Ecotech Acoem Serinus 30 - Page 149

Service
Page 149
32. If the instrument did not leak, skip to step 37.
33. Inspect the instrument’s plumbing looking for obvious damage. Check the condition of fittings and
O-rings from the calibration valve manifold up to the Calibration port.
34. When the location of the leak has been determined, repair and re-run the leak check procedure.
35. Slowly release the vacuum by gradually loosening the Kynar 1/4” blocker nut on the Calibration
Port, until the instrument has returned to ambient pressure.
36. Open - Main Menu → Service Menu → Diagnostics Menu → Valve Menu.
37. Enable - Valve Sequencing → Enabled.
38. Inspect the tubing again ensuring the tubing is cleanly connected to the fittings.
39. Remove the leak check jig and return the instrument to normal operation.
6.4.4.1 Leak Check (Internal pump option)
Equipment Required
• Barometer
• Kynar 1/4” Blocker Nuts
• 5/8” Spanner
• 9/16” Spanner
• 7/16” Spanner
Procedure
Note: Ensure that the instrument has been running for at least one hour before this procedure is
performed.
1. Disconnect all external tubing connected to the rear ports of the instrument.
2. Open - Main Menu → Service Menu → Diagnostics Menu → Internal Pump Menu.
3. Select - Pump Control → Manual - Accept.
4. Edit - Coarse - (set to 240) - Accept.
5. Edit - Fine - (set to 255) - Accept.
6. Open - Main Menu → Service Menu → Diagnostics Menu → Valve Menu.
7. Disable - Valve Sequencing → Disabled.
8. Close - Sample/Cal → Off.
9. Close - Internal Zero/Cal → Off.
10. Close - Pressurized Zero (OPT) → Off.
11. Close - Pressurized Span (OPT) → Off.
12. Connect the barometer to Sample Port.
13. Allow the internal pump time to evacuate the pneumatic system (the time required will depend on
the condition of the pump 1 - 2 minutes).
14. Turn the manual stop valve 90° (Close).
15. Open - Main Menu → Service Menu → Diagnostics Menu → Internal Pump Menu.