- No signal at all during infusion
- Isolation valve is open
- No spray from capillary
- Xevo QTof
- Xevo G2-XS
- Xevo G2-S
- Xevo G2
- Xevo TQ-S
- Xevo TQD
- Xevo TQ MS
- XevoTQ-S micro
- Xevo TQ-XS
The syringe pump was not purged correctly.
FIX or WORKAROUND
- Verify that the wash PEEK tube is completely submerged in solvent.
- Purge the syringe pump from the Tune page: Setup > Wash fluidics at least 10 times.
- Verify that the wash solvent flows up from the waste line during purge.
- Verify that the signal is present during infusion.