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Revision B
GoodKnight 420G - Patient Manual 21
TECHNICAL CHARACTERISTICS
Device performance
Pressure range of the GoodKnight 420G: 4 cmH
2
O to 20 cmH
2
O ± 1 cmH
2
O
adjustable by increments of 0.5 cmH
2
O
Maximum achievable pressure at the patient connection
port under single fault condition: 24 cmH
2
O
Ramp time: 0 to 30 minutes ± 1 minute
device adjustable by 5-minute increments
Sound level measured in accordance with: 25.1 dBA
PrEN ISO 17510-1 :2001
Maximum sound level: 31 dBA at 10 cmH
2
O
Lifetime of the battery soldered onto the board: > 5 years
Physical characteristics
Dimensions (W x H x L ): 5.6 x 2.9 x 7.7 in (without power supply)
Weight: 1.54 lb (without power supply module)
Transport and storage conditions
Temperature: -20°C to +60°C (-4°F to +140°F)
Relative humidity: up to 95 % without condensation
Relative pressure range: 500 hPa to 1060 hPa
(1 hecto-Pascal
∼
1 cmH
2
O)
Conditions of use
Temperature: +5°C to +40°C (+41°F to +104°F)
Relative humidity: between 10 % and 95 % without condensation
Relative pressure range: 700 hPa to 1060 hPa
(1 hecto-Pascal
∼
1 cmH
2
O)
Operating Altitude: 0 to approximately 7,800 ft (0-2400 m)
Disposal of the GoodKnight 420G at the end of its life
In order to protect the environment, various parts of the equipment and its accessories must be
disposed of in conformity with the local regulations.