GE Healthcare Aestiva_5 MRI anesthesia machine - Manual (Page 6)

Pneumatic specifications, continued
O
2
controls
Method: Proportionate decrease of N
2
O, CO
2
, He/O
2
with reduction in O
2
pressure
Supply failure
alarm range:
193 kPa to 221 kPa/28 psig to 32 psig
Sounds at maximum volume every 10 seconds
O
2
flush range: 35 to 50 L/min
Flowmeters
O
2
ranges: Two tubes: 0.05 to 0.95 L/min and 1 to 15 L/min
Minimum O
2
flow: 50 mL/min ±25 mL
N
2
O ranges: Two tubes: 0 to 0.95 L/min and 1 to 10 L/min
Air range: One tube option: 1 to 15 L/min
Two tube option: 0 to 0.95 and 1 to 15 L/min
(low flow tube optional)
CO
2
(optional): One tube: 0 to 0.5 L/min
Heliox range
(optional):
One tube: 0 to 15 L/min
Calibration: Percent of Accuracy
full scale flow (% of flowrate)
100 ±2.5%
90 ±2.5%
80 ±2.6%
70 ±2.7%
60 ±2.9%
50 ±3.1%
40 ±3.4%
30 ±4.0%
20 ±5.0%
10 ±8.1%
Calibration
conditions:*
20°C/68°F, 101.3 kPa/760 mmHg
* Different breathing circuit pressures, barometric pressures or
temperatures change flowtube accuracy.
Hypoxic guard system
Type: Mechanical Link-25 ™
Range: Provides a nominal minimum 25%
concentration of oxygen in O
2
/N
2
O mixture.
Materials
All materials in contact with patient breathing gases are
free of natural rubber latex.
Environmental specifications
System operation
Temperature: 10° to 40°C/50° to 104°F
Humidity: 15 to 95% relative humidity
(non-condensing)
Altitude: –440 to 3565 m/500 to 800 mmHg
System storage
Temperature:
–25° to 65°C/–13° to 149°F
Humidity: 10 to 100% relative humidity
(including condensing)
Altitude: –440 to 5860 m/375 to 800 mmHg
Oxygen cell
storage:
–15° to 50°C/5° to 122°F
10 to 95% relative humidity
500 to 800 mmHg
Safety and compliance
Immunity: Complies with all requirements of EN 60601-1-2
Emissions: CISPR 11 group 1 class B
Approvals: UL 2601-1
CSA C22.2 #601.1
IEC 601-1
EN 60601-1
CE 0197
AN3175-E.qxd 19.6.2006 12:37 Sivu 6