CLIMET INSTRUMENTS CI-154, Руководство пользователя, Страница: 33 / 98

CI-154 User’s Manual
Page 23
PER CM
mode. The advantage of the concentration count mode is that the user
constantly sees the relative concentration of particles in the area, and is more likely
to recognize what is normal for the area. In the cumulative count mode, the
concentration is not apparent until the end of the count cycle, and if the period is
followed by another sample period, the user may miss the final number altogether.
An advantage of the concentration count mode is that the user becomes more aware
of the transitory nature of particles in the air. The numbers may jump up for a time
as someone walks by, or a process starts, then drop back down again as the air
settles. Concentration mode is a tool that gives quicker answers to the condition of
the area.
To set the CI-154 up for concentration counts in cubic feet, press [
SET
-
UP
], then [
PER
CF
] in the display group. To set the CI-154 to display concentration in cubic meters
or liters, press [
PER CM
] or [
PER L
].
2.7 Printer settings
2.7.1 Large font
The printer may be set to print large or small fonts. Large fonts more readable, but
use more paper. Examples of printouts are given in the sections that follow.
2.7.2 End of sample printouts
The printer can be set up to print after each sample, and it can be set independently
of the display to suppress one or more data channels. To enable
end of sample
printouts, press [
SET
-
UP
] from the main screen, then press [
PRINT END OF SAMPLE
] on
the line marked printer. End of Sample printouts are enabled when the key is green.
To disable end of sample printouts, press [
PRINTER OFF
], so that this key is now
green, and the [
PRINT END OF SAMPLE
] key is now yellow.
To disable the printout of one or more channels, press [
REPORT
] from the main
screen. In the menu that appears, press the channel buttons following data to select
or deselect specific data channels. Press [
EXIT
] to return to the main screen.