BAM 1020-9800 Manual Rev W.docx
Page 93
BAM baud rate, serial cable connections, and polarity switch. A
“Done!” message will
be displayed in the computer window at the end of the update process.
After the flash firmware update:
•
Check or set the BAM baud rate back to the desired rate for regular data collection.
•
Reset the calibration of the filter temperature and filter RH sensors. Default and then
recalibrate the ambient temperature, pressure and flow in the TEST > FLOW screen.
Note:
Sometimes false field calibration values can end up in these parameters as a
result of firmware updates, and they must be cleared out for proper BAM operation.
•
Check and verify the settings in the SETUP > SAMPLE and SETUP > CALIBRATE
screens to ensure that they are still correct. It is always good practice to review all
settings after any firmware update.
9.8 Resetting the Data Pointer for New Data Collection
The BAM 1020 sets a data pointer when data files are retrieved. The pointer indicates the last
data record collected, so that next time
“new data” is retrieved, only data back to that pointer
is sent. This prevents collecting redundant data and needlessly large files. It is sometimes
helpful to be able to manually reset this pointer back to a specific record if it becomes
incorrectly set, such as if a modem hangs up in the middle of a download. BAM firmware rev
3.2.6 and later allows the data pointer to be manually reset by sending an escape command
through the serial port. Note: The REPORT port on the optional Report Processor back panel
uses different pointer reset commands. See the BX-965 manual.
The reset command is
<esc>FH<cr>
where
<esc>
is the esc key. F is the desired file
number of
3
(data log file),
6
(flow stats file), or
8
(5-min flow file). H is the number of hours
back from current to set the pointer (1 to 9999).
<cr>
is the enter key.
For example, sending
<esc>3 24<cr>
through the RS-232 port would set the data pointer of
the main BAM data memory back to 24 hours ago.
9.9 Data Collection Using the Query Output or Bayern-Hessen Protocol
BAM 1020 units equipped with revision 3.6.3 or later firmware are capable of outputting the
custom Query digital data array. European units with revision 5 series firmware are
compatible with the Bayern-Hessen data protocol. The format of the Query or BH data array
outputs is determined by the user-selected parameters in the SETUP > QUERY menu as
described in Section 6.10.
Note:
The Query output can only be accessed through the
REPORT serial port on the optional BX-965 Report Processor back panel.
Bayern-
Hessen “BH” Protocol:
The Bayern-Hessen protocol is used to support certain European data networks. The
complete protocol is not described in this manual, but is available a separate technical
document. The primary difference between the Query and the BH data configurations is that
the BH protocol does not support the time/date field used in the Query array, but the BH
protocol does support a diagnostic stability field which is not accessible with the Query array.