Zeiss Humphrey matrix User Manual page 58

Guidance and manufacturer's declaration - electromagnetic immunity
The Humphrey Matrix is intended for use in the electromagnetic environment specified below. The
customer or the user of the Humphrey Matrix should assure that is used in such an environment.
IEC 60601 test
Immunity test
Electrostatic
Discharge
(ESD)
IEC 61000-4-2
±2 kV for power
Electrical fast
transient/burst
±1 kV for input/out-
IEC 61000-4-4
±1 kV differential
Surge
IEC 61000-4-5
±2 kV common
<5 % U
in U
Voltage dips,
40 % U
short
interruptions, in U
and voltage
70% U
variations on
power supply
input lines.
IEC 61000-4-11
<5 % U
in U
Power
frequency (50/
60 Hz)
magnetic field
IEC 61000-4-8
NOTE U is the a.c. mains voltage prior to application of the test level.
T
54
Compliance level
level
±6 kV contact ±6 kV contact
± 8 kV air
±2 kV for power
supply lines
±1 kV for input/out-
put lines
±1 kV differential
mode
±2 kV common
mode
<5 % U
(>95% dip
T
in U
) for 0,5 cycle
T
40 % U
(60% dip
T
in U
) for 5 cycles
T
70% U
(30% dip
T
) for 25
in U
T
cycles
<5 % U
(95 % dip
T
) for 5 sec in U
T
3 A/m
Electromagnetic environment -
Floors should be wood, concrete, or
ceramic tile. If floors are covered with
synthetic material, the relative humidity
± 8 kV air
should be at least 30%.
Mains power quality should be that of a
supply lines
typical commercial or hospital
environment.
put lines
Mains power quality should be that of a
mode
typical commercial or hospital
environment.
mode
(>95% dip
T
) for 0,5 cycle
T
Mains power quality should be that of a
(60% dip
typical commercial or hospital
T
) for 5 cycles
environment. If the user of the
T
Humphrey Matrix requires continued
(30% dip
T
operation during power mains
) for 25
in U
interruptions, it is recommended that
T
the Humphrey Matrix be powered from
cycles
an interruptible source.
(95 % dip
T
) for 5 sec
T
Power frequency magnetic fields
should be at levels characteristic of a
3 A/m
typical location in a typical commercial
or hospital environment.
Humphrey Matrix Visual Field Instrument
guidance
Rev. D 08/21/06 PN 701692