4.7
6. The normal measurement display will then appear and the 2500 will be
operational.
While the analyser is warming up, the software configuration to suit the user's particular
requirements may now be accomplished. Proceed to the Quickstart Manual for details
of configuration. Note that during the warming up period, all outputs and alarms are live
and fully operational. All diagnostics are also operational, EXCEPT cell temperature
and chopper box temperature. These last two diagnostics only become operational
once the temperature set points have been reached or after 2 hours (for chopper box)
or 10 hours (for cell) have elapsed from power-up.
At this point process sample may be turned on and allowed to flow through the
2500 sampling system.
NOTES
• The measurement will not be valid at this point since process sample is not
yet flowing.
• If a heated cell is fitted, it will not yet be up to temperature and the intermittent
"warming up" message will be displayed. Depending on set point and/or
environment this may take several hours to reach temperature and the
message to cease.
• The 2500 chopper box will also take up to 2 hours to reach specified
temperature and the "warming up" message will also be displayed until this is
accomplished.
WARNING
Check for no leaks of sample at full operating pressure and temperature
before proceeding. This is especially important for toxic/flammable samples.
NOTE
Where the 3rd (sample/inert) solenoid valve is in use (see Section 3.3.5) the inert
medium will automatically be supplied to the analyser until the cell reaches correct
temperature.
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