Heath Consultants Hi Flow Sampler - Manual (Page 20)

Operation Hi Flow

Sampler
20 Instruction 0055-9017
2.14.1 Automatic 2-Stage Measurement Mode
In the Automatic 2-Stage Mode the unit performs a leak rate measurement at first a
high flow rate for 1 minute, and then automatically shifts to a lower flow rate and
performs another measurement for another minute. The final measured and calculated
values are automatically saved in memory. This mode is used to measure leaks that are
easily identifiable and captured.
Select the automatic measurement mode as follows:
1. From the Expanded Main Screen, select Menu > Operating Mode.
2. Highlight Automatic 2-Stage, and then press the I/O ↵ key.
3. Press ESC to return to the Main Screen. Observe that (A) should appear at the
bottom of the screen.