AB Sciex 4500 Series System User's Manual page 47

The following figure shows the location of the parameters on the ion optics path.
1
Figure 5-1 Ion optics path and parameters
Item Parameter
1 IS (Ion Transfer
Voltage)
1 NC (Needle
Current)
1 ihe (Interface
Heater)
1 IHT (Interface
Heater
Temperature)
1 sdp
System User Guide
Document Number: D5030863 A
2
Parameter Use
Type
Source and For the PhotoSpray
gas parameter controls the voltage that
transfers the ions from the primary
ionization region towards the
curtain plate orifice.
Source and The NC parameter controls the
gas current applied to the corona
discharge needle in the APCI
probe, used in the Turbo V™
source. The discharge ionizes
solvent molecules, which in turn
ionize the sample molecules.
Source and The ihe parameter switches the
gas interface heater on and off. Heating
the interface helps maximize the
ion signal and prevents
contamination of the ion optics.
This should always stay on. The
button controlling the interface
heater reads ON when the
interface heater is on.
Source and The IHT parameter controls the
gas temperature of the NanoSpray
interface heater and is only
available if the NanoSpray ion
source and interface are installed.
Source and The sdp parameter controls the
gas selection of the DuoSpray™ ion
source probes: TurboIonSpray
probe or APCI probe
8 7 6
®
source, the IS
Basic Acquisition Methods
5
4
3
Scan Type
All
All
All
All
®
4500 Series of Instruments
47 of 142