Capnography (co2), Capnography (co – Welch Allyn Vital Signs Monitor, Propaq Encore - Quick Reference Guide User Manual
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Specifications
Welch Allyn Propaq Encore Vital Signs Monitor
Capnography (CO
2
)
Characteristic
Specification
CO
2
display
Screen Display
CO
2
waveform and ETCO
2
and INCO
2
(when in alarm) numerics
Numeric Display Ranges
ETCO
2
0-99 mmHg, 0-13.2 kPa, 0-23.1%
INCO
2
8
a
-25 mmHg, 1.1
a
-5 kPa, 1.1
a
-5%
a.
Lower if in alarm.
Waveform Scale
(Maximum)
0-100 mmHg, 0-14 kPa, 0-14%
Units
mmHg, kPa,%; user-selectable
Sweep Speed
3.13, 6.25, 12.5 mm/sec; user-selectable
Response Modes
Fast
15 sec sampling time period
Normal 30 sec sampling time period
Slow
45 sec sampling time period
Gas Compensation
OFF
CO
2
value = calculated CO
2
value;
O
2
> 50%, No N
2
OCO
2
value = calculated CO
2
value x 1.03;
N
2
O > 50%
CO
2
value = calculated CO
2
value x 0.952
Alarm Limit Ranges
ETCO
2
0-99 mmHg, 0-13.2 kPa, 0-13.2%
INCO
2
2-25 mmHg, 0.2-5 kPa, % (no lower limit)
Resolution
1 mmHg
Accuracy
Mainstream
b
0-30 mmHg, ± 3 mmHg
31-99 mmHg, ± 10% of value
Sidestream
c
0-30 mmHg, ± 3 mmHg
31-99 mmHg, ± 10% of value
b.
Based on these airway conditions: sensor 42
°
airway adapter temperature = 33
°
C, water vapor pressure
= 38 mmHg; standard gas mixture = CO
2
in balance air, fully hydrated at 33
°
C; barometric pressure = 760
mmHg and flow = 60 ml/min.
c.
Based on the following additional airway conditions: Sample line = 7 ft, 0.055 in ID (2.13 m, 1.4 mm ID);
Sample flow rate = 175 ml/min; Welch Allyn watertrap (new/unused); Respiratory rate
50 bpm, stable
to
±
3 breaths/min; Inspired/Expired time ratio = 1:2. Barometric pressure = 760 mmHg.
Altitude Error
± 0.4%/1,000 ft (304.8 m)
Breath rate display
Screen Display
Numeric
Breath rate (BR) source
When CO
2
is active, CO
2
is the BR source.
Otherwise, RESP from ECG is the RR source.
Units
Breaths/Minute
Range
Adult/Ped0 (apnea), 2 to 150 breaths/min
Neonate0 (apnea), 3 to 150 breaths/min
Resolution
± 1 breaths/min
Accuracy
± 1 breaths/min or ± 5%, whichever is greater
d
d.
For sidestream CO2, this applies only for BR
50.
Alarm Limits Range
Adult/Ped2 to 150 breaths/min
Neonate3 to 150 breaths/min
CO
2
performance
Specification
Per ISO 21647:2004
Apnea alarms and tickets
Apnea Ticket
Set to auto print after apnea event and after 1 minute continued
apnea
Apnea Alarm Accuracy
± 2 sec
Apnea delay setting
Adult/Ped = 6, 10, 15, 20, 25, 30 seconds
Neonate = 6, 10, 15, 20 seconds
Barometric pressure
Pressure Compensation
Automatic
Operating Range
-2,000 to 15,000 ft (-610 to 4572 m), 817 to 429 mmHg
Screen Display
Numeric (CO
2
Status Window)
Units
mmHg or kPa
Accuracy
± 3 mmHg or 2.5% of difference from calibration pressure,
whichever is greater