Shellab BACTRON600 - Manual (Page 35)

35 | P a g e
OPERATION (CONTINUED)
Establishing an Anaerobic Environment Continued
Note: If you have opened the left armor port door to install the catalyst, reinstall and secure the
door now. Leaving the left arm port unsecured may cause AMG to “stream” through the
chamber directly to the door, rather than building up and pushing out aerobic atmosphere,
from the left side of the chamber to the right.
8. Reinstall the right arm port door and secure it. From the snugly tightened positioned,
loosen the knob on the on the right arm port door by about half a turn. This should create a
small leak that aerobic atmosphere can be pushed out through.
a. AMG should pulse rather than flow continually into the chamber. The Chamber
Gas light should activate for 1 to 2 seconds before deactivating for 1 to 2
seconds. This will be accompanied by a clicking sound that is the gas solenoid
opening and closing.
b. If the interval between pulses are longer than 1 to 2 seconds, or if there is no
pulsing, slowly loosen the arm port knob until the interval decreases.
c. If gas continually pulses into the chamber, tighten the right arm port door knob
until an injection interval of 1 to 2 seconds is established. Continual streaming
means that gas is likely streaming through the chamber directly to a door,
rather than accumulating and creating the turbulence necessary to purge the
chamber atmosphere.
Note: Depending on ambient conditions (temperature of the room and humidity) there may be mild
or heavy condensation on the inside of the chamber during the gas purge. This is due to the
formation of water vapor during the catalytic reaction. Condensation should dissipate by the
end of the purge as oxygen decreases and the condensate controller removes water vapor
from the chamber atmosphere.
9. End state:
a. BACTRON300 (BACTRONII). When the purge process has gone through 200
psi of AMG or gone on for 2 hours (whichever happens first), tighten and
secure the right arm port door. Then carry out the
Installing the Sleeve
Assemblies , Chamber Entry , and Verifying Anaerobic Atmosphere
procedures on the following pages.
b. BACTRON600 (BACTRONIV) and BACTRON900 (BACTRONIV-900). When
the purge process has used 400 psi of AMG or gone on for 4 hours (whichever
happens first), tighten and secure the right arm port door. Then carry out the
Installing the Sleeve Assemblies , Chamber Entry , and Verifying
Anaerobic Atmosphere procedures on the following pages.