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GA0383P02 Rev. C
When AMBIENT ALARM is selected, the ambient alarm level will be displayed on the LCD
display. Press the UP ARROW key to increase it. Press the DOWN ARROW key to
decrease it. It cannot be decreased below the ambient warning level or increased beyond 99
percent. Press the ENTER key to save your changes and return to the SETUP MENU. Press
the FN key to discard the changes and return to the SETUP MENU.
Setting the Generator Gain
The generator gain determines the sensitivity of the submicron particle detector. The higher
the generator gain setting, the more sensitive the detector. The factory default value for the
generator gain is one. The generator gain can be changed by selecting GENERATOR GAIN
from the SETUP MENU.
When GENERATOR GAIN is selected, the generator gain will be displayed on the LCD
display. Press the UP ARROW key to increase the value; press the DOWN ARROW key to
decrease the value. The value cannot be decreased below one or increased beyond 9.9.
Press the ENTER key to save chances and return to the SETUP MENU; press the FN key to
discard the changes and return to the SETUP MENU.
Setting the Generator Warning Level
The generator warning level determines what electrical output from the cloud chamber
detector will trigger a WARNING indication. The generator warning level is expressed as a
percentage of full scale. A WARNING indication is given when the output of the cloud
chamber detector exceeds the value of generator warning level. The factory default is 50
percent; select GENERATOR WARNING from the SETUP MENU to change the default.
When GENERATOR WARNING is selected, the generator warning level is displayed on the
LCD display. Press the UP ARROW key to increase the level; press the DOWN ARROW to
decrease the level. The level cannot below one or increased beyond the generator alarm
level. Press the ENTER key to save changes and return to the SETUP MENU; press the FN
key to discard changes and return to the SETUP MENU.
Setting the Generator Alarm Level
The generator alarm level determines what electrical output from the cloud chamber detector
will trigger an ALARM indication. The generator alarm level is expressed as a percentage of
full scale. An ALARM indication is given when the output of the cloud chamber detector
exceeds the value of the generator alarm level. The factory default is 80 percent; the default
can be changed by selecting GENERATOR ALARM from the SETUP MENU.
Setting the Differential Warning Level
The differential warning level determines what electrical output from the cloud chamber
detector will trigger a WARNING indication. The differential warning level is expressed as a
percentage of full scale. A WARNING indication is given when the output of the cloud
chamber detector exceeds the value of the differential warning level. The factory default value
is 30 percent; the value can be changed by selecting DIFFERENTIAL WARNING from the
SETUP MENU.
When DIFFERENTIAL WARNING is selected, the differential warning level will be displayed
on the LCD display. Press the UP ARROW key to increase the value; press the DOWN
ARROW key to decrease the value. The value cannot be decreased below one or increased
(Setting the Ambient Alarm Level, cont’d)
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