GE b30, Руководство пользователя

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B30 Patient Monitor
2-34
Default alarm limits
1
:
SpO
2
high Off, low 90%
PR high 160, low 40
NOTE: For each SpO
2
accessory, refer to the instructions for use in the accessory
package for patient weight limits and accuracy.
Modules with CO
2
measurement, N-FC and N-FCREC
Sampling rate: 150 ±25 ml/min (sampling line 2 to 3 m, normal conditions)
Maximum sampling line length: 6 m
Sampling delay: 2.1 s typical with a 3-m sampling line
Total system response time: 2.4 seconds typical with a 3-m sampling line, including sampling
delay and rise time (typically 3.7 seconds with a 6-m sampling
line)
Warm-up time: 1 min for operation, 30 min for full specification
Autozeroing interval: 4, 15, 30 and 60 minutes after start-up, then every 60 minutes
Automatic compensation for barometric pressure.
Gas values are measured in ATPD conditions (ambient temperature and pressure, dry). When CO2 is
displayed as a partial pressure (kPa, mmHg), the value can be alternatively shown as wet (BTPS, body
temperature and pressure saturated).
Non-disturbing gases are those with a maximum effect on the CO
2
reading at 5.0 vol% < 0.2 vol%. The
effect is valid for specific concentrations shown in parentheses of the non-disturbing gas:
Ethanol C
2
H
5
OH (<0.3%)
Acetone (<0.1%)
Methane CH
4
(<0.2%)
Nitrogen N
2
(0 to 100%)
water vapor (0 to 100%)
Dichlorofluoromethane (<1%)
Tetrafluoroethane (<1%)
Disturbing gases and their effect on the CO
2
reading at 5.0 vol-% CO
2
are shown below. Errors listed
reflect the effect of specific concentrations (shown in parentheses) of an individual disturbing gas and
should be combined when estimating the effect of gas mixtures:
Halothane (4%) increases < 0.3 vol%
Isoflurane(5%) increases < 0.4 vol%
Enflurane(5%) increases < 0.4 vol%
Desflurane(24%) increases < 1.2 vol%
Sevoflurane(6%) increases < 0.4 vol%
Helium (50%) decreases < 0.3 vol%
If O
2
compensation is not activated: O
2
(40 to 95%) decreases < 0.3 vol%
If O
2
compensation is activated: O
2
(40 to 95%) error < 0.15 vol%
If N
2
O compensation is not activated: N
2
O (40%) decreases < 0.4 vol%
If N
2
O compensation is activated: N
2
O (40 to 80%) error < 0.3 vol%
4 The reported SpO
2
pulse rate accuracy is the product specification. SpO
2
pulse rate accuracy tests with a simulator
yielded a PR error of less than 2 bpm (rms) over the whole measurement range.
1 Limits are adjustable: OFF to 51% for SpO
2
high
50 to 100% for SpO
2
low
250 to 35 bpm for PR high
30 to 245 bpm for PR low