VAC DRI-TRAIN HE-493, Техническое руководство, Страница: 31 / 61

VAC ____________________
Vacuum/Atmospheres
LARGE QUANTITIES OF HALIDES, CHLORIDES, HALOGENS
(FREON), ALCOHOLS, HYDRAZINE, PHOSPHENE, ARSINE,
ARSINATE, MERCURY AND SATURATION WITH WATER MAY ALSO
DEACTIVATE THE OXYGEN REACTANT IN THE ORI-TRAIN.
THE MOISTURE AND ADSORBENT IS NOT AFFECTED BY THESE
CHEMICALS.
THE REACTANT IN THE REDUCED STATE SHOULD ALWAYS BE
REGENERATED WITH THE RECOMMENDED 5% H2 + INERT GAS
MIXTURE. IF 02 IS ACCIDENTALLY USED, THE REACTANT
WILL BE DEACTIVATED.
IF ANY OF THE
11 POISONS 11 IN ABOVE PARAGRAPHS ARE TO
BE USED IN THE ORI -LAB ( GLOVE BOX) SERVED BY THE
ORI-TRAIN, A SUITABLE TRAP SHOULD BE INSTALLED IN
THE LAB OR IN THE CIRCULATING LINE AHEAD OF THE
TRAIN.
D. Close Circulation Inlet and Circulation Outlet valves (A & B).
E. Turn REGENERATION TIMER indicator counter clockwise to START.
F. Turn REGENERATE/CIRCULATE switch to REGENERATE. Timer will auto­
matically cycle slowly to VACUUM.
i.
Three hour HEAT cycle.
ii. One hour in PURGE cycle.
iii. Eight hours in vacuum cycle.
G. After the above twelve hours (or more), turn REGENERATE/OFF switch
to OFF. (This must be done manually a s REGENERATION TIMER will
remain in VACUUM mode until- switch is turned off.)
H. Open Circulation Valves A and B.
I. Turn REGENERATE/CIRCULATE switch to CIRCULATE.
This is the end of the Regeneration Cycle.
I
Note
I
Vacuum pump oil should be changed after each regen­
eration cycle.
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