Shellab BACTRON600 - Manual (Page 40)

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OPERATION (CONTINUED)
E XITING THE C HAMBER
The following steps are used to exit the chamber without pulling in aerobic
atmosphere.
1. Check that the exterior and interior pass box doors are both closed
and secured, to avoid drawing aerobic atmosphere through the pass
box.
2. Depress the GAS foot pedal (left) for one or two seconds. Charging
the sleeves with gas will help prevent them from constricting while
withdrawing from the chamber.
3. Grasp the arm port doors by the silver locking bars, and slowly
withdraw one arm, then the other. Inset the tabs on the doors into the
slots of the arm port assembly. Then tilt the doors toward you so that
they sit securely in the ports. Rotate both locking bars from the
diagonal to horizontal position.
4. Tighten the arm port door knobs until the knobs start to grab, using
wrist strength only.
5. Withdraw both hands from the cuffs. Exit the sleeves.
Door Check
6. Grasp both sleeves tightly, approximately three (3) to four (4) inches (7
– 10cm) behind the cuffs.
7. Gently and slowly push both sleeves towards the doors. This will
cause the sleeves to balloon up.
8. This creates pressure in the sleeves. If the manometer bubbles in
response, the doors are not sealed.
Note: Never physically press on the arm port doors to test the seal! Doing so,
especially doing so repeatedly, may warp front panel or damage the
doors.
9. If the manometer bubbles, renter the sleeves, and re-secure both arm
port doors.
10. When the arm port doors are sealed, slowly withdraw both arms from
the sleeves.
Figure 24: Securing the Arm
Port Doors