Chelsea Technologies Group
tracka
User Guide HB179 Issue 7.0
match the Fo values expected. The user should refer to the Analogue Output
section of this manual for more information.
J. PMT calibration threshold is - This value sets the threshold under which the PMT
calibration routine is not allowed to fail. This value is set at the factory and should not
be changed by the user unless instructed to do so by CI Technical support.
K. Ref calibration threshold is - This value sets the threshold under which the reference
signal is set not to fail. This value is set at the factory and should not be changed by
the user unless instructed to do so by CI Technical support.
L. Set PMT Gain constants: These instrument units are set at the factory to accurately
program the fluorescence detector gain.
M. Check PMT Calibration: Choosing this option runs an automatic check of the PMT
calibration and sends this information to the PMT Calibration Log. The optical head
needs to be in the dark under a hood for this test to be properly performed,
otherwise the test may return unreasonable values.
X. Reset Configuration: This option clears all configuration information and restores “safe”
values into configuration.
5.3.2 Error and PMT Log Menu
The Error and PMT Log menu is used to monitor system errors and the state of the PMT
fluorescence detector calibration. For each of these two logs, either the log may be viewed or
cleared in total. The log menu looks as follows:
=====================
Log Menu
=====================
A. Print Error Log
B. Clear Error Log
C. Print PMT Calibration History
D. Clear PMT Calibration History
Press 0 to return
The Error Log returns time stamped errors along with their enumerated explanation. The
Calibration History stores information pertaining to the recent PMT response characteristics. Both
of these Logs are more used for troubleshooting than day to day operation.
5.3.3 System Shutdown
Selecting this option generates a user prompt to confirm shutdown. Using this option will not
enable Programmed Acquire (see Programmed Acquire Menu) but will place instrument in an
ultra-low deep sleep mode. Power may be disconnected at this stage without any damage.
5.3.4 File Menu
File Menu is used to monitor and control file storage, retrieval and deletion operations on the
internal flashcard. It has 6 options:
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