How do you ballast the QDa performance pump? - WKB7227
Article number: 7227
OBJECTIVE or GOAL
Ballast the performance pump.
ENVIRONMENT
- ACQUITY QDa Mass Detector
PROCEDURE
The QDa must be in Standby when ballasting occurs.
Ballast of pump to be performed weekly for 15 mins
For the Vacuubrand RE6 pump
Once warmned, open the manual ballast valve by turning it so that the arrow points toward the inlet of the pump (see the photo below)
Close the ballast valve by turning so that the arrow points away from the inlet of the pump.
For the Edwards RV5 Rotary Pump
Once warmed, at the oil return input on the pump, rotate the gas ballast knob from 0 to I (Low Flow) or II (High Flow/Maximum Vapour Handling) depending on the amount of vapor in your process.
- Note: You will hear the pump run a bit louder, and you may notice an odor from the exhaust as volatile materials are flushed out.
Note: Ensure that the pump is returned to non-ballast mode for instrument operation.
To do this, push down and rotate the plug clockwise, so that the flat edges align with position 0.
