BAM 1020-9800 Manual Rev W.docx
Page 83
Terminal Window showing BAM 1020 menu
9.4 System Menu and File Descriptions Using a Terminal Program
Once a serial connection between a terminal program and the BAM 1020 has been
established as shown above, you will have access to the main BAM 1020 System Menu.
Each number 0-9 represents a different data file you can download from the BAM 1020. Each
file is described below. To get the desired file, simply press the appropriate number on your
keyboard.
Note:
After a few minutes, the BAM will stop waiting for a command and you will
have to press ENTER three times to reestablish the asterisk command prompt, then send
another
“h”
to refresh the menu. If you already know the number of the file you want, you
can skip the H menu altogether.
Files 1, 2, and 3:
Current Day Data, All Data, New Data:
These files are simple text views, and are for easy visual checks of the data only, because it
is difficult to import these into a spreadsheet for analysis. An example of the data format is
shown below. File 1 Current Data is data from the current day only. File 2 All Data is all of the
data in the BAM separated into daily blocks. File 3 New Data is all data since the last
download, also in daily blocks. A data pointer is set in the BAM indicating where the last
download stopped. See Section 9.8.
The first data column is the time, followed by a series of dashes which represent error or
alarm bits. If an error occurred, a letter representing the error will appear in this field. For this
example, at 7:00 am an
“L”
error (power failure) occurred. Then at 8:00 an
“M”
error was
logged, indicating that the operator was performing maintenance that hour.
The next column is the concentration. The Qtot column is total flow volume for the hour. With
a flow rate of 16.70 L/min and a sample time of 50 minutes, this value will be about .834 m
3
per hour. With a sample time of 42 minutes this value will be about 0.701 m
3
per hour. The
remaining six columns are the six data logger inputs on the BAM. In this example RH was
logged on channel 4, and Ambient Temperature was logged on channel 6. The other four
channels had nothing attached, but will appear in the array anyway. The data shown on the
unused channels is only noise.
