Chapter 2, Maintenance
Operation Manual
GEMINI Twin-Port Sampler
2-3
NOTE:
The vacuum setting should read between 18” and
26” w.c.; the flow should read less than 2 ml/min.
5. Open the needle valve to adjust the flow to achieve 250 to
300 ml/min.
NOTE:
The vacuum setting should remain within 2” w.c. of the
reading noted after step 4.
