Guidance and manufacturer’s declaration – electromagnetic immunity
The ResMed S7 Lightweight is intended for use in the electromagnetic environment specified below. The customer or the user of the ResMed S7 Lightweight should assure that it is used in such an environment.
Immunity test | Compliance level | Electromagnetic | ||
test level | environment | |||
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Electrostatic | ±6 kV contact | ±6 kV contact | Floors should be wood, | |
discharge (ESD) |
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| concrete or ceramic tile. If | |
IEC | ±8 kV air | ±8 kV air | floors are covered with | |
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| synthetic material, the | |
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| relative humidity should be | |
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| at least 30%. | |
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Electrical fast | ±2 kV for power | ±2 kV | Mains power quality should | |
transient/burst | supply lines |
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IEC |
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| commercial or hospital | |
| ±1 kV for input/ | Not Applicable | environment. | |
| output lines |
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Surge | ±1 kV differential | ±1 kV differential | Mains power quality should | |
IEC | mode | mode | be that of a typical | |
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| commercial or hospital | |
| ±2 kV common | ±2 kV common | environment. | |
| mode | mode |
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Voltage dips, short | <5% Ut | < 12V | Mains power quality should | |
interruptions and | (>95% dip in Ut) | (>95% dip in 240V) | be that of a typical | |
voltage variations on | for 0.5 cycle | for 0.5 cycle | commercial or hospital | |
power supply input |
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| environment. | |
lines. | 40% Ut | 96V | If the user of the ResMed S7 | |
IEC | (60% dip in Ut) | (60% dip in 240V) | Lightweight requires | |
| for 5 cycles | for 5 cycles | continued operation during | |
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| power mains interruptions, it | |
| 70% Ut | 168V | is recommended that the | |
| (30% dip in Ut) | (30% dip in 240V) | ResMed S7 Lightweight be | |
| for 25 cycles | for 25 cycles | powered from an | |
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| uninterruptible power source | |
| <5% Ut | <12V |
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| (>95%dip in Ut) | (>95%dip in 240V) |
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| for 5 sec | for 5 sec |
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Power frequency | 3 A/m | 3 A/m | Power frequency magnetic | |
(50/60 Hz) |
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| fields should be at levels | |
magnetic field |
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| characteristic of a typical | |
IEC |
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| location in a typical | |
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| commercial or hospital | |
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| environment | |
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NOTE: Ut is the a.c. mains voltage prior to application of the test level. |
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