BAM 1020-9800 Manual Rev W.docx
Page 25
3.7 Initial Leak Check and Flow Check
The BAM 1020 comes with factory-set flow calibration parameters which will allow the BAM
1020 to accurately control the 16.70 L/min sample flow system right out of the box. However,
due to minor variations between different types of flow transfer standards, it is best to
calibrate the BAM flow system with your own traceable flow audit standard. Perform leak
checks and flow checks/calibrations as described in Section 5. Become comfortable with
these processes, as they will be performed on a routine basis.
3.8 Starting a Measurement Cycle
When the preceding setup steps of Section 3 have been completed, exit out to the main top
level menu. The “Status” line should display “ON” (no errors). If so, the BAM 1020 will start at
the top (beginning) of the next hour, and will continuously operate until commanded to stop.
The BAM 1020 will stop if the operator enters any of the SETUP or TEST menus. The BAM
1020 will also stop itself if a non-correctable error is encountered, such as broken filter tape
or failed air flow.
3.9 Accessing the Flow Statistics Screen
While the BAM 1020 is displaying the main menu screen, the
▼ button can be pressed and
the BAM will display a FLOW STATISTICS screen as shown below. This screen displays the
flow, temperature and pressure statistics for the current measurement cycle. Pressing the
▼
key again will further scroll down to the remaining parameters below the viewable area of the
display. This screen will not interrupt the sample cycle. This function is only available with
revision 3.2 firmware or later.
The FLOW STATISTICS Screen
03/28/2007 FLOW STATISTICS 16:26:30
SAMPLE START: 2007/03/28 16:08:30
ELAPSED: 00:18:00
FLOW RATE: 16.7 LPM
AVERAGE FLOW: 16.7 LPM
FLOW CV: 0.2%
VOLUME: 0.834m3
EXIT
FLOW FLAG: OFF
AT: 23.0
MAX AT: 23.5
AVERAGE AT: 23.0
MIN AT: 22.5
BP: 760
MAX BP: 765
AVERAGE BP: 760
MIN BP: 755
