Glossary – Welch Allyn Duet CO2 Module - User Manual User Manual
Page 87

Duet CO
2
Module OEM Implementation Manual
Welch Allyn OEM Technologies
Confidential
Page 87
Glossary
ASCII-American Standard Code for Information Interchange.
ATPD- Ambient Temperature and Pressure, Dry Gas. Term used to describe the conditions
in which a gas measurement was taken.
absolute pressure transducer- An device that converts a non-electrical parameter, in this
case pressure, into an electrical signal. The ambient pressure transducer on the module is
used to measure either ambient barometric pressure or the internal bench pressure during
pump operation.
advisory- Used to describe the level of seriousness for fault messages. Usually indicates
casual user intervention required.
airway adapter- device used to interface mainstream sensor to a ventilator circuit. Adapter is
positioned between patient and Ventilator wye in the circuit.
auto run mode- One of three module operating modes. Autorun allows the module to operate
with minimal User or Host intervention. In autorun mode, the module does not revert to stand-
by mode during a watertrap removal.
bpm- breaths per minute.
BTPS- Body temperature, Ambient Pressure, Gas saturated with water vapor. Term used to
describe the conditions in which a gas measurement was taken.
BTPS compensation- Mathematical correction for the environmental differences between the
measurement site (i.e. the measurement bench) and “deep lung” CO
2
."
background CO
2
- Level of carbon dioxide present in the environment in which a CO
2
measurement is taken.
balance air- The remainder in a specific concentration of mixed gasses.
barometric pressure- The ambient pressure caused by atmospheric conditions.
baseline compensation- A mathematical correction used to account for the effect of low level
gas mixing during the inspiratory phase of a breath.
breath data- The breath rate results, derived from the breath algorithm, supplied by the
module to the Host system in packet form.
CS114- Conductive Electromagnetic Energy Test Standard (MIL-STD-461D)