normal operation. If abnormal performance is observed, additional measures
may be necessary, such as reorienting or relocation Softouch or Z-touch.
b
Over the 150 kHz to 80 MHz frequency range, field strengths should be less than [V1] V/m.
54
Immunity Test
Electrical fast transient/
burst
Power supply input
lines:
• Voltage dips
• Short interruptions
• Voltage variations
Power frequency (50/60
Hz) magnetic field
a
Field strengths from fixed RF transmitters cannot be theoretically predicted with accuracy.
b
IEC 60601 Test Level
3 V/m (80 MHz to 2.5 GHz)
3 V (150 kHz to 80 MHz)
eff
+/- 1 kV for input/output lines
+/- 2 kV for power supply lines
+/- 1 kV differential mode
+/- 2 kV common mode
<5% U (>95% dip in U ) for half cycle
T T
40% U (60% dip in U ) for 5 cycles
T T
70% U (30% dip in U ) for 25 cycles
T T
<5% U (>95% dip in U ) for 5 s
T T
3 A/m
+/- 8 kV air
+/- 6 kV contact
Instrument User Guide Rev. 2.3 Cranial/ENT Optical
a
should be
Compliance
Level
E1 = 3 V/m
V1 = 3 V
N/A
3 A/m
+/- 8 kV air
+/- 6 kV con-
tact