Shel lab BACTRON300, Инструкция по установке и эксплуатации, Страница: 61 / 86

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USER MAINTENANCE (CONTINUED)
Check the Arm Port Doors
Failure to correctly close and seal the arm ports can result in the chamber leaking anaerobic
atmosphere and increasing the rate of gas injections while sitting undisturbed.
10. Check the door ring seals for signs of damage or excessive wear. Replace the rings if there
are obvious signs of damage or wear.
11. Check that the arm port doors are sealed and secure when not in use.
a. The locking bars should be in the horizontal position.
b. The knobs should be tightened clockwise using only wrist strength. Tightening the
knobs too far can damage the doors by pulling out of position the threaded post the
knob and locking bar are mounted on. This can result in a leak of chamber atmosphere
around the post.
Locating Leaks
A gas leak detector capable of detecting hydrogen (Part Number 4600501) can be used to locate
leaks along the sealed edges of the acrylic glass panels, arm port doors, the outer pass box door,
back panel, as well as the side incubator in the BACTRON600 and 900.
The manometer exhaust port on the back of the BACTRON will register as a leak under normal
operating conditions. Some hydrogen gas naturally diffuses through the water-filled manometer.
Do
not seal or otherwise obstruct the manometer exhaust port. Doing so compromises the
BACTRON overpressure and gas regulation system, and voids the manufacturing defect warranty.
Fixing a Leak
Contact your institutional maintenance department or Sheldon Technical Support for assistance if a
leak is confirmed, or if heightened gas consumption is not restricted to periods of increased use.
Excessive AMG Usage During Work Hours
Check the following items if AMG usage is excessive when users are working in the BACTRON.

Verify users are operating the pass box correctly

Check that users are employing correct sleeve donning, entry, and exit procedures.

Check the integrity of the sleeves and sleeve components.

Read the AMG Conservation Methods entry on page 54 for ways to reduce AMG usage.