RGA Cart Operation (Brady Robertson)

documents:

1. LCLS Procedure for Vacuum Qualification RGA Scans
2. LCLS Vacuum Policy

3. MKS RGA hardware manual

4. MKS RGA software manual

5. Amanda's doc: RGA Cart Maintenance and Operation

.

Start up and shut down procedures:

General

prep

Bring an N2 cylinder, regulator, and clean hose. Attach that to the cart.

begin venting the cart with the N2

remove the blank at the end of the hose

Attach the cart to the to-be-qualified chamber, but do not(!) valve in

Cart specific

Carts 1 & 2

Cart startup procedure:

Carts 3 & 4

Cart startup procedure:

1. Plug in the cart

2. Hit start (F1, circled in pic). This will turn on the roughing and turbo

1. 1. 1. Open the gate valve on top of the turbo
      2. When turbo hits ~200Hz: Turn on the CCG
      3. Wait for turbo to settle at 1000Hz and 1A (info on display).

1. 1. 1. If this happens, you’re DONE!
      2. If this does not happen, begin troubleshooting: checking pressure, looking for leaks.
         1. If issues persist, initiate cart shutdown:

1. 1. 1. 1. 1. 1. open the N2 cylinder and regulator
               2. confirm N2 is coming out of the cart’s PRV
               3. close the gate valve on top of turbo
               4. hit Stop (also F1). This stops the turbo + roughing, and automatically vents through the turbo.
               5. open the small N2 valve on left side of cart, this vents N2 above the closed gate valve.
               6. wait for vent to complete, confirm N2 is coming out of the cart’s PRV
               7. close the small N2 valve on left side of cart, close the N2 cylinder

Cart 5

Carts 6 & 7