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Chapter 8
Chapter 8
Statistics Mode
Statistics Mode
This chapter describes setup and operation of the LASAIR II for use with
This chapter describes setup and operation of the LASAIR II for use with
certification statistics. When used for that purpose, it is said to be in the
certification statistics. When used for that purpose, it is said to be in the
Statistics Mode
Statistics Mode
. If you want to use the LASAIR II for routine sampling, see
. If you want to use the LASAIR II for routine sampling, see
chapter 4, “Setup” and Chapter 5 “Operation.” Depending on the chosen
chapter 4, “Setup” and Chapter 5 “Operation.” Depending on the chosen
certification standard and other variables, the LASAIR II will determine the
certification standard and other variables, the LASAIR II will determine the
minimum requirements to certify a cleanroom.
minimum requirements to certify a cleanroom.
LASAIR II supports the following standards:
LASAIR II supports the following standards:
••
ISO 14644-1
ISO 14644-1
••
EC-GMP
EC-GMP
••
Simultaneous EC-GMP and ISO 14644-1
Simultaneous EC-GMP and ISO 14644-1
••
FS-209E
FS-209E
••
BS5295
BS5295
In addition,
In addition,
Average
Average
mode calculates simple statistics on data from one o
mode calculates simple statistics on data from one or more
r more
locations.
locations.
The settings that may be changed vary
The settings that may be changed vary with the standard (or A
with the standard (or Average mode). If
verage mode). If
a standard does not allow change to a variable, that va
a standard does not allow change to a variable, that variable will be disabled in
riable will be disabled in
the setup screen.
the setup screen.
Statistics Mode Features
Statistics Mode Features
The LASAIR provides the following features while in statistics mode:
The LASAIR provides the following features while in statistics mode:
••
V
Valid parameter range
alid parameter ranges are automatically
s are automatically calculated
calculated
••
The room name is saved
The room name is saved as part of the data
as part of the data set. This is useful for performing
set. This is useful for performing
certifications of several areas at one time, then downloading
certifications of several areas at one time, then downloading Comma
Comma
Separated V
Separated Value (CSV) data
alue (CSV) data at a later time
at a later time for off-line calculations.
for off-line calculations.
••
A
A
Sample Acknowledge
Sample Acknowledge
mode allows the user to verify each sample before
mode allows the user to verify each sample before
accepting it as valid data.
accepting it as valid data. Rejecting the sample results will prevent its use in
Rejecting the sample results will prevent its use in
the statistical calculations.
the statistical calculations.
••
The
The
Auto-Increment
Auto-Increment
mode provides a means of automatically identifying
mode provides a means of automatically identifying
sequential sample locations, numerically without needing to manually input
sequential sample locations, numerically without needing to manually input
and select location names.
and select location names.
