Waters Xevo TQ-S Operator's, Overview And Maintenance Manual page 252

B External Connections
Caution:
spectrometer, ensure that the cables connect to the correct
receivers on the instrument.
12. Attach the cables from the pumps to the mass spectrometer as
follows:
• The cable for pump 1 attaches to the upper receiver on the mass
spectrometer.
• The cable for pump 2 attaches to the lower receiver on the mass
spectrometer.
252 February 28, 2014, 715002212 Rev. C
When you attach the cables from the pumps to the mass