- Needle seal readiness test fails
- ACQUITY H-Class
System pressure did not stabilize before test or was too low.
A leak is present on the system causing a high pressure difference value.
FIX or WORKAROUND
Set flow should be similar to initial testing (0.6ml/min) with similar pressure (~6000 - 8000psi) and allow pressure to stabilize before running this test.
If the test continues to fail replace injector parts (Seal, needle and seat port) and re-run the test.
Seat, Vespel w anti-rot, PN 405011492
Assy, Needle 15uL w Guide and Seat, PN 700005215
Seat Port Tubing 0.004 ID, PN 700005234