Waters Xevo TQ MS, Operator And Maintenance Manual, Page: 153 / 184

Connecting the Varian oil-filled roughing pump C-7
Making the electrical connections to the Varian oil-filled roughing
pump
Roughing pump connections
To make the electrical connections to the oil-filled roughing pump
1. Connect the roughing pump power cord to the main power source.
2. Connect the relay cable from the roughing pump d.c. connector to the
pump connector on the mass spectrometer’s rear panel.
TP03159
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
Roughing pump main
power connector
To power source
Roughing pump
d.c. connector
Roughing pump
connector