Bacharach HI FLOW Sampler, Instruction

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Hi Flow Sampler Maintenance
Instruction 0055-9017
57
Figure 5-8. Flow Rate Validation Graph
5.
With a fully charged battery pack, the measured flow rate should be
greater than 9 cfm. If not, perform the following (see Figures 5-9
and 5-10):

Clean the gas sample inlet screen.

Ensure that the exhaust port is not obstructed.

Remove the unit’s cover and ensure that the high- and low-
sampling point hoses are properly connected between the flow-
measurement tube and their corresponding solenoid valves, and
that these hoses are not pinched or kinked.

Ensure that no obstruction is present inside the flow-
measurement tube.

If none of the above solves the problem, return the unit to your
nearest Bacharach Service Center for evaluation.