Chapter 4 - 38 Liter Bubbler Installation
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9. Return to System Test -> Test Analog In. Compare PT1 pressure from values
recorded in step 5. Confirm change in pressure (Pressure decay) is less than 1psig,
0.2mA.
____________PSIG ___________mA
Note, if pressure drop is greater than specified, troubleshoot until pressure decay
meets this specification.
10. Cancel out of Manual Mode.
_____________PSIG __________mA (record values for test steps below)
4.5
Leak Test
– Main Manifold -> Pressure Decay
1. Confirm/Close MV1, MV10, MV15.
2. Go to Main Menu -> CHEM On and select Manual Mode.
3. Open V5 and V6. At Bubbler, open VB2.
4. Wait 15 minutes.
5. Close V5, V6 and Bubbler valve VB2.
6. Open V4, V1, V9, V6, V2 and V3 (V11 closed).
7. Place Manual Mode in Secure Mode.
8. Go to Main Menu -> EXT Fill and select Manual Mode.
9. Open V10.
10. Place Manual Mode in Secure Mode.
11. Wait 5 minutes.
12. Go to Main Menu -> CHEM On and select Manual Mode.
13. Close V1.
14. Place Manual Mode in Secure Mode.
15. Wait 15 minutes.
16. Return to System Test -> Test Analog In. Compare PT1 pressure from values
recorded in Leak Check Setup, above. Confirm change in pressure (Pressure decay)
is less than 1psig, 0.2mA.
____________PSIG ___________mA
Note, if pressure drop is greater than specified, troubleshoot until pressure decay
meets this specification.
4.6
Leak Test
– Vapor Out -> Pressure Decay
1. Confirm/Close MV1, MV10, MV15.
2. Enter Manual Mode, open V4, V1, V6, V3 and V11.
