Welch Allyn 690 Directions For Use Manual page 25

Directions for use
The Welch Allyn SureTemp Plus model 690 and 692 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 environment.
Immunity Test IEC 60601 Test
Electrostatic ± 6 kV contact
discharge (ESD)
IEC 61000-4-2
Electrical fast ±2 kV for power
transient/burst
IEC 61000-4-4 ±1 kV for input/
Surge ±1 kV differential
IEC 61000-4-5
±2 kV common
Voltage dips, short
interruptions, and (>95% dip in U
voltage variations
on power supply
input lines.
(60% dip in U
IEC 61000-4-11
(>95% dip in U
(>95% dip in U
for 5 seconds
Power frequency
(50/60Hz) magnetic
field
IEC 61000-4-8
Note: U is the AC mains voltage prior to application of the test level.
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Electromagnetic Immunity
Compliance Level
Level
± 6 kV contact
± 8 kV air ± 8 kV air
±2 kV for power
supply lines supply lines
±1 kV for input/
output lines output lines
±1 kV differential
mode mode
±2 kV common
mode mode
<5% U <5% U
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) (>95% dip in U
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for 0.5 cycle for 0.5 cycle
40% U 40% U
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) (60% dip in U
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for 5 cycles for 5 cycles
70% U 70% U
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) (>95% dip in U
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for 25 cycles for 25 cycles
<5% U <5% U
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) (>95% dip in U
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for 5 seconds
3 A/m 3 A/m
Electromagnetic Environment - Guidance
Floors should be wood, concrete, or ceramic tile. If
floors are covered with synthetic material, the
relative humidity should be at least 30%.
Mains power quality should be that of a typical
commercial or hospital environment.
Mains power quality should be that of a typical
commercial or hospital environment.
Mains power quality should be that of a typical
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) commercial or hospital environment. If the user of
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the Welch Allyn SureTemp Plus 690 and 692
requires continued operation during power mains
interruptions, it is recommended that the Welch
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) Allyn SureTemp Plus be powered from an
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uninterruptible power supply or battery.
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)
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)
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Power frequency magnetic fields should be at
levels characteristic of a typical location in a typical
commercial or hospital environment.
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