Fluke Biomedical Index 2MF, User Manual

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Index 2MF
Users Guide
11-4
This is the equation used to obtain the R-values used in the Simulator, and presented on
the LCD screen.
Although the equation eliminates the effect of changes in the UUT flash amplitude on the
R-value, bulk attenuation of an actual finger is an important characteristic. By varying
rdc or irdc values and determining how large a range of variation is “not seen” by the
oximeter being tested, you can get a good idea of the oximeter's electronics' dynamic
range and its processing capability. This is independent of finger thickness and
pigmentation.
Note
By varying the ac term, you can determine the oximeter's ability to track
and hold a pleth wave as it weakens to zero, and then re-acquire the wave
as it strengthens.
Accessing Manufacturers' Tests
Access the manufacturers' test settings with the LCD screen.
Press the softkey OPTS on Main Menu 2.
fgg181.eps
The Advanced Options menu displays in the LCD with two menu options in addition to
the escape softkey.
esl144.eps
The following options become available on the Advanced Options menu:
•
SRC
Sets the pulse signal source
•
RVAL
Sets the R-value
•
esc Returns you to the Options Menu
Setting the Signal Source
1. Press the
SRC
softkey on the Advanced Options menu:
esl145.eps