Waters Autospec Premier Operator's Manual page 282

Fore Pumping readbacks
State Flag color Message
Off Yellow
On Yellow
On Green
Fine Pumping readbacks
Flag color Message
Red
Red
Red
Yellow
Red
Green
These conditions can also cause the pumps to be off:
• Anti-suck-back valves are closed (loss of compressed air supply).
• Pirani gauge trips.
• Pump has fails.
To adjust the Ion and Pirani gauge trip settings
1. In the Vacuum Control dialog box, enter the required value in the
appropriate Trip settings text box.
2. Click Return.
Alternative:
D-8 The MassLynx Tune window
Tripped
Tripped
Operational
Condition
Off Pump request off, pump cold.
Power Pump request on, pump power switched off.
Cooling Pump request off, pump hot.
Heating Pump request on, pump power switched on,
pump heating.
Cooling Trip Pump request on, cooling water failure.
Operational Pump request on, pump hot.
Adjust the appropriate slider.
Condition
Pump request off.
Pump request on, pumping with the
pressure still above the trip level.
Pump request on, pressure below the
trip level.