Verifying The Instrument's State Of Readiness; Monitoring The Mass Spectrometer Leds; Calibration; Flow Rates For The Xevo G2-Xs Qtof System - Waters Xevo G2-XS QTof Overview And Maintenance Manual

2.1.1 Verifying the instrument's state of readiness

When the instrument is in good operating condition, the power and Operate LEDs show steady
green. You can view any error messages in IntelliStart software (MassLynx) or UNIFI software.

2.1.2 Monitoring the mass spectrometer LEDs

Light-emitting diodes on the mass spectrometer indicate its operational status.
Power LED – The power LED, below the mass spectrometer's source, indicates when the mass
spectrometer is powered-on or powered-off.
Status LED – The status LED, on the right-hand side of the power LED, indicates the operating
condition. See the mass spectrometer's online Help for details on the status LED indications.
Table 2–1: Status information from the front of the instrument
Status LED
Off
Green
Amber
Flashing Green
Flashing Amber
Flashing Red
Red

2.1.3 Calibration

Calibrate the mass spectrometer prior to use. See the mass spectrometer's online Help.

2.1.4 Flow rates for the Xevo G2-XS QTof system

The Xevo G2-XS QTof system can run at high flow rates. To optimize desolvation and sensitivity,
run the system at appropriate gas flows and desolvation temperatures.
Table 2–2: Flow rate versus temperature and gas flow:
Flow rate (mL/min)
<0.021
0.021 to 0.100
0.101 to 0.300
0.301 to 0.500
Source temperature
(°C)
100
120
120
150
March 31, 2021, 715004496 Ver. 04 (previously released as Rev. D)
Instrument state
Standby
Operate
Source standby
Operate with pump override on
Standby with pump override on
Not at vacuum
RF trip
Desolvation
temperature (°C)
200
350
450
500
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Desolvation gas
flow (L/h)
800
800
800
1000