7. The solution temperature will increase until the set point of 34.00° C has been
attained. When the set point for the top housing is reached the status bar will no
longer blink and will be completely filled to the right (Figure 4).
8. After both set points have been reached there will be a period of approxi-
mately 1 minute before the ready screen will be displayed (Figure 5).
FIGURE 4
FIGURE 5
8
9. The simulator will beep indicating that it is ready. It is normal for the simula-
tor to display temperatures in the range of 33.95° C to 34.05° C.
10. Follow the operators manual provided by the manufacturer of the breath
analyzer being used for detailed instructions on how to connect and use the
simulator to perform a calibration or accuracy check. See diagram on next page
for basic hookup and operation.
When manually operating the simulator, take a deep breath and blow
into the mouthpiece firmly and steadily for a 4 to 7 second duration. The blow
-
ing technique should imitate a person providing a breath sample into the breath
test analyzer.
Rather than manually blowing into the simulator, the following alterna-
tive means also fulfill the requirement of providing air through the tubing at
-
tached to the simulator: the breath analyzers internal pump, a simulator bellows
pump, a pump-powered air source, or an atomizer. Several precision models of
pumps are available for purchase through Guth Laboratories, Inc.
