Teledyne BDS-3000 - Oxygen analyzer - Manual (Page 58)

Operation BDS 3000
Teledyne Analytical Instruments 44
During preamp testing there is a countdown in the lower right
corner of the screen. When the testing is complete, the results are
displayed.
Power: OK Analog: OK
Preamp: 3
The module is functioning properly if it is followed by OK. A
number indicates a problem in a specific area of the instrument. Refer to
Chapter 5 Maintenance and Troubleshooting for number code
information. The results screen alternates for a time with:
Press Any Key
To Continue . . .
Then the analyzer returns to the initial System screen.
4.3.6 Version Screen
Move the __arrow key to More and press Enter. With Version
blinking, press Enter. The screen displays the manufacturer, model, and
software version information.
4.3.7 Filter Function
The response time on the most sensitive range (ppb range) is user
definable from approximately 1-60 minutes. The adjustable filter allows
the user to tune the response of the analyzer to best balance sensor noise
and response time requirements. The factory default setting is 5 minutes.
The actual response time will depend on the user’s sample system (the
length and size the tubing of tubing as well as the sample flow rate).
The filter setting can be accessed by selecting SYSTEM on the
keypad followed by MORE on the display with the __keys. The filter
function is then selected and changed using the arrow keys. Press
ENTER and ANALYZE to return to analyze mode.
In the event of an over-range condition, the filter rate will
automatically switch to a faster setting (approximately 45 sec. response
time) for the duration of the over-range or upset condition. This feature
allows the analyzer to quickly respond to and track an upset condition.