Bravo pH Monitoring System 38 User Guide
chapter.fm 3/21/16 4:05 pm
5.5 x 7.75 inches (140 mm x 197 mm)
Table 2. Electromagnetic immunity
Bravo recorder is intended for use in the electromagnetic environment specified below. The customer or the user of
Bravo recorder should assure that it is used in such an environment.
Immunity test EN 60601 test
level
Compliance
level
Electromagnetic environment – guidance
Electrostatic discharge
(ESD): EN 61000-4-2]
±6 kV contact
±8 kV air
±6 kV contact
±8 kV air
Floors should be wood, concrete, or ceramic
tile. If floors are covered with synthetic material,
the relative humidity should be at least 30%.
Electrical fast transient/
burst: EN 61000-4-4
±2 kV for power
supply lines
±1 kV for input/
output lines
N/A
Not Applicable. Battery-powered device with
signal line not longer than 1 meter.
Surge: EN 61000-4-5
±1 kV differential
mode
±2 kV common
mode
N/A
Not Applicable. Battery-powered device with
signal line not longer than 1 meter.
Voltage dips, short
interruptions and
voltage variations on
power supply input
lines: EN 61000-4-11
<5% U
T
(>95% dip in U
T
)
for 0.5 cycle
N/A
Not Applicable. Battery-powered device.
40% U
T
(60% dip in U
T
)
for 5 cycles
N/A
70% U
T
(30% dip in U
T
)
for 25 cycles
N/A
<5% U
T
(>95% dip in U
T
)
for 5 sec
N/A
Power frequency (50/
60 Hz) magnetic field:
EN 61000-4-8
[All devices]
3 A/m 3 A/m
Power frequency magnetic fields should be at
levels characteristic of a typical location in a
typical commercial or hospital environment.
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