Inficon HAPSITE ER User Manual

9 - 12
HAPSITE ER Operating Manual
Observing Base Peak Gain (BPG)
Properly adjusted Base Peak Gain for a HAPSITE ER is between 0.4 to 0.6, ideally
at 0.50. (See Figure 9-23.) Ideal value for HAPSITE SmartPlus is 1.0.
Figure 9-23 Observing Base Peak Gain
9.4.4 Other Inputs
If you are unable to attain a satisfactory tune using the Resolution, Ion Energies,
and EM Volt, then further adjustments may be necessary. These should be made
only after contacting INFICON.
Additional Adjustment Control
 Focus volt adjusts the relative amplification of ions larger and smaller than 117,
i.e. raising amplification of larger ions and lowering smaller ions, OR raising
small ions and lowering larger ions. The ideal value is between 2 to 8.
 Emission current increases the power of the ionizer. Increasing this can help
raise BPG, but can also increase noise. The ideal value is 300 to 400.
Baseline and Threshold are indicative of noise, and should be less than 300 each.
(Threshold will always be higher than Baseline.)
Increasing EM volt will increase BPG. For
Hapsite ER, ideal value is 0.5. For
SmartPlus, ideal value is 1.0

Inficon HAPSITE ER Specifications

General

Mass Range	1 to 300 amu
Type	Portable Gas Chromatograph-Mass Spectrometer (GC-MS)
Operating Temperature Range	0° to 40°C (32° to 104°F)
Power Supply	110-240 VAC, 50/60 Hz
Data Storage	Internal memory with USB export capability
Sample Introduction	Direct Air, Thermal Desorption
Humidity Range	0 to 95% non-condensing
Technology	Gas Chromatography - Mass Spectrometry (GC-MS)
Connectivity	USB, Ethernet