Scanwave Daughter Scan Mode; Leak Sensors; Vacuum System - Waters Xevo TQ-S Operator's, Overview And Maintenance Manual

ScanWave daughter scan mode

This operating mode is very similar to the conventional product ion mode in
that you can specify an ion of interest for fragmentation in the collision cell,
thus yielding structural information. Nevertheless, in this ScanWave mode,
the cell accumulates ions (intact or fragments) and then releases them,
according to their mass, in synchrony with the second quadrupole mass
analyzer. This mode results in a significant increase in the signal intensity of
full scan spectra.
ScanWave daughter scan mode:
Typical application
See "Product (daughter) ion mode" on page

Leak sensors

Leak sensors in the drip trays of the Xevo TQ-S continuously monitor the
instrument for leaks. A leak sensor stops system flow when its optical sensor
detects about 1.5 mL of accumulated leaked liquid in its surrounding
reservoir. At the same time, the Instrument Console displays an error
message alerting you that a leak has developed. (See Waters ACQUITY UPLC
Leak Sensor maintenance instructions for complete details.)

Vacuum system

Two external roughing (rotary vane) pumps (a dry-pump option is available)
and three internal turbomolecular pumps create the source vacuum. The
turbomolecular pumps evacuate the analyzer and ion transfer region.
1-18 Waters Xevo TQ-S Overview
MS1 Collision cell
Scanning ScanWave enabled
MS2
Scanning
(synchronized with
collision cell)
1-15.