GEMINI™System Components 2050 and 2060
2050 2060
Figure 1
Vacuum Inlet and Exhaust Port
The vacuum inlet and exhaust port for both GEMINI™models are identifi ed in Figure 1. Be
certain to follow the guidelines in the Section 2: Installation.
WARNING
Never plug pump exhaust. Resulting pressure buildup will
cause pump to stall
On / Off Switch
Identify the On / Off switch for your Model in GEMINI™ Figure 1.
Vacuum Gauge and Regulator (Model 2060 only)
The vacuum gauge reads negative pressure - pressure below atmospheric. The reference point
for the gauge is atmospheric pressure. The vacuum level can be adjusted anywhere between
atmospheric pressure and maximum pump vacuum (230 Torr / 300 mBar).
GEMINI™Start-Up
After verifying that your vacuum application is correctly confi gured per Section 2: Installation,
turn on the pump On / Off switch. Welch recommends running the pump for a few minutes to
warm it up, before use. The warm-up improves the pumps ability to handle humid air.
Closing off the vacuum inlet line on Model 2060 will give gauged verifi cation of full vacuum
operation and will help in identifying the presence of leaks in the application system. Set
vacuum level by turning the regulator knob counter-clockwise to increase vacuum or clockwise
to decrease vacuum. Note: This procedure should be performed each time you use this device.
Be sure to call Welch technical service prior to start up at (847) 676-8800 if you have any
questions.
8
3.12
3.121
3.122
3.123
3.13
Inlet On/Off Switch
Outlet
On/Off Switch
Vacuum
Gauge
Inlet
Vacuum
Pressure
Regulator
Outlet
