GE ArcamEBM Spectra H Operation Manual page 120

V V e e n n t t i i l l a a t t e e t t h h e e c c h h a a m m b b e e r r
It is possible to ventilate with air or Helium.
Ventilate with air if the temperature is at a safe level (material dependent).
A A b b o o r r t t v v e e n n t t i i l l a a t t i i o o n n
Stop ventilation of the chamber.
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