Maintenance and Calibration
Performing a Flow Audit
Thermo Fisher Scientific
PDM3700 Instruction Manual
5-13
Users should perform a flow audit on the unit once per month, or as
necessary. Prior to performing a flow audit, complete the sample line leak
check.
Tool and materials needed for this procedure:
●
Flow meter
●
Flow audit tubing adapter or other methods to connect flow meter to
PDM (use as necessary)
Note
These instructions are given for one type of flow audit device that
requires the supplied tubing adapters. Other audit devices may need other
adapters or no adapters at all. Modify these instructions as necessary based
on the audit device being used.
✳
1.
Disconnect the sample line from the inlet bracket.
2.
Install one end of the tubing adapter into the sample line from the
sample inlet assembly and the other end of the tubing adapter into the
tubing that is attached to the flow meter (
Figure 5–19
and
Figure 5–
20
).
Figure 5–19.
Flow audit/tubing adapter
Figure 5–20.
Installing the flow/audit/tubing adapter
3.
Connect the PDM3700 unit to the charger and make sure the charger
is connected to your PC.
Performing a
Flow Audit
To perform a flow audit:
