INFICON HAPSITE ER Chemical Identification System - Manual (Page 490)

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HAPSITE ER Operating Manual
Figure 16-8 Pressure Location on HAPSITE
Figure 16-9 MS Pressure on the Laptop
A MS Vacuum Pressure reading of Below Gauge Range indicates the HAPSITE
is ready to sample. If the MS Vacuum Pressure is 3E-3, order a new NEG Pump.
If the MS Vacuum Pressure is 6E-3, replace the NEG Pump.
NEG pumps have an expected life of approximately 150 hours. If the NEG Pump
has 70 hours or less consider trying a bakeout (formerly called Reactivation) to
extend the NEG Pump’s life. To check the NEG Pump hours used, go to the NEG
Status tab on the Properties menu.
NOTE: If the NEG Pump has more than 150 hours, a bakeout or reactivation can
be tried, though the results are likely to be limited.