Maintenance and Calibration
Performing a Flow Calibration
5-36
PDM3700 Instruction Manual
Thermo Fisher Scientific
Figure 5–51.
Flow rate calibration active display
11.
When the flow rate reading on the flow meter matches 2.2 lpm, record
the flow rate reading (from the flow meter) into the “No Restriction”
(lpm) white box. Wait 2-3 minutes to ensure the flow meter is stable.
12.
Select the “Apply” button. The PDM3700 unit will begin the flow
calibration routine and will display a “Please wait, gathering data”
message on the Flow Calibration screen.
13.
A Warning/Confirmation screen will display with an “Attach orifice”
message.
14.
Remove the tubing adapter from the sample line.
15.
Locate the black (0.033-inch) orifice. Install one end of the orifice into
the sample line then install the other end into the tubing that is
attached to the flow meter (
Figure 5–52
and
Figure 5–53
).
