Welch Allyn 20хEL Propaq Encore Vital Signs Monitor - Reference Guide User Manual

Page 147

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Capnography (CO

2

)

Propaq Encore Reference Guide

147

Welch Allyn

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

a.Lower if in alarm.
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.

d.For Sidestream CO2, this applies only for BR

50..

Characteristic

Specification

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