Bruker minispec LF Series, User Manual

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Operation
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6.4 General Measurement Handling
The most important commands that are used to control measurements are: the Run
command to start a measurement and the Stop command to interrupt a measurement in
progress. Measurements can be started through a number of commands and by activating a
number of software icons or features. For example, the general Run command can be started
through the RUN button from the top icon bar or bottom button panel, from the pull-down
menu
minispec , or by simply pressing < Enter >. If the user has been given permission to
perform sample calibrations, then the Calibrate command is available. Other forms of
measurement are available for convenience, including a repetitive run command and a
command to detect the raw NMR signal.
The following sequence of actions is generally followed in preparation for measurements:
1. Turn on your minispec and your PC (if they were turned off).
´
Wait until the console CPU/Ethernet process boots, as indicated by the lighting of the
left (green) LEDs located on the front edge of the magnet and console.
2. Connect the PC to the minispec you want to use and configure the software, e.g. choose
applications or an analyzer type.
3. Depending on the application you use (see your application description), start your
measurement or calibration with the Run or Calibrate command.
The software includes full automatic tuning routines to adjust the measurement settings, for
example pulse length, receiver gain, and magnetic field. You can tune these settings
periodically to ensure the instrument validity over time.
The Daily Check command should be executed once a day to check the most important
instrument settings and hardware functionality.
Every 24 hours, a yellow field on the right of the display will automatically indicate the need
for another
Daily Check . Running the Daily Ch eck periodically ensures conformance to
Good Laboratory Practice (GLP).
For minispec.exe software (version 2.8 and higher) as delivered in 2015, an application
version control has been implemented, checking the compatibility of the ExpSpel application,
with other software components, like firmware and FPGA.
Customers using non-compatible versions will get error messages when starting the
applications. The error messages may be ignored, thus running the application with an
incorrect combination of software components. In such a case, the accuracy of the results is
questionable.