Chapter 4 - 38 Liter Bubbler Installation
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Figure 4-2: 38 Liter Bubbler Top View
4.4
Bubbler and System Leak Test
– Setup
Use following to establish pressure decay base reading for all Leak Check test steps
below. Record pressure decay base reading below.
1. At the Main Menu, enter Config Menu -> System Setup -> and select Disable Valve
Locks
2. At Main Display, step to CHEM ON Menu and enter Manual Mode. Select and open
valve V4 and V1.
3. Set R1 to maximum setting ~ 60-80 psig. Refer to BUBBLER PT1 AND R1
TEST/SETUP in above section.
4. Set PTI High Push Pressure Setpoint to 85
5. Wait for 5 minutes. Place Manual Mode in Secure Mode.
6. From the Main Menu, enter Config Menu -> System Test -> Test Analog In. Record
values of PT1, Gross and Raw.
____________ PSIG ___________mA
7. Enter Manual Mode, close V1.
8. Wait 5 minutes.