GE b30, User'S Reference Manual

Page: 61 / 242

System description
2-35
Default alarm limits
1
:
EtCO
2
high 8%, low 3%
FiCO
2
high 3%, low Off
Carbon dioxide (CO
2
)
Measurement range: 0 to 20 vol %
Resolution: 0.01%
Measurement rise time: < 300 ms with nominal flow
Accuracy: 0 to 15 vol% ± (0.2 vol % + 2% of reading)
15 to 20 vol% ± (0.7 vol % + 2% of reading)
Valid for respiration rate < 40 1/min at I:E ratio of 1:1. (Relative error is typically 10% for respiration rate 80
1/min at I:E ratio of 1:1.) The accuracy is specified in simulated ventilation. With higher respiration rates
and with varying ventilation methods the specifications may not be met.
Respiration rate
Breath detection: 1% change in CO
2
level
Measurement range: 4 to 80 breaths/min
Accuracy: ±1 breath/min in the range 4 to 20 breath/min,
±5% in the range 20 to 80 breath/min
Resolution: 1 breath/min
NOTE: CO
2
measurement is intended for patients who weigh over 5 kg (11 lb).
Modules with recorder, N-FREC and N-FCREC
Power consumption 3 W
Recorder type: Thermal array
Print resolution: vertical 8 dots/mm
horizontal 24 dots/mm
Paper width: 50 mm, printing width 48 mm
Traces: Selectable 1, 2 or 3 waveforms
Print speed: 1, 6.25, 12.5, 25 mm/s
1 Alarm limits and their adjustment range may vary depending on the mode used.