CareFusion BabyCO Meter, Operating Manual

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9
BabyCO Meter
Operating manual
Overview
The BabyCO meter is a hand held battery operated device used to
measure the concentration of carbon monoxide, CO, on the breath
and calculates the percentage of carboxyhaemoglobin, FCOHb, in the
foetal blood.
It is accurate, easy to use, and has many features designed to
simplify its operation.
These include: Auto zero function
Smoking level colour
light indicators
Simple calibration
Serial interface to PC
Please note: It is recommended that this unit be calibrated
upon receipt.
I. Introduction - English
The BabyCO meter is based on an electrochemical fuel cell sensor,
which works through the reaction of carbon monoxide (CO) with an
electrolyte at one electrode, and oxygen (from ambient air) at the
other. This reaction generates an electrical current proportional to
CO concentration. Output from the sensor is monitored by a
microprocessor, which detects peak expired concentrations of
alveolar gas. This is then converted to % foetal carboxyhaemoglobin
(%FCOHb) using the relationship %FCOHb = 0.313*Expired CO