Shel lab BACTRON300, Инструкция по установке и эксплуатации, Страница: 54 / 86

54 | P a g e
OPERATION (CONTINUED)
R
EACTIVATING THE
C
ATALYST
C
ARTRIDGES
Note: A flow of AMG for testing and cleaning can be obtained by disconnecting the foot pedal GAS
- VAC line from an arm port while the door is closed , and then depressing the GAS pedal.
An active catalyst cartridge must be installed in the workspace chamber to achieve and maintain
anaerobic conditions. A spare cartridge is provided with each BACTRON so that cartridges can be
swapped out for reactivation. For optimum performance, reactivate a catalyst cartridge after every
24 hours of use.
To reactivate, perform the following:
1. Heat the catalyst cartridge at 200°C overnight (a minimum of 8 hours).
a. The handle of the cartridge can be removed prior to heating, and reinstalled afterwards.
Use appropriate Personal Protective Equipment (PPE) to prevent burns.
A quality control test should be performed on each cartridge once per month.
1. Flow anaerobic mixed gas with hydrogen over a reactivated catalyst cartridge in a normal
aerobic atmosphere, or place the reactivated catalyst cartridge in the pass box and run a
full auto cycle.
a. The palladium coated pellets inside the catalyst cartridge should grow warm in the
presence of oxygen and hydrogen, indicating that the cartridge is ready for use.
2. If the cartridge does not heat up when exposed to AMG and oxygen, reheat to 200°C.
3. While the cartridge is still hot, flow AMG over the cartridge in an oxygen environment. This
helps remove buildups of hydrogen sulfides or other contaminants that interfere with
cartridge effectiveness.
4. Test the room temperature reactivated cartridge again with another flow of AMG in an
aerobic environment.
AMG C
ONSERVATION
M
ETHODS
1. Minimize the number of pass box cycles per day.
2. Moving a large number of items through the pass box in one transport reduces the volume
of AMG used in cycling the pass box.
3. When transporting a small number of items through the pass box, place a large solid object
in the box. This reduces the volume of gas utilized.
4. Introduce small, individual items such as sealed microplates or transport tubes, into the
workspace chamber through the sleeve assemblies, rather than the pass box.
5. Employ proper sleeve techniques when entering and exiting the workspace chamber.
6. Avoid fast or large movements while working in the chamber. Use a swimming motion,
withdrawing one arm partly into the arm port while reaching in with the other.