Waters Xevo TQ MS, Operator And Maintenance Manual, Page: 32 / 184

1-16 Waters Xevo TQ MS Overview
with built-in Pirani and Penning gauges. The gauges also serve as switches,
stopping operation when vacuum loss is sensed.
A vacuum isolation valve isolates the source from the mass analyzer, allowing
routine source maintenance without venting.
Rear panel
The following figure shows the rear panel locations of the connectors used to
operate the mass spectrometer with external devices.
Mass spectrometer rear panel
TP03118
Auxiliary
10MB
/100MB
Activity
External Connections 2
10 1
External Connections 1
10 1
LA N
EPC Com Port
Video Output
Service Bus
1 2 3 4 5 6 7 8 9 10
+ -
Event In 1
External Connections 1
Not used
CE Interlock
OUT
+ -
Event In 2
Not used
- IN IN
Com N/C N/O
Com N/C N/O
1 2 3 4 5 6 7 8 9 10
+ -
Analogue Out
External Connections 2
OUT
Gas Fail Interlock
Not used
- OUT OUT
+ -
Event Out 1
+ -
Event Out 2
OUT
Event inputs
and outputs
Shielded Ethernet
Roughing pump relay switch
Source vacuum
Power connection
Source vent
Turbo vacuum
Nitrogen inlet
Collision cell
gas inlet
Pilot valve port