INFICON HAPSITE Smart Plus Chemical Identification System - Manual (Page 522)

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HAPSITE Smart Plus Operating Manual
WARNING
The NEG Pump becomes very hot when in operation. The
software-controlled sequence provides a cool- down
period to remove the pump provides a cool-down period
before removing. This sequencing must not be
bypassed. In addition to the danger of burns from
handling the hot flange, the reactive metal alloys within
the pump can ignite if exposed to atmospheric pressure
while hot. If this should occur, drop the pump into a
bucket of sand and cover the hot NEG Pump with
additional sand. If this step is not practical, set the pump
on its black plastic base on a non-flammable surface. The
NEG Pump will burn out in a few minutes.
4 When the screen shows Vent Manifold Has Been Completed, unplug the
NEG Pump’s black cable from the inside of the front panel by loosening the
locking ring. Then pull the connector straight back.
WARNING
Burn Hazard. DO NOT disconnect the NEG Pump’s black
cable before receiving the "Vent Manifold Has Been
Completed" message. Disconnecting the black cable will
also disconnect the temperature sensor. Due to the
disconnection, the temperature sensor may read that the
NEG is cold, when in fact, the NEG is still hot.