E
Electromagnetic Immunity
The Welch Allyn SureTemp Plus is intended for use in the electromagnetic environment specified below.
The customer or user of the Welch Allyn thermometer should assure that it is used in such an environ-
ment.
Immunity Test
IEC 60601 Test
Level
Compliance
Level
Electromagnetic Environment - Guidance
Electrostatic dis-
charge (ESD)
IEC 61000-4-2
± 8 kV contact
± 15 kV air
± 8 kV contact
± 15 kV air
Floors should be wood, concrete, or ceramic
tile. If floors are covered with synthetic mate-
rial, the relative humidity should be at least
30%.
Electrical fast
transient/burst
IEC 61000-4-4
±2 kV for power
supply lines
±1 kV for input/
output lines
±2 kV for power
supply lines
±1 kV for input/
output lines
Not Applicable - Battery powered Device
Surge
IEC 61000-4-5
±1 kV differential
mode
±1 and ±2 kV
common mode
±1 kV differential
mode
±1 and ±2 kV
common mode
Not Applicable - Battery powered Device
Voltage dips,
short interrup-
tions, and voltage
variations on
power supply
input lines.
IEC 61000-4-11
<0% U
T
(>100% dip in U
T
)
for 1 cycle
70% U
T
(30% dip in U
T
)
for 25/30 cycles
<0 % U
T
(>100 % drop in
U
T
)
for .5 cycles@0°,
45°, 90°, 135°,
180°, 225°, 270°,
& 315° for 250/
300 cycles.
<0% U
T
(>100% dip in U
T
)
for 1 cycle
70% U
T
(30% dip in U
T
)
for 25/30 cycles
<0 % U
T
(>100% drop in
U
T
)
for .5 cycles@0°,
45°, 90°, 135°,
180°, 225°, 270°,
& 315° for 250/
300 cycles.
Not Applicable - Battery powered Device