beautypg.com

INFICON HAPSITE ER Chemical Identification System User Manual

Page 371

background image

11 - 33

IP

N 07

4-

47

1-

P1

B

HAPSITE ER Operating Manual

Dwell . . . . . . . . . . . . . . . . . . . . . . . . This is the amount of time the Mass

Spectrometer will sample data at each
sampling point. The dwell can be set from
100 µs - 5,000 µs. 400 µs is recommended.
Increasing the Dwell decreases the
detection limit.

Lead In. . . . . . . . . . . . . . . . . . . . . . . This determines the number of points the

Mass Spectrometer will skip prior to scanning
the desired mass peak. Best practice is to set
the Lead In to at least a 1000 µs delay prior
to collecting data. The delay is based on
Lead In multiplied by the Dwell.

NOTE: The Mass Width, Extra, Dwell and Lead In values for each newly

entered Mass are inherited from the value in the row above the new
entry.

NOTE: To automatically fill any column, click in the desired cell and press

Ctrl+D. This automatically fills "down", with that cell’s value, to the end
of the column.