Waters Xevo TQD, Руководство оператора, обзор и техническое обслуживание

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4-24 Maintenance Procedures
2. Run the pump for 30 to 60 minutes.
Tip:
The roughing pump temperature usually increases during
ballasting. To maintain an ambient temperature of

40 °C (104 °F)
where the pump is located, ensure adequate ventilation.
3. Use the flat-blade screwdriver to turn the gas ballast valve to the closed,
, position.
Gas ballasting a pump with a handle-operated gas ballast valve
To gas ballast the roughing pump:
1. Move the gas ballast valve handle on the pump counterclockwise from
the horizontal position to the vertical position.
Warning:
To avoid burn injuries, take great care while working with the
roughing pump; it can be hot.
Caution:
To avoid damage, follow these guidelines:
• do not vent the instrument when the roughing pump is gas
ballasting.
• do not gas ballast the roughing pump while the instrument is in
Operate mode.
• avoid gas ballasting the roughing pump for more than 2 hours.
TP02654