Waters Autospec Premier Operator's Manual page 33

See Appendix C
shutting down the instrument.
Status switch positions and LED states
Switch Vacuum
position LED
Isolate Red
Standby Orange
Green
Operate Orange
Green
Orange
Green
for details of how to use the status switch when starting up or
Operate
Instrument state
LED
Red The system is totally isolated. You cannot turn
on high voltages or operate valves. You can vent
the source housing, if required.
Red The vacuum is not at a level where the system
can be operated.
Red The vacuum level is such that both ion gauges
have been switched on and the status switch
may be moved to the Operate position.
Orange The vacuum is not at a level where the
instrument can be switched into Operate mode.
Orange The instrument is in Standby mode, although
the vacuum is at a level where the instrument
can be switched into Operate mode.
Green The instrument is in Operate mode, but the
analyzer isolation valve is closed.
Green The instrument is in Operate mode and the
analyzer isolation valve is open.
Controls and connections on the front of the instrument 1-9