Labconco CentriVap Centrifugal Concentrators and Cold Traps 74750 Series - Manual (Page 32)

Chapter 6: Accessories for Your CentriVap
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Installing a Vacuum Gauge
A user-supplied vacuum gauge may be attached to the CentriVap to monitor the
vacuum level. Attach the vacuum gauge to the barb end of the Quick Disconnect
Coupling fitting that was supplied with the CentriVap using a length of suitable
rubber hose. The Quick Disconnect Coupling fitting can then be pushed into the
mating connector on the left side of the CentriVap located towards the rear. The
Quick Disconnect Coupling fitting can be removed from the mating connector by
pressing on the tab on the connector and then pulling out the Quick Disconnect
Coupling fitting. Always remove the Quick Disconnect Coupling from the
CentriVap if a vacuum gauge is not attached to it.