Bacharach HI FLOW Sampler User Manual

Maintenance Hi Flow Sampler
Instruction 0055-9017
56
5.7 Flow Rate Verification
This procedure verifies the instrument’s ability to provide sufficient
airflow to capture the entire gas leak, and to verify the accuracy of the
instrument’s calculated flow rate by using the optional external flow
meter (P/N 0055-0270).
Important: To assure accurate flow readings, conduct the following
procedure in clean air, free of any combustible gases.
1. Install the flow meter onto the Hi Flow Sampler’s gas intake as shown
in Figure 5-7.
2. Place the Hi Flow Sampler into its Manual 1-Stage Mode per
Section 3.14.2.2. Then start the blower by selecting Start from the
Main Screen.
3. Make note of the Flow(cfm) value as displayed on the Hi Flow
Sampler’s LCD, and the fpm flow rate as displayed on the external
flow meter.
4. Both Hi Flow Sampler's flow rate and the externally measured flow
rate should intersect within the two lines of the graph shown in
Figure 5-8. If the intersect point falls outside the two graph lines,
then return the unit to your nearest Bacharach Service Center for
evaluation.
Figure 5-7. Flow Meter Installation

Bacharach HI FLOW Sampler Specifications

General

Brand	Bacharach
Model	HI FLOW Sampler
Category	Measuring Instruments
Language	English